<?php /** * Site API: WP_Site_Query class * * @package WordPress * @subpackage Sites * @since 4.6.0 */ /** * Core class used for querying sites. * * @since 4.6.0 * * @see WP_Site_Query::__construct() for accepted arguments. */ #[AllowDynamicProperties] class WP_Site_Query { /** * SQL for database query. * * @since 4.6.0 * @var string */ public $request; /** * SQL query clauses. * * @since 4.6.0 * @var array */ protected $sql_clauses = array( 'select' => '', 'from' => '', 'where' => array(), 'groupby' => '', 'orderby' => '', 'limits' => '', ); /** * Metadata query container. * * @since 5.1.0 * @var WP_Meta_Query */ public $meta_query = false; /** * Metadata query clauses. * * @since 5.1.0 * @var array */ protected $meta_query_clauses; /** * Date query container. * * @since 4.6.0 * @var WP_Date_Query A date query instance. */ public $date_query = false; /** * Query vars set by the user. * * @since 4.6.0 * @var array */ public $query_vars; /** * Default values for query vars. * * @since 4.6.0 * @var array */ public $query_var_defaults; /** * List of sites located by the query. * * @since 4.6.0 * @var array */ public $sites; /** * The amount of found sites for the current query. * * @since 4.6.0 * @var int */ public $found_sites = 0; /** * The number of pages. * * @since 4.6.0 * @var int */ public $max_num_pages = 0; /** * Sets up the site query, based on the query vars passed. * * @since 4.6.0 * @since 4.8.0 Introduced the 'lang_id', 'lang__in', and 'lang__not_in' parameters. * @since 5.1.0 Introduced the 'update_site_meta_cache', 'meta_query', 'meta_key', * 'meta_compare_key', 'meta_value', 'meta_type', and 'meta_compare' parameters. * @since 5.3.0 Introduced the 'meta_type_key' parameter. * * @param string|array $query { * Optional. Array or query string of site query parameters. Default empty. * * @type int[] $site__in Array of site IDs to include. Default empty. * @type int[] $site__not_in Array of site IDs to exclude. Default empty. * @type bool $count Whether to return a site count (true) or array of site objects. * Default false. * @type array $date_query Date query clauses to limit sites by. See WP_Date_Query. * Default null. * @type string $fields Site fields to return. Accepts 'ids' (returns an array of site IDs) * or empty (returns an array of complete site objects). Default empty. * @type int $ID A site ID to only return that site. Default empty. * @type int $number Maximum number of sites to retrieve. Default 100. * @type int $offset Number of sites to offset the query. Used to build LIMIT clause. * Default 0. * @type bool $no_found_rows Whether to disable the `SQL_CALC_FOUND_ROWS` query. Default true. * @type string|array $orderby Site status or array of statuses. Accepts: * - 'id' * - 'domain' * - 'path' * - 'network_id' * - 'last_updated' * - 'registered' * - 'domain_length' * - 'path_length' * - 'site__in' * - 'network__in' * - 'deleted' * - 'mature' * - 'spam' * - 'archived' * - 'public' * - false, an empty array, or 'none' to disable `ORDER BY` clause. * Default 'id'. * @type string $order How to order retrieved sites. Accepts 'ASC', 'DESC'. Default 'ASC'. * @type int $network_id Limit results to those affiliated with a given network ID. If 0, * include all networks. Default 0. * @type int[] $network__in Array of network IDs to include affiliated sites for. Default empty. * @type int[] $network__not_in Array of network IDs to exclude affiliated sites for. Default empty. * @type string $domain Limit results to those affiliated with a given domain. Default empty. * @type string[] $domain__in Array of domains to include affiliated sites for. Default empty. * @type string[] $domain__not_in Array of domains to exclude affiliated sites for. Default empty. * @type string $path Limit results to those affiliated with a given path. Default empty. * @type string[] $path__in Array of paths to include affiliated sites for. Default empty. * @type string[] $path__not_in Array of paths to exclude affiliated sites for. Default empty. * @type int $public Limit results to public sites. Accepts 1 or 0. Default empty. * @type int $archived Limit results to archived sites. Accepts 1 or 0. Default empty. * @type int $mature Limit results to mature sites. Accepts 1 or 0. Default empty. * @type int $spam Limit results to spam sites. Accepts 1 or 0. Default empty. * @type int $deleted Limit results to deleted sites. Accepts 1 or 0. Default empty. * @type int $lang_id Limit results to a language ID. Default empty. * @type string[] $lang__in Array of language IDs to include affiliated sites for. Default empty. * @type string[] $lang__not_in Array of language IDs to exclude affiliated sites for. Default empty. * @type string $search Search term(s) to retrieve matching sites for. Default empty. * @type string[] $search_columns Array of column names to be searched. Accepts 'domain' and 'path'. * Default empty array. * @type bool $update_site_cache Whether to prime the cache for found sites. Default true. * @type bool $update_site_meta_cache Whether to prime the metadata cache for found sites. Default true. * @type string|string[] $meta_key Meta key or keys to filter by. * @type string|string[] $meta_value Meta value or values to filter by. * @type string $meta_compare MySQL operator used for comparing the meta value. * See WP_Meta_Query::__construct() for accepted values and default value. * @type string $meta_compare_key MySQL operator used for comparing the meta key. * See WP_Meta_Query::__construct() for accepted values and default value. * @type string $meta_type MySQL data type that the meta_value column will be CAST to for comparisons. * See WP_Meta_Query::__construct() for accepted values and default value. * @type string $meta_type_key MySQL data type that the meta_key column will be CAST to for comparisons. * See WP_Meta_Query::__construct() for accepted values and default value. * @type array $meta_query An associative array of WP_Meta_Query arguments. * See WP_Meta_Query::__construct() for accepted values. * } */ public function __construct( $query = '' ) { $this->query_var_defaults = array( 'fields' => '', 'ID' => '', 'site__in' => '', 'site__not_in' => '', 'number' => 100, 'offset' => '', 'no_found_rows' => true, 'orderby' => 'id', 'order' => 'ASC', 'network_id' => 0, 'network__in' => '', 'network__not_in' => '', 'domain' => '', 'domain__in' => '', 'domain__not_in' => '', 'path' => '', 'path__in' => '', 'path__not_in' => '', 'public' => null, 'archived' => null, 'mature' => null, 'spam' => null, 'deleted' => null, 'lang_id' => null, 'lang__in' => '', 'lang__not_in' => '', 'search' => '', 'search_columns' => array(), 'count' => false, 'date_query' => null, // See WP_Date_Query. 'update_site_cache' => true, 'update_site_meta_cache' => true, 'meta_query' => '', 'meta_key' => '', 'meta_value' => '', 'meta_type' => '', 'meta_compare' => '', ); if ( ! empty( $query ) ) { $this->query( $query ); } } /** * Parses arguments passed to the site query with default query parameters. * * @since 4.6.0 * * @see WP_Site_Query::__construct() * * @param string|array $query Array or string of WP_Site_Query arguments. See WP_Site_Query::__construct(). */ public function parse_query( $query = '' ) { if ( empty( $query ) ) { $query = $this->query_vars; } $this->query_vars = wp_parse_args( $query, $this->query_var_defaults ); /** * Fires after the site query vars have been parsed. * * @since 4.6.0 * * @param WP_Site_Query $query The WP_Site_Query instance (passed by reference). */ do_action_ref_array( 'parse_site_query', array( &$this ) ); } /** * Sets up the WordPress query for retrieving sites. * * @since 4.6.0 * * @param string|array $query Array or URL query string of parameters. * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids', * or the number of sites when 'count' is passed as a query var. */ public function query( $query ) { $this->query_vars = wp_parse_args( $query ); return $this->get_sites(); } /** * Retrieves a list of sites matching the query vars. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids', * or the number of sites when 'count' is passed as a query var. */ public function get_sites() { global $wpdb; $this->parse_query(); // Parse meta query. $this->meta_query = new WP_Meta_Query(); $this->meta_query->parse_query_vars( $this->query_vars ); /** * Fires before sites are retrieved. * * @since 4.6.0 * * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). */ do_action_ref_array( 'pre_get_sites', array( &$this ) ); // Reparse query vars, in case they were modified in a 'pre_get_sites' callback. $this->meta_query->parse_query_vars( $this->query_vars ); if ( ! empty( $this->meta_query->queries ) ) { $this->meta_query_clauses = $this->meta_query->get_sql( 'blog', $wpdb->blogs, 'blog_id', $this ); } $site_data = null; /** * Filters the site data before the get_sites query takes place. * * Return a non-null value to bypass WordPress' default site queries. * * The expected return type from this filter depends on the value passed * in the request query vars: * - When `$this->query_vars['count']` is set, the filter should return * the site count as an integer. * - When `'ids' === $this->query_vars['fields']`, the filter should return * an array of site IDs. * - Otherwise the filter should return an array of WP_Site objects. * * Note that if the filter returns an array of site data, it will be assigned * to the `sites` property of the current WP_Site_Query instance. * * Filtering functions that require pagination information are encouraged to set * the `found_sites` and `max_num_pages` properties of the WP_Site_Query object, * passed to the filter by reference. If WP_Site_Query does not perform a database * query, it will not have enough information to generate these values itself. * * @since 5.2.0 * @since 5.6.0 The returned array of site data is assigned to the `sites` property * of the current WP_Site_Query instance. * * @param WP_Site[]|int[]|int|null $site_data Return an array of site data to short-circuit WP's site query, * the site count as an integer if `$this->query_vars['count']` is set, * or null to run the normal queries. * @param WP_Site_Query $query The WP_Site_Query instance, passed by reference. */ $site_data = apply_filters_ref_array( 'sites_pre_query', array( $site_data, &$this ) ); if ( null !== $site_data ) { if ( is_array( $site_data ) && ! $this->query_vars['count'] ) { $this->sites = $site_data; } return $site_data; } // $args can include anything. Only use the args defined in the query_var_defaults to compute the key. $_args = wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) ); // Ignore the $fields, $update_site_cache, $update_site_meta_cache argument as the queried result will be the same regardless. unset( $_args['fields'], $_args['update_site_cache'], $_args['update_site_meta_cache'] ); $key = md5( serialize( $_args ) ); $last_changed = wp_cache_get_last_changed( 'sites' ); $cache_key = "get_sites:$key:$last_changed"; $cache_value = wp_cache_get( $cache_key, 'site-queries' ); if ( false === $cache_value ) { $site_ids = $this->get_site_ids(); if ( $site_ids ) { $this->set_found_sites(); } $cache_value = array( 'site_ids' => $site_ids, 'found_sites' => $this->found_sites, ); wp_cache_add( $cache_key, $cache_value, 'site-queries' ); } else { $site_ids = $cache_value['site_ids']; $this->found_sites = $cache_value['found_sites']; } if ( $this->found_sites && $this->query_vars['number'] ) { $this->max_num_pages = (int) ceil( $this->found_sites / $this->query_vars['number'] ); } // If querying for a count only, there's nothing more to do. if ( $this->query_vars['count'] ) { // $site_ids is actually a count in this case. return (int) $site_ids; } $site_ids = array_map( 'intval', $site_ids ); if ( $this->query_vars['update_site_meta_cache'] ) { wp_lazyload_site_meta( $site_ids ); } if ( 'ids' === $this->query_vars['fields'] ) { $this->sites = $site_ids; return $this->sites; } // Prime site network caches. if ( $this->query_vars['update_site_cache'] ) { _prime_site_caches( $site_ids, false ); } // Fetch full site objects from the primed cache. $_sites = array(); foreach ( $site_ids as $site_id ) { $_site = get_site( $site_id ); if ( $_site ) { $_sites[] = $_site; } } /** * Filters the site query results. * * @since 4.6.0 * * @param WP_Site[] $_sites An array of WP_Site objects. * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). */ $_sites = apply_filters_ref_array( 'the_sites', array( $_sites, &$this ) ); // Convert to WP_Site instances. $this->sites = array_map( 'get_site', $_sites ); return $this->sites; } /** * Used internally to get a list of site IDs matching the query vars. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return int|array A single count of site IDs if a count query. An array of site IDs if a full query. */ protected function get_site_ids() { global $wpdb; $order = $this->parse_order( $this->query_vars['order'] ); // Disable ORDER BY with 'none', an empty array, or boolean false. if ( in_array( $this->query_vars['orderby'], array( 'none', array(), false ), true ) ) { $orderby = ''; } elseif ( ! empty( $this->query_vars['orderby'] ) ) { $ordersby = is_array( $this->query_vars['orderby'] ) ? $this->query_vars['orderby'] : preg_split( '/[,\s]/', $this->query_vars['orderby'] ); $orderby_array = array(); foreach ( $ordersby as $_key => $_value ) { if ( ! $_value ) { continue; } if ( is_int( $_key ) ) { $_orderby = $_value; $_order = $order; } else { $_orderby = $_key; $_order = $_value; } $parsed = $this->parse_orderby( $_orderby ); if ( ! $parsed ) { continue; } if ( 'site__in' === $_orderby || 'network__in' === $_orderby ) { $orderby_array[] = $parsed; continue; } $orderby_array[] = $parsed . ' ' . $this->parse_order( $_order ); } $orderby = implode( ', ', $orderby_array ); } else { $orderby = "{$wpdb->blogs}.blog_id $order"; } $number = absint( $this->query_vars['number'] ); $offset = absint( $this->query_vars['offset'] ); $limits = ''; if ( ! empty( $number ) ) { if ( $offset ) { $limits = 'LIMIT ' . $offset . ',' . $number; } else { $limits = 'LIMIT ' . $number; } } if ( $this->query_vars['count'] ) { $fields = 'COUNT(*)'; } else { $fields = "{$wpdb->blogs}.blog_id"; } // Parse site IDs for an IN clause. $site_id = absint( $this->query_vars['ID'] ); if ( ! empty( $site_id ) ) { $this->sql_clauses['where']['ID'] = $wpdb->prepare( "{$wpdb->blogs}.blog_id = %d", $site_id ); } // Parse site IDs for an IN clause. if ( ! empty( $this->query_vars['site__in'] ) ) { $this->sql_clauses['where']['site__in'] = "{$wpdb->blogs}.blog_id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__in'] ) ) . ' )'; } // Parse site IDs for a NOT IN clause. if ( ! empty( $this->query_vars['site__not_in'] ) ) { $this->sql_clauses['where']['site__not_in'] = "{$wpdb->blogs}.blog_id NOT IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__not_in'] ) ) . ' )'; } $network_id = absint( $this->query_vars['network_id'] ); if ( ! empty( $network_id ) ) { $this->sql_clauses['where']['network_id'] = $wpdb->prepare( 'site_id = %d', $network_id ); } // Parse site network IDs for an IN clause. if ( ! empty( $this->query_vars['network__in'] ) ) { $this->sql_clauses['where']['network__in'] = 'site_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )'; } // Parse site network IDs for a NOT IN clause. if ( ! empty( $this->query_vars['network__not_in'] ) ) { $this->sql_clauses['where']['network__not_in'] = 'site_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__not_in'] ) ) . ' )'; } if ( ! empty( $this->query_vars['domain'] ) ) { $this->sql_clauses['where']['domain'] = $wpdb->prepare( 'domain = %s', $this->query_vars['domain'] ); } // Parse site domain for an IN clause. if ( is_array( $this->query_vars['domain__in'] ) ) { $this->sql_clauses['where']['domain__in'] = "domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )"; } // Parse site domain for a NOT IN clause. if ( is_array( $this->query_vars['domain__not_in'] ) ) { $this->sql_clauses['where']['domain__not_in'] = "domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )"; } if ( ! empty( $this->query_vars['path'] ) ) { $this->sql_clauses['where']['path'] = $wpdb->prepare( 'path = %s', $this->query_vars['path'] ); } // Parse site path for an IN clause. if ( is_array( $this->query_vars['path__in'] ) ) { $this->sql_clauses['where']['path__in'] = "path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )"; } // Parse site path for a NOT IN clause. if ( is_array( $this->query_vars['path__not_in'] ) ) { $this->sql_clauses['where']['path__not_in'] = "path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )"; } if ( is_numeric( $this->query_vars['archived'] ) ) { $archived = absint( $this->query_vars['archived'] ); $this->sql_clauses['where']['archived'] = $wpdb->prepare( 'archived = %s ', absint( $archived ) ); } if ( is_numeric( $this->query_vars['mature'] ) ) { $mature = absint( $this->query_vars['mature'] ); $this->sql_clauses['where']['mature'] = $wpdb->prepare( 'mature = %d ', $mature ); } if ( is_numeric( $this->query_vars['spam'] ) ) { $spam = absint( $this->query_vars['spam'] ); $this->sql_clauses['where']['spam'] = $wpdb->prepare( 'spam = %d ', $spam ); } if ( is_numeric( $this->query_vars['deleted'] ) ) { $deleted = absint( $this->query_vars['deleted'] ); $this->sql_clauses['where']['deleted'] = $wpdb->prepare( 'deleted = %d ', $deleted ); } if ( is_numeric( $this->query_vars['public'] ) ) { $public = absint( $this->query_vars['public'] ); $this->sql_clauses['where']['public'] = $wpdb->prepare( 'public = %d ', $public ); } if ( is_numeric( $this->query_vars['lang_id'] ) ) { $lang_id = absint( $this->query_vars['lang_id'] ); $this->sql_clauses['where']['lang_id'] = $wpdb->prepare( 'lang_id = %d ', $lang_id ); } // Parse site language IDs for an IN clause. if ( ! empty( $this->query_vars['lang__in'] ) ) { $this->sql_clauses['where']['lang__in'] = 'lang_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__in'] ) ) . ' )'; } // Parse site language IDs for a NOT IN clause. if ( ! empty( $this->query_vars['lang__not_in'] ) ) { $this->sql_clauses['where']['lang__not_in'] = 'lang_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__not_in'] ) ) . ' )'; } // Falsey search strings are ignored. if ( strlen( $this->query_vars['search'] ) ) { $search_columns = array(); if ( $this->query_vars['search_columns'] ) { $search_columns = array_intersect( $this->query_vars['search_columns'], array( 'domain', 'path' ) ); } if ( ! $search_columns ) { $search_columns = array( 'domain', 'path' ); } /** * Filters the columns to search in a WP_Site_Query search. * * The default columns include 'domain' and 'path. * * @since 4.6.0 * * @param string[] $search_columns Array of column names to be searched. * @param string $search Text being searched. * @param WP_Site_Query $query The current WP_Site_Query instance. */ $search_columns = apply_filters( 'site_search_columns', $search_columns, $this->query_vars['search'], $this ); $this->sql_clauses['where']['search'] = $this->get_search_sql( $this->query_vars['search'], $search_columns ); } $date_query = $this->query_vars['date_query']; if ( ! empty( $date_query ) && is_array( $date_query ) ) { $this->date_query = new WP_Date_Query( $date_query, 'registered' ); // Strip leading 'AND'. $this->sql_clauses['where']['date_query'] = preg_replace( '/^\s*AND\s*/', '', $this->date_query->get_sql() ); } $join = ''; $groupby = ''; if ( ! empty( $this->meta_query_clauses ) ) { $join .= $this->meta_query_clauses['join']; // Strip leading 'AND'. $this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $this->meta_query_clauses['where'] ); if ( ! $this->query_vars['count'] ) { $groupby = "{$wpdb->blogs}.blog_id"; } } $where = implode( ' AND ', $this->sql_clauses['where'] ); $pieces = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' ); /** * Filters the site query clauses. * * @since 4.6.0 * * @param string[] $clauses { * Associative array of the clauses for the query. * * @type string $fields The SELECT clause of the query. * @type string $join The JOIN clause of the query. * @type string $where The WHERE clause of the query. * @type string $orderby The ORDER BY clause of the query. * @type string $limits The LIMIT clause of the query. * @type string $groupby The GROUP BY clause of the query. * } * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). */ $clauses = apply_filters_ref_array( 'sites_clauses', array( compact( $pieces ), &$this ) ); $fields = isset( $clauses['fields'] ) ? $clauses['fields'] : ''; $join = isset( $clauses['join'] ) ? $clauses['join'] : ''; $where = isset( $clauses['where'] ) ? $clauses['where'] : ''; $orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : ''; $limits = isset( $clauses['limits'] ) ? $clauses['limits'] : ''; $groupby = isset( $clauses['groupby'] ) ? $clauses['groupby'] : ''; if ( $where ) { $where = 'WHERE ' . $where; } if ( $groupby ) { $groupby = 'GROUP BY ' . $groupby; } if ( $orderby ) { $orderby = "ORDER BY $orderby"; } $found_rows = ''; if ( ! $this->query_vars['no_found_rows'] ) { $found_rows = 'SQL_CALC_FOUND_ROWS'; } $this->sql_clauses['select'] = "SELECT $found_rows $fields"; $this->sql_clauses['from'] = "FROM $wpdb->blogs $join"; $this->sql_clauses['groupby'] = $groupby; $this->sql_clauses['orderby'] = $orderby; $this->sql_clauses['limits'] = $limits; // Beginning of the string is on a new line to prevent leading whitespace. See https://core.trac.wordpress.org/ticket/56841. $this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['groupby']} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}"; if ( $this->query_vars['count'] ) { return (int) $wpdb->get_var( $this->request ); } $site_ids = $wpdb->get_col( $this->request ); return array_map( 'intval', $site_ids ); } /** * Populates found_sites and max_num_pages properties for the current query * if the limit clause was used. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. */ private function set_found_sites() { global $wpdb; if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) { /** * Filters the query used to retrieve found site count. * * @since 4.6.0 * * @param string $found_sites_query SQL query. Default 'SELECT FOUND_ROWS()'. * @param WP_Site_Query $site_query The `WP_Site_Query` instance. */ $found_sites_query = apply_filters( 'found_sites_query', 'SELECT FOUND_ROWS()', $this ); $this->found_sites = (int) $wpdb->get_var( $found_sites_query ); } } /** * Used internally to generate an SQL string for searching across multiple columns. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $search Search string. * @param string[] $columns Array of columns to search. * @return string Search SQL. */ protected function get_search_sql( $search, $columns ) { global $wpdb; if ( str_contains( $search, '*' ) ) { $like = '%' . implode( '%', array_map( array( $wpdb, 'esc_like' ), explode( '*', $search ) ) ) . '%'; } else { $like = '%' . $wpdb->esc_like( $search ) . '%'; } $searches = array(); foreach ( $columns as $column ) { $searches[] = $wpdb->prepare( "$column LIKE %s", $like ); } return '(' . implode( ' OR ', $searches ) . ')'; } /** * Parses and sanitizes 'orderby' keys passed to the site query. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $orderby Alias for the field to order by. * @return string|false Value to used in the ORDER clause. False otherwise. */ protected function parse_orderby( $orderby ) { global $wpdb; $parsed = false; switch ( $orderby ) { case 'site__in': $site__in = implode( ',', array_map( 'absint', $this->query_vars['site__in'] ) ); $parsed = "FIELD( {$wpdb->blogs}.blog_id, $site__in )"; break; case 'network__in': $network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) ); $parsed = "FIELD( {$wpdb->blogs}.site_id, $network__in )"; break; case 'domain': case 'last_updated': case 'path': case 'registered': case 'deleted': case 'spam': case 'mature': case 'archived': case 'public': $parsed = $orderby; break; case 'network_id': $parsed = 'site_id'; break; case 'domain_length': $parsed = 'CHAR_LENGTH(domain)'; break; case 'path_length': $parsed = 'CHAR_LENGTH(path)'; break; case 'id': $parsed = "{$wpdb->blogs}.blog_id"; break; } if ( ! empty( $parsed ) || empty( $this->meta_query_clauses ) ) { return $parsed; } $meta_clauses = $this->meta_query->get_clauses(); if ( empty( $meta_clauses ) ) { return $parsed; } $primary_meta_query = reset( $meta_clauses ); if ( ! empty( $primary_meta_query['key'] ) && $primary_meta_query['key'] === $orderby ) { $orderby = 'meta_value'; } switch ( $orderby ) { case 'meta_value': if ( ! empty( $primary_meta_query['type'] ) ) { $parsed = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})"; } else { $parsed = "{$primary_meta_query['alias']}.meta_value"; } break; case 'meta_value_num': $parsed = "{$primary_meta_query['alias']}.meta_value+0"; break; default: if ( isset( $meta_clauses[ $orderby ] ) ) { $meta_clause = $meta_clauses[ $orderby ]; $parsed = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})"; } } return $parsed; } /** * Parses an 'order' query variable and cast it to 'ASC' or 'DESC' as necessary. * * @since 4.6.0 * * @param string $order The 'order' query variable. * @return string The sanitized 'order' query variable. */ protected function parse_order( $order ) { if ( ! is_string( $order ) || empty( $order ) ) { return 'ASC'; } if ( 'ASC' === strtoupper( $order ) ) { return 'ASC'; } else { return 'DESC'; } } }

تفاعل

الذكاء الاصطناعي التوليدي ابتكار مذهل أم تهديد خفي ‏

مايو 18, 2025

3٬092 2 دقائق

كتبت شروق عارف
في السنوات الأخيرة أصبحنا نلجا الي الذكاء الاصطناعي في كافة أمور حياتنا وذلك لقدرته علي توفير حلول سريعه وانجاز المهام بسرعه كبيرة ولكن علي الرغم من المساعدة الضخمة التي يقدمها الذكاء الاصطناعي لنا أصبحنا نغفل عن أمر مهم وهو هل اعتمادنا الكامل على الذكاء الاصطناعي قد يؤدي إلى تراجع قدرتنا الذهنية

الذكاء الاصطناعي التوليدي سلاح ذو حدين

أجرت شركة مايكروسوفت بالتعاون مع جامعة كارنيجي ميلون دراسة حديثة تقدم لنا إجابة حول تأثير الذكاء الاصطناعي التوليدي على المستخدمين حيث أشارت
الدراسة إلى أن هذا النوع من الذكاء الاصطناعي يمكن أن يساعد في إنشاء محتوى مثل النصوص، الصور، الموسيقى، والفيديوهات وذلك باستخدام تقنيات كالشبكات العصبية التوليدية العميقة وذلك النوع قد يمثل سلاح ذو حدين فقد يؤدي الي تدني القدرات المعرفية او الي تقديم فوائد عديدة ويحدث ذلك حسب إستخدمنا ففي حالة اعتمدنا على الذكاء الاصطناعي التوليدي بشكل مستمر سوف يصل بنا الأمر لجعله يفكر بالنيابة عنا و الجدير بالذكر أن الباحثين يمتعون عن قول أن أدوات الذكاء الاصطناعي التوليدي قد تجعلك أكثر غباء لكن الدراسة أوضحت أن الاعتماد الكامل على أدوات الذكاء الاصطناعي التوليد يمكن أن تضعف قدرتنا على حل ‏ المشكلات التي قد تواجهنا في المستقبل وعلى جانب اخر يمكن أن يكون الذكاء الاصطناعي مفيد للغاية ويحدث ذلك عند استخدامه بطريقة مناسبة كأداة مساعدة وليس كبديل للعقل

‏ كيف نحافظ على عقولنا وسط سيطرة الآلات

لاستخدام الذكاء الاصطناعي التوليدي بطريقة صحيحة علينا اتباع عدة خطوات أساسية منها المحافظة على خصوصية بياناتنا بالإضافة إلى عدم مشاركته في أمور تتعلق بحياتنا الشخصية كما يجب علينا استخدام الذكاء الاصطناعي كأداة مساعدة لإنجاز بعض المهام وليس كبديل للعقل فعلى سبيل المثال عند الاستعانة بالذكاء الاصطناعي لإنجاز مهمة معينة يمكننا إضافة تعديلاتنا الخاصة كما يجب علينا مراجعة دقة المعلومات المقدمة بواسطة الذكاء الاصطناعي لأن من الممكن أن تكون مندثه أو غير صحيحة

‏ اوضح الدكتور إبراهيم عبدالله أستاذ تكنولوجيا المعلومات في المعهد العالي للدراسات النوعية في مصر ومعهد البيان للعلوم والتكنولوجيا في الإمارات أن الاعتماد المتزايد على الذكاء الاصطناعي في حياتنا اليومية يحمل في طياته جانب سلبي واخر ايجابي فمن الناحيه السلبية يوجد العديد من التخصصات التي قد تندثر مثل خدمة العملاء والطب وغيرها من التخصصات التي قد تختفي
كما قد يقل والإبداع والابتكار بشكل ملحوظ
وعلي الجانب الإيجابي الذكاء الاصطناعي سهل الحصول علي افكار غير متناهيه

كما أكد دكتور إبراهيم علي ضرورة إعادة تصميم المناهج الدراسية حتي نكون قادرين علي انتاج الذكاء الاصطناعي وليس فقط مستخدمين كما وجه نصيحة شديدة اللهجة للطلاب الذي تعتمد بشكل كلي علي الذكاء الاصطناعي مؤكد أن ذلك سوف يهدم قدرتهم علي البحث والإنتاج و سيضعف قدراتهم كأفراد بشرية على أعمار عقولهم

لفت الدكتور إبراهيم نظرنا الي إحد إخطر المشكلات التي قد تواجهنا في المستقبل ان الذكاء الاصطناعي يدرك نفسه ويشعر بوجوده ويتحكم في الناس وقراراتهم لصالح مجموعه من الأشخاص او الشراكات او لصالحه هو شخصي

قال الدكتور كريم محمود أستاذ مساعد الذكاء الاصطناعي في معهد ا البيان للعلوم والتكنولوجيا إن الذكاء الاصطناعي التوليدي يمثل فرصة فريدة لتعزيز الإبداع البشري لكنه يحمل في طياته مخاطر أهمها تقليل الاعتماد على العقل والتفكير النقدي وذلك في حالة استخدم بشكل مفرط لذلك من الضروري وضع إطار تنظيمي وتعليمي يوجه الاستخدام الأمثل لهذه الأدوات بحيث تظل مساعدة وليست بديل للعقل والتفكير

و يبقي الذكاء الاصطناعي التوليدي سلاح مزدوج يمكن أن يوسع أفاق الإبداع والابتكار لدينا أو قد يؤدي إلى تراجع قدراتنا الإبداعية لذلك علينا أن ندرك أن الذكاء الاصطناعي في جميع أشكاله أداة مساعدة وليست بديل عن العقل كما يجب علينا استخدامه بحكمة لتحقيق التقدم دون الإغفال عن دورنا كأفراد بشرية في التفكير والابتكار

مايو 18, 2025

3٬092 2 دقائق