wp/wp-includes/query.php
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     1 <?php
       
     2 /**
       
     3  * WordPress Query API
       
     4  *
       
     5  * The query API attempts to get which part of WordPress the user is on. It
       
     6  * also provides functionality for getting URL query information.
       
     7  *
       
     8  * @link http://codex.wordpress.org/The_Loop More information on The Loop.
       
     9  *
       
    10  * @package WordPress
       
    11  * @subpackage Query
       
    12  */
       
    13 
       
    14 /**
       
    15  * Retrieve variable in the WP_Query class.
       
    16  *
       
    17  * @see WP_Query::get()
       
    18  * @since 1.5.0
       
    19  * @uses $wp_query
       
    20  *
       
    21  * @param string $var The variable key to retrieve.
       
    22  * @return mixed
       
    23  */
       
    24 function get_query_var($var) {
       
    25 	global $wp_query;
       
    26 
       
    27 	return $wp_query->get($var);
       
    28 }
       
    29 
       
    30 /**
       
    31  * Retrieve the currently-queried object. Wrapper for $wp_query->get_queried_object()
       
    32  *
       
    33  * @uses WP_Query::get_queried_object
       
    34  *
       
    35  * @since 3.1.0
       
    36  * @access public
       
    37  *
       
    38  * @return object
       
    39  */
       
    40 function get_queried_object() {
       
    41 	global $wp_query;
       
    42 	return $wp_query->get_queried_object();
       
    43 }
       
    44 
       
    45 /**
       
    46  * Retrieve ID of the current queried object. Wrapper for $wp_query->get_queried_object_id()
       
    47  *
       
    48  * @uses WP_Query::get_queried_object_id()
       
    49  *
       
    50  * @since 3.1.0
       
    51  * @access public
       
    52  *
       
    53  * @return int
       
    54  */
       
    55 function get_queried_object_id() {
       
    56 	global $wp_query;
       
    57 	return $wp_query->get_queried_object_id();
       
    58 }
       
    59 
       
    60 /**
       
    61  * Set query variable.
       
    62  *
       
    63  * @see WP_Query::set()
       
    64  * @since 2.2.0
       
    65  * @uses $wp_query
       
    66  *
       
    67  * @param string $var Query variable key.
       
    68  * @param mixed $value
       
    69  * @return null
       
    70  */
       
    71 function set_query_var($var, $value) {
       
    72 	global $wp_query;
       
    73 
       
    74 	return $wp_query->set($var, $value);
       
    75 }
       
    76 
       
    77 /**
       
    78  * Set up The Loop with query parameters.
       
    79  *
       
    80  * This will override the current WordPress Loop and shouldn't be used more than
       
    81  * once. This must not be used within the WordPress Loop.
       
    82  *
       
    83  * @since 1.5.0
       
    84  * @uses $wp_query
       
    85  *
       
    86  * @param string $query
       
    87  * @return array List of posts
       
    88  */
       
    89 function query_posts($query) {
       
    90 	$GLOBALS['wp_query'] = new WP_Query();
       
    91 	return $GLOBALS['wp_query']->query($query);
       
    92 }
       
    93 
       
    94 /**
       
    95  * Destroy the previous query and set up a new query.
       
    96  *
       
    97  * This should be used after {@link query_posts()} and before another {@link
       
    98  * query_posts()}. This will remove obscure bugs that occur when the previous
       
    99  * wp_query object is not destroyed properly before another is set up.
       
   100  *
       
   101  * @since 2.3.0
       
   102  * @uses $wp_query
       
   103  */
       
   104 function wp_reset_query() {
       
   105 	$GLOBALS['wp_query'] = $GLOBALS['wp_the_query'];
       
   106 	wp_reset_postdata();
       
   107 }
       
   108 
       
   109 /**
       
   110  * After looping through a separate query, this function restores
       
   111  * the $post global to the current post in the main query.
       
   112  *
       
   113  * @since 3.0.0
       
   114  * @uses $wp_query
       
   115  */
       
   116 function wp_reset_postdata() {
       
   117 	global $wp_query;
       
   118 	$wp_query->reset_postdata();
       
   119 }
       
   120 
       
   121 /*
       
   122  * Query type checks.
       
   123  */
       
   124 
       
   125 /**
       
   126  * Is the query for an existing archive page?
       
   127  *
       
   128  * Month, Year, Category, Author, Post Type archive...
       
   129  *
       
   130  * @see WP_Query::is_archive()
       
   131  * @since 1.5.0
       
   132  * @uses $wp_query
       
   133  *
       
   134  * @return bool
       
   135  */
       
   136 function is_archive() {
       
   137 	global $wp_query;
       
   138 
       
   139 	if ( ! isset( $wp_query ) ) {
       
   140 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   141 		return false;
       
   142 	}
       
   143 
       
   144 	return $wp_query->is_archive();
       
   145 }
       
   146 
       
   147 /**
       
   148  * Is the query for an existing post type archive page?
       
   149  *
       
   150  * @see WP_Query::is_post_type_archive()
       
   151  * @since 3.1.0
       
   152  * @uses $wp_query
       
   153  *
       
   154  * @param mixed $post_types Optional. Post type or array of posts types to check against.
       
   155  * @return bool
       
   156  */
       
   157 function is_post_type_archive( $post_types = '' ) {
       
   158 	global $wp_query;
       
   159 
       
   160 	if ( ! isset( $wp_query ) ) {
       
   161 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   162 		return false;
       
   163 	}
       
   164 
       
   165 	return $wp_query->is_post_type_archive( $post_types );
       
   166 }
       
   167 
       
   168 /**
       
   169  * Is the query for an existing attachment page?
       
   170  *
       
   171  * @see WP_Query::is_attachment()
       
   172  * @since 2.0.0
       
   173  * @uses $wp_query
       
   174  *
       
   175  * @return bool
       
   176  */
       
   177 function is_attachment() {
       
   178 	global $wp_query;
       
   179 
       
   180 	if ( ! isset( $wp_query ) ) {
       
   181 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   182 		return false;
       
   183 	}
       
   184 
       
   185 	return $wp_query->is_attachment();
       
   186 }
       
   187 
       
   188 /**
       
   189  * Is the query for an existing author archive page?
       
   190  *
       
   191  * If the $author parameter is specified, this function will additionally
       
   192  * check if the query is for one of the authors specified.
       
   193  *
       
   194  * @see WP_Query::is_author()
       
   195  * @since 1.5.0
       
   196  * @uses $wp_query
       
   197  *
       
   198  * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames
       
   199  * @return bool
       
   200  */
       
   201 function is_author( $author = '' ) {
       
   202 	global $wp_query;
       
   203 
       
   204 	if ( ! isset( $wp_query ) ) {
       
   205 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   206 		return false;
       
   207 	}
       
   208 
       
   209 	return $wp_query->is_author( $author );
       
   210 }
       
   211 
       
   212 /**
       
   213  * Is the query for an existing category archive page?
       
   214  *
       
   215  * If the $category parameter is specified, this function will additionally
       
   216  * check if the query is for one of the categories specified.
       
   217  *
       
   218  * @see WP_Query::is_category()
       
   219  * @since 1.5.0
       
   220  * @uses $wp_query
       
   221  *
       
   222  * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.
       
   223  * @return bool
       
   224  */
       
   225 function is_category( $category = '' ) {
       
   226 	global $wp_query;
       
   227 
       
   228 	if ( ! isset( $wp_query ) ) {
       
   229 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   230 		return false;
       
   231 	}
       
   232 
       
   233 	return $wp_query->is_category( $category );
       
   234 }
       
   235 
       
   236 /**
       
   237  * Is the query for an existing tag archive page?
       
   238  *
       
   239  * If the $tag parameter is specified, this function will additionally
       
   240  * check if the query is for one of the tags specified.
       
   241  *
       
   242  * @see WP_Query::is_tag()
       
   243  * @since 2.3.0
       
   244  * @uses $wp_query
       
   245  *
       
   246  * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.
       
   247  * @return bool
       
   248  */
       
   249 function is_tag( $tag = '' ) {
       
   250 	global $wp_query;
       
   251 
       
   252 	if ( ! isset( $wp_query ) ) {
       
   253 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   254 		return false;
       
   255 	}
       
   256 
       
   257 	return $wp_query->is_tag( $tag );
       
   258 }
       
   259 
       
   260 /**
       
   261  * Is the query for an existing taxonomy archive page?
       
   262  *
       
   263  * If the $taxonomy parameter is specified, this function will additionally
       
   264  * check if the query is for that specific $taxonomy.
       
   265  *
       
   266  * If the $term parameter is specified in addition to the $taxonomy parameter,
       
   267  * this function will additionally check if the query is for one of the terms
       
   268  * specified.
       
   269  *
       
   270  * @see WP_Query::is_tax()
       
   271  * @since 2.5.0
       
   272  * @uses $wp_query
       
   273  *
       
   274  * @param mixed $taxonomy Optional. Taxonomy slug or slugs.
       
   275  * @param mixed $term Optional. Term ID, name, slug or array of Term IDs, names, and slugs.
       
   276  * @return bool
       
   277  */
       
   278 function is_tax( $taxonomy = '', $term = '' ) {
       
   279 	global $wp_query;
       
   280 
       
   281 	if ( ! isset( $wp_query ) ) {
       
   282 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   283 		return false;
       
   284 	}
       
   285 
       
   286 	return $wp_query->is_tax( $taxonomy, $term );
       
   287 }
       
   288 
       
   289 /**
       
   290  * Whether the current URL is within the comments popup window.
       
   291  *
       
   292  * @see WP_Query::is_comments_popup()
       
   293  * @since 1.5.0
       
   294  * @uses $wp_query
       
   295  *
       
   296  * @return bool
       
   297  */
       
   298 function is_comments_popup() {
       
   299 	global $wp_query;
       
   300 
       
   301 	if ( ! isset( $wp_query ) ) {
       
   302 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   303 		return false;
       
   304 	}
       
   305 
       
   306 	return $wp_query->is_comments_popup();
       
   307 }
       
   308 
       
   309 /**
       
   310  * Is the query for an existing date archive?
       
   311  *
       
   312  * @see WP_Query::is_date()
       
   313  * @since 1.5.0
       
   314  * @uses $wp_query
       
   315  *
       
   316  * @return bool
       
   317  */
       
   318 function is_date() {
       
   319 	global $wp_query;
       
   320 
       
   321 	if ( ! isset( $wp_query ) ) {
       
   322 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   323 		return false;
       
   324 	}
       
   325 
       
   326 	return $wp_query->is_date();
       
   327 }
       
   328 
       
   329 /**
       
   330  * Is the query for an existing day archive?
       
   331  *
       
   332  * @see WP_Query::is_day()
       
   333  * @since 1.5.0
       
   334  * @uses $wp_query
       
   335  *
       
   336  * @return bool
       
   337  */
       
   338 function is_day() {
       
   339 	global $wp_query;
       
   340 
       
   341 	if ( ! isset( $wp_query ) ) {
       
   342 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   343 		return false;
       
   344 	}
       
   345 
       
   346 	return $wp_query->is_day();
       
   347 }
       
   348 
       
   349 /**
       
   350  * Is the query for a feed?
       
   351  *
       
   352  * @see WP_Query::is_feed()
       
   353  * @since 1.5.0
       
   354  * @uses $wp_query
       
   355  *
       
   356  * @param string|array $feeds Optional feed types to check.
       
   357  * @return bool
       
   358  */
       
   359 function is_feed( $feeds = '' ) {
       
   360 	global $wp_query;
       
   361 
       
   362 	if ( ! isset( $wp_query ) ) {
       
   363 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   364 		return false;
       
   365 	}
       
   366 
       
   367 	return $wp_query->is_feed( $feeds );
       
   368 }
       
   369 
       
   370 /**
       
   371  * Is the query for a comments feed?
       
   372  *
       
   373  * @see WP_Query::is_comments_feed()
       
   374  * @since 3.0.0
       
   375  * @uses $wp_query
       
   376  *
       
   377  * @return bool
       
   378  */
       
   379 function is_comment_feed() {
       
   380 	global $wp_query;
       
   381 
       
   382 	if ( ! isset( $wp_query ) ) {
       
   383 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   384 		return false;
       
   385 	}
       
   386 
       
   387 	return $wp_query->is_comment_feed();
       
   388 }
       
   389 
       
   390 /**
       
   391  * Is the query for the front page of the site?
       
   392  *
       
   393  * This is for what is displayed at your site's main URL.
       
   394  *
       
   395  * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.
       
   396  *
       
   397  * If you set a static page for the front page of your site, this function will return
       
   398  * true when viewing that page.
       
   399  *
       
   400  * Otherwise the same as @see is_home()
       
   401  *
       
   402  * @see WP_Query::is_front_page()
       
   403  * @since 2.5.0
       
   404  * @uses is_home()
       
   405  * @uses get_option()
       
   406  *
       
   407  * @return bool True, if front of site.
       
   408  */
       
   409 function is_front_page() {
       
   410 	global $wp_query;
       
   411 
       
   412 	if ( ! isset( $wp_query ) ) {
       
   413 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   414 		return false;
       
   415 	}
       
   416 
       
   417 	return $wp_query->is_front_page();
       
   418 }
       
   419 
       
   420 /**
       
   421  * Is the query for the blog homepage?
       
   422  *
       
   423  * This is the page which shows the time based blog content of your site.
       
   424  *
       
   425  * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.
       
   426  *
       
   427  * If you set a static page for the front page of your site, this function will return
       
   428  * true only on the page you set as the "Posts page".
       
   429  *
       
   430  * @see is_front_page()
       
   431  *
       
   432  * @see WP_Query::is_home()
       
   433  * @since 1.5.0
       
   434  * @uses $wp_query
       
   435  *
       
   436  * @return bool True if blog view homepage.
       
   437  */
       
   438 function is_home() {
       
   439 	global $wp_query;
       
   440 
       
   441 	if ( ! isset( $wp_query ) ) {
       
   442 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   443 		return false;
       
   444 	}
       
   445 
       
   446 	return $wp_query->is_home();
       
   447 }
       
   448 
       
   449 /**
       
   450  * Is the query for an existing month archive?
       
   451  *
       
   452  * @see WP_Query::is_month()
       
   453  * @since 1.5.0
       
   454  * @uses $wp_query
       
   455  *
       
   456  * @return bool
       
   457  */
       
   458 function is_month() {
       
   459 	global $wp_query;
       
   460 
       
   461 	if ( ! isset( $wp_query ) ) {
       
   462 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   463 		return false;
       
   464 	}
       
   465 
       
   466 	return $wp_query->is_month();
       
   467 }
       
   468 
       
   469 /**
       
   470  * Is the query for an existing single page?
       
   471  *
       
   472  * If the $page parameter is specified, this function will additionally
       
   473  * check if the query is for one of the pages specified.
       
   474  *
       
   475  * @see is_single()
       
   476  * @see is_singular()
       
   477  *
       
   478  * @see WP_Query::is_page()
       
   479  * @since 1.5.0
       
   480  * @uses $wp_query
       
   481  *
       
   482  * @param mixed $page Page ID, title, slug, or array of such.
       
   483  * @return bool
       
   484  */
       
   485 function is_page( $page = '' ) {
       
   486 	global $wp_query;
       
   487 
       
   488 	if ( ! isset( $wp_query ) ) {
       
   489 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   490 		return false;
       
   491 	}
       
   492 
       
   493 	return $wp_query->is_page( $page );
       
   494 }
       
   495 
       
   496 /**
       
   497  * Is the query for paged result and not for the first page?
       
   498  *
       
   499  * @see WP_Query::is_paged()
       
   500  * @since 1.5.0
       
   501  * @uses $wp_query
       
   502  *
       
   503  * @return bool
       
   504  */
       
   505 function is_paged() {
       
   506 	global $wp_query;
       
   507 
       
   508 	if ( ! isset( $wp_query ) ) {
       
   509 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   510 		return false;
       
   511 	}
       
   512 
       
   513 	return $wp_query->is_paged();
       
   514 }
       
   515 
       
   516 /**
       
   517  * Is the query for a post or page preview?
       
   518  *
       
   519  * @see WP_Query::is_preview()
       
   520  * @since 2.0.0
       
   521  * @uses $wp_query
       
   522  *
       
   523  * @return bool
       
   524  */
       
   525 function is_preview() {
       
   526 	global $wp_query;
       
   527 
       
   528 	if ( ! isset( $wp_query ) ) {
       
   529 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   530 		return false;
       
   531 	}
       
   532 
       
   533 	return $wp_query->is_preview();
       
   534 }
       
   535 
       
   536 /**
       
   537  * Is the query for the robots file?
       
   538  *
       
   539  * @see WP_Query::is_robots()
       
   540  * @since 2.1.0
       
   541  * @uses $wp_query
       
   542  *
       
   543  * @return bool
       
   544  */
       
   545 function is_robots() {
       
   546 	global $wp_query;
       
   547 
       
   548 	if ( ! isset( $wp_query ) ) {
       
   549 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   550 		return false;
       
   551 	}
       
   552 
       
   553 	return $wp_query->is_robots();
       
   554 }
       
   555 
       
   556 /**
       
   557  * Is the query for a search?
       
   558  *
       
   559  * @see WP_Query::is_search()
       
   560  * @since 1.5.0
       
   561  * @uses $wp_query
       
   562  *
       
   563  * @return bool
       
   564  */
       
   565 function is_search() {
       
   566 	global $wp_query;
       
   567 
       
   568 	if ( ! isset( $wp_query ) ) {
       
   569 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   570 		return false;
       
   571 	}
       
   572 
       
   573 	return $wp_query->is_search();
       
   574 }
       
   575 
       
   576 /**
       
   577  * Is the query for an existing single post?
       
   578  *
       
   579  * Works for any post type, except attachments and pages
       
   580  *
       
   581  * If the $post parameter is specified, this function will additionally
       
   582  * check if the query is for one of the Posts specified.
       
   583  *
       
   584  * @see is_page()
       
   585  * @see is_singular()
       
   586  *
       
   587  * @see WP_Query::is_single()
       
   588  * @since 1.5.0
       
   589  * @uses $wp_query
       
   590  *
       
   591  * @param mixed $post Post ID, title, slug, or array of such.
       
   592  * @return bool
       
   593  */
       
   594 function is_single( $post = '' ) {
       
   595 	global $wp_query;
       
   596 
       
   597 	if ( ! isset( $wp_query ) ) {
       
   598 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   599 		return false;
       
   600 	}
       
   601 
       
   602 	return $wp_query->is_single( $post );
       
   603 }
       
   604 
       
   605 /**
       
   606  * Is the query for an existing single post of any post type (post, attachment, page, ... )?
       
   607  *
       
   608  * If the $post_types parameter is specified, this function will additionally
       
   609  * check if the query is for one of the Posts Types specified.
       
   610  *
       
   611  * @see is_page()
       
   612  * @see is_single()
       
   613  *
       
   614  * @see WP_Query::is_singular()
       
   615  * @since 1.5.0
       
   616  * @uses $wp_query
       
   617  *
       
   618  * @param mixed $post_types Optional. Post Type or array of Post Types
       
   619  * @return bool
       
   620  */
       
   621 function is_singular( $post_types = '' ) {
       
   622 	global $wp_query;
       
   623 
       
   624 	if ( ! isset( $wp_query ) ) {
       
   625 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   626 		return false;
       
   627 	}
       
   628 
       
   629 	return $wp_query->is_singular( $post_types );
       
   630 }
       
   631 
       
   632 /**
       
   633  * Is the query for a specific time?
       
   634  *
       
   635  * @see WP_Query::is_time()
       
   636  * @since 1.5.0
       
   637  * @uses $wp_query
       
   638  *
       
   639  * @return bool
       
   640  */
       
   641 function is_time() {
       
   642 	global $wp_query;
       
   643 
       
   644 	if ( ! isset( $wp_query ) ) {
       
   645 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   646 		return false;
       
   647 	}
       
   648 
       
   649 	return $wp_query->is_time();
       
   650 }
       
   651 
       
   652 /**
       
   653  * Is the query for a trackback endpoint call?
       
   654  *
       
   655  * @see WP_Query::is_trackback()
       
   656  * @since 1.5.0
       
   657  * @uses $wp_query
       
   658  *
       
   659  * @return bool
       
   660  */
       
   661 function is_trackback() {
       
   662 	global $wp_query;
       
   663 
       
   664 	if ( ! isset( $wp_query ) ) {
       
   665 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   666 		return false;
       
   667 	}
       
   668 
       
   669 	return $wp_query->is_trackback();
       
   670 }
       
   671 
       
   672 /**
       
   673  * Is the query for an existing year archive?
       
   674  *
       
   675  * @see WP_Query::is_year()
       
   676  * @since 1.5.0
       
   677  * @uses $wp_query
       
   678  *
       
   679  * @return bool
       
   680  */
       
   681 function is_year() {
       
   682 	global $wp_query;
       
   683 
       
   684 	if ( ! isset( $wp_query ) ) {
       
   685 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   686 		return false;
       
   687 	}
       
   688 
       
   689 	return $wp_query->is_year();
       
   690 }
       
   691 
       
   692 /**
       
   693  * Is the query a 404 (returns no results)?
       
   694  *
       
   695  * @see WP_Query::is_404()
       
   696  * @since 1.5.0
       
   697  * @uses $wp_query
       
   698  *
       
   699  * @return bool
       
   700  */
       
   701 function is_404() {
       
   702 	global $wp_query;
       
   703 
       
   704 	if ( ! isset( $wp_query ) ) {
       
   705 		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );
       
   706 		return false;
       
   707 	}
       
   708 
       
   709 	return $wp_query->is_404();
       
   710 }
       
   711 
       
   712 /**
       
   713  * Is the query the main query?
       
   714  *
       
   715  * @since 3.3.0
       
   716  *
       
   717  * @return bool
       
   718  */
       
   719 function is_main_query() {
       
   720 	if ( 'pre_get_posts' === current_filter() ) {
       
   721 		$message = sprintf( __( 'In <code>%1$s</code>, use the <code>%2$s</code> method, not the <code>%3$s</code> function. See %4$s.' ),
       
   722 			'pre_get_posts', 'WP_Query::is_main_query()', 'is_main_query()', __( 'http://codex.wordpress.org/Function_Reference/is_main_query' ) );
       
   723 		_doing_it_wrong( __FUNCTION__, $message, '3.7' );
       
   724 	}
       
   725 
       
   726 	global $wp_query;
       
   727 	return $wp_query->is_main_query();
       
   728 }
       
   729 
       
   730 /*
       
   731  * The Loop. Post loop control.
       
   732  */
       
   733 
       
   734 /**
       
   735  * Whether current WordPress query has results to loop over.
       
   736  *
       
   737  * @see WP_Query::have_posts()
       
   738  * @since 1.5.0
       
   739  * @uses $wp_query
       
   740  *
       
   741  * @return bool
       
   742  */
       
   743 function have_posts() {
       
   744 	global $wp_query;
       
   745 
       
   746 	return $wp_query->have_posts();
       
   747 }
       
   748 
       
   749 /**
       
   750  * Whether the caller is in the Loop.
       
   751  *
       
   752  * @since 2.0.0
       
   753  * @uses $wp_query
       
   754  *
       
   755  * @return bool True if caller is within loop, false if loop hasn't started or ended.
       
   756  */
       
   757 function in_the_loop() {
       
   758 	global $wp_query;
       
   759 
       
   760 	return $wp_query->in_the_loop;
       
   761 }
       
   762 
       
   763 /**
       
   764  * Rewind the loop posts.
       
   765  *
       
   766  * @see WP_Query::rewind_posts()
       
   767  * @since 1.5.0
       
   768  * @uses $wp_query
       
   769  *
       
   770  * @return null
       
   771  */
       
   772 function rewind_posts() {
       
   773 	global $wp_query;
       
   774 
       
   775 	return $wp_query->rewind_posts();
       
   776 }
       
   777 
       
   778 /**
       
   779  * Iterate the post index in the loop.
       
   780  *
       
   781  * @see WP_Query::the_post()
       
   782  * @since 1.5.0
       
   783  * @uses $wp_query
       
   784  */
       
   785 function the_post() {
       
   786 	global $wp_query;
       
   787 
       
   788 	$wp_query->the_post();
       
   789 }
       
   790 
       
   791 /*
       
   792  * Comments loop.
       
   793  */
       
   794 
       
   795 /**
       
   796  * Whether there are comments to loop over.
       
   797  *
       
   798  * @see WP_Query::have_comments()
       
   799  * @since 2.2.0
       
   800  * @uses $wp_query
       
   801  *
       
   802  * @return bool
       
   803  */
       
   804 function have_comments() {
       
   805 	global $wp_query;
       
   806 	return $wp_query->have_comments();
       
   807 }
       
   808 
       
   809 /**
       
   810  * Iterate comment index in the comment loop.
       
   811  *
       
   812  * @see WP_Query::the_comment()
       
   813  * @since 2.2.0
       
   814  * @uses $wp_query
       
   815  *
       
   816  * @return object
       
   817  */
       
   818 function the_comment() {
       
   819 	global $wp_query;
       
   820 	return $wp_query->the_comment();
       
   821 }
       
   822 
       
   823 /*
       
   824  * WP_Query
       
   825  */
       
   826 
       
   827 /**
       
   828  * The WordPress Query class.
       
   829  *
       
   830  * @link http://codex.wordpress.org/Function_Reference/WP_Query Codex page.
       
   831  *
       
   832  * @since 1.5.0
       
   833  */
       
   834 class WP_Query {
       
   835 
       
   836 	/**
       
   837 	 * Query vars set by the user
       
   838 	 *
       
   839 	 * @since 1.5.0
       
   840 	 * @access public
       
   841 	 * @var array
       
   842 	 */
       
   843 	var $query;
       
   844 
       
   845 	/**
       
   846 	 * Query vars, after parsing
       
   847 	 *
       
   848 	 * @since 1.5.0
       
   849 	 * @access public
       
   850 	 * @var array
       
   851 	 */
       
   852 	var $query_vars = array();
       
   853 
       
   854 	/**
       
   855 	 * Taxonomy query, as passed to get_tax_sql()
       
   856 	 *
       
   857 	 * @since 3.1.0
       
   858 	 * @access public
       
   859 	 * @var object WP_Tax_Query
       
   860 	 */
       
   861 	var $tax_query;
       
   862 
       
   863 	/**
       
   864 	 * Metadata query container
       
   865 	 *
       
   866 	 * @since 3.2.0
       
   867 	 * @access public
       
   868 	 * @var object WP_Meta_Query
       
   869 	 */
       
   870 	var $meta_query = false;
       
   871 
       
   872 	/**
       
   873 	 * Date query container
       
   874 	 *
       
   875 	 * @since 3.7.0
       
   876 	 * @access public
       
   877 	 * @var object WP_Date_Query
       
   878 	 */
       
   879 	var $date_query = false;
       
   880 
       
   881 	/**
       
   882 	 * Holds the data for a single object that is queried.
       
   883 	 *
       
   884 	 * Holds the contents of a post, page, category, attachment.
       
   885 	 *
       
   886 	 * @since 1.5.0
       
   887 	 * @access public
       
   888 	 * @var object|array
       
   889 	 */
       
   890 	var $queried_object;
       
   891 
       
   892 	/**
       
   893 	 * The ID of the queried object.
       
   894 	 *
       
   895 	 * @since 1.5.0
       
   896 	 * @access public
       
   897 	 * @var int
       
   898 	 */
       
   899 	var $queried_object_id;
       
   900 
       
   901 	/**
       
   902 	 * Get post database query.
       
   903 	 *
       
   904 	 * @since 2.0.1
       
   905 	 * @access public
       
   906 	 * @var string
       
   907 	 */
       
   908 	var $request;
       
   909 
       
   910 	/**
       
   911 	 * List of posts.
       
   912 	 *
       
   913 	 * @since 1.5.0
       
   914 	 * @access public
       
   915 	 * @var array
       
   916 	 */
       
   917 	var $posts;
       
   918 
       
   919 	/**
       
   920 	 * The amount of posts for the current query.
       
   921 	 *
       
   922 	 * @since 1.5.0
       
   923 	 * @access public
       
   924 	 * @var int
       
   925 	 */
       
   926 	var $post_count = 0;
       
   927 
       
   928 	/**
       
   929 	 * Index of the current item in the loop.
       
   930 	 *
       
   931 	 * @since 1.5.0
       
   932 	 * @access public
       
   933 	 * @var int
       
   934 	 */
       
   935 	var $current_post = -1;
       
   936 
       
   937 	/**
       
   938 	 * Whether the loop has started and the caller is in the loop.
       
   939 	 *
       
   940 	 * @since 2.0.0
       
   941 	 * @access public
       
   942 	 * @var bool
       
   943 	 */
       
   944 	var $in_the_loop = false;
       
   945 
       
   946 	/**
       
   947 	 * The current post.
       
   948 	 *
       
   949 	 * @since 1.5.0
       
   950 	 * @access public
       
   951 	 * @var WP_Post
       
   952 	 */
       
   953 	var $post;
       
   954 
       
   955 	/**
       
   956 	 * The list of comments for current post.
       
   957 	 *
       
   958 	 * @since 2.2.0
       
   959 	 * @access public
       
   960 	 * @var array
       
   961 	 */
       
   962 	var $comments;
       
   963 
       
   964 	/**
       
   965 	 * The amount of comments for the posts.
       
   966 	 *
       
   967 	 * @since 2.2.0
       
   968 	 * @access public
       
   969 	 * @var int
       
   970 	 */
       
   971 	var $comment_count = 0;
       
   972 
       
   973 	/**
       
   974 	 * The index of the comment in the comment loop.
       
   975 	 *
       
   976 	 * @since 2.2.0
       
   977 	 * @access public
       
   978 	 * @var int
       
   979 	 */
       
   980 	var $current_comment = -1;
       
   981 
       
   982 	/**
       
   983 	 * Current comment ID.
       
   984 	 *
       
   985 	 * @since 2.2.0
       
   986 	 * @access public
       
   987 	 * @var int
       
   988 	 */
       
   989 	var $comment;
       
   990 
       
   991 	/**
       
   992 	 * The amount of found posts for the current query.
       
   993 	 *
       
   994 	 * If limit clause was not used, equals $post_count.
       
   995 	 *
       
   996 	 * @since 2.1.0
       
   997 	 * @access public
       
   998 	 * @var int
       
   999 	 */
       
  1000 	var $found_posts = 0;
       
  1001 
       
  1002 	/**
       
  1003 	 * The amount of pages.
       
  1004 	 *
       
  1005 	 * @since 2.1.0
       
  1006 	 * @access public
       
  1007 	 * @var int
       
  1008 	 */
       
  1009 	var $max_num_pages = 0;
       
  1010 
       
  1011 	/**
       
  1012 	 * The amount of comment pages.
       
  1013 	 *
       
  1014 	 * @since 2.7.0
       
  1015 	 * @access public
       
  1016 	 * @var int
       
  1017 	 */
       
  1018 	var $max_num_comment_pages = 0;
       
  1019 
       
  1020 	/**
       
  1021 	 * Set if query is single post.
       
  1022 	 *
       
  1023 	 * @since 1.5.0
       
  1024 	 * @access public
       
  1025 	 * @var bool
       
  1026 	 */
       
  1027 	var $is_single = false;
       
  1028 
       
  1029 	/**
       
  1030 	 * Set if query is preview of blog.
       
  1031 	 *
       
  1032 	 * @since 2.0.0
       
  1033 	 * @access public
       
  1034 	 * @var bool
       
  1035 	 */
       
  1036 	var $is_preview = false;
       
  1037 
       
  1038 	/**
       
  1039 	 * Set if query returns a page.
       
  1040 	 *
       
  1041 	 * @since 1.5.0
       
  1042 	 * @access public
       
  1043 	 * @var bool
       
  1044 	 */
       
  1045 	var $is_page = false;
       
  1046 
       
  1047 	/**
       
  1048 	 * Set if query is an archive list.
       
  1049 	 *
       
  1050 	 * @since 1.5.0
       
  1051 	 * @access public
       
  1052 	 * @var bool
       
  1053 	 */
       
  1054 	var $is_archive = false;
       
  1055 
       
  1056 	/**
       
  1057 	 * Set if query is part of a date.
       
  1058 	 *
       
  1059 	 * @since 1.5.0
       
  1060 	 * @access public
       
  1061 	 * @var bool
       
  1062 	 */
       
  1063 	var $is_date = false;
       
  1064 
       
  1065 	/**
       
  1066 	 * Set if query contains a year.
       
  1067 	 *
       
  1068 	 * @since 1.5.0
       
  1069 	 * @access public
       
  1070 	 * @var bool
       
  1071 	 */
       
  1072 	var $is_year = false;
       
  1073 
       
  1074 	/**
       
  1075 	 * Set if query contains a month.
       
  1076 	 *
       
  1077 	 * @since 1.5.0
       
  1078 	 * @access public
       
  1079 	 * @var bool
       
  1080 	 */
       
  1081 	var $is_month = false;
       
  1082 
       
  1083 	/**
       
  1084 	 * Set if query contains a day.
       
  1085 	 *
       
  1086 	 * @since 1.5.0
       
  1087 	 * @access public
       
  1088 	 * @var bool
       
  1089 	 */
       
  1090 	var $is_day = false;
       
  1091 
       
  1092 	/**
       
  1093 	 * Set if query contains time.
       
  1094 	 *
       
  1095 	 * @since 1.5.0
       
  1096 	 * @access public
       
  1097 	 * @var bool
       
  1098 	 */
       
  1099 	var $is_time = false;
       
  1100 
       
  1101 	/**
       
  1102 	 * Set if query contains an author.
       
  1103 	 *
       
  1104 	 * @since 1.5.0
       
  1105 	 * @access public
       
  1106 	 * @var bool
       
  1107 	 */
       
  1108 	var $is_author = false;
       
  1109 
       
  1110 	/**
       
  1111 	 * Set if query contains category.
       
  1112 	 *
       
  1113 	 * @since 1.5.0
       
  1114 	 * @access public
       
  1115 	 * @var bool
       
  1116 	 */
       
  1117 	var $is_category = false;
       
  1118 
       
  1119 	/**
       
  1120 	 * Set if query contains tag.
       
  1121 	 *
       
  1122 	 * @since 2.3.0
       
  1123 	 * @access public
       
  1124 	 * @var bool
       
  1125 	 */
       
  1126 	var $is_tag = false;
       
  1127 
       
  1128 	/**
       
  1129 	 * Set if query contains taxonomy.
       
  1130 	 *
       
  1131 	 * @since 2.5.0
       
  1132 	 * @access public
       
  1133 	 * @var bool
       
  1134 	 */
       
  1135 	var $is_tax = false;
       
  1136 
       
  1137 	/**
       
  1138 	 * Set if query was part of a search result.
       
  1139 	 *
       
  1140 	 * @since 1.5.0
       
  1141 	 * @access public
       
  1142 	 * @var bool
       
  1143 	 */
       
  1144 	var $is_search = false;
       
  1145 
       
  1146 	/**
       
  1147 	 * Set if query is feed display.
       
  1148 	 *
       
  1149 	 * @since 1.5.0
       
  1150 	 * @access public
       
  1151 	 * @var bool
       
  1152 	 */
       
  1153 	var $is_feed = false;
       
  1154 
       
  1155 	/**
       
  1156 	 * Set if query is comment feed display.
       
  1157 	 *
       
  1158 	 * @since 2.2.0
       
  1159 	 * @access public
       
  1160 	 * @var bool
       
  1161 	 */
       
  1162 	var $is_comment_feed = false;
       
  1163 
       
  1164 	/**
       
  1165 	 * Set if query is trackback.
       
  1166 	 *
       
  1167 	 * @since 1.5.0
       
  1168 	 * @access public
       
  1169 	 * @var bool
       
  1170 	 */
       
  1171 	var $is_trackback = false;
       
  1172 
       
  1173 	/**
       
  1174 	 * Set if query is blog homepage.
       
  1175 	 *
       
  1176 	 * @since 1.5.0
       
  1177 	 * @access public
       
  1178 	 * @var bool
       
  1179 	 */
       
  1180 	var $is_home = false;
       
  1181 
       
  1182 	/**
       
  1183 	 * Set if query couldn't found anything.
       
  1184 	 *
       
  1185 	 * @since 1.5.0
       
  1186 	 * @access public
       
  1187 	 * @var bool
       
  1188 	 */
       
  1189 	var $is_404 = false;
       
  1190 
       
  1191 	/**
       
  1192 	 * Set if query is within comments popup window.
       
  1193 	 *
       
  1194 	 * @since 1.5.0
       
  1195 	 * @access public
       
  1196 	 * @var bool
       
  1197 	 */
       
  1198 	var $is_comments_popup = false;
       
  1199 
       
  1200 	/**
       
  1201 	 * Set if query is paged
       
  1202 	 *
       
  1203 	 * @since 1.5.0
       
  1204 	 * @access public
       
  1205 	 * @var bool
       
  1206 	 */
       
  1207 	var $is_paged = false;
       
  1208 
       
  1209 	/**
       
  1210 	 * Set if query is part of administration page.
       
  1211 	 *
       
  1212 	 * @since 1.5.0
       
  1213 	 * @access public
       
  1214 	 * @var bool
       
  1215 	 */
       
  1216 	var $is_admin = false;
       
  1217 
       
  1218 	/**
       
  1219 	 * Set if query is an attachment.
       
  1220 	 *
       
  1221 	 * @since 2.0.0
       
  1222 	 * @access public
       
  1223 	 * @var bool
       
  1224 	 */
       
  1225 	var $is_attachment = false;
       
  1226 
       
  1227 	/**
       
  1228 	 * Set if is single, is a page, or is an attachment.
       
  1229 	 *
       
  1230 	 * @since 2.1.0
       
  1231 	 * @access public
       
  1232 	 * @var bool
       
  1233 	 */
       
  1234 	var $is_singular = false;
       
  1235 
       
  1236 	/**
       
  1237 	 * Set if query is for robots.
       
  1238 	 *
       
  1239 	 * @since 2.1.0
       
  1240 	 * @access public
       
  1241 	 * @var bool
       
  1242 	 */
       
  1243 	var $is_robots = false;
       
  1244 
       
  1245 	/**
       
  1246 	 * Set if query contains posts.
       
  1247 	 *
       
  1248 	 * Basically, the homepage if the option isn't set for the static homepage.
       
  1249 	 *
       
  1250 	 * @since 2.1.0
       
  1251 	 * @access public
       
  1252 	 * @var bool
       
  1253 	 */
       
  1254 	var $is_posts_page = false;
       
  1255 
       
  1256 	/**
       
  1257 	 * Set if query is for a post type archive.
       
  1258 	 *
       
  1259 	 * @since 3.1.0
       
  1260 	 * @access public
       
  1261 	 * @var bool
       
  1262 	 */
       
  1263 	var $is_post_type_archive = false;
       
  1264 
       
  1265 	/**
       
  1266 	 * Stores the ->query_vars state like md5(serialize( $this->query_vars ) ) so we know
       
  1267 	 * whether we have to re-parse because something has changed
       
  1268 	 *
       
  1269 	 * @since 3.1.0
       
  1270 	 * @access private
       
  1271 	 */
       
  1272 	var $query_vars_hash = false;
       
  1273 
       
  1274 	/**
       
  1275 	 * Whether query vars have changed since the initial parse_query() call. Used to catch modifications to query vars made
       
  1276 	 * via pre_get_posts hooks.
       
  1277 	 *
       
  1278 	 * @since 3.1.1
       
  1279 	 * @access private
       
  1280 	 */
       
  1281 	var $query_vars_changed = true;
       
  1282 
       
  1283 	/**
       
  1284 	 * Set if post thumbnails are cached
       
  1285 	 *
       
  1286 	 * @since 3.2.0
       
  1287 	 * @access public
       
  1288 	 * @var bool
       
  1289 	 */
       
  1290 	 var $thumbnails_cached = false;
       
  1291 
       
  1292 	/**
       
  1293 	 * Cached list of search stopwords.
       
  1294 	 *
       
  1295 	 * @since 3.7.0
       
  1296 	 * @var array
       
  1297 	 */
       
  1298 	private $stopwords;
       
  1299 
       
  1300 	/**
       
  1301 	 * Resets query flags to false.
       
  1302 	 *
       
  1303 	 * The query flags are what page info WordPress was able to figure out.
       
  1304 	 *
       
  1305 	 * @since 2.0.0
       
  1306 	 * @access private
       
  1307 	 */
       
  1308 	function init_query_flags() {
       
  1309 		$this->is_single = false;
       
  1310 		$this->is_preview = false;
       
  1311 		$this->is_page = false;
       
  1312 		$this->is_archive = false;
       
  1313 		$this->is_date = false;
       
  1314 		$this->is_year = false;
       
  1315 		$this->is_month = false;
       
  1316 		$this->is_day = false;
       
  1317 		$this->is_time = false;
       
  1318 		$this->is_author = false;
       
  1319 		$this->is_category = false;
       
  1320 		$this->is_tag = false;
       
  1321 		$this->is_tax = false;
       
  1322 		$this->is_search = false;
       
  1323 		$this->is_feed = false;
       
  1324 		$this->is_comment_feed = false;
       
  1325 		$this->is_trackback = false;
       
  1326 		$this->is_home = false;
       
  1327 		$this->is_404 = false;
       
  1328 		$this->is_comments_popup = false;
       
  1329 		$this->is_paged = false;
       
  1330 		$this->is_admin = false;
       
  1331 		$this->is_attachment = false;
       
  1332 		$this->is_singular = false;
       
  1333 		$this->is_robots = false;
       
  1334 		$this->is_posts_page = false;
       
  1335 		$this->is_post_type_archive = false;
       
  1336 	}
       
  1337 
       
  1338 	/**
       
  1339 	 * Initiates object properties and sets default values.
       
  1340 	 *
       
  1341 	 * @since 1.5.0
       
  1342 	 * @access public
       
  1343 	 */
       
  1344 	function init() {
       
  1345 		unset($this->posts);
       
  1346 		unset($this->query);
       
  1347 		$this->query_vars = array();
       
  1348 		unset($this->queried_object);
       
  1349 		unset($this->queried_object_id);
       
  1350 		$this->post_count = 0;
       
  1351 		$this->current_post = -1;
       
  1352 		$this->in_the_loop = false;
       
  1353 		unset( $this->request );
       
  1354 		unset( $this->post );
       
  1355 		unset( $this->comments );
       
  1356 		unset( $this->comment );
       
  1357 		$this->comment_count = 0;
       
  1358 		$this->current_comment = -1;
       
  1359 		$this->found_posts = 0;
       
  1360 		$this->max_num_pages = 0;
       
  1361 		$this->max_num_comment_pages = 0;
       
  1362 
       
  1363 		$this->init_query_flags();
       
  1364 	}
       
  1365 
       
  1366 	/**
       
  1367 	 * Reparse the query vars.
       
  1368 	 *
       
  1369 	 * @since 1.5.0
       
  1370 	 * @access public
       
  1371 	 */
       
  1372 	function parse_query_vars() {
       
  1373 		$this->parse_query();
       
  1374 	}
       
  1375 
       
  1376 	/**
       
  1377 	 * Fills in the query variables, which do not exist within the parameter.
       
  1378 	 *
       
  1379 	 * @since 2.1.0
       
  1380 	 * @access public
       
  1381 	 *
       
  1382 	 * @param array $array Defined query variables.
       
  1383 	 * @return array Complete query variables with undefined ones filled in empty.
       
  1384 	 */
       
  1385 	function fill_query_vars($array) {
       
  1386 		$keys = array(
       
  1387 			'error'
       
  1388 			, 'm'
       
  1389 			, 'p'
       
  1390 			, 'post_parent'
       
  1391 			, 'subpost'
       
  1392 			, 'subpost_id'
       
  1393 			, 'attachment'
       
  1394 			, 'attachment_id'
       
  1395 			, 'name'
       
  1396 			, 'static'
       
  1397 			, 'pagename'
       
  1398 			, 'page_id'
       
  1399 			, 'second'
       
  1400 			, 'minute'
       
  1401 			, 'hour'
       
  1402 			, 'day'
       
  1403 			, 'monthnum'
       
  1404 			, 'year'
       
  1405 			, 'w'
       
  1406 			, 'category_name'
       
  1407 			, 'tag'
       
  1408 			, 'cat'
       
  1409 			, 'tag_id'
       
  1410 			, 'author'
       
  1411 			, 'author_name'
       
  1412 			, 'feed'
       
  1413 			, 'tb'
       
  1414 			, 'paged'
       
  1415 			, 'comments_popup'
       
  1416 			, 'meta_key'
       
  1417 			, 'meta_value'
       
  1418 			, 'preview'
       
  1419 			, 's'
       
  1420 			, 'sentence'
       
  1421 			, 'fields'
       
  1422 			, 'menu_order'
       
  1423 		);
       
  1424 
       
  1425 		foreach ( $keys as $key ) {
       
  1426 			if ( !isset($array[$key]) )
       
  1427 				$array[$key] = '';
       
  1428 		}
       
  1429 
       
  1430 		$array_keys = array( 'category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',
       
  1431 			'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'post_parent__in', 'post_parent__not_in',
       
  1432 			'author__in', 'author__not_in' );
       
  1433 
       
  1434 		foreach ( $array_keys as $key ) {
       
  1435 			if ( !isset($array[$key]) )
       
  1436 				$array[$key] = array();
       
  1437 		}
       
  1438 		return $array;
       
  1439 	}
       
  1440 
       
  1441 	/**
       
  1442 	 * Parse a query string and set query type booleans.
       
  1443 	 *
       
  1444 	 * @since 1.5.0
       
  1445 	 * @access public
       
  1446 	 *
       
  1447 	 * @param string|array $query Optional query.
       
  1448 	 */
       
  1449 	function parse_query( $query =  '' ) {
       
  1450 		if ( ! empty( $query ) ) {
       
  1451 			$this->init();
       
  1452 			$this->query = $this->query_vars = wp_parse_args( $query );
       
  1453 		} elseif ( ! isset( $this->query ) ) {
       
  1454 			$this->query = $this->query_vars;
       
  1455 		}
       
  1456 
       
  1457 		$this->query_vars = $this->fill_query_vars($this->query_vars);
       
  1458 		$qv = &$this->query_vars;
       
  1459 		$this->query_vars_changed = true;
       
  1460 
       
  1461 		if ( ! empty($qv['robots']) )
       
  1462 			$this->is_robots = true;
       
  1463 
       
  1464 		$qv['p'] =  absint($qv['p']);
       
  1465 		$qv['page_id'] =  absint($qv['page_id']);
       
  1466 		$qv['year'] = absint($qv['year']);
       
  1467 		$qv['monthnum'] = absint($qv['monthnum']);
       
  1468 		$qv['day'] = absint($qv['day']);
       
  1469 		$qv['w'] = absint($qv['w']);
       
  1470 		$qv['m'] = preg_replace( '|[^0-9]|', '', $qv['m'] );
       
  1471 		$qv['paged'] = absint($qv['paged']);
       
  1472 		$qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
       
  1473 		$qv['author'] = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers
       
  1474 		$qv['pagename'] = trim( $qv['pagename'] );
       
  1475 		$qv['name'] = trim( $qv['name'] );
       
  1476 		if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);
       
  1477 		if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);
       
  1478 		if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);
       
  1479 		if ( '' !== $qv['menu_order'] ) $qv['menu_order'] = absint($qv['menu_order']);
       
  1480 
       
  1481 		// Fairly insane upper bound for search string lengths.
       
  1482 		if ( ! empty( $qv['s'] ) && strlen( $qv['s'] ) > 1600 )
       
  1483 			$qv['s'] = '';
       
  1484 
       
  1485 		// Compat. Map subpost to attachment.
       
  1486 		if ( '' != $qv['subpost'] )
       
  1487 			$qv['attachment'] = $qv['subpost'];
       
  1488 		if ( '' != $qv['subpost_id'] )
       
  1489 			$qv['attachment_id'] = $qv['subpost_id'];
       
  1490 
       
  1491 		$qv['attachment_id'] = absint($qv['attachment_id']);
       
  1492 
       
  1493 		if ( ('' != $qv['attachment']) || !empty($qv['attachment_id']) ) {
       
  1494 			$this->is_single = true;
       
  1495 			$this->is_attachment = true;
       
  1496 		} elseif ( '' != $qv['name'] ) {
       
  1497 			$this->is_single = true;
       
  1498 		} elseif ( $qv['p'] ) {
       
  1499 			$this->is_single = true;
       
  1500 		} elseif ( ('' !== $qv['hour']) && ('' !== $qv['minute']) &&('' !== $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day']) ) {
       
  1501 			// If year, month, day, hour, minute, and second are set, a single
       
  1502 			// post is being queried.
       
  1503 			$this->is_single = true;
       
  1504 		} elseif ( '' != $qv['static'] || '' != $qv['pagename'] || !empty($qv['page_id']) ) {
       
  1505 			$this->is_page = true;
       
  1506 			$this->is_single = false;
       
  1507 		} else {
       
  1508 		// Look for archive queries. Dates, categories, authors, search, post type archives.
       
  1509 
       
  1510 			if ( !empty($qv['s']) ) {
       
  1511 				$this->is_search = true;
       
  1512 			}
       
  1513 
       
  1514 			if ( '' !== $qv['second'] ) {
       
  1515 				$this->is_time = true;
       
  1516 				$this->is_date = true;
       
  1517 			}
       
  1518 
       
  1519 			if ( '' !== $qv['minute'] ) {
       
  1520 				$this->is_time = true;
       
  1521 				$this->is_date = true;
       
  1522 			}
       
  1523 
       
  1524 			if ( '' !== $qv['hour'] ) {
       
  1525 				$this->is_time = true;
       
  1526 				$this->is_date = true;
       
  1527 			}
       
  1528 
       
  1529 			if ( $qv['day'] ) {
       
  1530 				if ( ! $this->is_date ) {
       
  1531 					$date = sprintf( '%04d-%02d-%02d', $qv['year'], $qv['monthnum'], $qv['day'] );
       
  1532 					if ( $qv['monthnum'] && $qv['year'] && ! wp_checkdate( $qv['monthnum'], $qv['day'], $qv['year'], $date ) ) {
       
  1533 						$qv['error'] = '404';
       
  1534 					} else {
       
  1535 						$this->is_day = true;
       
  1536 						$this->is_date = true;
       
  1537 					}
       
  1538 				}
       
  1539 			}
       
  1540 
       
  1541 			if ( $qv['monthnum'] ) {
       
  1542 				if ( ! $this->is_date ) {
       
  1543 					if ( 12 < $qv['monthnum'] ) {
       
  1544 						$qv['error'] = '404';
       
  1545 					} else {
       
  1546 						$this->is_month = true;
       
  1547 						$this->is_date = true;
       
  1548 					}
       
  1549 				}
       
  1550 			}
       
  1551 
       
  1552 			if ( $qv['year'] ) {
       
  1553 				if ( ! $this->is_date ) {
       
  1554 					$this->is_year = true;
       
  1555 					$this->is_date = true;
       
  1556 				}
       
  1557 			}
       
  1558 
       
  1559 			if ( $qv['m'] ) {
       
  1560 				$this->is_date = true;
       
  1561 				if ( strlen($qv['m']) > 9 ) {
       
  1562 					$this->is_time = true;
       
  1563 				} else if ( strlen($qv['m']) > 7 ) {
       
  1564 					$this->is_day = true;
       
  1565 				} else if ( strlen($qv['m']) > 5 ) {
       
  1566 					$this->is_month = true;
       
  1567 				} else {
       
  1568 					$this->is_year = true;
       
  1569 				}
       
  1570 			}
       
  1571 
       
  1572 			if ( '' != $qv['w'] ) {
       
  1573 				$this->is_date = true;
       
  1574 			}
       
  1575 
       
  1576 			$this->query_vars_hash = false;
       
  1577 			$this->parse_tax_query( $qv );
       
  1578 
       
  1579 			foreach ( $this->tax_query->queries as $tax_query ) {
       
  1580 				if ( 'NOT IN' != $tax_query['operator'] ) {
       
  1581 					switch ( $tax_query['taxonomy'] ) {
       
  1582 						case 'category':
       
  1583 							$this->is_category = true;
       
  1584 							break;
       
  1585 						case 'post_tag':
       
  1586 							$this->is_tag = true;
       
  1587 							break;
       
  1588 						default:
       
  1589 							$this->is_tax = true;
       
  1590 					}
       
  1591 				}
       
  1592 			}
       
  1593 			unset( $tax_query );
       
  1594 
       
  1595 			if ( empty($qv['author']) || ($qv['author'] == '0') ) {
       
  1596 				$this->is_author = false;
       
  1597 			} else {
       
  1598 				$this->is_author = true;
       
  1599 			}
       
  1600 
       
  1601 			if ( '' != $qv['author_name'] )
       
  1602 				$this->is_author = true;
       
  1603 
       
  1604 			if ( !empty( $qv['post_type'] ) && ! is_array( $qv['post_type'] ) ) {
       
  1605 				$post_type_obj = get_post_type_object( $qv['post_type'] );
       
  1606 				if ( ! empty( $post_type_obj->has_archive ) )
       
  1607 					$this->is_post_type_archive = true;
       
  1608 			}
       
  1609 
       
  1610 			if ( $this->is_post_type_archive || $this->is_date || $this->is_author || $this->is_category || $this->is_tag || $this->is_tax )
       
  1611 				$this->is_archive = true;
       
  1612 		}
       
  1613 
       
  1614 		if ( '' != $qv['feed'] )
       
  1615 			$this->is_feed = true;
       
  1616 
       
  1617 		if ( '' != $qv['tb'] )
       
  1618 			$this->is_trackback = true;
       
  1619 
       
  1620 		if ( '' != $qv['paged'] && ( intval($qv['paged']) > 1 ) )
       
  1621 			$this->is_paged = true;
       
  1622 
       
  1623 		if ( '' != $qv['comments_popup'] )
       
  1624 			$this->is_comments_popup = true;
       
  1625 
       
  1626 		// if we're previewing inside the write screen
       
  1627 		if ( '' != $qv['preview'] )
       
  1628 			$this->is_preview = true;
       
  1629 
       
  1630 		if ( is_admin() )
       
  1631 			$this->is_admin = true;
       
  1632 
       
  1633 		if ( false !== strpos($qv['feed'], 'comments-') ) {
       
  1634 			$qv['feed'] = str_replace('comments-', '', $qv['feed']);
       
  1635 			$qv['withcomments'] = 1;
       
  1636 		}
       
  1637 
       
  1638 		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
       
  1639 
       
  1640 		if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )
       
  1641 			$this->is_comment_feed = true;
       
  1642 
       
  1643 		if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup || $this->is_robots ) )
       
  1644 			$this->is_home = true;
       
  1645 
       
  1646 		// Correct is_* for page_on_front and page_for_posts
       
  1647 		if ( $this->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {
       
  1648 			$_query = wp_parse_args($this->query);
       
  1649 			// pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.
       
  1650 			if ( isset($_query['pagename']) && '' == $_query['pagename'] )
       
  1651 				unset($_query['pagename']);
       
  1652 			if ( empty($_query) || !array_diff( array_keys($_query), array('preview', 'page', 'paged', 'cpage') ) ) {
       
  1653 				$this->is_page = true;
       
  1654 				$this->is_home = false;
       
  1655 				$qv['page_id'] = get_option('page_on_front');
       
  1656 				// Correct <!--nextpage--> for page_on_front
       
  1657 				if ( !empty($qv['paged']) ) {
       
  1658 					$qv['page'] = $qv['paged'];
       
  1659 					unset($qv['paged']);
       
  1660 				}
       
  1661 			}
       
  1662 		}
       
  1663 
       
  1664 		if ( '' != $qv['pagename'] ) {
       
  1665 			$this->queried_object = get_page_by_path($qv['pagename']);
       
  1666 			if ( !empty($this->queried_object) )
       
  1667 				$this->queried_object_id = (int) $this->queried_object->ID;
       
  1668 			else
       
  1669 				unset($this->queried_object);
       
  1670 
       
  1671 			if  ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {
       
  1672 				$this->is_page = false;
       
  1673 				$this->is_home = true;
       
  1674 				$this->is_posts_page = true;
       
  1675 			}
       
  1676 		}
       
  1677 
       
  1678 		if ( $qv['page_id'] ) {
       
  1679 			if  ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {
       
  1680 				$this->is_page = false;
       
  1681 				$this->is_home = true;
       
  1682 				$this->is_posts_page = true;
       
  1683 			}
       
  1684 		}
       
  1685 
       
  1686 		if ( !empty($qv['post_type']) ) {
       
  1687 			if ( is_array($qv['post_type']) )
       
  1688 				$qv['post_type'] = array_map('sanitize_key', $qv['post_type']);
       
  1689 			else
       
  1690 				$qv['post_type'] = sanitize_key($qv['post_type']);
       
  1691 		}
       
  1692 
       
  1693 		if ( ! empty( $qv['post_status'] ) ) {
       
  1694 			if ( is_array( $qv['post_status'] ) )
       
  1695 				$qv['post_status'] = array_map('sanitize_key', $qv['post_status']);
       
  1696 			else
       
  1697 				$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
       
  1698 		}
       
  1699 
       
  1700 		if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )
       
  1701 			$this->is_comment_feed = false;
       
  1702 
       
  1703 		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
       
  1704 		// Done correcting is_* for page_on_front and page_for_posts
       
  1705 
       
  1706 		if ( '404' == $qv['error'] )
       
  1707 			$this->set_404();
       
  1708 
       
  1709 		$this->query_vars_hash = md5( serialize( $this->query_vars ) );
       
  1710 		$this->query_vars_changed = false;
       
  1711 
       
  1712 		do_action_ref_array('parse_query', array(&$this));
       
  1713 	}
       
  1714 
       
  1715 	/*
       
  1716 	 * Parses various taxonomy related query vars.
       
  1717 	 *
       
  1718 	 * @access protected
       
  1719 	 * @since 3.1.0
       
  1720 	 *
       
  1721 	 * @param array &$q The query variables
       
  1722 	 */
       
  1723 	function parse_tax_query( &$q ) {
       
  1724 		if ( ! empty( $q['tax_query'] ) && is_array( $q['tax_query'] ) ) {
       
  1725 			$tax_query = $q['tax_query'];
       
  1726 		} else {
       
  1727 			$tax_query = array();
       
  1728 		}
       
  1729 
       
  1730 		if ( !empty($q['taxonomy']) && !empty($q['term']) ) {
       
  1731 			$tax_query[] = array(
       
  1732 				'taxonomy' => $q['taxonomy'],
       
  1733 				'terms' => array( $q['term'] ),
       
  1734 				'field' => 'slug',
       
  1735 			);
       
  1736 		}
       
  1737 
       
  1738 		foreach ( get_taxonomies( array() , 'objects' ) as $taxonomy => $t ) {
       
  1739 			if ( 'post_tag' == $taxonomy )
       
  1740 				continue;	// Handled further down in the $q['tag'] block
       
  1741 
       
  1742 			if ( $t->query_var && !empty( $q[$t->query_var] ) ) {
       
  1743 				$tax_query_defaults = array(
       
  1744 					'taxonomy' => $taxonomy,
       
  1745 					'field' => 'slug',
       
  1746 				);
       
  1747 
       
  1748  				if ( isset( $t->rewrite['hierarchical'] ) && $t->rewrite['hierarchical'] ) {
       
  1749 					$q[$t->query_var] = wp_basename( $q[$t->query_var] );
       
  1750 				}
       
  1751 
       
  1752 				$term = $q[$t->query_var];
       
  1753 
       
  1754 				if ( strpos($term, '+') !== false ) {
       
  1755 					$terms = preg_split( '/[+]+/', $term );
       
  1756 					foreach ( $terms as $term ) {
       
  1757 						$tax_query[] = array_merge( $tax_query_defaults, array(
       
  1758 							'terms' => array( $term )
       
  1759 						) );
       
  1760 					}
       
  1761 				} else {
       
  1762 					$tax_query[] = array_merge( $tax_query_defaults, array(
       
  1763 						'terms' => preg_split( '/[,]+/', $term )
       
  1764 					) );
       
  1765 				}
       
  1766 			}
       
  1767 		}
       
  1768 
       
  1769 		// Category stuff
       
  1770 		if ( !empty($q['cat']) && '0' != $q['cat'] && !$this->is_singular && $this->query_vars_changed ) {
       
  1771 			$q['cat'] = ''.urldecode($q['cat']).'';
       
  1772 			$q['cat'] = addslashes_gpc($q['cat']);
       
  1773 			$cat_array = preg_split('/[,\s]+/', $q['cat']);
       
  1774 			$q['cat'] = '';
       
  1775 			$req_cats = array();
       
  1776 			foreach ( (array) $cat_array as $cat ) {
       
  1777 				$cat = intval($cat);
       
  1778 				$req_cats[] = $cat;
       
  1779 				$in = ($cat > 0);
       
  1780 				$cat = abs($cat);
       
  1781 				if ( $in ) {
       
  1782 					$q['category__in'][] = $cat;
       
  1783 					$q['category__in'] = array_merge( $q['category__in'], get_term_children($cat, 'category') );
       
  1784 				} else {
       
  1785 					$q['category__not_in'][] = $cat;
       
  1786 					$q['category__not_in'] = array_merge( $q['category__not_in'], get_term_children($cat, 'category') );
       
  1787 				}
       
  1788 			}
       
  1789 			$q['cat'] = implode(',', $req_cats);
       
  1790 		}
       
  1791 
       
  1792 		if ( ! empty( $q['category__and'] ) && 1 === count( (array) $q['category__and'] ) ) {
       
  1793 			$q['category__and'] = (array) $q['category__and'];
       
  1794 			if ( ! isset( $q['category__in'] ) )
       
  1795 				$q['category__in'] = array();
       
  1796 			$q['category__in'][] = absint( reset( $q['category__and'] ) );
       
  1797 			unset( $q['category__and'] );
       
  1798 		}
       
  1799 
       
  1800 		if ( ! empty( $q['category__in'] ) ) {
       
  1801 			$q['category__in'] = array_map( 'absint', array_unique( (array) $q['category__in'] ) );
       
  1802 			$tax_query[] = array(
       
  1803 				'taxonomy' => 'category',
       
  1804 				'terms' => $q['category__in'],
       
  1805 				'field' => 'term_id',
       
  1806 				'include_children' => false
       
  1807 			);
       
  1808 		}
       
  1809 
       
  1810 		if ( ! empty($q['category__not_in']) ) {
       
  1811 			$q['category__not_in'] = array_map( 'absint', array_unique( (array) $q['category__not_in'] ) );
       
  1812 			$tax_query[] = array(
       
  1813 				'taxonomy' => 'category',
       
  1814 				'terms' => $q['category__not_in'],
       
  1815 				'operator' => 'NOT IN',
       
  1816 				'include_children' => false
       
  1817 			);
       
  1818 		}
       
  1819 
       
  1820 		if ( ! empty($q['category__and']) ) {
       
  1821 			$q['category__and'] = array_map( 'absint', array_unique( (array) $q['category__and'] ) );
       
  1822 			$tax_query[] = array(
       
  1823 				'taxonomy' => 'category',
       
  1824 				'terms' => $q['category__and'],
       
  1825 				'field' => 'term_id',
       
  1826 				'operator' => 'AND',
       
  1827 				'include_children' => false
       
  1828 			);
       
  1829 		}
       
  1830 
       
  1831 		// Tag stuff
       
  1832 		if ( '' != $q['tag'] && !$this->is_singular && $this->query_vars_changed ) {
       
  1833 			if ( strpos($q['tag'], ',') !== false ) {
       
  1834 				$tags = preg_split('/[,\r\n\t ]+/', $q['tag']);
       
  1835 				foreach ( (array) $tags as $tag ) {
       
  1836 					$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
       
  1837 					$q['tag_slug__in'][] = $tag;
       
  1838 				}
       
  1839 			} else if ( preg_match('/[+\r\n\t ]+/', $q['tag']) || !empty($q['cat']) ) {
       
  1840 				$tags = preg_split('/[+\r\n\t ]+/', $q['tag']);
       
  1841 				foreach ( (array) $tags as $tag ) {
       
  1842 					$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');
       
  1843 					$q['tag_slug__and'][] = $tag;
       
  1844 				}
       
  1845 			} else {
       
  1846 				$q['tag'] = sanitize_term_field('slug', $q['tag'], 0, 'post_tag', 'db');
       
  1847 				$q['tag_slug__in'][] = $q['tag'];
       
  1848 			}
       
  1849 		}
       
  1850 
       
  1851 		if ( !empty($q['tag_id']) ) {
       
  1852 			$q['tag_id'] = absint( $q['tag_id'] );
       
  1853 			$tax_query[] = array(
       
  1854 				'taxonomy' => 'post_tag',
       
  1855 				'terms' => $q['tag_id']
       
  1856 			);
       
  1857 		}
       
  1858 
       
  1859 		if ( !empty($q['tag__in']) ) {
       
  1860 			$q['tag__in'] = array_map('absint', array_unique( (array) $q['tag__in'] ) );
       
  1861 			$tax_query[] = array(
       
  1862 				'taxonomy' => 'post_tag',
       
  1863 				'terms' => $q['tag__in']
       
  1864 			);
       
  1865 		}
       
  1866 
       
  1867 		if ( !empty($q['tag__not_in']) ) {
       
  1868 			$q['tag__not_in'] = array_map('absint', array_unique( (array) $q['tag__not_in'] ) );
       
  1869 			$tax_query[] = array(
       
  1870 				'taxonomy' => 'post_tag',
       
  1871 				'terms' => $q['tag__not_in'],
       
  1872 				'operator' => 'NOT IN'
       
  1873 			);
       
  1874 		}
       
  1875 
       
  1876 		if ( !empty($q['tag__and']) ) {
       
  1877 			$q['tag__and'] = array_map('absint', array_unique( (array) $q['tag__and'] ) );
       
  1878 			$tax_query[] = array(
       
  1879 				'taxonomy' => 'post_tag',
       
  1880 				'terms' => $q['tag__and'],
       
  1881 				'operator' => 'AND'
       
  1882 			);
       
  1883 		}
       
  1884 
       
  1885 		if ( !empty($q['tag_slug__in']) ) {
       
  1886 			$q['tag_slug__in'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__in'] ) );
       
  1887 			$tax_query[] = array(
       
  1888 				'taxonomy' => 'post_tag',
       
  1889 				'terms' => $q['tag_slug__in'],
       
  1890 				'field' => 'slug'
       
  1891 			);
       
  1892 		}
       
  1893 
       
  1894 		if ( !empty($q['tag_slug__and']) ) {
       
  1895 			$q['tag_slug__and'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__and'] ) );
       
  1896 			$tax_query[] = array(
       
  1897 				'taxonomy' => 'post_tag',
       
  1898 				'terms' => $q['tag_slug__and'],
       
  1899 				'field' => 'slug',
       
  1900 				'operator' => 'AND'
       
  1901 			);
       
  1902 		}
       
  1903 
       
  1904 		$this->tax_query = new WP_Tax_Query( $tax_query );
       
  1905 
       
  1906 		do_action( 'parse_tax_query', $this );
       
  1907 	}
       
  1908 
       
  1909 	/**
       
  1910 	 * Generate SQL for the WHERE clause based on passed search terms.
       
  1911 	 *
       
  1912 	 * @since 3.7.0
       
  1913 	 *
       
  1914 	 * @global type $wpdb
       
  1915 	 * @param array $q Query variables.
       
  1916 	 */
       
  1917 	protected function parse_search( &$q ) {
       
  1918 		global $wpdb;
       
  1919 
       
  1920 		$search = '';
       
  1921 
       
  1922 		// added slashes screw with quote grouping when done early, so done later
       
  1923 		$q['s'] = stripslashes( $q['s'] );
       
  1924 		if ( empty( $_GET['s'] ) && $this->is_main_query() )
       
  1925 			$q['s'] = urldecode( $q['s'] );
       
  1926 		// there are no line breaks in <input /> fields
       
  1927 		$q['s'] = str_replace( array( "\r", "\n" ), '', $q['s'] );
       
  1928 		$q['search_terms_count'] = 1;
       
  1929 		if ( ! empty( $q['sentence'] ) ) {
       
  1930 			$q['search_terms'] = array( $q['s'] );
       
  1931 		} else {
       
  1932 			if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', $q['s'], $matches ) ) {
       
  1933 				$q['search_terms_count'] = count( $matches[0] );
       
  1934 				$q['search_terms'] = $this->parse_search_terms( $matches[0] );
       
  1935 				// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence
       
  1936 				if ( empty( $q['search_terms'] ) || count( $q['search_terms'] ) > 9 )
       
  1937 					$q['search_terms'] = array( $q['s'] );
       
  1938 			} else {
       
  1939 				$q['search_terms'] = array( $q['s'] );
       
  1940 			}
       
  1941 		}
       
  1942 
       
  1943 		$n = ! empty( $q['exact'] ) ? '' : '%';
       
  1944 		$searchand = '';
       
  1945 		$q['search_orderby_title'] = array();
       
  1946 		foreach ( $q['search_terms'] as $term ) {
       
  1947 			$term = like_escape( esc_sql( $term ) );
       
  1948 			if ( $n )
       
  1949 				$q['search_orderby_title'][] = "$wpdb->posts.post_title LIKE '%$term%'";
       
  1950 
       
  1951 			$search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
       
  1952 			$searchand = ' AND ';
       
  1953 		}
       
  1954 
       
  1955 		if ( ! empty( $search ) ) {
       
  1956 			$search = " AND ({$search}) ";
       
  1957 			if ( ! is_user_logged_in() )
       
  1958 				$search .= " AND ($wpdb->posts.post_password = '') ";
       
  1959 		}
       
  1960 
       
  1961 		return $search;
       
  1962 	}
       
  1963 
       
  1964 	/**
       
  1965 	 * Check if the terms are suitable for searching.
       
  1966 	 *
       
  1967 	 * Uses an array of stopwords (terms) that are excluded from the separate
       
  1968 	 * term matching when searching for posts. The list of English stopwords is
       
  1969 	 * the approximate search engines list, and is translatable.
       
  1970 	 *
       
  1971 	 * @since 3.7.0
       
  1972 	 *
       
  1973 	 * @param array Terms to check.
       
  1974 	 * @return array Terms that are not stopwords.
       
  1975 	 */
       
  1976 	protected function parse_search_terms( $terms ) {
       
  1977 		$strtolower = function_exists( 'mb_strtolower' ) ? 'mb_strtolower' : 'strtolower';
       
  1978 		$checked = array();
       
  1979 
       
  1980 		$stopwords = $this->get_search_stopwords();
       
  1981 
       
  1982 		foreach ( $terms as $term ) {
       
  1983 			// keep before/after spaces when term is for exact match
       
  1984 			if ( preg_match( '/^".+"$/', $term ) )
       
  1985 				$term = trim( $term, "\"'" );
       
  1986 			else
       
  1987 				$term = trim( $term, "\"' " );
       
  1988 
       
  1989 			// Avoid single A-Z.
       
  1990 			if ( ! $term || ( 1 === strlen( $term ) && preg_match( '/^[a-z]$/i', $term ) ) )
       
  1991 				continue;
       
  1992 
       
  1993 			if ( in_array( call_user_func( $strtolower, $term ), $stopwords, true ) )
       
  1994 				continue;
       
  1995 
       
  1996 			$checked[] = $term;
       
  1997 		}
       
  1998 
       
  1999 		return $checked;
       
  2000 	}
       
  2001 
       
  2002 	/**
       
  2003 	 * Retrieve stopwords used when parsing search terms.
       
  2004 	 *
       
  2005 	 * @since 3.7.0
       
  2006 	 *
       
  2007 	 * @return array Stopwords.
       
  2008 	 */
       
  2009 	protected function get_search_stopwords() {
       
  2010 		if ( isset( $this->stopwords ) )
       
  2011 			return $this->stopwords;
       
  2012 
       
  2013 		/* translators: This is a comma-separated list of very common words that should be excluded from a search,
       
  2014 		 * like a, an, and the. These are usually called "stopwords". You should not simply translate these individual
       
  2015 		 * words into your language. Instead, look for and provide commonly accepted stopwords in your language.
       
  2016 		 */
       
  2017 		$words = explode( ',', _x( 'about,an,are,as,at,be,by,com,for,from,how,in,is,it,of,on,or,that,the,this,to,was,what,when,where,who,will,with,www',
       
  2018 			'Comma-separated list of search stopwords in your language' ) );
       
  2019 
       
  2020 		foreach( $words as $word ) {
       
  2021 			$word = trim( $word, "\r\n\t " );
       
  2022 			if ( $word )
       
  2023 				$stopwords[] = $word;
       
  2024 		}
       
  2025 
       
  2026 		/**
       
  2027 		 * Filter stopwords used when parsing search terms.
       
  2028 		 *
       
  2029 		 * @since 3.7.0
       
  2030 		 *
       
  2031 		 * @param array $stopwords Stopwords.
       
  2032 		 */
       
  2033 		$this->stopwords = apply_filters( 'wp_search_stopwords', $stopwords );
       
  2034 		return $this->stopwords;
       
  2035 	}
       
  2036 
       
  2037 	/**
       
  2038 	 * Generate SQL for the ORDER BY condition based on passed search terms.
       
  2039 	 *
       
  2040 	 * @global wpdb $wpdb
       
  2041 	 * @param array $q Query variables.
       
  2042 	 * @return string ORDER BY clause.
       
  2043 	 */
       
  2044 	protected function parse_search_order( &$q ) {
       
  2045 		global $wpdb;
       
  2046 
       
  2047 		$search_orderby = '';
       
  2048 
       
  2049 		if ( $q['search_terms_count'] > 1 ) {
       
  2050 			$num_terms = count( $q['search_orderby_title'] );
       
  2051 			$search_orderby_s = like_escape( esc_sql( $q['s'] ) );
       
  2052 
       
  2053 			$search_orderby = '(CASE ';
       
  2054 			// sentence match in 'post_title'
       
  2055 			$search_orderby .= "WHEN $wpdb->posts.post_title LIKE '%{$search_orderby_s}%' THEN 1 ";
       
  2056 
       
  2057 			// sanity limit, sort as sentence when more than 6 terms
       
  2058 			// (few searches are longer than 6 terms and most titles are not)
       
  2059 			if ( $num_terms < 7 ) {
       
  2060 				// all words in title
       
  2061 				$search_orderby .= 'WHEN ' . implode( ' AND ', $q['search_orderby_title'] ) . ' THEN 2 ';
       
  2062 				// any word in title, not needed when $num_terms == 1
       
  2063 				if ( $num_terms > 1 )
       
  2064 					$search_orderby .= 'WHEN ' . implode( ' OR ', $q['search_orderby_title'] ) . ' THEN 3 ';
       
  2065 			}
       
  2066 
       
  2067 			// sentence match in 'post_content'
       
  2068 			$search_orderby .= "WHEN $wpdb->posts.post_content LIKE '%{$search_orderby_s}%' THEN 4 ";
       
  2069 			$search_orderby .= 'ELSE 5 END)';
       
  2070 		} else {
       
  2071 			// single word or sentence search
       
  2072 			$search_orderby = reset( $q['search_orderby_title'] ) . ' DESC';
       
  2073 		}
       
  2074 
       
  2075 		return $search_orderby;
       
  2076 	}
       
  2077 
       
  2078 	/**
       
  2079 	 * Sets the 404 property and saves whether query is feed.
       
  2080 	 *
       
  2081 	 * @since 2.0.0
       
  2082 	 * @access public
       
  2083 	 */
       
  2084 	function set_404() {
       
  2085 		$is_feed = $this->is_feed;
       
  2086 
       
  2087 		$this->init_query_flags();
       
  2088 		$this->is_404 = true;
       
  2089 
       
  2090 		$this->is_feed = $is_feed;
       
  2091 	}
       
  2092 
       
  2093 	/**
       
  2094 	 * Retrieve query variable.
       
  2095 	 *
       
  2096 	 * @since 1.5.0
       
  2097 	 * @access public
       
  2098 	 *
       
  2099 	 * @param string $query_var Query variable key.
       
  2100 	 * @return mixed
       
  2101 	 */
       
  2102 	function get($query_var) {
       
  2103 		if ( isset($this->query_vars[$query_var]) )
       
  2104 			return $this->query_vars[$query_var];
       
  2105 
       
  2106 		return '';
       
  2107 	}
       
  2108 
       
  2109 	/**
       
  2110 	 * Set query variable.
       
  2111 	 *
       
  2112 	 * @since 1.5.0
       
  2113 	 * @access public
       
  2114 	 *
       
  2115 	 * @param string $query_var Query variable key.
       
  2116 	 * @param mixed $value Query variable value.
       
  2117 	 */
       
  2118 	function set($query_var, $value) {
       
  2119 		$this->query_vars[$query_var] = $value;
       
  2120 	}
       
  2121 
       
  2122 	/**
       
  2123 	 * Retrieve the posts based on query variables.
       
  2124 	 *
       
  2125 	 * There are a few filters and actions that can be used to modify the post
       
  2126 	 * database query.
       
  2127 	 *
       
  2128 	 * @since 1.5.0
       
  2129 	 * @access public
       
  2130 	 * @uses do_action_ref_array() Calls 'pre_get_posts' hook before retrieving posts.
       
  2131 	 *
       
  2132 	 * @return array List of posts.
       
  2133 	 */
       
  2134 	function get_posts() {
       
  2135 		global $wpdb;
       
  2136 
       
  2137 		$this->parse_query();
       
  2138 
       
  2139 		do_action_ref_array('pre_get_posts', array(&$this));
       
  2140 
       
  2141 		// Shorthand.
       
  2142 		$q = &$this->query_vars;
       
  2143 
       
  2144 		// Fill again in case pre_get_posts unset some vars.
       
  2145 		$q = $this->fill_query_vars($q);
       
  2146 
       
  2147 		// Parse meta query
       
  2148 		$this->meta_query = new WP_Meta_Query();
       
  2149 		$this->meta_query->parse_query_vars( $q );
       
  2150 
       
  2151 		// Set a flag if a pre_get_posts hook changed the query vars.
       
  2152 		$hash = md5( serialize( $this->query_vars ) );
       
  2153 		if ( $hash != $this->query_vars_hash ) {
       
  2154 			$this->query_vars_changed = true;
       
  2155 			$this->query_vars_hash = $hash;
       
  2156 		}
       
  2157 		unset($hash);
       
  2158 
       
  2159 		// First let's clear some variables
       
  2160 		$distinct = '';
       
  2161 		$whichauthor = '';
       
  2162 		$whichmimetype = '';
       
  2163 		$where = '';
       
  2164 		$limits = '';
       
  2165 		$join = '';
       
  2166 		$search = '';
       
  2167 		$groupby = '';
       
  2168 		$fields = '';
       
  2169 		$post_status_join = false;
       
  2170 		$page = 1;
       
  2171 
       
  2172 		if ( isset( $q['caller_get_posts'] ) ) {
       
  2173 			_deprecated_argument( 'WP_Query', '3.1', __( '"caller_get_posts" is deprecated. Use "ignore_sticky_posts" instead.' ) );
       
  2174 			if ( !isset( $q['ignore_sticky_posts'] ) )
       
  2175 				$q['ignore_sticky_posts'] = $q['caller_get_posts'];
       
  2176 		}
       
  2177 
       
  2178 		if ( !isset( $q['ignore_sticky_posts'] ) )
       
  2179 			$q['ignore_sticky_posts'] = false;
       
  2180 
       
  2181 		if ( !isset($q['suppress_filters']) )
       
  2182 			$q['suppress_filters'] = false;
       
  2183 
       
  2184 		if ( !isset($q['cache_results']) ) {
       
  2185 			if ( wp_using_ext_object_cache() )
       
  2186 				$q['cache_results'] = false;
       
  2187 			else
       
  2188 				$q['cache_results'] = true;
       
  2189 		}
       
  2190 
       
  2191 		if ( !isset($q['update_post_term_cache']) )
       
  2192 			$q['update_post_term_cache'] = true;
       
  2193 
       
  2194 		if ( !isset($q['update_post_meta_cache']) )
       
  2195 			$q['update_post_meta_cache'] = true;
       
  2196 
       
  2197 		if ( !isset($q['post_type']) ) {
       
  2198 			if ( $this->is_search )
       
  2199 				$q['post_type'] = 'any';
       
  2200 			else
       
  2201 				$q['post_type'] = '';
       
  2202 		}
       
  2203 		$post_type = $q['post_type'];
       
  2204 		if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
       
  2205 			$q['posts_per_page'] = get_option('posts_per_page');
       
  2206 		if ( isset($q['showposts']) && $q['showposts'] ) {
       
  2207 			$q['showposts'] = (int) $q['showposts'];
       
  2208 			$q['posts_per_page'] = $q['showposts'];
       
  2209 		}
       
  2210 		if ( (isset($q['posts_per_archive_page']) && $q['posts_per_archive_page'] != 0) && ($this->is_archive || $this->is_search) )
       
  2211 			$q['posts_per_page'] = $q['posts_per_archive_page'];
       
  2212 		if ( !isset($q['nopaging']) ) {
       
  2213 			if ( $q['posts_per_page'] == -1 ) {
       
  2214 				$q['nopaging'] = true;
       
  2215 			} else {
       
  2216 				$q['nopaging'] = false;
       
  2217 			}
       
  2218 		}
       
  2219 		if ( $this->is_feed ) {
       
  2220 			$q['posts_per_page'] = get_option('posts_per_rss');
       
  2221 			$q['nopaging'] = false;
       
  2222 		}
       
  2223 		$q['posts_per_page'] = (int) $q['posts_per_page'];
       
  2224 		if ( $q['posts_per_page'] < -1 )
       
  2225 			$q['posts_per_page'] = abs($q['posts_per_page']);
       
  2226 		else if ( $q['posts_per_page'] == 0 )
       
  2227 			$q['posts_per_page'] = 1;
       
  2228 
       
  2229 		if ( !isset($q['comments_per_page']) || $q['comments_per_page'] == 0 )
       
  2230 			$q['comments_per_page'] = get_option('comments_per_page');
       
  2231 
       
  2232 		if ( $this->is_home && (empty($this->query) || $q['preview'] == 'true') && ( 'page' == get_option('show_on_front') ) && get_option('page_on_front') ) {
       
  2233 			$this->is_page = true;
       
  2234 			$this->is_home = false;
       
  2235 			$q['page_id'] = get_option('page_on_front');
       
  2236 		}
       
  2237 
       
  2238 		if ( isset($q['page']) ) {
       
  2239 			$q['page'] = trim($q['page'], '/');
       
  2240 			$q['page'] = absint($q['page']);
       
  2241 		}
       
  2242 
       
  2243 		// If true, forcibly turns off SQL_CALC_FOUND_ROWS even when limits are present.
       
  2244 		if ( isset($q['no_found_rows']) )
       
  2245 			$q['no_found_rows'] = (bool) $q['no_found_rows'];
       
  2246 		else
       
  2247 			$q['no_found_rows'] = false;
       
  2248 
       
  2249 		switch ( $q['fields'] ) {
       
  2250 			case 'ids':
       
  2251 				$fields = "$wpdb->posts.ID";
       
  2252 				break;
       
  2253 			case 'id=>parent':
       
  2254 				$fields = "$wpdb->posts.ID, $wpdb->posts.post_parent";
       
  2255 				break;
       
  2256 			default:
       
  2257 				$fields = "$wpdb->posts.*";
       
  2258 		}
       
  2259 
       
  2260 		if ( '' !== $q['menu_order'] )
       
  2261 			$where .= " AND $wpdb->posts.menu_order = " . $q['menu_order'];
       
  2262 
       
  2263 		// The "m" parameter is meant for months but accepts datetimes of varying specificity
       
  2264 		if ( $q['m'] ) {
       
  2265 			$where .= " AND YEAR($wpdb->posts.post_date)=" . substr($q['m'], 0, 4);
       
  2266 			if ( strlen($q['m']) > 5 )
       
  2267 				$where .= " AND MONTH($wpdb->posts.post_date)=" . substr($q['m'], 4, 2);
       
  2268 			if ( strlen($q['m']) > 7 )
       
  2269 				$where .= " AND DAYOFMONTH($wpdb->posts.post_date)=" . substr($q['m'], 6, 2);
       
  2270 			if ( strlen($q['m']) > 9 )
       
  2271 				$where .= " AND HOUR($wpdb->posts.post_date)=" . substr($q['m'], 8, 2);
       
  2272 			if ( strlen($q['m']) > 11 )
       
  2273 				$where .= " AND MINUTE($wpdb->posts.post_date)=" . substr($q['m'], 10, 2);
       
  2274 			if ( strlen($q['m']) > 13 )
       
  2275 				$where .= " AND SECOND($wpdb->posts.post_date)=" . substr($q['m'], 12, 2);
       
  2276 		}
       
  2277 
       
  2278 		// Handle the other individual date parameters
       
  2279 		$date_parameters = array();
       
  2280 
       
  2281 		if ( '' !== $q['hour'] )
       
  2282 			$date_parameters['hour'] = $q['hour'];
       
  2283 
       
  2284 		if ( '' !== $q['minute'] )
       
  2285 			$date_parameters['minute'] = $q['minute'];
       
  2286 
       
  2287 		if ( '' !== $q['second'] )
       
  2288 			$date_parameters['second'] = $q['second'];
       
  2289 
       
  2290 		if ( $q['year'] )
       
  2291 			$date_parameters['year'] = $q['year'];
       
  2292 
       
  2293 		if ( $q['monthnum'] )
       
  2294 			$date_parameters['monthnum'] = $q['monthnum'];
       
  2295 
       
  2296 		if ( $q['w'] )
       
  2297 			$date_parameters['week'] = $q['w'];
       
  2298 
       
  2299 		if ( $q['day'] )
       
  2300 			$date_parameters['day'] = $q['day'];
       
  2301 
       
  2302 		if ( $date_parameters ) {
       
  2303 			$date_query = new WP_Date_Query( array( $date_parameters ) );
       
  2304 			$where .= $date_query->get_sql();
       
  2305 		}
       
  2306 		unset( $date_parameters, $date_query );
       
  2307 
       
  2308 		// Handle complex date queries
       
  2309 		if ( ! empty( $q['date_query'] ) ) {
       
  2310 			$this->date_query = new WP_Date_Query( $q['date_query'] );
       
  2311 			$where .= $this->date_query->get_sql();
       
  2312 		}
       
  2313 
       
  2314 
       
  2315 		// If we've got a post_type AND it's not "any" post_type.
       
  2316 		if ( !empty($q['post_type']) && 'any' != $q['post_type'] ) {
       
  2317 			foreach ( (array)$q['post_type'] as $_post_type ) {
       
  2318 				$ptype_obj = get_post_type_object($_post_type);
       
  2319 				if ( !$ptype_obj || !$ptype_obj->query_var || empty($q[ $ptype_obj->query_var ]) )
       
  2320 					continue;
       
  2321 
       
  2322 				if ( ! $ptype_obj->hierarchical || strpos($q[ $ptype_obj->query_var ], '/') === false ) {
       
  2323 					// Non-hierarchical post_types & parent-level-hierarchical post_types can directly use 'name'
       
  2324 					$q['name'] = $q[ $ptype_obj->query_var ];
       
  2325 				} else {
       
  2326 					// Hierarchical post_types will operate through the
       
  2327 					$q['pagename'] = $q[ $ptype_obj->query_var ];
       
  2328 					$q['name'] = '';
       
  2329 				}
       
  2330 
       
  2331 				// Only one request for a slug is possible, this is why name & pagename are overwritten above.
       
  2332 				break;
       
  2333 			} //end foreach
       
  2334 			unset($ptype_obj);
       
  2335 		}
       
  2336 
       
  2337 		if ( '' != $q['name'] ) {
       
  2338 			$q['name'] = sanitize_title_for_query( $q['name'] );
       
  2339 			$where .= " AND $wpdb->posts.post_name = '" . $q['name'] . "'";
       
  2340 		} elseif ( '' != $q['pagename'] ) {
       
  2341 			if ( isset($this->queried_object_id) ) {
       
  2342 				$reqpage = $this->queried_object_id;
       
  2343 			} else {
       
  2344 				if ( 'page' != $q['post_type'] ) {
       
  2345 					foreach ( (array)$q['post_type'] as $_post_type ) {
       
  2346 						$ptype_obj = get_post_type_object($_post_type);
       
  2347 						if ( !$ptype_obj || !$ptype_obj->hierarchical )
       
  2348 							continue;
       
  2349 
       
  2350 						$reqpage = get_page_by_path($q['pagename'], OBJECT, $_post_type);
       
  2351 						if ( $reqpage )
       
  2352 							break;
       
  2353 					}
       
  2354 					unset($ptype_obj);
       
  2355 				} else {
       
  2356 					$reqpage = get_page_by_path($q['pagename']);
       
  2357 				}
       
  2358 				if ( !empty($reqpage) )
       
  2359 					$reqpage = $reqpage->ID;
       
  2360 				else
       
  2361 					$reqpage = 0;
       
  2362 			}
       
  2363 
       
  2364 			$page_for_posts = get_option('page_for_posts');
       
  2365 			if  ( ('page' != get_option('show_on_front') ) || empty($page_for_posts) || ( $reqpage != $page_for_posts ) ) {
       
  2366 				$q['pagename'] = sanitize_title_for_query( wp_basename( $q['pagename'] ) );
       
  2367 				$q['name'] = $q['pagename'];
       
  2368 				$where .= " AND ($wpdb->posts.ID = '$reqpage')";
       
  2369 				$reqpage_obj = get_post( $reqpage );
       
  2370 				if ( is_object($reqpage_obj) && 'attachment' == $reqpage_obj->post_type ) {
       
  2371 					$this->is_attachment = true;
       
  2372 					$post_type = $q['post_type'] = 'attachment';
       
  2373 					$this->is_page = true;
       
  2374 					$q['attachment_id'] = $reqpage;
       
  2375 				}
       
  2376 			}
       
  2377 		} elseif ( '' != $q['attachment'] ) {
       
  2378 			$q['attachment'] = sanitize_title_for_query( wp_basename( $q['attachment'] ) );
       
  2379 			$q['name'] = $q['attachment'];
       
  2380 			$where .= " AND $wpdb->posts.post_name = '" . $q['attachment'] . "'";
       
  2381 		}
       
  2382 
       
  2383 
       
  2384 		if ( intval($q['comments_popup']) )
       
  2385 			$q['p'] = absint($q['comments_popup']);
       
  2386 
       
  2387 		// If an attachment is requested by number, let it supersede any post number.
       
  2388 		if ( $q['attachment_id'] )
       
  2389 			$q['p'] = absint($q['attachment_id']);
       
  2390 
       
  2391 		// If a post number is specified, load that post
       
  2392 		if ( $q['p'] ) {
       
  2393 			$where .= " AND {$wpdb->posts}.ID = " . $q['p'];
       
  2394 		} elseif ( $q['post__in'] ) {
       
  2395 			$post__in = implode(',', array_map( 'absint', $q['post__in'] ));
       
  2396 			$where .= " AND {$wpdb->posts}.ID IN ($post__in)";
       
  2397 		} elseif ( $q['post__not_in'] ) {
       
  2398 			$post__not_in = implode(',',  array_map( 'absint', $q['post__not_in'] ));
       
  2399 			$where .= " AND {$wpdb->posts}.ID NOT IN ($post__not_in)";
       
  2400 		}
       
  2401 
       
  2402 		if ( is_numeric( $q['post_parent'] ) ) {
       
  2403 			$where .= $wpdb->prepare( " AND $wpdb->posts.post_parent = %d ", $q['post_parent'] );
       
  2404 		} elseif ( $q['post_parent__in'] ) {
       
  2405 			$post_parent__in = implode( ',', array_map( 'absint', $q['post_parent__in'] ) );
       
  2406 			$where .= " AND {$wpdb->posts}.post_parent IN ($post_parent__in)";
       
  2407 		} elseif ( $q['post_parent__not_in'] ) {
       
  2408 			$post_parent__not_in = implode( ',',  array_map( 'absint', $q['post_parent__not_in'] ) );
       
  2409 			$where .= " AND {$wpdb->posts}.post_parent NOT IN ($post_parent__not_in)";
       
  2410 		}
       
  2411 
       
  2412 		if ( $q['page_id'] ) {
       
  2413 			if  ( ('page' != get_option('show_on_front') ) || ( $q['page_id'] != get_option('page_for_posts') ) ) {
       
  2414 				$q['p'] = $q['page_id'];
       
  2415 				$where = " AND {$wpdb->posts}.ID = " . $q['page_id'];
       
  2416 			}
       
  2417 		}
       
  2418 
       
  2419 		// If a search pattern is specified, load the posts that match.
       
  2420 		if ( ! empty( $q['s'] ) )
       
  2421 			$search = $this->parse_search( $q );
       
  2422 
       
  2423 		/**
       
  2424 		 * Filter the search SQL that is used in the WHERE clause of WP_Query.
       
  2425 		 *
       
  2426 		 * @since 3.0.0
       
  2427 		 *
       
  2428 		 * @param string   $search Search SQL for WHERE clause.
       
  2429 		 * @param WP_Query $this   The current WP_Query object.
       
  2430 		 */
       
  2431 		$search = apply_filters_ref_array( 'posts_search', array( $search, &$this ) );
       
  2432 
       
  2433 		// Taxonomies
       
  2434 		if ( !$this->is_singular ) {
       
  2435 			$this->parse_tax_query( $q );
       
  2436 
       
  2437 			$clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );
       
  2438 
       
  2439 			$join .= $clauses['join'];
       
  2440 			$where .= $clauses['where'];
       
  2441 		}
       
  2442 
       
  2443 		if ( $this->is_tax ) {
       
  2444 			if ( empty($post_type) ) {
       
  2445 				// Do a fully inclusive search for currently registered post types of queried taxonomies
       
  2446 				$post_type = array();
       
  2447 				$taxonomies = wp_list_pluck( $this->tax_query->queries, 'taxonomy' );
       
  2448 				foreach ( get_post_types( array( 'exclude_from_search' => false ) ) as $pt ) {
       
  2449 					$object_taxonomies = $pt === 'attachment' ? get_taxonomies_for_attachments() : get_object_taxonomies( $pt );
       
  2450 					if ( array_intersect( $taxonomies, $object_taxonomies ) )
       
  2451 						$post_type[] = $pt;
       
  2452 				}
       
  2453 				if ( ! $post_type )
       
  2454 					$post_type = 'any';
       
  2455 				elseif ( count( $post_type ) == 1 )
       
  2456 					$post_type = $post_type[0];
       
  2457 
       
  2458 				$post_status_join = true;
       
  2459 			} elseif ( in_array('attachment', (array) $post_type) ) {
       
  2460 				$post_status_join = true;
       
  2461 			}
       
  2462 		}
       
  2463 
       
  2464 		// Back-compat
       
  2465 		if ( !empty($this->tax_query->queries) ) {
       
  2466 			$tax_query_in_and = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'NOT IN' ), 'NOT' );
       
  2467 			if ( !empty( $tax_query_in_and ) ) {
       
  2468 				if ( !isset( $q['taxonomy'] ) ) {
       
  2469 					foreach ( $tax_query_in_and as $a_tax_query ) {
       
  2470 						if ( !in_array( $a_tax_query['taxonomy'], array( 'category', 'post_tag' ) ) ) {
       
  2471 							$q['taxonomy'] = $a_tax_query['taxonomy'];
       
  2472 							if ( 'slug' == $a_tax_query['field'] )
       
  2473 								$q['term'] = $a_tax_query['terms'][0];
       
  2474 							else
       
  2475 								$q['term_id'] = $a_tax_query['terms'][0];
       
  2476 
       
  2477 							break;
       
  2478 						}
       
  2479 					}
       
  2480 				}
       
  2481 
       
  2482 				$cat_query = wp_list_filter( $tax_query_in_and, array( 'taxonomy' => 'category' ) );
       
  2483 				if ( ! empty( $cat_query ) ) {
       
  2484 					$cat_query = reset( $cat_query );
       
  2485 
       
  2486 					if ( ! empty( $cat_query['terms'][0] ) ) {
       
  2487 						$the_cat = get_term_by( $cat_query['field'], $cat_query['terms'][0], 'category' );
       
  2488 						if ( $the_cat ) {
       
  2489 							$this->set( 'cat', $the_cat->term_id );
       
  2490 							$this->set( 'category_name', $the_cat->slug );
       
  2491 						}
       
  2492 						unset( $the_cat );
       
  2493 					}
       
  2494 				}
       
  2495 				unset( $cat_query );
       
  2496 
       
  2497 				$tag_query = wp_list_filter( $tax_query_in_and, array( 'taxonomy' => 'post_tag' ) );
       
  2498 				if ( ! empty( $tag_query ) ) {
       
  2499 					$tag_query = reset( $tag_query );
       
  2500 
       
  2501 					if ( ! empty( $tag_query['terms'][0] ) ) {
       
  2502 						$the_tag = get_term_by( $tag_query['field'], $tag_query['terms'][0], 'post_tag' );
       
  2503 						if ( $the_tag )
       
  2504 							$this->set( 'tag_id', $the_tag->term_id );
       
  2505 						unset( $the_tag );
       
  2506 					}
       
  2507 				}
       
  2508 				unset( $tag_query );
       
  2509 			}
       
  2510 		}
       
  2511 
       
  2512 		if ( !empty( $this->tax_query->queries ) || !empty( $this->meta_query->queries ) ) {
       
  2513 			$groupby = "{$wpdb->posts}.ID";
       
  2514 		}
       
  2515 
       
  2516 		// Author/user stuff
       
  2517 
       
  2518 		if ( ! empty( $q['author'] ) && $q['author'] != '0' ) {
       
  2519 			$q['author'] = addslashes_gpc( '' . urldecode( $q['author'] ) );
       
  2520 			$authors = array_unique( array_map( 'intval', preg_split( '/[,\s]+/', $q['author'] ) ) );
       
  2521 			foreach ( $authors as $author ) {
       
  2522 				$key = $author > 0 ? 'author__in' : 'author__not_in';
       
  2523 				$q[$key][] = abs( $author );
       
  2524 			}
       
  2525 			$q['author'] = implode( ',', $authors );
       
  2526 		}
       
  2527 
       
  2528 		if ( ! empty( $q['author__not_in'] ) ) {
       
  2529 			$author__not_in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__not_in'] ) ) );
       
  2530 			$where .= " AND {$wpdb->posts}.post_author NOT IN ($author__not_in) ";
       
  2531 		} elseif ( ! empty( $q['author__in'] ) ) {
       
  2532 			$author__in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__in'] ) ) );
       
  2533 			$where .= " AND {$wpdb->posts}.post_author IN ($author__in) ";
       
  2534 		}
       
  2535 
       
  2536 		// Author stuff for nice URLs
       
  2537 
       
  2538 		if ( '' != $q['author_name'] ) {
       
  2539 			if ( strpos($q['author_name'], '/') !== false ) {
       
  2540 				$q['author_name'] = explode('/', $q['author_name']);
       
  2541 				if ( $q['author_name'][ count($q['author_name'])-1 ] ) {
       
  2542 					$q['author_name'] = $q['author_name'][count($q['author_name'])-1]; // no trailing slash
       
  2543 				} else {
       
  2544 					$q['author_name'] = $q['author_name'][count($q['author_name'])-2]; // there was a trailing slash
       
  2545 				}
       
  2546 			}
       
  2547 			$q['author_name'] = sanitize_title_for_query( $q['author_name'] );
       
  2548 			$q['author'] = get_user_by('slug', $q['author_name']);
       
  2549 			if ( $q['author'] )
       
  2550 				$q['author'] = $q['author']->ID;
       
  2551 			$whichauthor .= " AND ($wpdb->posts.post_author = " . absint($q['author']) . ')';
       
  2552 		}
       
  2553 
       
  2554 		// MIME-Type stuff for attachment browsing
       
  2555 
       
  2556 		if ( isset( $q['post_mime_type'] ) && '' != $q['post_mime_type'] )
       
  2557 			$whichmimetype = wp_post_mime_type_where( $q['post_mime_type'], $wpdb->posts );
       
  2558 
       
  2559 		$where .= $search . $whichauthor . $whichmimetype;
       
  2560 
       
  2561 		if ( empty($q['order']) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC')) )
       
  2562 			$q['order'] = 'DESC';
       
  2563 
       
  2564 		// Order by
       
  2565 		if ( empty($q['orderby']) ) {
       
  2566 			$orderby = "$wpdb->posts.post_date " . $q['order'];
       
  2567 		} elseif ( 'none' == $q['orderby'] ) {
       
  2568 			$orderby = '';
       
  2569 		} elseif ( $q['orderby'] == 'post__in' && ! empty( $post__in ) ) {
       
  2570 			$orderby = "FIELD( {$wpdb->posts}.ID, $post__in )";
       
  2571 		} elseif ( $q['orderby'] == 'post_parent__in' && ! empty( $post_parent__in ) ) {
       
  2572 			$orderby = "FIELD( {$wpdb->posts}.post_parent, $post_parent__in )";
       
  2573 		} else {
       
  2574 			// Used to filter values
       
  2575 			$allowed_keys = array('name', 'author', 'date', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand', 'comment_count');
       
  2576 			if ( !empty($q['meta_key']) ) {
       
  2577 				$allowed_keys[] = $q['meta_key'];
       
  2578 				$allowed_keys[] = 'meta_value';
       
  2579 				$allowed_keys[] = 'meta_value_num';
       
  2580 			}
       
  2581 			$q['orderby'] = urldecode($q['orderby']);
       
  2582 			$q['orderby'] = addslashes_gpc($q['orderby']);
       
  2583 
       
  2584 			$orderby_array = array();
       
  2585 			foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {
       
  2586 				// Only allow certain values for safety
       
  2587 				if ( ! in_array($orderby, $allowed_keys) )
       
  2588 					continue;
       
  2589 
       
  2590 				switch ( $orderby ) {
       
  2591 					case 'menu_order':
       
  2592 						$orderby = "$wpdb->posts.menu_order";
       
  2593 						break;
       
  2594 					case 'ID':
       
  2595 						$orderby = "$wpdb->posts.ID";
       
  2596 						break;
       
  2597 					case 'rand':
       
  2598 						$orderby = 'RAND()';
       
  2599 						break;
       
  2600 					case $q['meta_key']:
       
  2601 					case 'meta_value':
       
  2602 						if ( isset( $q['meta_type'] ) ) {
       
  2603 							$meta_type = $this->meta_query->get_cast_for_type( $q['meta_type'] );
       
  2604 							$orderby = "CAST($wpdb->postmeta.meta_value AS {$meta_type})";
       
  2605 						} else {
       
  2606 							$orderby = "$wpdb->postmeta.meta_value";
       
  2607 						}
       
  2608 						break;
       
  2609 					case 'meta_value_num':
       
  2610 						$orderby = "$wpdb->postmeta.meta_value+0";
       
  2611 						break;
       
  2612 					case 'comment_count':
       
  2613 						$orderby = "$wpdb->posts.comment_count";
       
  2614 						break;
       
  2615 					default:
       
  2616 						$orderby = "$wpdb->posts.post_" . $orderby;
       
  2617 				}
       
  2618 
       
  2619 				$orderby_array[] = $orderby;
       
  2620 			}
       
  2621 			$orderby = implode( ',', $orderby_array );
       
  2622 
       
  2623 			if ( empty( $orderby ) )
       
  2624 				$orderby = "$wpdb->posts.post_date ".$q['order'];
       
  2625 			else
       
  2626 				$orderby .= " {$q['order']}";
       
  2627 		}
       
  2628 
       
  2629 		// Order search results by relevance only when another "orderby" is not specified in the query.
       
  2630 		if ( ! empty( $q['s'] ) ) {
       
  2631 			$search_orderby = '';
       
  2632 			if ( ! empty( $q['search_orderby_title'] ) && ( empty( $q['orderby'] ) && ! $this->is_feed ) || ( isset( $q['orderby'] ) && 'relevance' === $q['orderby'] ) )
       
  2633 				$search_orderby = $this->parse_search_order( $q );
       
  2634 
       
  2635 			/**
       
  2636 			 * Filter the ORDER BY used when ordering search results.
       
  2637 			 *
       
  2638 			 * @since 3.7.0
       
  2639 			 *
       
  2640 			 * @param string   $search_orderby The ORDER BY clause.
       
  2641 			 * @param WP_Query $this           The current WP_Query instance.
       
  2642 			 */
       
  2643 			$search_orderby = apply_filters( 'posts_search_orderby', $search_orderby, $this );
       
  2644 			if ( $search_orderby )
       
  2645 				$orderby = $orderby ? $search_orderby . ', ' . $orderby : $search_orderby;
       
  2646 		}
       
  2647 
       
  2648 		if ( is_array( $post_type ) && count( $post_type ) > 1 ) {
       
  2649 			$post_type_cap = 'multiple_post_type';
       
  2650 		} else {
       
  2651 			if ( is_array( $post_type ) )
       
  2652 				$post_type = reset( $post_type );
       
  2653 			$post_type_object = get_post_type_object( $post_type );
       
  2654 			if ( empty( $post_type_object ) )
       
  2655 				$post_type_cap = $post_type;
       
  2656 		}
       
  2657 
       
  2658 		if ( 'any' == $post_type ) {
       
  2659 			$in_search_post_types = get_post_types( array('exclude_from_search' => false) );
       
  2660 			if ( empty( $in_search_post_types ) )
       
  2661 				$where .= ' AND 1=0 ';
       
  2662 			else
       
  2663 				$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')";
       
  2664 		} elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
       
  2665 			$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";
       
  2666 		} elseif ( ! empty( $post_type ) ) {
       
  2667 			$where .= " AND $wpdb->posts.post_type = '$post_type'";
       
  2668 			$post_type_object = get_post_type_object ( $post_type );
       
  2669 		} elseif ( $this->is_attachment ) {
       
  2670 			$where .= " AND $wpdb->posts.post_type = 'attachment'";
       
  2671 			$post_type_object = get_post_type_object ( 'attachment' );
       
  2672 		} elseif ( $this->is_page ) {
       
  2673 			$where .= " AND $wpdb->posts.post_type = 'page'";
       
  2674 			$post_type_object = get_post_type_object ( 'page' );
       
  2675 		} else {
       
  2676 			$where .= " AND $wpdb->posts.post_type = 'post'";
       
  2677 			$post_type_object = get_post_type_object ( 'post' );
       
  2678 		}
       
  2679 
       
  2680 		$edit_cap = 'edit_post';
       
  2681 		$read_cap = 'read_post';
       
  2682 
       
  2683 		if ( ! empty( $post_type_object ) ) {
       
  2684 			$edit_others_cap = $post_type_object->cap->edit_others_posts;
       
  2685 			$read_private_cap = $post_type_object->cap->read_private_posts;
       
  2686 		} else {
       
  2687 			$edit_others_cap = 'edit_others_' . $post_type_cap . 's';
       
  2688 			$read_private_cap = 'read_private_' . $post_type_cap . 's';
       
  2689 		}
       
  2690 
       
  2691 		$user_id = get_current_user_id();
       
  2692 
       
  2693 		if ( ! empty( $q['post_status'] ) ) {
       
  2694 			$statuswheres = array();
       
  2695 			$q_status = $q['post_status'];
       
  2696 			if ( ! is_array( $q_status ) )
       
  2697 				$q_status = explode(',', $q_status);
       
  2698 			$r_status = array();
       
  2699 			$p_status = array();
       
  2700 			$e_status = array();
       
  2701 			if ( in_array('any', $q_status) ) {
       
  2702 				foreach ( get_post_stati( array('exclude_from_search' => true) ) as $status )
       
  2703 					$e_status[] = "$wpdb->posts.post_status <> '$status'";
       
  2704 			} else {
       
  2705 				foreach ( get_post_stati() as $status ) {
       
  2706 					if ( in_array( $status, $q_status ) ) {
       
  2707 						if ( 'private' == $status )
       
  2708 							$p_status[] = "$wpdb->posts.post_status = '$status'";
       
  2709 						else
       
  2710 							$r_status[] = "$wpdb->posts.post_status = '$status'";
       
  2711 					}
       
  2712 				}
       
  2713 			}
       
  2714 
       
  2715 			if ( empty($q['perm'] ) || 'readable' != $q['perm'] ) {
       
  2716 				$r_status = array_merge($r_status, $p_status);
       
  2717 				unset($p_status);
       
  2718 			}
       
  2719 
       
  2720 			if ( !empty($e_status) ) {
       
  2721 				$statuswheres[] = "(" . join( ' AND ', $e_status ) . ")";
       
  2722 			}
       
  2723 			if ( !empty($r_status) ) {
       
  2724 				if ( !empty($q['perm'] ) && 'editable' == $q['perm'] && !current_user_can($edit_others_cap) )
       
  2725 					$statuswheres[] = "($wpdb->posts.post_author = $user_id " . "AND (" . join( ' OR ', $r_status ) . "))";
       
  2726 				else
       
  2727 					$statuswheres[] = "(" . join( ' OR ', $r_status ) . ")";
       
  2728 			}
       
  2729 			if ( !empty($p_status) ) {
       
  2730 				if ( !empty($q['perm'] ) && 'readable' == $q['perm'] && !current_user_can($read_private_cap) )
       
  2731 					$statuswheres[] = "($wpdb->posts.post_author = $user_id " . "AND (" . join( ' OR ', $p_status ) . "))";
       
  2732 				else
       
  2733 					$statuswheres[] = "(" . join( ' OR ', $p_status ) . ")";
       
  2734 			}
       
  2735 			if ( $post_status_join ) {
       
  2736 				$join .= " LEFT JOIN $wpdb->posts AS p2 ON ($wpdb->posts.post_parent = p2.ID) ";
       
  2737 				foreach ( $statuswheres as $index => $statuswhere )
       
  2738 					$statuswheres[$index] = "($statuswhere OR ($wpdb->posts.post_status = 'inherit' AND " . str_replace($wpdb->posts, 'p2', $statuswhere) . "))";
       
  2739 			}
       
  2740 			foreach ( $statuswheres as $statuswhere )
       
  2741 				$where .= " AND $statuswhere";
       
  2742 		} elseif ( !$this->is_singular ) {
       
  2743 			$where .= " AND ($wpdb->posts.post_status = 'publish'";
       
  2744 
       
  2745 			// Add public states.
       
  2746 			$public_states = get_post_stati( array('public' => true) );
       
  2747 			foreach ( (array) $public_states as $state ) {
       
  2748 				if ( 'publish' == $state ) // Publish is hard-coded above.
       
  2749 					continue;
       
  2750 				$where .= " OR $wpdb->posts.post_status = '$state'";
       
  2751 			}
       
  2752 
       
  2753 			if ( $this->is_admin ) {
       
  2754 				// Add protected states that should show in the admin all list.
       
  2755 				$admin_all_states = get_post_stati( array('protected' => true, 'show_in_admin_all_list' => true) );
       
  2756 				foreach ( (array) $admin_all_states as $state )
       
  2757 					$where .= " OR $wpdb->posts.post_status = '$state'";
       
  2758 			}
       
  2759 
       
  2760 			if ( is_user_logged_in() ) {
       
  2761 				// Add private states that are limited to viewing by the author of a post or someone who has caps to read private states.
       
  2762 				$private_states = get_post_stati( array('private' => true) );
       
  2763 				foreach ( (array) $private_states as $state )
       
  2764 					$where .= current_user_can( $read_private_cap ) ? " OR $wpdb->posts.post_status = '$state'" : " OR $wpdb->posts.post_author = $user_id AND $wpdb->posts.post_status = '$state'";
       
  2765 			}
       
  2766 
       
  2767 			$where .= ')';
       
  2768 		}
       
  2769 
       
  2770 		if ( !empty( $this->meta_query->queries ) ) {
       
  2771 			$clauses = $this->meta_query->get_sql( 'post', $wpdb->posts, 'ID', $this );
       
  2772 			$join .= $clauses['join'];
       
  2773 			$where .= $clauses['where'];
       
  2774 		}
       
  2775 
       
  2776 		// Apply filters on where and join prior to paging so that any
       
  2777 		// manipulations to them are reflected in the paging by day queries.
       
  2778 		if ( !$q['suppress_filters'] ) {
       
  2779 			$where = apply_filters_ref_array('posts_where', array( $where, &$this ) );
       
  2780 			$join = apply_filters_ref_array('posts_join', array( $join, &$this ) );
       
  2781 		}
       
  2782 
       
  2783 		// Paging
       
  2784 		if ( empty($q['nopaging']) && !$this->is_singular ) {
       
  2785 			$page = absint($q['paged']);
       
  2786 			if ( !$page )
       
  2787 				$page = 1;
       
  2788 
       
  2789 			if ( empty($q['offset']) ) {
       
  2790 				$pgstrt = ($page - 1) * $q['posts_per_page'] . ', ';
       
  2791 			} else { // we're ignoring $page and using 'offset'
       
  2792 				$q['offset'] = absint($q['offset']);
       
  2793 				$pgstrt = $q['offset'] . ', ';
       
  2794 			}
       
  2795 			$limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
       
  2796 		}
       
  2797 
       
  2798 		// Comments feeds
       
  2799 		if ( $this->is_comment_feed && ( $this->is_archive || $this->is_search || !$this->is_singular ) ) {
       
  2800 			if ( $this->is_archive || $this->is_search ) {
       
  2801 				$cjoin = "JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) $join ";
       
  2802 				$cwhere = "WHERE comment_approved = '1' $where";
       
  2803 				$cgroupby = "$wpdb->comments.comment_id";
       
  2804 			} else { // Other non singular e.g. front
       
  2805 				$cjoin = "JOIN $wpdb->posts ON ( $wpdb->comments.comment_post_ID = $wpdb->posts.ID )";
       
  2806 				$cwhere = "WHERE post_status = 'publish' AND comment_approved = '1'";
       
  2807 				$cgroupby = '';
       
  2808 			}
       
  2809 
       
  2810 			if ( !$q['suppress_filters'] ) {
       
  2811 				$cjoin = apply_filters_ref_array('comment_feed_join', array( $cjoin, &$this ) );
       
  2812 				$cwhere = apply_filters_ref_array('comment_feed_where', array( $cwhere, &$this ) );
       
  2813 				$cgroupby = apply_filters_ref_array('comment_feed_groupby', array( $cgroupby, &$this ) );
       
  2814 				$corderby = apply_filters_ref_array('comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );
       
  2815 				$climits = apply_filters_ref_array('comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );
       
  2816 			}
       
  2817 			$cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
       
  2818 			$corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
       
  2819 
       
  2820 			$this->comments = (array) $wpdb->get_results("SELECT $distinct $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits");
       
  2821 			$this->comment_count = count($this->comments);
       
  2822 
       
  2823 			$post_ids = array();
       
  2824 
       
  2825 			foreach ( $this->comments as $comment )
       
  2826 				$post_ids[] = (int) $comment->comment_post_ID;
       
  2827 
       
  2828 			$post_ids = join(',', $post_ids);
       
  2829 			$join = '';
       
  2830 			if ( $post_ids )
       
  2831 				$where = "AND $wpdb->posts.ID IN ($post_ids) ";
       
  2832 			else
       
  2833 				$where = "AND 0";
       
  2834 		}
       
  2835 
       
  2836 		$pieces = array( 'where', 'groupby', 'join', 'orderby', 'distinct', 'fields', 'limits' );
       
  2837 
       
  2838 		// Apply post-paging filters on where and join. Only plugins that
       
  2839 		// manipulate paging queries should use these hooks.
       
  2840 		if ( !$q['suppress_filters'] ) {
       
  2841 			$where		= apply_filters_ref_array( 'posts_where_paged',	array( $where, &$this ) );
       
  2842 			$groupby	= apply_filters_ref_array( 'posts_groupby',		array( $groupby, &$this ) );
       
  2843 			$join		= apply_filters_ref_array( 'posts_join_paged',	array( $join, &$this ) );
       
  2844 			$orderby	= apply_filters_ref_array( 'posts_orderby',		array( $orderby, &$this ) );
       
  2845 			$distinct	= apply_filters_ref_array( 'posts_distinct',	array( $distinct, &$this ) );
       
  2846 			$limits		= apply_filters_ref_array( 'post_limits',		array( $limits, &$this ) );
       
  2847 			$fields		= apply_filters_ref_array( 'posts_fields',		array( $fields, &$this ) );
       
  2848 
       
  2849 			// Filter all clauses at once, for convenience
       
  2850 			$clauses = (array) apply_filters_ref_array( 'posts_clauses', array( compact( $pieces ), &$this ) );
       
  2851 			foreach ( $pieces as $piece )
       
  2852 				$$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : '';
       
  2853 		}
       
  2854 
       
  2855 		// Announce current selection parameters. For use by caching plugins.
       
  2856 		do_action( 'posts_selection', $where . $groupby . $orderby . $limits . $join );
       
  2857 
       
  2858 		// Filter again for the benefit of caching plugins. Regular plugins should use the hooks above.
       
  2859 		if ( !$q['suppress_filters'] ) {
       
  2860 			$where		= apply_filters_ref_array( 'posts_where_request',		array( $where, &$this ) );
       
  2861 			$groupby	= apply_filters_ref_array( 'posts_groupby_request',		array( $groupby, &$this ) );
       
  2862 			$join		= apply_filters_ref_array( 'posts_join_request',		array( $join, &$this ) );
       
  2863 			$orderby	= apply_filters_ref_array( 'posts_orderby_request',		array( $orderby, &$this ) );
       
  2864 			$distinct	= apply_filters_ref_array( 'posts_distinct_request',	array( $distinct, &$this ) );
       
  2865 			$fields		= apply_filters_ref_array( 'posts_fields_request',		array( $fields, &$this ) );
       
  2866 			$limits		= apply_filters_ref_array( 'post_limits_request',		array( $limits, &$this ) );
       
  2867 
       
  2868 			// Filter all clauses at once, for convenience
       
  2869 			$clauses = (array) apply_filters_ref_array( 'posts_clauses_request', array( compact( $pieces ), &$this ) );
       
  2870 			foreach ( $pieces as $piece )
       
  2871 				$$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : '';
       
  2872 		}
       
  2873 
       
  2874 		if ( ! empty($groupby) )
       
  2875 			$groupby = 'GROUP BY ' . $groupby;
       
  2876 		if ( !empty( $orderby ) )
       
  2877 			$orderby = 'ORDER BY ' . $orderby;
       
  2878 
       
  2879 		$found_rows = '';
       
  2880 		if ( !$q['no_found_rows'] && !empty($limits) )
       
  2881 			$found_rows = 'SQL_CALC_FOUND_ROWS';
       
  2882 
       
  2883 		$this->request = $old_request = "SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
       
  2884 
       
  2885 		if ( !$q['suppress_filters'] ) {
       
  2886 			$this->request = apply_filters_ref_array( 'posts_request', array( $this->request, &$this ) );
       
  2887 		}
       
  2888 
       
  2889 		if ( 'ids' == $q['fields'] ) {
       
  2890 			$this->posts = $wpdb->get_col( $this->request );
       
  2891 			$this->post_count = count( $this->posts );
       
  2892 			$this->set_found_posts( $q, $limits );
       
  2893 
       
  2894 			return $this->posts;
       
  2895 		}
       
  2896 
       
  2897 		if ( 'id=>parent' == $q['fields'] ) {
       
  2898 			$this->posts = $wpdb->get_results( $this->request );
       
  2899 			$this->post_count = count( $this->posts );
       
  2900 			$this->set_found_posts( $q, $limits );
       
  2901 
       
  2902 			$r = array();
       
  2903 			foreach ( $this->posts as $post )
       
  2904 				$r[ $post->ID ] = $post->post_parent;
       
  2905 
       
  2906 			return $r;
       
  2907 		}
       
  2908 
       
  2909 		$split_the_query = ( $old_request == $this->request && "$wpdb->posts.*" == $fields && !empty( $limits ) && $q['posts_per_page'] < 500 );
       
  2910 		$split_the_query = apply_filters( 'split_the_query', $split_the_query, $this );
       
  2911 
       
  2912 		if ( $split_the_query ) {
       
  2913 			// First get the IDs and then fill in the objects
       
  2914 
       
  2915 			$this->request = "SELECT $found_rows $distinct $wpdb->posts.ID FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
       
  2916 
       
  2917 			$this->request = apply_filters( 'posts_request_ids', $this->request, $this );
       
  2918 
       
  2919 			$ids = $wpdb->get_col( $this->request );
       
  2920 
       
  2921 			if ( $ids ) {
       
  2922 				$this->posts = $ids;
       
  2923 				$this->set_found_posts( $q, $limits );
       
  2924 				_prime_post_caches( $ids, $q['update_post_term_cache'], $q['update_post_meta_cache'] );
       
  2925 			} else {
       
  2926 				$this->posts = array();
       
  2927 			}
       
  2928 		} else {
       
  2929 			$this->posts = $wpdb->get_results( $this->request );
       
  2930 			$this->set_found_posts( $q, $limits );
       
  2931 		}
       
  2932 
       
  2933 		// Convert to WP_Post objects
       
  2934 		if ( $this->posts )
       
  2935 			$this->posts = array_map( 'get_post', $this->posts );
       
  2936 
       
  2937 		// Raw results filter. Prior to status checks.
       
  2938 		if ( !$q['suppress_filters'] )
       
  2939 			$this->posts = apply_filters_ref_array('posts_results', array( $this->posts, &$this ) );
       
  2940 
       
  2941 		if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {
       
  2942 			$cjoin = apply_filters_ref_array('comment_feed_join', array( '', &$this ) );
       
  2943 			$cwhere = apply_filters_ref_array('comment_feed_where', array( "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'", &$this ) );
       
  2944 			$cgroupby = apply_filters_ref_array('comment_feed_groupby', array( '', &$this ) );
       
  2945 			$cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';
       
  2946 			$corderby = apply_filters_ref_array('comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );
       
  2947 			$corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';
       
  2948 			$climits = apply_filters_ref_array('comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );
       
  2949 			$comments_request = "SELECT $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits";
       
  2950 			$this->comments = $wpdb->get_results($comments_request);
       
  2951 			$this->comment_count = count($this->comments);
       
  2952 		}
       
  2953 
       
  2954 		// Check post status to determine if post should be displayed.
       
  2955 		if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {
       
  2956 			$status = get_post_status($this->posts[0]);
       
  2957 			$post_status_obj = get_post_status_object($status);
       
  2958 			//$type = get_post_type($this->posts[0]);
       
  2959 			if ( !$post_status_obj->public ) {
       
  2960 				if ( ! is_user_logged_in() ) {
       
  2961 					// User must be logged in to view unpublished posts.
       
  2962 					$this->posts = array();
       
  2963 				} else {
       
  2964 					if  ( $post_status_obj->protected ) {
       
  2965 						// User must have edit permissions on the draft to preview.
       
  2966 						if ( ! current_user_can($edit_cap, $this->posts[0]->ID) ) {
       
  2967 							$this->posts = array();
       
  2968 						} else {
       
  2969 							$this->is_preview = true;
       
  2970 							if ( 'future' != $status )
       
  2971 								$this->posts[0]->post_date = current_time('mysql');
       
  2972 						}
       
  2973 					} elseif ( $post_status_obj->private ) {
       
  2974 						if ( ! current_user_can($read_cap, $this->posts[0]->ID) )
       
  2975 							$this->posts = array();
       
  2976 					} else {
       
  2977 						$this->posts = array();
       
  2978 					}
       
  2979 				}
       
  2980 			}
       
  2981 
       
  2982 			if ( $this->is_preview && $this->posts && current_user_can( $edit_cap, $this->posts[0]->ID ) )
       
  2983 				$this->posts[0] = get_post( apply_filters_ref_array( 'the_preview', array( $this->posts[0], &$this ) ) );
       
  2984 		}
       
  2985 
       
  2986 		// Put sticky posts at the top of the posts array
       
  2987 		$sticky_posts = get_option('sticky_posts');
       
  2988 		if ( $this->is_home && $page <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !$q['ignore_sticky_posts'] ) {
       
  2989 			$num_posts = count($this->posts);
       
  2990 			$sticky_offset = 0;
       
  2991 			// Loop over posts and relocate stickies to the front.
       
  2992 			for ( $i = 0; $i < $num_posts; $i++ ) {
       
  2993 				if ( in_array($this->posts[$i]->ID, $sticky_posts) ) {
       
  2994 					$sticky_post = $this->posts[$i];
       
  2995 					// Remove sticky from current position
       
  2996 					array_splice($this->posts, $i, 1);
       
  2997 					// Move to front, after other stickies
       
  2998 					array_splice($this->posts, $sticky_offset, 0, array($sticky_post));
       
  2999 					// Increment the sticky offset. The next sticky will be placed at this offset.
       
  3000 					$sticky_offset++;
       
  3001 					// Remove post from sticky posts array
       
  3002 					$offset = array_search($sticky_post->ID, $sticky_posts);
       
  3003 					unset( $sticky_posts[$offset] );
       
  3004 				}
       
  3005 			}
       
  3006 
       
  3007 			// If any posts have been excluded specifically, Ignore those that are sticky.
       
  3008 			if ( !empty($sticky_posts) && !empty($q['post__not_in']) )
       
  3009 				$sticky_posts = array_diff($sticky_posts, $q['post__not_in']);
       
  3010 
       
  3011 			// Fetch sticky posts that weren't in the query results
       
  3012 			if ( !empty($sticky_posts) ) {
       
  3013 				$stickies = get_posts( array(
       
  3014 					'post__in' => $sticky_posts,
       
  3015 					'post_type' => $post_type,
       
  3016 					'post_status' => 'publish',
       
  3017 					'nopaging' => true
       
  3018 				) );
       
  3019 
       
  3020 				foreach ( $stickies as $sticky_post ) {
       
  3021 					array_splice( $this->posts, $sticky_offset, 0, array( $sticky_post ) );
       
  3022 					$sticky_offset++;
       
  3023 				}
       
  3024 			}
       
  3025 		}
       
  3026 
       
  3027 		if ( !$q['suppress_filters'] )
       
  3028 			$this->posts = apply_filters_ref_array('the_posts', array( $this->posts, &$this ) );
       
  3029 
       
  3030 		// Ensure that any posts added/modified via one of the filters above are
       
  3031 		// of the type WP_Post and are filtered.
       
  3032 		if ( $this->posts ) {
       
  3033 			$this->post_count = count( $this->posts );
       
  3034 
       
  3035 			$this->posts = array_map( 'get_post', $this->posts );
       
  3036 
       
  3037 			if ( $q['cache_results'] )
       
  3038 				update_post_caches($this->posts, $post_type, $q['update_post_term_cache'], $q['update_post_meta_cache']);
       
  3039 
       
  3040 			$this->post = reset( $this->posts );
       
  3041 		} else {
       
  3042 			$this->post_count = 0;
       
  3043 			$this->posts = array();
       
  3044 		}
       
  3045 
       
  3046 		return $this->posts;
       
  3047 	}
       
  3048 
       
  3049 	/**
       
  3050 	 * Set up the amount of found posts and the number of pages (if limit clause was used)
       
  3051 	 * for the current query.
       
  3052 	 *
       
  3053 	 * @since 3.5.0
       
  3054 	 * @access private
       
  3055 	 */
       
  3056 	function set_found_posts( $q, $limits ) {
       
  3057 		global $wpdb;
       
  3058 
       
  3059 		// Bail if posts is an empty array. Continue if posts is an empty string,
       
  3060 		// null, or false to accommodate caching plugins that fill posts later.
       
  3061 		if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) )
       
  3062 			return;
       
  3063 
       
  3064 		if ( ! empty( $limits ) )
       
  3065 			$this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) );
       
  3066 		else
       
  3067 			$this->found_posts = count( $this->posts );
       
  3068 
       
  3069 		$this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) );
       
  3070 
       
  3071 		if ( ! empty( $limits ) )
       
  3072 			$this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] );
       
  3073 	}
       
  3074 
       
  3075 	/**
       
  3076 	 * Set up the next post and iterate current post index.
       
  3077 	 *
       
  3078 	 * @since 1.5.0
       
  3079 	 * @access public
       
  3080 	 *
       
  3081 	 * @return WP_Post Next post.
       
  3082 	 */
       
  3083 	function next_post() {
       
  3084 
       
  3085 		$this->current_post++;
       
  3086 
       
  3087 		$this->post = $this->posts[$this->current_post];
       
  3088 		return $this->post;
       
  3089 	}
       
  3090 
       
  3091 	/**
       
  3092 	 * Sets up the current post.
       
  3093 	 *
       
  3094 	 * Retrieves the next post, sets up the post, sets the 'in the loop'
       
  3095 	 * property to true.
       
  3096 	 *
       
  3097 	 * @since 1.5.0
       
  3098 	 * @access public
       
  3099 	 * @uses $post
       
  3100 	 * @uses do_action_ref_array() Calls 'loop_start' if loop has just started
       
  3101 	 */
       
  3102 	function the_post() {
       
  3103 		global $post;
       
  3104 		$this->in_the_loop = true;
       
  3105 
       
  3106 		if ( $this->current_post == -1 ) // loop has just started
       
  3107 			do_action_ref_array('loop_start', array(&$this));
       
  3108 
       
  3109 		$post = $this->next_post();
       
  3110 		setup_postdata($post);
       
  3111 	}
       
  3112 
       
  3113 	/**
       
  3114 	 * Whether there are more posts available in the loop.
       
  3115 	 *
       
  3116 	 * Calls action 'loop_end', when the loop is complete.
       
  3117 	 *
       
  3118 	 * @since 1.5.0
       
  3119 	 * @access public
       
  3120 	 * @uses do_action_ref_array() Calls 'loop_end' if loop is ended
       
  3121 	 *
       
  3122 	 * @return bool True if posts are available, false if end of loop.
       
  3123 	 */
       
  3124 	function have_posts() {
       
  3125 		if ( $this->current_post + 1 < $this->post_count ) {
       
  3126 			return true;
       
  3127 		} elseif ( $this->current_post + 1 == $this->post_count && $this->post_count > 0 ) {
       
  3128 			do_action_ref_array('loop_end', array(&$this));
       
  3129 			// Do some cleaning up after the loop
       
  3130 			$this->rewind_posts();
       
  3131 		}
       
  3132 
       
  3133 		$this->in_the_loop = false;
       
  3134 		return false;
       
  3135 	}
       
  3136 
       
  3137 	/**
       
  3138 	 * Rewind the posts and reset post index.
       
  3139 	 *
       
  3140 	 * @since 1.5.0
       
  3141 	 * @access public
       
  3142 	 */
       
  3143 	function rewind_posts() {
       
  3144 		$this->current_post = -1;
       
  3145 		if ( $this->post_count > 0 ) {
       
  3146 			$this->post = $this->posts[0];
       
  3147 		}
       
  3148 	}
       
  3149 
       
  3150 	/**
       
  3151 	 * Iterate current comment index and return comment object.
       
  3152 	 *
       
  3153 	 * @since 2.2.0
       
  3154 	 * @access public
       
  3155 	 *
       
  3156 	 * @return object Comment object.
       
  3157 	 */
       
  3158 	function next_comment() {
       
  3159 		$this->current_comment++;
       
  3160 
       
  3161 		$this->comment = $this->comments[$this->current_comment];
       
  3162 		return $this->comment;
       
  3163 	}
       
  3164 
       
  3165 	/**
       
  3166 	 * Sets up the current comment.
       
  3167 	 *
       
  3168 	 * @since 2.2.0
       
  3169 	 * @access public
       
  3170 	 * @global object $comment Current comment.
       
  3171 	 * @uses do_action() Calls 'comment_loop_start' hook when first comment is processed.
       
  3172 	 */
       
  3173 	function the_comment() {
       
  3174 		global $comment;
       
  3175 
       
  3176 		$comment = $this->next_comment();
       
  3177 
       
  3178 		if ( $this->current_comment == 0 ) {
       
  3179 			do_action('comment_loop_start');
       
  3180 		}
       
  3181 	}
       
  3182 
       
  3183 	/**
       
  3184 	 * Whether there are more comments available.
       
  3185 	 *
       
  3186 	 * Automatically rewinds comments when finished.
       
  3187 	 *
       
  3188 	 * @since 2.2.0
       
  3189 	 * @access public
       
  3190 	 *
       
  3191 	 * @return bool True, if more comments. False, if no more posts.
       
  3192 	 */
       
  3193 	function have_comments() {
       
  3194 		if ( $this->current_comment + 1 < $this->comment_count ) {
       
  3195 			return true;
       
  3196 		} elseif ( $this->current_comment + 1 == $this->comment_count ) {
       
  3197 			$this->rewind_comments();
       
  3198 		}
       
  3199 
       
  3200 		return false;
       
  3201 	}
       
  3202 
       
  3203 	/**
       
  3204 	 * Rewind the comments, resets the comment index and comment to first.
       
  3205 	 *
       
  3206 	 * @since 2.2.0
       
  3207 	 * @access public
       
  3208 	 */
       
  3209 	function rewind_comments() {
       
  3210 		$this->current_comment = -1;
       
  3211 		if ( $this->comment_count > 0 ) {
       
  3212 			$this->comment = $this->comments[0];
       
  3213 		}
       
  3214 	}
       
  3215 
       
  3216 	/**
       
  3217 	 * Sets up the WordPress query by parsing query string.
       
  3218 	 *
       
  3219 	 * @since 1.5.0
       
  3220 	 * @access public
       
  3221 	 *
       
  3222 	 * @param string $query URL query string.
       
  3223 	 * @return array List of posts.
       
  3224 	 */
       
  3225 	function query( $query ) {
       
  3226 		$this->init();
       
  3227 		$this->query = $this->query_vars = wp_parse_args( $query );
       
  3228 		return $this->get_posts();
       
  3229 	}
       
  3230 
       
  3231 	/**
       
  3232 	 * Retrieve queried object.
       
  3233 	 *
       
  3234 	 * If queried object is not set, then the queried object will be set from
       
  3235 	 * the category, tag, taxonomy, posts page, single post, page, or author
       
  3236 	 * query variable. After it is set up, it will be returned.
       
  3237 	 *
       
  3238 	 * @since 1.5.0
       
  3239 	 * @access public
       
  3240 	 *
       
  3241 	 * @return object
       
  3242 	 */
       
  3243 	function get_queried_object() {
       
  3244 		if ( isset($this->queried_object) )
       
  3245 			return $this->queried_object;
       
  3246 
       
  3247 		$this->queried_object = null;
       
  3248 		$this->queried_object_id = 0;
       
  3249 
       
  3250 		if ( $this->is_category || $this->is_tag || $this->is_tax ) {
       
  3251 			$tax_query_in_and = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'NOT IN' ), 'NOT' );
       
  3252 
       
  3253 			$query = reset( $tax_query_in_and );
       
  3254 
       
  3255 			if ( 'term_id' == $query['field'] )
       
  3256 				$term = get_term( reset( $query['terms'] ), $query['taxonomy'] );
       
  3257 			elseif ( $query['terms'] )
       
  3258 				$term = get_term_by( $query['field'], reset( $query['terms'] ), $query['taxonomy'] );
       
  3259 
       
  3260 			if ( ! empty( $term ) && ! is_wp_error( $term ) )  {
       
  3261 				$this->queried_object = $term;
       
  3262 				$this->queried_object_id = (int) $term->term_id;
       
  3263 
       
  3264 				if ( $this->is_category )
       
  3265 					_make_cat_compat( $this->queried_object );
       
  3266 			}
       
  3267 		} elseif ( $this->is_post_type_archive ) {
       
  3268 			$post_type = $this->get( 'post_type' );
       
  3269 			if ( is_array( $post_type ) )
       
  3270 				$post_type = reset( $post_type );
       
  3271 			$this->queried_object = get_post_type_object( $post_type );
       
  3272 		} elseif ( $this->is_posts_page ) {
       
  3273 			$page_for_posts = get_option('page_for_posts');
       
  3274 			$this->queried_object = get_post( $page_for_posts );
       
  3275 			$this->queried_object_id = (int) $this->queried_object->ID;
       
  3276 		} elseif ( $this->is_singular && !is_null($this->post) ) {
       
  3277 			$this->queried_object = $this->post;
       
  3278 			$this->queried_object_id = (int) $this->post->ID;
       
  3279 		} elseif ( $this->is_author ) {
       
  3280 			$this->queried_object_id = (int) $this->get('author');
       
  3281 			$this->queried_object = get_userdata( $this->queried_object_id );
       
  3282 		}
       
  3283 
       
  3284 		return $this->queried_object;
       
  3285 	}
       
  3286 
       
  3287 	/**
       
  3288 	 * Retrieve ID of the current queried object.
       
  3289 	 *
       
  3290 	 * @since 1.5.0
       
  3291 	 * @access public
       
  3292 	 *
       
  3293 	 * @return int
       
  3294 	 */
       
  3295 	function get_queried_object_id() {
       
  3296 		$this->get_queried_object();
       
  3297 
       
  3298 		if ( isset($this->queried_object_id) ) {
       
  3299 			return $this->queried_object_id;
       
  3300 		}
       
  3301 
       
  3302 		return 0;
       
  3303 	}
       
  3304 
       
  3305 	/**
       
  3306 	 * Constructor.
       
  3307 	 *
       
  3308 	 * Sets up the WordPress query, if parameter is not empty.
       
  3309 	 *
       
  3310 	 * @since 1.5.0
       
  3311 	 * @access public
       
  3312 	 *
       
  3313 	 * @param string $query URL query string.
       
  3314 	 * @return WP_Query
       
  3315 	 */
       
  3316 	function __construct($query = '') {
       
  3317 		if ( ! empty($query) ) {
       
  3318 			$this->query($query);
       
  3319 		}
       
  3320 	}
       
  3321 
       
  3322 	/**
       
  3323  	 * Is the query for an existing archive page?
       
  3324  	 *
       
  3325  	 * Month, Year, Category, Author, Post Type archive...
       
  3326 	 *
       
  3327  	 * @since 3.1.0
       
  3328  	 *
       
  3329  	 * @return bool
       
  3330  	 */
       
  3331 	function is_archive() {
       
  3332 		return (bool) $this->is_archive;
       
  3333 	}
       
  3334 
       
  3335 	/**
       
  3336 	 * Is the query for an existing post type archive page?
       
  3337 	 *
       
  3338 	 * @since 3.1.0
       
  3339 	 *
       
  3340 	 * @param mixed $post_types Optional. Post type or array of posts types to check against.
       
  3341 	 * @return bool
       
  3342 	 */
       
  3343 	function is_post_type_archive( $post_types = '' ) {
       
  3344 		if ( empty( $post_types ) || ! $this->is_post_type_archive )
       
  3345 			return (bool) $this->is_post_type_archive;
       
  3346 
       
  3347 		$post_type = $this->get( 'post_type' );
       
  3348 		if ( is_array( $post_type ) )
       
  3349 			$post_type = reset( $post_type );
       
  3350 		$post_type_object = get_post_type_object( $post_type );
       
  3351 
       
  3352 		return in_array( $post_type_object->name, (array) $post_types );
       
  3353 	}
       
  3354 
       
  3355 	/**
       
  3356 	 * Is the query for an existing attachment page?
       
  3357 	 *
       
  3358 	 * @since 3.1.0
       
  3359 	 *
       
  3360 	 * @return bool
       
  3361 	 */
       
  3362 	function is_attachment() {
       
  3363 		return (bool) $this->is_attachment;
       
  3364 	}
       
  3365 
       
  3366 	/**
       
  3367 	 * Is the query for an existing author archive page?
       
  3368 	 *
       
  3369 	 * If the $author parameter is specified, this function will additionally
       
  3370 	 * check if the query is for one of the authors specified.
       
  3371 	 *
       
  3372 	 * @since 3.1.0
       
  3373 	 *
       
  3374 	 * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames
       
  3375 	 * @return bool
       
  3376 	 */
       
  3377 	function is_author( $author = '' ) {
       
  3378 		if ( !$this->is_author )
       
  3379 			return false;
       
  3380 
       
  3381 		if ( empty($author) )
       
  3382 			return true;
       
  3383 
       
  3384 		$author_obj = $this->get_queried_object();
       
  3385 
       
  3386 		$author = (array) $author;
       
  3387 
       
  3388 		if ( in_array( $author_obj->ID, $author ) )
       
  3389 			return true;
       
  3390 		elseif ( in_array( $author_obj->nickname, $author ) )
       
  3391 			return true;
       
  3392 		elseif ( in_array( $author_obj->user_nicename, $author ) )
       
  3393 			return true;
       
  3394 
       
  3395 		return false;
       
  3396 	}
       
  3397 
       
  3398 	/**
       
  3399 	 * Is the query for an existing category archive page?
       
  3400 	 *
       
  3401 	 * If the $category parameter is specified, this function will additionally
       
  3402 	 * check if the query is for one of the categories specified.
       
  3403 	 *
       
  3404 	 * @since 3.1.0
       
  3405 	 *
       
  3406 	 * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.
       
  3407 	 * @return bool
       
  3408 	 */
       
  3409 	function is_category( $category = '' ) {
       
  3410 		if ( !$this->is_category )
       
  3411 			return false;
       
  3412 
       
  3413 		if ( empty($category) )
       
  3414 			return true;
       
  3415 
       
  3416 		$cat_obj = $this->get_queried_object();
       
  3417 
       
  3418 		$category = (array) $category;
       
  3419 
       
  3420 		if ( in_array( $cat_obj->term_id, $category ) )
       
  3421 			return true;
       
  3422 		elseif ( in_array( $cat_obj->name, $category ) )
       
  3423 			return true;
       
  3424 		elseif ( in_array( $cat_obj->slug, $category ) )
       
  3425 			return true;
       
  3426 
       
  3427 		return false;
       
  3428 	}
       
  3429 
       
  3430 	/**
       
  3431 	 * Is the query for an existing tag archive page?
       
  3432 	 *
       
  3433 	 * If the $tag parameter is specified, this function will additionally
       
  3434 	 * check if the query is for one of the tags specified.
       
  3435 	 *
       
  3436 	 * @since 3.1.0
       
  3437 	 *
       
  3438 	 * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.
       
  3439 	 * @return bool
       
  3440 	 */
       
  3441 	function is_tag( $tag = '' ) {
       
  3442 		if ( ! $this->is_tag )
       
  3443 			return false;
       
  3444 
       
  3445 		if ( empty( $tag ) )
       
  3446 			return true;
       
  3447 
       
  3448 		$tag_obj = $this->get_queried_object();
       
  3449 
       
  3450 		$tag = (array) $tag;
       
  3451 
       
  3452 		if ( in_array( $tag_obj->term_id, $tag ) )
       
  3453 			return true;
       
  3454 		elseif ( in_array( $tag_obj->name, $tag ) )
       
  3455 			return true;
       
  3456 		elseif ( in_array( $tag_obj->slug, $tag ) )
       
  3457 			return true;
       
  3458 
       
  3459 		return false;
       
  3460 	}
       
  3461 
       
  3462 	/**
       
  3463 	 * Is the query for an existing taxonomy archive page?
       
  3464 	 *
       
  3465 	 * If the $taxonomy parameter is specified, this function will additionally
       
  3466 	 * check if the query is for that specific $taxonomy.
       
  3467 	 *
       
  3468 	 * If the $term parameter is specified in addition to the $taxonomy parameter,
       
  3469 	 * this function will additionally check if the query is for one of the terms
       
  3470 	 * specified.
       
  3471 	 *
       
  3472 	 * @since 3.1.0
       
  3473 	 *
       
  3474 	 * @param mixed $taxonomy Optional. Taxonomy slug or slugs.
       
  3475 	 * @param mixed $term. Optional. Term ID, name, slug or array of Term IDs, names, and slugs.
       
  3476 	 * @return bool
       
  3477 	 */
       
  3478 	function is_tax( $taxonomy = '', $term = '' ) {
       
  3479 		global $wp_taxonomies;
       
  3480 
       
  3481 		if ( !$this->is_tax )
       
  3482 			return false;
       
  3483 
       
  3484 		if ( empty( $taxonomy ) )
       
  3485 			return true;
       
  3486 
       
  3487 		$queried_object = $this->get_queried_object();
       
  3488 		$tax_array = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy );
       
  3489 		$term_array = (array) $term;
       
  3490 
       
  3491 		// Check that the taxonomy matches.
       
  3492 		if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array ) ) )
       
  3493 			return false;
       
  3494 
       
  3495 		// Only a Taxonomy provided.
       
  3496 		if ( empty( $term ) )
       
  3497 			return true;
       
  3498 
       
  3499 		return isset( $queried_object->term_id ) &&
       
  3500 			count( array_intersect(
       
  3501 				array( $queried_object->term_id, $queried_object->name, $queried_object->slug ),
       
  3502 				$term_array
       
  3503 			) );
       
  3504 	}
       
  3505 
       
  3506 	/**
       
  3507 	 * Whether the current URL is within the comments popup window.
       
  3508 	 *
       
  3509 	 * @since 3.1.0
       
  3510 	 *
       
  3511 	 * @return bool
       
  3512 	 */
       
  3513 	function is_comments_popup() {
       
  3514 		return (bool) $this->is_comments_popup;
       
  3515 	}
       
  3516 
       
  3517 	/**
       
  3518 	 * Is the query for an existing date archive?
       
  3519 	 *
       
  3520 	 * @since 3.1.0
       
  3521 	 *
       
  3522 	 * @return bool
       
  3523 	 */
       
  3524 	function is_date() {
       
  3525 		return (bool) $this->is_date;
       
  3526 	}
       
  3527 
       
  3528 	/**
       
  3529 	 * Is the query for an existing day archive?
       
  3530 	 *
       
  3531 	 * @since 3.1.0
       
  3532 	 *
       
  3533 	 * @return bool
       
  3534 	 */
       
  3535 	function is_day() {
       
  3536 		return (bool) $this->is_day;
       
  3537 	}
       
  3538 
       
  3539 	/**
       
  3540 	 * Is the query for a feed?
       
  3541 	 *
       
  3542 	 * @since 3.1.0
       
  3543 	 *
       
  3544 	 * @param string|array $feeds Optional feed types to check.
       
  3545 	 * @return bool
       
  3546 	 */
       
  3547 	function is_feed( $feeds = '' ) {
       
  3548 		if ( empty( $feeds ) || ! $this->is_feed )
       
  3549 			return (bool) $this->is_feed;
       
  3550 		$qv = $this->get( 'feed' );
       
  3551 		if ( 'feed' == $qv )
       
  3552 			$qv = get_default_feed();
       
  3553 		return in_array( $qv, (array) $feeds );
       
  3554 	}
       
  3555 
       
  3556 	/**
       
  3557 	 * Is the query for a comments feed?
       
  3558 	 *
       
  3559 	 * @since 3.1.0
       
  3560 	 *
       
  3561 	 * @return bool
       
  3562 	 */
       
  3563 	function is_comment_feed() {
       
  3564 		return (bool) $this->is_comment_feed;
       
  3565 	}
       
  3566 
       
  3567 	/**
       
  3568 	 * Is the query for the front page of the site?
       
  3569 	 *
       
  3570 	 * This is for what is displayed at your site's main URL.
       
  3571 	 *
       
  3572 	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.
       
  3573 	 *
       
  3574 	 * If you set a static page for the front page of your site, this function will return
       
  3575 	 * true when viewing that page.
       
  3576 	 *
       
  3577 	 * Otherwise the same as @see WP_Query::is_home()
       
  3578 	 *
       
  3579 	 * @since 3.1.0
       
  3580 	 * @uses is_home()
       
  3581 	 * @uses get_option()
       
  3582 	 *
       
  3583 	 * @return bool True, if front of site.
       
  3584 	 */
       
  3585 	function is_front_page() {
       
  3586 		// most likely case
       
  3587 		if ( 'posts' == get_option( 'show_on_front') && $this->is_home() )
       
  3588 			return true;
       
  3589 		elseif ( 'page' == get_option( 'show_on_front') && get_option( 'page_on_front' ) && $this->is_page( get_option( 'page_on_front' ) ) )
       
  3590 			return true;
       
  3591 		else
       
  3592 			return false;
       
  3593 	}
       
  3594 
       
  3595 	/**
       
  3596 	 * Is the query for the blog homepage?
       
  3597 	 *
       
  3598 	 * This is the page which shows the time based blog content of your site.
       
  3599 	 *
       
  3600 	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.
       
  3601 	 *
       
  3602 	 * If you set a static page for the front page of your site, this function will return
       
  3603 	 * true only on the page you set as the "Posts page".
       
  3604 	 *
       
  3605 	 * @see WP_Query::is_front_page()
       
  3606 	 *
       
  3607 	 * @since 3.1.0
       
  3608 	 *
       
  3609 	 * @return bool True if blog view homepage.
       
  3610 	 */
       
  3611 	function is_home() {
       
  3612 		return (bool) $this->is_home;
       
  3613 	}
       
  3614 
       
  3615 	/**
       
  3616 	 * Is the query for an existing month archive?
       
  3617 	 *
       
  3618 	 * @since 3.1.0
       
  3619 	 *
       
  3620 	 * @return bool
       
  3621 	 */
       
  3622 	function is_month() {
       
  3623 		return (bool) $this->is_month;
       
  3624 	}
       
  3625 
       
  3626 	/**
       
  3627 	 * Is the query for an existing single page?
       
  3628 	 *
       
  3629 	 * If the $page parameter is specified, this function will additionally
       
  3630 	 * check if the query is for one of the pages specified.
       
  3631 	 *
       
  3632 	 * @see WP_Query::is_single()
       
  3633 	 * @see WP_Query::is_singular()
       
  3634 	 *
       
  3635 	 * @since 3.1.0
       
  3636 	 *
       
  3637 	 * @param mixed $page Page ID, title, slug, or array of such.
       
  3638 	 * @return bool
       
  3639 	 */
       
  3640 	function is_page( $page = '' ) {
       
  3641 		if ( !$this->is_page )
       
  3642 			return false;
       
  3643 
       
  3644 		if ( empty( $page ) )
       
  3645 			return true;
       
  3646 
       
  3647 		$page_obj = $this->get_queried_object();
       
  3648 
       
  3649 		$page = (array) $page;
       
  3650 
       
  3651 		if ( in_array( $page_obj->ID, $page ) )
       
  3652 			return true;
       
  3653 		elseif ( in_array( $page_obj->post_title, $page ) )
       
  3654 			return true;
       
  3655 		else if ( in_array( $page_obj->post_name, $page ) )
       
  3656 			return true;
       
  3657 
       
  3658 		return false;
       
  3659 	}
       
  3660 
       
  3661 	/**
       
  3662 	 * Is the query for paged result and not for the first page?
       
  3663 	 *
       
  3664 	 * @since 3.1.0
       
  3665 	 *
       
  3666 	 * @return bool
       
  3667 	 */
       
  3668 	function is_paged() {
       
  3669 		return (bool) $this->is_paged;
       
  3670 	}
       
  3671 
       
  3672 	/**
       
  3673 	 * Is the query for a post or page preview?
       
  3674 	 *
       
  3675 	 * @since 3.1.0
       
  3676 	 *
       
  3677 	 * @return bool
       
  3678 	 */
       
  3679 	function is_preview() {
       
  3680 		return (bool) $this->is_preview;
       
  3681 	}
       
  3682 
       
  3683 	/**
       
  3684 	 * Is the query for the robots file?
       
  3685 	 *
       
  3686 	 * @since 3.1.0
       
  3687 	 *
       
  3688 	 * @return bool
       
  3689 	 */
       
  3690 	function is_robots() {
       
  3691 		return (bool) $this->is_robots;
       
  3692 	}
       
  3693 
       
  3694 	/**
       
  3695 	 * Is the query for a search?
       
  3696 	 *
       
  3697 	 * @since 3.1.0
       
  3698 	 *
       
  3699 	 * @return bool
       
  3700 	 */
       
  3701 	function is_search() {
       
  3702 		return (bool) $this->is_search;
       
  3703 	}
       
  3704 
       
  3705 	/**
       
  3706 	 * Is the query for an existing single post?
       
  3707 	 *
       
  3708 	 * Works for any post type, except attachments and pages
       
  3709 	 *
       
  3710 	 * If the $post parameter is specified, this function will additionally
       
  3711 	 * check if the query is for one of the Posts specified.
       
  3712 	 *
       
  3713 	 * @see WP_Query::is_page()
       
  3714 	 * @see WP_Query::is_singular()
       
  3715 	 *
       
  3716 	 * @since 3.1.0
       
  3717 	 *
       
  3718 	 * @param mixed $post Post ID, title, slug, or array of such.
       
  3719 	 * @return bool
       
  3720 	 */
       
  3721 	function is_single( $post = '' ) {
       
  3722 		if ( !$this->is_single )
       
  3723 			return false;
       
  3724 
       
  3725 		if ( empty($post) )
       
  3726 			return true;
       
  3727 
       
  3728 		$post_obj = $this->get_queried_object();
       
  3729 
       
  3730 		$post = (array) $post;
       
  3731 
       
  3732 		if ( in_array( $post_obj->ID, $post ) )
       
  3733 			return true;
       
  3734 		elseif ( in_array( $post_obj->post_title, $post ) )
       
  3735 			return true;
       
  3736 		elseif ( in_array( $post_obj->post_name, $post ) )
       
  3737 			return true;
       
  3738 
       
  3739 		return false;
       
  3740 	}
       
  3741 
       
  3742 	/**
       
  3743 	 * Is the query for an existing single post of any post type (post, attachment, page, ... )?
       
  3744 	 *
       
  3745 	 * If the $post_types parameter is specified, this function will additionally
       
  3746 	 * check if the query is for one of the Posts Types specified.
       
  3747 	 *
       
  3748 	 * @see WP_Query::is_page()
       
  3749 	 * @see WP_Query::is_single()
       
  3750 	 *
       
  3751 	 * @since 3.1.0
       
  3752 	 *
       
  3753 	 * @param mixed $post_types Optional. Post Type or array of Post Types
       
  3754 	 * @return bool
       
  3755 	 */
       
  3756 	function is_singular( $post_types = '' ) {
       
  3757 		if ( empty( $post_types ) || !$this->is_singular )
       
  3758 			return (bool) $this->is_singular;
       
  3759 
       
  3760 		$post_obj = $this->get_queried_object();
       
  3761 
       
  3762 		return in_array( $post_obj->post_type, (array) $post_types );
       
  3763 	}
       
  3764 
       
  3765 	/**
       
  3766 	 * Is the query for a specific time?
       
  3767 	 *
       
  3768 	 * @since 3.1.0
       
  3769 	 *
       
  3770 	 * @return bool
       
  3771 	 */
       
  3772 	function is_time() {
       
  3773 		return (bool) $this->is_time;
       
  3774 	}
       
  3775 
       
  3776 	/**
       
  3777 	 * Is the query for a trackback endpoint call?
       
  3778 	 *
       
  3779 	 * @since 3.1.0
       
  3780 	 *
       
  3781 	 * @return bool
       
  3782 	 */
       
  3783 	function is_trackback() {
       
  3784 		return (bool) $this->is_trackback;
       
  3785 	}
       
  3786 
       
  3787 	/**
       
  3788 	 * Is the query for an existing year archive?
       
  3789 	 *
       
  3790 	 * @since 3.1.0
       
  3791 	 *
       
  3792 	 * @return bool
       
  3793 	 */
       
  3794 	function is_year() {
       
  3795 		return (bool) $this->is_year;
       
  3796 	}
       
  3797 
       
  3798 	/**
       
  3799 	 * Is the query a 404 (returns no results)?
       
  3800 	 *
       
  3801 	 * @since 3.1.0
       
  3802 	 *
       
  3803 	 * @return bool
       
  3804 	 */
       
  3805 	function is_404() {
       
  3806 		return (bool) $this->is_404;
       
  3807 	}
       
  3808 
       
  3809 	/**
       
  3810 	 * Is the query the main query?
       
  3811 	 *
       
  3812 	 * @since 3.3.0
       
  3813 	 *
       
  3814 	 * @return bool
       
  3815 	 */
       
  3816 	function is_main_query() {
       
  3817 		global $wp_the_query;
       
  3818 		return $wp_the_query === $this;
       
  3819 	}
       
  3820 
       
  3821 	/**
       
  3822 	 * After looping through a nested query, this function
       
  3823 	 * restores the $post global to the current post in this query.
       
  3824 	 *
       
  3825 	 * @since 3.7.0
       
  3826 	 *
       
  3827 	 * @return bool
       
  3828 	 */
       
  3829 	function reset_postdata() {
       
  3830 		if ( ! empty( $this->post ) ) {
       
  3831 			$GLOBALS['post'] = $this->post;
       
  3832 			setup_postdata( $this->post );
       
  3833 		}
       
  3834 	}
       
  3835 }
       
  3836 
       
  3837 /**
       
  3838  * Redirect old slugs to the correct permalink.
       
  3839  *
       
  3840  * Attempts to find the current slug from the past slugs.
       
  3841  *
       
  3842  * @since 2.1.0
       
  3843  * @uses $wp_query
       
  3844  * @uses $wpdb
       
  3845  *
       
  3846  * @return null If no link is found, null is returned.
       
  3847  */
       
  3848 function wp_old_slug_redirect() {
       
  3849 	global $wp_query;
       
  3850 	if ( is_404() && '' != $wp_query->query_vars['name'] ) :
       
  3851 		global $wpdb;
       
  3852 
       
  3853 		// Guess the current post_type based on the query vars.
       
  3854 		if ( get_query_var('post_type') )
       
  3855 			$post_type = get_query_var('post_type');
       
  3856 		elseif ( !empty($wp_query->query_vars['pagename']) )
       
  3857 			$post_type = 'page';
       
  3858 		else
       
  3859 			$post_type = 'post';
       
  3860 
       
  3861 		if ( is_array( $post_type ) ) {
       
  3862 			if ( count( $post_type ) > 1 )
       
  3863 				return;
       
  3864 			$post_type = array_shift( $post_type );
       
  3865 		}
       
  3866 
       
  3867 		// Do not attempt redirect for hierarchical post types
       
  3868 		if ( is_post_type_hierarchical( $post_type ) )
       
  3869 			return;
       
  3870 
       
  3871 		$query = $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND post_type = %s AND meta_key = '_wp_old_slug' AND meta_value = %s", $post_type, $wp_query->query_vars['name']);
       
  3872 
       
  3873 		// if year, monthnum, or day have been specified, make our query more precise
       
  3874 		// just in case there are multiple identical _wp_old_slug values
       
  3875 		if ( '' != $wp_query->query_vars['year'] )
       
  3876 			$query .= $wpdb->prepare(" AND YEAR(post_date) = %d", $wp_query->query_vars['year']);
       
  3877 		if ( '' != $wp_query->query_vars['monthnum'] )
       
  3878 			$query .= $wpdb->prepare(" AND MONTH(post_date) = %d", $wp_query->query_vars['monthnum']);
       
  3879 		if ( '' != $wp_query->query_vars['day'] )
       
  3880 			$query .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", $wp_query->query_vars['day']);
       
  3881 
       
  3882 		$id = (int) $wpdb->get_var($query);
       
  3883 
       
  3884 		if ( ! $id )
       
  3885 			return;
       
  3886 
       
  3887 		$link = get_permalink($id);
       
  3888 
       
  3889 		if ( !$link )
       
  3890 			return;
       
  3891 
       
  3892 		wp_redirect( $link, 301 ); // Permanent redirect
       
  3893 		exit;
       
  3894 	endif;
       
  3895 }
       
  3896 
       
  3897 /**
       
  3898  * Set up global post data.
       
  3899  *
       
  3900  * @since 1.5.0
       
  3901  *
       
  3902  * @param object $post Post data.
       
  3903  * @uses do_action_ref_array() Calls 'the_post'
       
  3904  * @return bool True when finished.
       
  3905  */
       
  3906 function setup_postdata( $post ) {
       
  3907 	global $id, $authordata, $currentday, $currentmonth, $page, $pages, $multipage, $more, $numpages;
       
  3908 
       
  3909 	$id = (int) $post->ID;
       
  3910 
       
  3911 	$authordata = get_userdata($post->post_author);
       
  3912 
       
  3913 	$currentday = mysql2date('d.m.y', $post->post_date, false);
       
  3914 	$currentmonth = mysql2date('m', $post->post_date, false);
       
  3915 	$numpages = 1;
       
  3916 	$multipage = 0;
       
  3917 	$page = get_query_var('page');
       
  3918 	if ( ! $page )
       
  3919 		$page = 1;
       
  3920 	if ( is_single() || is_page() || is_feed() )
       
  3921 		$more = 1;
       
  3922 	$content = $post->post_content;
       
  3923 	if ( false !== strpos( $content, '<!--nextpage-->' ) ) {
       
  3924 		if ( $page > 1 )
       
  3925 			$more = 1;
       
  3926 		$content = str_replace( "\n<!--nextpage-->\n", '<!--nextpage-->', $content );
       
  3927 		$content = str_replace( "\n<!--nextpage-->", '<!--nextpage-->', $content );
       
  3928 		$content = str_replace( "<!--nextpage-->\n", '<!--nextpage-->', $content );
       
  3929 		// Ignore nextpage at the beginning of the content.
       
  3930 		if ( 0 === strpos( $content, '<!--nextpage-->' ) )
       
  3931 			$content = substr( $content, 15 );
       
  3932 		$pages = explode('<!--nextpage-->', $content);
       
  3933 		$numpages = count($pages);
       
  3934 		if ( $numpages > 1 )
       
  3935 			$multipage = 1;
       
  3936 	} else {
       
  3937 		$pages = array( $post->post_content );
       
  3938 	}
       
  3939 
       
  3940 	do_action_ref_array('the_post', array(&$post));
       
  3941 
       
  3942 	return true;
       
  3943 }