--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/ms-blogs.php Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,757 @@
+<?php
+
+/**
+ * Site/blog functions that work with the blogs table and related data.
+ *
+ * @package WordPress
+ * @subpackage Multisite
+ * @since MU
+ */
+
+/**
+ * Update the last_updated field for the current blog.
+ *
+ * @since MU
+ */
+function wpmu_update_blogs_date() {
+ global $wpdb;
+
+ update_blog_details( $wpdb->blogid, array('last_updated' => current_time('mysql', true)) );
+
+ do_action( 'wpmu_blog_updated', $wpdb->blogid );
+}
+
+/**
+ * Get a full blog URL, given a blog id.
+ *
+ * @since MU
+ *
+ * @param int $blog_id Blog ID
+ * @return string
+ */
+function get_blogaddress_by_id( $blog_id ) {
+ $bloginfo = get_blog_details( (int) $blog_id, false ); // only get bare details!
+ return esc_url( 'http://' . $bloginfo->domain . $bloginfo->path );
+}
+
+/**
+ * Get a full blog URL, given a blog name.
+ *
+ * @since MU
+ *
+ * @param string $blogname The (subdomain or directory) name
+ * @return string
+ */
+function get_blogaddress_by_name( $blogname ) {
+ if ( is_subdomain_install() ) {
+ if ( $blogname == 'main' )
+ $blogname = 'www';
+ $url = rtrim( network_home_url(), '/' );
+ if ( !empty( $blogname ) )
+ $url = preg_replace( '|^([^\.]+://)|', "\${1}" . $blogname . '.', $url );
+ } else {
+ $url = network_home_url( $blogname );
+ }
+ return esc_url( $url . '/' );
+}
+
+/**
+ * Given a blog's (subdomain or directory) slug, retrieve its id.
+ *
+ * @since MU
+ *
+ * @param string $slug
+ * @return int A blog id
+ */
+function get_id_from_blogname( $slug ) {
+ global $wpdb, $current_site;
+
+ $slug = trim( $slug, '/' );
+
+ $blog_id = wp_cache_get( 'get_id_from_blogname_' . $slug, 'blog-details' );
+ if ( $blog_id )
+ return $blog_id;
+
+ if ( is_subdomain_install() ) {
+ $domain = $slug . '.' . $current_site->domain;
+ $path = $current_site->path;
+ } else {
+ $domain = $current_site->domain;
+ $path = $current_site->path . $slug . '/';
+ }
+
+ $blog_id = $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM {$wpdb->blogs} WHERE domain = %s AND path = %s", $domain, $path) );
+ wp_cache_set( 'get_id_from_blogname_' . $slug, $blog_id, 'blog-details' );
+ return $blog_id;
+}
+
+/**
+ * Retrieve the details for a blog from the blogs table and blog options.
+ *
+ * @since MU
+ *
+ * @param int|string|array $fields A blog ID, a blog slug, or an array of fields to query against. Optional. If not specified the current blog ID is used.
+ * @param bool $get_all Whether to retrieve all details or only the details in the blogs table. Default is true.
+ * @return object Blog details.
+ */
+function get_blog_details( $fields = null, $get_all = true ) {
+ global $wpdb;
+
+ if ( is_array($fields ) ) {
+ if ( isset($fields['blog_id']) ) {
+ $blog_id = $fields['blog_id'];
+ } elseif ( isset($fields['domain']) && isset($fields['path']) ) {
+ $key = md5( $fields['domain'] . $fields['path'] );
+ $blog = wp_cache_get($key, 'blog-lookup');
+ if ( false !== $blog )
+ return $blog;
+ if ( substr( $fields['domain'], 0, 4 ) == 'www.' ) {
+ $nowww = substr( $fields['domain'], 4 );
+ $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) AND path = %s ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'], $fields['path'] ) );
+ } else {
+ $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $fields['domain'], $fields['path'] ) );
+ }
+ if ( $blog ) {
+ wp_cache_set($blog->blog_id . 'short', $blog, 'blog-details');
+ $blog_id = $blog->blog_id;
+ } else {
+ return false;
+ }
+ } elseif ( isset($fields['domain']) && is_subdomain_install() ) {
+ $key = md5( $fields['domain'] );
+ $blog = wp_cache_get($key, 'blog-lookup');
+ if ( false !== $blog )
+ return $blog;
+ if ( substr( $fields['domain'], 0, 4 ) == 'www.' ) {
+ $nowww = substr( $fields['domain'], 4 );
+ $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'] ) );
+ } else {
+ $blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $fields['domain'] ) );
+ }
+ if ( $blog ) {
+ wp_cache_set($blog->blog_id . 'short', $blog, 'blog-details');
+ $blog_id = $blog->blog_id;
+ } else {
+ return false;
+ }
+ } else {
+ return false;
+ }
+ } else {
+ if ( ! $fields )
+ $blog_id = get_current_blog_id();
+ elseif ( ! is_numeric( $fields ) )
+ $blog_id = get_id_from_blogname( $fields );
+ else
+ $blog_id = $fields;
+ }
+
+ $blog_id = (int) $blog_id;
+
+ $all = $get_all == true ? '' : 'short';
+ $details = wp_cache_get( $blog_id . $all, 'blog-details' );
+
+ if ( $details ) {
+ if ( ! is_object( $details ) ) {
+ if ( $details == -1 ) {
+ return false;
+ } else {
+ // Clear old pre-serialized objects. Cache clients do better with that.
+ wp_cache_delete( $blog_id . $all, 'blog-details' );
+ unset($details);
+ }
+ } else {
+ return $details;
+ }
+ }
+
+ // Try the other cache.
+ if ( $get_all ) {
+ $details = wp_cache_get( $blog_id . 'short', 'blog-details' );
+ } else {
+ $details = wp_cache_get( $blog_id, 'blog-details' );
+ // If short was requested and full cache is set, we can return.
+ if ( $details ) {
+ if ( ! is_object( $details ) ) {
+ if ( $details == -1 ) {
+ return false;
+ } else {
+ // Clear old pre-serialized objects. Cache clients do better with that.
+ wp_cache_delete( $blog_id, 'blog-details' );
+ unset($details);
+ }
+ } else {
+ return $details;
+ }
+ }
+ }
+
+ if ( empty($details) ) {
+ $details = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE blog_id = %d /* get_blog_details */", $blog_id ) );
+ if ( ! $details ) {
+ // Set the full cache.
+ wp_cache_set( $blog_id, -1, 'blog-details' );
+ return false;
+ }
+ }
+
+ if ( ! $get_all ) {
+ wp_cache_set( $blog_id . $all, $details, 'blog-details' );
+ return $details;
+ }
+
+ switch_to_blog( $blog_id );
+ $details->blogname = get_option( 'blogname' );
+ $details->siteurl = get_option( 'siteurl' );
+ $details->post_count = get_option( 'post_count' );
+ restore_current_blog();
+
+ $details = apply_filters( 'blog_details', $details );
+
+ wp_cache_set( $blog_id . $all, $details, 'blog-details' );
+
+ $key = md5( $details->domain . $details->path );
+ wp_cache_set( $key, $details, 'blog-lookup' );
+
+ return $details;
+}
+
+/**
+ * Clear the blog details cache.
+ *
+ * @since MU
+ *
+ * @param int $blog_id Blog ID
+ */
+function refresh_blog_details( $blog_id ) {
+ $blog_id = (int) $blog_id;
+ $details = get_blog_details( $blog_id, false );
+ if ( ! $details ) {
+ // Make sure clean_blog_cache() gets the blog ID
+ // when the blog has been previously cached as
+ // non-existent.
+ $details = (object) array(
+ 'blog_id' => $blog_id,
+ 'domain' => null,
+ 'path' => null
+ );
+ }
+
+ clean_blog_cache( $details );
+
+ do_action( 'refresh_blog_details', $blog_id );
+}
+
+/**
+ * Update the details for a blog. Updates the blogs table for a given blog id.
+ *
+ * @since MU
+ *
+ * @param int $blog_id Blog ID
+ * @param array $details Array of details keyed by blogs table field names.
+ * @return bool True if update succeeds, false otherwise.
+ */
+function update_blog_details( $blog_id, $details = array() ) {
+ global $wpdb;
+
+ if ( empty($details) )
+ return false;
+
+ if ( is_object($details) )
+ $details = get_object_vars($details);
+
+ $current_details = get_blog_details($blog_id, false);
+ if ( empty($current_details) )
+ return false;
+
+ $current_details = get_object_vars($current_details);
+
+ $details = array_merge($current_details, $details);
+ $details['last_updated'] = current_time('mysql', true);
+
+ $update_details = array();
+ $fields = array( 'site_id', 'domain', 'path', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id');
+ foreach ( array_intersect( array_keys( $details ), $fields ) as $field )
+ $update_details[$field] = $details[$field];
+
+ $result = $wpdb->update( $wpdb->blogs, $update_details, array('blog_id' => $blog_id) );
+
+ if ( false === $result )
+ return false;
+
+ // If spam status changed, issue actions.
+ if ( $details[ 'spam' ] != $current_details[ 'spam' ] ) {
+ if ( $details[ 'spam' ] == 1 )
+ do_action( 'make_spam_blog', $blog_id );
+ else
+ do_action( 'make_ham_blog', $blog_id );
+ }
+
+ // If mature status changed, issue actions.
+ if ( $details[ 'mature' ] != $current_details[ 'mature' ] ) {
+ if ( $details[ 'mature' ] == 1 )
+ do_action( 'mature_blog', $blog_id );
+ else
+ do_action( 'unmature_blog', $blog_id );
+ }
+
+ // If archived status changed, issue actions.
+ if ( $details[ 'archived' ] != $current_details[ 'archived' ] ) {
+ if ( $details[ 'archived' ] == 1 )
+ do_action( 'archive_blog', $blog_id );
+ else
+ do_action( 'unarchive_blog', $blog_id );
+ }
+
+ // If deleted status changed, issue actions.
+ if ( $details[ 'deleted' ] != $current_details[ 'deleted' ] ) {
+ if ( $details[ 'deleted' ] == 1 )
+ do_action( 'make_delete_blog', $blog_id );
+ else
+ do_action( 'make_undelete_blog', $blog_id );
+ }
+
+ if ( isset( $details[ 'public' ] ) ) {
+ switch_to_blog( $blog_id );
+ update_option( 'blog_public', $details[ 'public' ] );
+ restore_current_blog();
+ }
+
+ refresh_blog_details($blog_id);
+
+ return true;
+}
+
+/**
+ * Clean the blog cache
+ *
+ * @since 3.5.0
+ *
+ * @param stdClass $blog The blog details as returned from get_blog_details()
+ */
+function clean_blog_cache( $blog ) {
+ $blog_id = $blog->blog_id;
+ $domain_path_key = md5( $blog->domain . $blog->path );
+
+ wp_cache_delete( $blog_id , 'blog-details' );
+ wp_cache_delete( $blog_id . 'short' , 'blog-details' );
+ wp_cache_delete( $domain_path_key, 'blog-lookup' );
+ wp_cache_delete( 'current_blog_' . $blog->domain, 'site-options' );
+ wp_cache_delete( 'current_blog_' . $blog->domain . $blog->path, 'site-options' );
+ wp_cache_delete( 'get_id_from_blogname_' . trim( $blog->path, '/' ), 'blog-details' );
+ wp_cache_delete( $domain_path_key, 'blog-id-cache' );
+}
+
+/**
+ * Retrieve option value for a given blog id based on name of option.
+ *
+ * If the option does not exist or does not have a value, then the return value
+ * will be false. This is useful to check whether you need to install an option
+ * and is commonly used during installation of plugin options and to test
+ * whether upgrading is required.
+ *
+ * If the option was serialized then it will be unserialized when it is returned.
+ *
+ * @since MU
+ *
+ * @param int $id A blog ID. Can be null to refer to the current blog.
+ * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
+ * @param mixed $default Optional. Default value to return if the option does not exist.
+ * @return mixed Value set for the option.
+ */
+function get_blog_option( $id, $option, $default = false ) {
+ $id = (int) $id;
+
+ if ( empty( $id ) )
+ $id = get_current_blog_id();
+
+ if ( get_current_blog_id() == $id )
+ return get_option( $option, $default );
+
+ switch_to_blog( $id );
+ $value = get_option( $option, $default );
+ restore_current_blog();
+
+ return apply_filters( 'blog_option_' . $option, $value, $id );
+}
+
+/**
+ * Add a new option for a given blog id.
+ *
+ * You do not need to serialize values. If the value needs to be serialized, then
+ * it will be serialized before it is inserted into the database. Remember,
+ * resources can not be serialized or added as an option.
+ *
+ * You can create options without values and then update the values later.
+ * Existing options will not be updated and checks are performed to ensure that you
+ * aren't adding a protected WordPress option. Care should be taken to not name
+ * options the same as the ones which are protected.
+ *
+ * @since MU
+ *
+ * @param int $id A blog ID. Can be null to refer to the current blog.
+ * @param string $option Name of option to add. Expected to not be SQL-escaped.
+ * @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.
+ * @return bool False if option was not added and true if option was added.
+ */
+function add_blog_option( $id, $option, $value ) {
+ $id = (int) $id;
+
+ if ( empty( $id ) )
+ $id = get_current_blog_id();
+
+ if ( get_current_blog_id() == $id )
+ return add_option( $option, $value );
+
+ switch_to_blog( $id );
+ $return = add_option( $option, $value );
+ restore_current_blog();
+
+ return $return;
+}
+
+/**
+ * Removes option by name for a given blog id. Prevents removal of protected WordPress options.
+ *
+ * @since MU
+ *
+ * @param int $id A blog ID. Can be null to refer to the current blog.
+ * @param string $option Name of option to remove. Expected to not be SQL-escaped.
+ * @return bool True, if option is successfully deleted. False on failure.
+ */
+function delete_blog_option( $id, $option ) {
+ $id = (int) $id;
+
+ if ( empty( $id ) )
+ $id = get_current_blog_id();
+
+ if ( get_current_blog_id() == $id )
+ return delete_option( $option );
+
+ switch_to_blog( $id );
+ $return = delete_option( $option );
+ restore_current_blog();
+
+ return $return;
+}
+
+/**
+ * Update an option for a particular blog.
+ *
+ * @since MU
+ *
+ * @param int $id The blog id
+ * @param string $option The option key
+ * @param mixed $value The option value
+ * @return bool True on success, false on failure.
+ */
+function update_blog_option( $id, $option, $value, $deprecated = null ) {
+ $id = (int) $id;
+
+ if ( null !== $deprecated )
+ _deprecated_argument( __FUNCTION__, '3.1' );
+
+ if ( get_current_blog_id() == $id )
+ return update_option( $option, $value );
+
+ switch_to_blog( $id );
+ $return = update_option( $option, $value );
+ restore_current_blog();
+
+ refresh_blog_details( $id );
+
+ return $return;
+}
+
+/**
+ * Switch the current blog.
+ *
+ * This function is useful if you need to pull posts, or other information,
+ * from other blogs. You can switch back afterwards using restore_current_blog().
+ *
+ * Things that aren't switched:
+ * - autoloaded options. See #14992
+ * - plugins. See #14941
+ *
+ * @see restore_current_blog()
+ * @since MU
+ *
+ * @param int $new_blog The id of the blog you want to switch to. Default: current blog
+ * @param bool $deprecated Deprecated argument
+ * @return bool True on success, false if the validation failed
+ */
+function switch_to_blog( $new_blog, $deprecated = null ) {
+ global $wpdb, $wp_roles;
+
+ if ( empty( $new_blog ) )
+ $new_blog = $GLOBALS['blog_id'];
+
+ $GLOBALS['_wp_switched_stack'][] = $GLOBALS['blog_id'];
+
+ /* If we're switching to the same blog id that we're on,
+ * set the right vars, do the associated actions, but skip
+ * the extra unnecessary work */
+ if ( $new_blog == $GLOBALS['blog_id'] ) {
+ do_action( 'switch_blog', $new_blog, $new_blog );
+ $GLOBALS['switched'] = true;
+ return true;
+ }
+
+ $wpdb->set_blog_id( $new_blog );
+ $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+ $prev_blog_id = $GLOBALS['blog_id'];
+ $GLOBALS['blog_id'] = $new_blog;
+
+ if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
+ wp_cache_switch_to_blog( $new_blog );
+ } else {
+ global $wp_object_cache;
+
+ if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) )
+ $global_groups = $wp_object_cache->global_groups;
+ else
+ $global_groups = false;
+
+ wp_cache_init();
+
+ if ( function_exists( 'wp_cache_add_global_groups' ) ) {
+ if ( is_array( $global_groups ) )
+ wp_cache_add_global_groups( $global_groups );
+ else
+ wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'global-posts', ' blog-id-cache' ) );
+ wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) );
+ }
+ }
+
+ if ( did_action( 'init' ) ) {
+ $wp_roles->reinit();
+ $current_user = wp_get_current_user();
+ $current_user->for_blog( $new_blog );
+ }
+
+ do_action( 'switch_blog', $new_blog, $prev_blog_id );
+ $GLOBALS['switched'] = true;
+
+ return true;
+}
+
+/**
+ * Restore the current blog, after calling switch_to_blog()
+ *
+ * @see switch_to_blog()
+ * @since MU
+ *
+ * @return bool True on success, false if we're already on the current blog
+ */
+function restore_current_blog() {
+ global $wpdb, $wp_roles;
+
+ if ( empty( $GLOBALS['_wp_switched_stack'] ) )
+ return false;
+
+ $blog = array_pop( $GLOBALS['_wp_switched_stack'] );
+
+ if ( $GLOBALS['blog_id'] == $blog ) {
+ do_action( 'switch_blog', $blog, $blog );
+ // If we still have items in the switched stack, consider ourselves still 'switched'
+ $GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );
+ return true;
+ }
+
+ $wpdb->set_blog_id( $blog );
+ $prev_blog_id = $GLOBALS['blog_id'];
+ $GLOBALS['blog_id'] = $blog;
+ $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+
+ if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
+ wp_cache_switch_to_blog( $blog );
+ } else {
+ global $wp_object_cache;
+
+ if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) )
+ $global_groups = $wp_object_cache->global_groups;
+ else
+ $global_groups = false;
+
+ wp_cache_init();
+
+ if ( function_exists( 'wp_cache_add_global_groups' ) ) {
+ if ( is_array( $global_groups ) )
+ wp_cache_add_global_groups( $global_groups );
+ else
+ wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'global-posts', ' blog-id-cache' ) );
+ wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) );
+ }
+ }
+
+ if ( did_action( 'init' ) ) {
+ $wp_roles->reinit();
+ $current_user = wp_get_current_user();
+ $current_user->for_blog( $blog );
+ }
+
+ do_action( 'switch_blog', $blog, $prev_blog_id );
+
+ // If we still have items in the switched stack, consider ourselves still 'switched'
+ $GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );
+
+ return true;
+}
+
+/**
+ * Determines if switch_to_blog() is in effect
+ *
+ * @since 3.5.0
+ *
+ * @return bool True if switched, false otherwise.
+ */
+function ms_is_switched() {
+ return ! empty( $GLOBALS['_wp_switched_stack'] );
+}
+
+/**
+ * Check if a particular blog is archived.
+ *
+ * @since MU
+ *
+ * @param int $id The blog id
+ * @return string Whether the blog is archived or not
+ */
+function is_archived( $id ) {
+ return get_blog_status($id, 'archived');
+}
+
+/**
+ * Update the 'archived' status of a particular blog.
+ *
+ * @since MU
+ *
+ * @param int $id The blog id
+ * @param string $archived The new status
+ * @return string $archived
+ */
+function update_archived( $id, $archived ) {
+ update_blog_status($id, 'archived', $archived);
+ return $archived;
+}
+
+/**
+ * Update a blog details field.
+ *
+ * @since MU
+ *
+ * @param int $blog_id BLog ID
+ * @param string $pref A field name
+ * @param string $value Value for $pref
+ * @return string $value
+ */
+function update_blog_status( $blog_id, $pref, $value, $deprecated = null ) {
+ global $wpdb;
+
+ if ( null !== $deprecated )
+ _deprecated_argument( __FUNCTION__, '3.1' );
+
+ if ( ! in_array( $pref, array( 'site_id', 'domain', 'path', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id') ) )
+ return $value;
+
+ $result = $wpdb->update( $wpdb->blogs, array($pref => $value, 'last_updated' => current_time('mysql', true)), array('blog_id' => $blog_id) );
+
+ if ( false === $result )
+ return false;
+
+ refresh_blog_details( $blog_id );
+
+ if ( 'spam' == $pref )
+ ( $value == 1 ) ? do_action( 'make_spam_blog', $blog_id ) : do_action( 'make_ham_blog', $blog_id );
+ elseif ( 'mature' == $pref )
+ ( $value == 1 ) ? do_action( 'mature_blog', $blog_id ) : do_action( 'unmature_blog', $blog_id );
+ elseif ( 'archived' == $pref )
+ ( $value == 1 ) ? do_action( 'archive_blog', $blog_id ) : do_action( 'unarchive_blog', $blog_id );
+ elseif ( 'deleted' == $pref )
+ ( $value == 1 ) ? do_action( 'make_delete_blog', $blog_id ) : do_action( 'make_undelete_blog', $blog_id );
+ elseif ( 'public' == $pref )
+ do_action( 'update_blog_public', $blog_id, $value ); // Moved here from update_blog_public().
+
+ return $value;
+}
+
+/**
+ * Get a blog details field.
+ *
+ * @since MU
+ *
+ * @param int $id The blog id
+ * @param string $pref A field name
+ * @return bool $value
+ */
+function get_blog_status( $id, $pref ) {
+ global $wpdb;
+
+ $details = get_blog_details( $id, false );
+ if ( $details )
+ return $details->$pref;
+
+ return $wpdb->get_var( $wpdb->prepare("SELECT %s FROM {$wpdb->blogs} WHERE blog_id = %d", $pref, $id) );
+}
+
+/**
+ * Get a list of most recently updated blogs.
+ *
+ * @since MU
+ *
+ * @param mixed $deprecated Not used
+ * @param int $start The offset
+ * @param int $quantity The maximum number of blogs to retrieve. Default is 40.
+ * @return array The list of blogs
+ */
+function get_last_updated( $deprecated = '', $start = 0, $quantity = 40 ) {
+ global $wpdb;
+
+ if ( ! empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, 'MU' ); // never used
+
+ return $wpdb->get_results( $wpdb->prepare("SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' AND last_updated != '0000-00-00 00:00:00' ORDER BY last_updated DESC limit %d, %d", $wpdb->siteid, $start, $quantity ) , ARRAY_A );
+}
+
+/**
+ * Handler for updating the blog date when a post is published or an already published post is changed.
+ *
+ * @since 3.3.0
+ *
+ * @param string $new_status The new post status
+ * @param string $old_status The old post status
+ * @param object $post Post object
+ */
+function _update_blog_date_on_post_publish( $new_status, $old_status, $post ) {
+ $post_type_obj = get_post_type_object( $post->post_type );
+ if ( ! $post_type_obj->public )
+ return;
+
+ if ( 'publish' != $new_status && 'publish' != $old_status )
+ return;
+
+ // Post was freshly published, published post was saved, or published post was unpublished.
+
+ wpmu_update_blogs_date();
+}
+
+/**
+ * Handler for updating the blog date when a published post is deleted.
+ *
+ * @since 3.4.0
+ *
+ * @param int $post_id Post ID
+ */
+function _update_blog_date_on_post_delete( $post_id ) {
+ $post = get_post( $post_id );
+
+ $post_type_obj = get_post_type_object( $post->post_type );
+ if ( ! $post_type_obj->public )
+ return;
+
+ if ( 'publish' != $post->post_status )
+ return;
+
+ wpmu_update_blogs_date();
+}
+