Source
File: wp-includes/class-wp-site-query.php
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 $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 = '';
$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[] $pieces An associative 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 );
}