--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-includes/wp-db.php Wed Dec 23 17:55:33 2009 +0000
@@ -0,0 +1,1113 @@
+<?php
+/**
+ * WordPress DB Class
+ *
+ * Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)}
+ *
+ * @package WordPress
+ * @subpackage Database
+ * @since 0.71
+ */
+
+/**
+ * @since 0.71
+ */
+define('EZSQL_VERSION', 'WP1.25');
+
+/**
+ * @since 0.71
+ */
+define('OBJECT', 'OBJECT', true);
+
+/**
+ * @since {@internal Version Unknown}}
+ */
+define('OBJECT_K', 'OBJECT_K', false);
+
+/**
+ * @since 0.71
+ */
+define('ARRAY_A', 'ARRAY_A', false);
+
+/**
+ * @since 0.71
+ */
+define('ARRAY_N', 'ARRAY_N', false);
+
+/**
+ * WordPress Database Access Abstraction Object
+ *
+ * It is possible to replace this class with your own
+ * by setting the $wpdb global variable in wp-content/db.php
+ * file with your class. You can name it wpdb also, since
+ * this file will not be included, if the other file is
+ * available.
+ *
+ * @link http://codex.wordpress.org/Function_Reference/wpdb_Class
+ *
+ * @package WordPress
+ * @subpackage Database
+ * @since 0.71
+ * @final
+ */
+class wpdb {
+
+ /**
+ * Whether to show SQL/DB errors
+ *
+ * @since 0.71
+ * @access private
+ * @var bool
+ */
+ var $show_errors = false;
+
+ /**
+ * Whether to suppress errors during the DB bootstrapping.
+ *
+ * @access private
+ * @since {@internal Version Unknown}}
+ * @var bool
+ */
+ var $suppress_errors = false;
+
+ /**
+ * The last error during query.
+ *
+ * @since {@internal Version Unknown}}
+ * @var string
+ */
+ var $last_error = '';
+
+ /**
+ * Amount of queries made
+ *
+ * @since 1.2.0
+ * @access private
+ * @var int
+ */
+ var $num_queries = 0;
+
+ /**
+ * Saved result of the last query made
+ *
+ * @since 1.2.0
+ * @access private
+ * @var array
+ */
+ var $last_query;
+
+ /**
+ * Saved info on the table column
+ *
+ * @since 1.2.0
+ * @access private
+ * @var array
+ */
+ var $col_info;
+
+ /**
+ * Saved queries that were executed
+ *
+ * @since 1.5.0
+ * @access private
+ * @var array
+ */
+ var $queries;
+
+ /**
+ * WordPress table prefix
+ *
+ * You can set this to have multiple WordPress installations
+ * in a single database. The second reason is for possible
+ * security precautions.
+ *
+ * @since 0.71
+ * @access private
+ * @var string
+ */
+ var $prefix = '';
+
+ /**
+ * Whether the database queries are ready to start executing.
+ *
+ * @since 2.5.0
+ * @access private
+ * @var bool
+ */
+ var $ready = false;
+
+ /**
+ * WordPress Posts table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $posts;
+
+ /**
+ * WordPress Users table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $users;
+
+ /**
+ * WordPress Categories table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $categories;
+
+ /**
+ * WordPress Post to Category table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $post2cat;
+
+ /**
+ * WordPress Comments table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $comments;
+
+ /**
+ * WordPress Links table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $links;
+
+ /**
+ * WordPress Options table
+ *
+ * @since 1.5.0
+ * @access public
+ * @var string
+ */
+ var $options;
+
+ /**
+ * WordPress Post Metadata table
+ *
+ * @since {@internal Version Unknown}}
+ * @access public
+ * @var string
+ */
+ var $postmeta;
+
+ /**
+ * WordPress User Metadata table
+ *
+ * @since 2.3.0
+ * @access public
+ * @var string
+ */
+ var $usermeta;
+
+ /**
+ * WordPress Terms table
+ *
+ * @since 2.3.0
+ * @access public
+ * @var string
+ */
+ var $terms;
+
+ /**
+ * WordPress Term Taxonomy table
+ *
+ * @since 2.3.0
+ * @access public
+ * @var string
+ */
+ var $term_taxonomy;
+
+ /**
+ * WordPress Term Relationships table
+ *
+ * @since 2.3.0
+ * @access public
+ * @var string
+ */
+ var $term_relationships;
+
+ /**
+ * List of WordPress tables
+ *
+ * @since {@internal Version Unknown}}
+ * @access private
+ * @var array
+ */
+ var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options',
+ 'postmeta', 'terms', 'term_taxonomy', 'term_relationships');
+
+ /**
+ * Format specifiers for DB columns. Columns not listed here default to %s. Initialized in wp-settings.php.
+ *
+ * Keys are colmn names, values are format types: 'ID' => '%d'
+ *
+ * @since 2.8.0
+ * @see wpdb:prepare()
+ * @see wpdb:insert()
+ * @see wpdb:update()
+ * @access public
+ * @war array
+ */
+ var $field_types = array();
+
+ /**
+ * Database table columns charset
+ *
+ * @since 2.2.0
+ * @access public
+ * @var string
+ */
+ var $charset;
+
+ /**
+ * Database table columns collate
+ *
+ * @since 2.2.0
+ * @access public
+ * @var string
+ */
+ var $collate;
+
+ /**
+ * Whether to use mysql_real_escape_string
+ *
+ * @since 2.8.0
+ * @access public
+ * @var bool
+ */
+ var $real_escape = false;
+
+ /**
+ * Connects to the database server and selects a database
+ *
+ * PHP4 compatibility layer for calling the PHP5 constructor.
+ *
+ * @uses wpdb::__construct() Passes parameters and returns result
+ * @since 0.71
+ *
+ * @param string $dbuser MySQL database user
+ * @param string $dbpassword MySQL database password
+ * @param string $dbname MySQL database name
+ * @param string $dbhost MySQL database host
+ */
+ function wpdb($dbuser, $dbpassword, $dbname, $dbhost) {
+ return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost);
+ }
+
+ /**
+ * Connects to the database server and selects a database
+ *
+ * PHP5 style constructor for compatibility with PHP5. Does
+ * the actual setting up of the class properties and connection
+ * to the database.
+ *
+ * @since 2.0.8
+ *
+ * @param string $dbuser MySQL database user
+ * @param string $dbpassword MySQL database password
+ * @param string $dbname MySQL database name
+ * @param string $dbhost MySQL database host
+ */
+ function __construct($dbuser, $dbpassword, $dbname, $dbhost) {
+ register_shutdown_function(array(&$this, "__destruct"));
+
+ if ( defined('WP_DEBUG') and WP_DEBUG == true )
+ $this->show_errors();
+
+ if ( defined('DB_CHARSET') )
+ $this->charset = DB_CHARSET;
+
+ if ( defined('DB_COLLATE') )
+ $this->collate = DB_COLLATE;
+
+ $this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword, true);
+ if (!$this->dbh) {
+ $this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/'
+<h1>Erreur lors de l’établissement de la connexion à la base de données</h1>
+<p>Cela signifie soit que l’identifiant et/ou le mot de passe indiqués dans votre fichier <code>wp-config.php</code> sont incorrects, ou que le serveur de base de données à l’adresse <code>%s</code> est inaccessible - ce qui implique que le serveur de base de données de votre hébergeur est sans doute défaillant.</p>
+<ul>
+ <li>Êtes-vous certain(e) d’avoir correctement indiqué votre identifiant et votre mot de passe ?</li>
+ <li>Êtes-vous certain(e) d’avoir entré le bon serveur de base de données ?</li>
+ <li>Êtes-vous certain(e) que le serveur de base de données fonctionne correctement ?</li>
+</ul>
+<p>Si vous n’êtes pas sûr(e) de bien comprendre les mots de cette liste, vous devriez sans doute prendre contact avec votre hébergeur. Si malgré cela cette erreur s’affiche toujours, indiquez votre problème au <a href=\'http://www.wordpress-fr.net/support/\'>forum d’entraide en français</a>.</p>
+'/*/WP_I18N_DB_CONN_ERROR*/, $dbhost));
+ return;
+ }
+
+ $this->ready = true;
+
+ if ( $this->has_cap( 'collation' ) ) {
+ if ( !empty($this->charset) ) {
+ if ( function_exists('mysql_set_charset') ) {
+ mysql_set_charset($this->charset, $this->dbh);
+ $this->real_escape = true;
+ } else {
+ $collation_query = "SET NAMES '{$this->charset}'";
+ if ( !empty($this->collate) )
+ $collation_query .= " COLLATE '{$this->collate}'";
+ $this->query($collation_query);
+ }
+ }
+ }
+
+ $this->select($dbname);
+ }
+
+ /**
+ * PHP5 style destructor and will run when database object is destroyed.
+ *
+ * @since 2.0.8
+ *
+ * @return bool Always true
+ */
+ function __destruct() {
+ return true;
+ }
+
+ /**
+ * Sets the table prefix for the WordPress tables.
+ *
+ * Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
+ * override the WordPress users and usersmeta tables that would otherwise be determined by the $prefix.
+ *
+ * @since 2.5.0
+ *
+ * @param string $prefix Alphanumeric name for the new prefix.
+ * @return string|WP_Error Old prefix or WP_Error on error
+ */
+ function set_prefix($prefix) {
+
+ if ( preg_match('|[^a-z0-9_]|i', $prefix) )
+ return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Préfixe de la base de données invalide'/*/WP_I18N_DB_BAD_PREFIX*/);
+
+ $old_prefix = $this->prefix;
+ $this->prefix = $prefix;
+
+ foreach ( (array) $this->tables as $table )
+ $this->$table = $this->prefix . $table;
+
+ if ( defined('CUSTOM_USER_TABLE') )
+ $this->users = CUSTOM_USER_TABLE;
+
+ if ( defined('CUSTOM_USER_META_TABLE') )
+ $this->usermeta = CUSTOM_USER_META_TABLE;
+
+ return $old_prefix;
+ }
+
+ /**
+ * Selects a database using the current database connection.
+ *
+ * The database name will be changed based on the current database
+ * connection. On failure, the execution will bail and display an DB error.
+ *
+ * @since 0.71
+ *
+ * @param string $db MySQL database name
+ * @return null Always null.
+ */
+ function select($db) {
+ if (!@mysql_select_db($db, $this->dbh)) {
+ $this->ready = false;
+ $this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/'
+<h1>Impossible de sélectionner la base de données</h1>
+<p>La connexion au serveur de base de données s’est bien faite (donc votre identifiant et votre mot de passe sont les bons), mais la base de données <code>%1$s</code> n’a pas pu être sélectionnée.</p>
+<ul>
+<li>Êtes-vous certain(e) qu’elle existe ?</li>
+<li>L’utilisateur <code>%2$s</code> a-t-il les droits pour utiliser la base de donné <code>%1$s</code> ?</li>
+<li>Sur certains systèmes, le nom de votre base de données est préfixée de votre identifiant, donc son nom complet peut être <code>identifiant_nomdelabase</code>. Cela peut-il être la cause du problème&nbps;?</li>
+</ul>
+<p>Si vous ne savez pas comment régler votre base de données, vous devriez <strong>prendre contact avec votre hébergeur</strong>. Si toutes vos tentatives échouent, peut-être trouverez-vous une réponse sur le <a href=\'http://www.wordpress-fr.net/support/\'>forum d’entraide en français</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, DB_USER));
+ return;
+ }
+ }
+
+ function _weak_escape($string) {
+ return addslashes($string);
+ }
+
+ function _real_escape($string) {
+ if ( $this->dbh && $this->real_escape )
+ return mysql_real_escape_string( $string, $this->dbh );
+ else
+ return addslashes( $string );
+ }
+
+ function _escape($data) {
+ if ( is_array($data) ) {
+ foreach ( (array) $data as $k => $v ) {
+ if ( is_array($v) )
+ $data[$k] = $this->_escape( $v );
+ else
+ $data[$k] = $this->_real_escape( $v );
+ }
+ } else {
+ $data = $this->_real_escape( $data );
+ }
+
+ return $data;
+ }
+
+ /**
+ * Escapes content for insertion into the database using addslashes(), for security
+ *
+ * @since 0.71
+ *
+ * @param string|array $data
+ * @return string query safe string
+ */
+ function escape($data) {
+ if ( is_array($data) ) {
+ foreach ( (array) $data as $k => $v ) {
+ if ( is_array($v) )
+ $data[$k] = $this->escape( $v );
+ else
+ $data[$k] = $this->_weak_escape( $v );
+ }
+ } else {
+ $data = $this->_weak_escape( $data );
+ }
+
+ return $data;
+ }
+
+ /**
+ * Escapes content by reference for insertion into the database, for security
+ *
+ * @since 2.3.0
+ *
+ * @param string $s
+ */
+ function escape_by_ref(&$string) {
+ $string = $this->_real_escape( $string );
+ }
+
+ /**
+ * Prepares a SQL query for safe execution. Uses sprintf()-like syntax.
+ *
+ * This function only supports a small subset of the sprintf syntax; it only supports %d (decimal number), %s (string).
+ * Does not support sign, padding, alignment, width or precision specifiers.
+ * Does not support argument numbering/swapping.
+ *
+ * May be called like {@link http://php.net/sprintf sprintf()} or like {@link http://php.net/vsprintf vsprintf()}.
+ *
+ * Both %d and %s should be left unquoted in the query string.
+ *
+ * <code>
+ * wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", "foo", 1337 )
+ * </code>
+ *
+ * @link http://php.net/sprintf Description of syntax.
+ * @since 2.3.0
+ *
+ * @param string $query Query statement with sprintf()-like placeholders
+ * @param array|mixed $args The array of variables to substitute into the query's placeholders if being called like {@link http://php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}.
+ * @param mixed $args,... further variables to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}.
+ * @return null|string Sanitized query string
+ */
+ function prepare($query = null) { // ( $query, *$args )
+ if ( is_null( $query ) )
+ return;
+ $args = func_get_args();
+ array_shift($args);
+ // If args were passed as an array (as in vsprintf), move them up
+ if ( isset($args[0]) && is_array($args[0]) )
+ $args = $args[0];
+ $query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it
+ $query = str_replace('"%s"', '%s', $query); // doublequote unquoting
+ $query = str_replace('%s', "'%s'", $query); // quote the strings
+ array_walk($args, array(&$this, 'escape_by_ref'));
+ return @vsprintf($query, $args);
+ }
+
+ /**
+ * Print SQL/DB error.
+ *
+ * @since 0.71
+ * @global array $EZSQL_ERROR Stores error information of query and error string
+ *
+ * @param string $str The error to display
+ * @return bool False if the showing of errors is disabled.
+ */
+ function print_error($str = '') {
+ global $EZSQL_ERROR;
+
+ if (!$str) $str = mysql_error($this->dbh);
+ $EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str);
+
+ if ( $this->suppress_errors )
+ return false;
+
+ if ( $caller = $this->get_caller() )
+ $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'Erreur de la base de données WordPress %1$s pour la requête %2$s faite par %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller);
+ else
+ $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'Erreur de la base de données WordPress %1$s pour la requête %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query);
+
+ $log_error = true;
+ if ( ! function_exists('error_log') )
+ $log_error = false;
+
+ $log_file = @ini_get('error_log');
+ if ( !empty($log_file) && ('syslog' != $log_file) && !@is_writable($log_file) )
+ $log_error = false;
+
+ if ( $log_error )
+ @error_log($error_str, 0);
+
+ // Is error output turned on or not..
+ if ( !$this->show_errors )
+ return false;
+
+ $str = htmlspecialchars($str, ENT_QUOTES);
+ $query = htmlspecialchars($this->last_query, ENT_QUOTES);
+
+ // If there is an error then take note of it
+ print "<div id='error'>
+ <p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br />
+ <code>$query</code></p>
+ </div>";
+ }
+
+ /**
+ * Enables showing of database errors.
+ *
+ * This function should be used only to enable showing of errors.
+ * wpdb::hide_errors() should be used instead for hiding of errors. However,
+ * this function can be used to enable and disable showing of database
+ * errors.
+ *
+ * @since 0.71
+ *
+ * @param bool $show Whether to show or hide errors
+ * @return bool Old value for showing errors.
+ */
+ function show_errors( $show = true ) {
+ $errors = $this->show_errors;
+ $this->show_errors = $show;
+ return $errors;
+ }
+
+ /**
+ * Disables showing of database errors.
+ *
+ * @since 0.71
+ *
+ * @return bool Whether showing of errors was active or not
+ */
+ function hide_errors() {
+ $show = $this->show_errors;
+ $this->show_errors = false;
+ return $show;
+ }
+
+ /**
+ * Whether to suppress database errors.
+ *
+ * @param unknown_type $suppress
+ * @return unknown
+ */
+ function suppress_errors( $suppress = true ) {
+ $errors = $this->suppress_errors;
+ $this->suppress_errors = $suppress;
+ return $errors;
+ }
+
+ /**
+ * Kill cached query results.
+ *
+ * @since 0.71
+ */
+ function flush() {
+ $this->last_result = array();
+ $this->col_info = null;
+ $this->last_query = null;
+ }
+
+ /**
+ * Perform a MySQL database query, using current database connection.
+ *
+ * More information can be found on the codex page.
+ *
+ * @since 0.71
+ *
+ * @param string $query
+ * @return int|false Number of rows affected/selected or false on error
+ */
+ function query($query) {
+ if ( ! $this->ready )
+ return false;
+
+ // filter the query, if filters are available
+ // NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
+ if ( function_exists('apply_filters') )
+ $query = apply_filters('query', $query);
+
+ // initialise return
+ $return_val = 0;
+ $this->flush();
+
+ // Log how the function was called
+ $this->func_call = "\$db->query(\"$query\")";
+
+ // Keep track of the last query for debug..
+ $this->last_query = $query;
+
+ // Perform the query via std mysql_query function..
+ if ( defined('SAVEQUERIES') && SAVEQUERIES )
+ $this->timer_start();
+
+ $this->result = @mysql_query($query, $this->dbh);
+ ++$this->num_queries;
+
+ if ( defined('SAVEQUERIES') && SAVEQUERIES )
+ $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() );
+
+ // If there is an error then take note of it..
+ if ( $this->last_error = mysql_error($this->dbh) ) {
+ $this->print_error();
+ return false;
+ }
+
+ if ( preg_match("/^\\s*(insert|delete|update|replace|alter) /i",$query) ) {
+ $this->rows_affected = mysql_affected_rows($this->dbh);
+ // Take note of the insert_id
+ if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
+ $this->insert_id = mysql_insert_id($this->dbh);
+ }
+ // Return number of rows affected
+ $return_val = $this->rows_affected;
+ } else {
+ $i = 0;
+ while ($i < @mysql_num_fields($this->result)) {
+ $this->col_info[$i] = @mysql_fetch_field($this->result);
+ $i++;
+ }
+ $num_rows = 0;
+ while ( $row = @mysql_fetch_object($this->result) ) {
+ $this->last_result[$num_rows] = $row;
+ $num_rows++;
+ }
+
+ @mysql_free_result($this->result);
+
+ // Log number of rows the query returned
+ $this->num_rows = $num_rows;
+
+ // Return number of rows selected
+ $return_val = $this->num_rows;
+ }
+
+ return $return_val;
+ }
+
+ /**
+ * Insert a row into a table.
+ *
+ * <code>
+ * wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) )
+ * </code>
+ *
+ * @since 2.5.0
+ * @see wpdb::prepare()
+ *
+ * @param string $table table name
+ * @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
+ * @param array|string $format (optional) An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings.
+ * @return int|false The number of rows inserted, or false on error.
+ */
+ function insert($table, $data, $format = null) {
+ $formats = $format = (array) $format;
+ $fields = array_keys($data);
+ $formatted_fields = array();
+ foreach ( $fields as $field ) {
+ if ( !empty($format) )
+ $form = ( $form = array_shift($formats) ) ? $form : $format[0];
+ elseif ( isset($this->field_types[$field]) )
+ $form = $this->field_types[$field];
+ else
+ $form = '%s';
+ $formatted_fields[] = $form;
+ }
+ $sql = "INSERT INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES ('" . implode( "','", $formatted_fields ) . "')";
+ return $this->query( $this->prepare( $sql, $data) );
+ }
+
+
+ /**
+ * Update a row in the table
+ *
+ * <code>
+ * wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) )
+ * </code>
+ *
+ * @since 2.5.0
+ * @see wpdb::prepare()
+ *
+ * @param string $table table name
+ * @param array $data Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
+ * @param array $where A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw".
+ * @param array|string $format (optional) An array of formats to be mapped to each of the values in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings.
+ * @param array|string $format_where (optional) An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $where will be treated as strings.
+ * @return int|false The number of rows updated, or false on error.
+ */
+ function update($table, $data, $where, $format = null, $where_format = null) {
+ if ( !is_array( $where ) )
+ return false;
+
+ $formats = $format = (array) $format;
+ $bits = $wheres = array();
+ foreach ( (array) array_keys($data) as $field ) {
+ if ( !empty($format) )
+ $form = ( $form = array_shift($formats) ) ? $form : $format[0];
+ elseif ( isset($this->field_types[$field]) )
+ $form = $this->field_types[$field];
+ else
+ $form = '%s';
+ $bits[] = "`$field` = {$form}";
+ }
+
+ $where_formats = $where_format = (array) $where_format;
+ foreach ( (array) array_keys($where) as $field ) {
+ if ( !empty($where_format) )
+ $form = ( $form = array_shift($where_formats) ) ? $form : $where_format[0];
+ elseif ( isset($this->field_types[$field]) )
+ $form = $this->field_types[$field];
+ else
+ $form = '%s';
+ $wheres[] = "`$field` = {$form}";
+ }
+
+ $sql = "UPDATE `$table` SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres );
+ return $this->query( $this->prepare( $sql, array_merge(array_values($data), array_values($where))) );
+ }
+
+ /**
+ * Retrieve one variable from the database.
+ *
+ * Executes a SQL query and returns the value from the SQL result.
+ * If the SQL result contains more than one column and/or more than one row, this function returns the value in the column and row specified.
+ * If $query is null, this function returns the value in the specified column and row from the previous SQL result.
+ *
+ * @since 0.71
+ *
+ * @param string|null $query SQL query. If null, use the result from the previous query.
+ * @param int $x (optional) Column of value to return. Indexed from 0.
+ * @param int $y (optional) Row of value to return. Indexed from 0.
+ * @return string Database query result
+ */
+ function get_var($query=null, $x = 0, $y = 0) {
+ $this->func_call = "\$db->get_var(\"$query\",$x,$y)";
+ if ( $query )
+ $this->query($query);
+
+ // Extract var out of cached results based x,y vals
+ if ( !empty( $this->last_result[$y] ) ) {
+ $values = array_values(get_object_vars($this->last_result[$y]));
+ }
+
+ // If there is a value return it else return null
+ return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
+ }
+
+ /**
+ * Retrieve one row from the database.
+ *
+ * Executes a SQL query and returns the row from the SQL result.
+ *
+ * @since 0.71
+ *
+ * @param string|null $query SQL query.
+ * @param string $output (optional) one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...), a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively.
+ * @param int $y (optional) Row to return. Indexed from 0.
+ * @return mixed Database query result in format specifed by $output
+ */
+ function get_row($query = null, $output = OBJECT, $y = 0) {
+ $this->func_call = "\$db->get_row(\"$query\",$output,$y)";
+ if ( $query )
+ $this->query($query);
+ else
+ return null;
+
+ if ( !isset($this->last_result[$y]) )
+ return null;
+
+ if ( $output == OBJECT ) {
+ return $this->last_result[$y] ? $this->last_result[$y] : null;
+ } elseif ( $output == ARRAY_A ) {
+ return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
+ } elseif ( $output == ARRAY_N ) {
+ return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
+ } else {
+ $this->print_error(/*WP_I18N_DB_GETROW_ERROR*/' $db->get_row(string query, output type, int offset) -- Le type de sortie doit être: OBJECT, ARRAY_A, ARRAY_N'/*/WP_I18N_DB_GETROW_ERROR*/);
+ }
+ }
+
+ /**
+ * Retrieve one column from the database.
+ *
+ * Executes a SQL query and returns the column from the SQL result.
+ * If the SQL result contains more than one column, this function returns the column specified.
+ * If $query is null, this function returns the specified column from the previous SQL result.
+ *
+ * @since 0.71
+ *
+ * @param string|null $query SQL query. If null, use the result from the previous query.
+ * @param int $x Column to return. Indexed from 0.
+ * @return array Database query result. Array indexed from 0 by SQL result row number.
+ */
+ function get_col($query = null , $x = 0) {
+ if ( $query )
+ $this->query($query);
+
+ $new_array = array();
+ // Extract the column values
+ for ( $i=0; $i < count($this->last_result); $i++ ) {
+ $new_array[$i] = $this->get_var(null, $x, $i);
+ }
+ return $new_array;
+ }
+
+ /**
+ * Retrieve an entire SQL result set from the database (i.e., many rows)
+ *
+ * Executes a SQL query and returns the entire SQL result.
+ *
+ * @since 0.71
+ *
+ * @param string $query SQL query.
+ * @param string $output (optional) ane of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded.
+ * @return mixed Database query results
+ */
+ function get_results($query = null, $output = OBJECT) {
+ $this->func_call = "\$db->get_results(\"$query\", $output)";
+
+ if ( $query )
+ $this->query($query);
+ else
+ return null;
+
+ if ( $output == OBJECT ) {
+ // Return an integer-keyed array of row objects
+ return $this->last_result;
+ } elseif ( $output == OBJECT_K ) {
+ // Return an array of row objects with keys from column 1
+ // (Duplicates are discarded)
+ foreach ( $this->last_result as $row ) {
+ $key = array_shift( get_object_vars( $row ) );
+ if ( !isset( $new_array[ $key ] ) )
+ $new_array[ $key ] = $row;
+ }
+ return $new_array;
+ } elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
+ // Return an integer-keyed array of...
+ if ( $this->last_result ) {
+ $i = 0;
+ foreach( (array) $this->last_result as $row ) {
+ if ( $output == ARRAY_N ) {
+ // ...integer-keyed row arrays
+ $new_array[$i] = array_values( get_object_vars( $row ) );
+ } else {
+ // ...column name-keyed row arrays
+ $new_array[$i] = get_object_vars( $row );
+ }
+ ++$i;
+ }
+ return $new_array;
+ }
+ }
+ }
+
+ /**
+ * Retrieve column metadata from the last query.
+ *
+ * @since 0.71
+ *
+ * @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill
+ * @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type
+ * @return mixed Column Results
+ */
+ function get_col_info($info_type = 'name', $col_offset = -1) {
+ if ( $this->col_info ) {
+ if ( $col_offset == -1 ) {
+ $i = 0;
+ foreach( (array) $this->col_info as $col ) {
+ $new_array[$i] = $col->{$info_type};
+ $i++;
+ }
+ return $new_array;
+ } else {
+ return $this->col_info[$col_offset]->{$info_type};
+ }
+ }
+ }
+
+ /**
+ * Starts the timer, for debugging purposes.
+ *
+ * @since 1.5.0
+ *
+ * @return true
+ */
+ function timer_start() {
+ $mtime = microtime();
+ $mtime = explode(' ', $mtime);
+ $this->time_start = $mtime[1] + $mtime[0];
+ return true;
+ }
+
+ /**
+ * Stops the debugging timer.
+ *
+ * @since 1.5.0
+ *
+ * @return int Total time spent on the query, in milliseconds
+ */
+ function timer_stop() {
+ $mtime = microtime();
+ $mtime = explode(' ', $mtime);
+ $time_end = $mtime[1] + $mtime[0];
+ $time_total = $time_end - $this->time_start;
+ return $time_total;
+ }
+
+ /**
+ * Wraps errors in a nice header and footer and dies.
+ *
+ * Will not die if wpdb::$show_errors is true
+ *
+ * @since 1.5.0
+ *
+ * @param string $message
+ * @return false|void
+ */
+ function bail($message) {
+ if ( !$this->show_errors ) {
+ if ( class_exists('WP_Error') )
+ $this->error = new WP_Error('500', $message);
+ else
+ $this->error = $message;
+ return false;
+ }
+ wp_die($message);
+ }
+
+ /**
+ * Whether or not MySQL database is at least the required minimum version.
+ *
+ * @since 2.5.0
+ * @uses $wp_version
+ *
+ * @return WP_Error
+ */
+ function check_database_version()
+ {
+ global $wp_version;
+ // Make sure the server has MySQL 4.0
+ if ( version_compare($this->db_version(), '4.0.0', '<') )
+ return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version));
+ }
+
+ /**
+ * Whether of not the database supports collation.
+ *
+ * Called when WordPress is generating the table scheme.
+ *
+ * @since 2.5.0
+ *
+ * @return bool True if collation is supported, false if version does not
+ */
+ function supports_collation()
+ {
+ return $this->has_cap( 'collation' );
+ }
+
+ /**
+ * Generic function to determine if a database supports a particular feature
+ * @param string $db_cap the feature
+ * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource.
+ * @return bool
+ */
+ function has_cap( $db_cap ) {
+ $version = $this->db_version();
+
+ switch ( strtolower( $db_cap ) ) :
+ case 'collation' : // @since 2.5.0
+ case 'group_concat' : // @since 2.7
+ case 'subqueries' : // @since 2.7
+ return version_compare($version, '4.1', '>=');
+ break;
+ endswitch;
+
+ return false;
+ }
+
+ /**
+ * Retrieve the name of the function that called wpdb.
+ *
+ * Requires PHP 4.3 and searches up the list of functions until it reaches
+ * the one that would most logically had called this method.
+ *
+ * @since 2.5.0
+ *
+ * @return string The name of the calling function
+ */
+ function get_caller() {
+ // requires PHP 4.3+
+ if ( !is_callable('debug_backtrace') )
+ return '';
+
+ $bt = debug_backtrace();
+ $caller = array();
+
+ $bt = array_reverse( $bt );
+ foreach ( (array) $bt as $call ) {
+ if ( @$call['class'] == __CLASS__ )
+ continue;
+ $function = $call['function'];
+ if ( isset( $call['class'] ) )
+ $function = $call['class'] . "->$function";
+ $caller[] = $function;
+ }
+ $caller = join( ', ', $caller );
+
+ return $caller;
+ }
+
+ /**
+ * The database version number
+ * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource.
+ * @return false|string false on failure, version number on success
+ */
+ function db_version() {
+ return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ));
+ }
+}
+
+if ( ! isset($wpdb) ) {
+ /**
+ * WordPress Database Object, if it isn't set already in wp-content/db.php
+ * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database
+ * @since 0.71
+ */
+ $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);
+}
+?>