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Array or query string of site query parameters. Default empty. * * @type array $site__in Array of site IDs to include. Default empty. * @type array $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' and 'network__in'. Also accepts 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 array $network__in Array of network IDs to include affiliated sites for. Default empty. * @type array $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 array $domain__in Array of domains to include affiliated sites for. Default empty. * @type array $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 array $path__in Array of paths to include affiliated sites for. Default empty. * @type array $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 array $lang__in Array of language IDs to include affiliated sites for. Default empty. * @type array $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 array $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. * } */ 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, ); 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 $this The WP_Site_Query instance (passed by reference). */ do_action_ref_array( 'parse_site_query', array( &$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 array|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 * * @return array|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() { $this->parse_query(); /** * Fires before sites are retrieved. * * @since 4.6.0 * * @param WP_Site_Query $this Current instance of WP_Site_Query (passed by reference). */ do_action_ref_array( 'pre_get_sites', array( &$this ) ); // $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 argument as the queried result will be the same regardless. unset( $_args['fields'] ); $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, 'sites' ); 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, 'sites' ); } 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 = 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 intval( $site_ids ); } $site_ids = array_map( 'intval', $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 ); } // Fetch full site objects from the primed cache. $_sites = array(); foreach ( $site_ids as $site_id ) { if ( $_site = get_site( $site_id ) ) { $_sites[] = $_site; } } /** * Filters the site query results. * * @since 4.6.0 * * @param array $_sites An array of WP_Site objects. * @param WP_Site_Query $this 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 = "blog_id $order"; } $number = absint( $this->query_vars['number'] ); $offset = absint( $this->query_vars['offset'] ); if ( ! empty( $number ) ) { if ( $offset ) { $limits = 'LIMIT ' . $offset . ',' . $number; } else { $limits = 'LIMIT ' . $number; } } if ( $this->query_vars['count'] ) { $fields = 'COUNT(*)'; } else { $fields = '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( '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'] = "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'] = "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 array $search_columns Array of column names to be searched. * @param string $search Text being searched. * @param WP_Site_Query $this 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' ); $this->sql_clauses['where']['date_query'] = preg_replace( '/^\s*AND\s*/', '', $this->date_query->get_sql() ); } $join = ''; $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 array $pieces A compacted array of site query clauses. * @param WP_Site_Query $this 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; $this->request = "{$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 intval( $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 $string Search string. * @param array $columns Columns to search. * @return string Search SQL. */ protected function get_search_sql( $string, $columns ) { global $wpdb; if ( false !== strpos( $string, '*' ) ) { $like = '%' . implode( '%', array_map( array( $wpdb, 'esc_like' ), explode( '*', $string ) ) ) . '%'; } else { $like = '%' . $wpdb->esc_like( $string ) . '%'; } $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': $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 = 'blog_id'; break; } 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'; } } }