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Edit File : class-wp-network-query.php \| Size : 16.79 KB
<?php /** * Network API: WP_Network_Query class * * @package WordPress * @subpackage Multisite * @since 4.6.0 / /* * Core class used for querying networks. * * @since 4.6.0 * * @see WP_Network_Query::__construct() for accepted arguments. / class WP_Network_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' => '', ); /* * 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 networks located by the query. * * @since 4.6.0 * @var array / public $networks; /* * The amount of found networks for the current query. * * @since 4.6.0 * @var int / public $found_networks = 0; /* * The number of pages. * * @since 4.6.0 * @var int / public $max_num_pages = 0; /* * Constructor. * * Sets up the network query, based on the query vars passed. * * @since 4.6.0 * * @param string\|array $query { * Optional. Array or query string of network query parameters. Default empty. * * @type array $network__in Array of network IDs to include. Default empty. * @type array $network__not_in Array of network IDs to exclude. Default empty. * @type bool $count Whether to return a network count (true) or array of network objects. * Default false. * @type string $fields Network fields to return. Accepts 'ids' (returns an array of network IDs) * or empty (returns an array of complete network objects). Default empty. * @type int $number Maximum number of networks to retrieve. Default empty (no limit). * @type int $offset Number of networks 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 Network status or array of statuses. Accepts 'id', 'domain', 'path', * 'domain_length', 'path_length' 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 networks. Accepts 'ASC', 'DESC'. Default 'ASC'. * @type string $domain Limit results to those affiliated with a given domain. Default empty. * @type array $domain__in Array of domains to include affiliated networks for. Default empty. * @type array $domain__not_in Array of domains to exclude affiliated networks 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 networks for. Default empty. * @type array $path__not_in Array of paths to exclude affiliated networks for. Default empty. * @type string $search Search term(s) to retrieve matching networks for. Default empty. * @type bool $update_network_cache Whether to prime the cache for found networks. Default true. * } / public function __construct( $query = '' ) { $this->query_var_defaults = array( 'network__in' => '', 'network__not_in' => '', 'count' => false, 'fields' => '', 'number' => '', 'offset' => '', 'no_found_rows' => true, 'orderby' => 'id', 'order' => 'ASC', 'domain' => '', 'domain__in' => '', 'domain__not_in' => '', 'path' => '', 'path__in' => '', 'path__not_in' => '', 'search' => '', 'update_network_cache' => true, ); if ( ! empty( $query ) ) { $this->query( $query ); } } /* * Parses arguments passed to the network query with default query parameters. * * @since 4.6.0 * * @param string\|array $query WP_Network_Query arguments. See WP_Network_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 network query vars have been parsed. * * @since 4.6.0 * * @param WP_Network_Query $this The WP_Network_Query instance (passed by reference). / do_action_ref_array( 'parse_network_query', array( &$this ) ); } /* * Sets up the WordPress query for retrieving networks. * * @since 4.6.0 * * @param string\|array $query Array or URL query string of parameters. * @return array\|int List of WP_Network objects, a list of network ids when 'fields' is set to 'ids', * or the number of networks when 'count' is passed as a query var. / public function query( $query ) { $this->query_vars = wp_parse_args( $query ); return $this->get_networks(); } /* * Gets a list of networks matching the query vars. * * @since 4.6.0 * * @return array\|int List of WP_Network objects, a list of network ids when 'fields' is set to 'ids', * or the number of networks when 'count' is passed as a query var. / public function get_networks() { $this->parse_query(); /* * Fires before networks are retrieved. * * @since 4.6.0 * * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference). / do_action_ref_array( 'pre_get_networks', array( &$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( 'networks' ); $cache_key = "get_network_ids:$key:$last_changed"; $cache_value = wp_cache_get( $cache_key, 'networks' ); if ( false === $cache_value ) { $network_ids = $this->get_network_ids(); if ( $network_ids ) { $this->set_found_networks(); } $cache_value = array( 'network_ids' => $network_ids, 'found_networks' => $this->found_networks, ); wp_cache_add( $cache_key, $cache_value, 'networks' ); } else { $network_ids = $cache_value['network_ids']; $this->found_networks = $cache_value['found_networks']; } if ( $this->found_networks && $this->query_vars['number'] ) { $this->max_num_pages = ceil( $this->found_networks / $this->query_vars['number'] ); } // If querying for a count only, there's nothing more to do. if ( $this->query_vars['count'] ) { // $network_ids is actually a count in this case. return intval( $network_ids ); } $network_ids = array_map( 'intval', $network_ids ); if ( 'ids' == $this->query_vars['fields'] ) { $this->networks = $network_ids; return $this->networks; } if ( $this->query_vars['update_network_cache'] ) { _prime_network_caches( $network_ids ); } // Fetch full network objects from the primed cache. $_networks = array(); foreach ( $network_ids as $network_id ) { if ( $_network = get_network( $network_id ) ) { $_networks[] = $_network; } } /* * Filters the network query results. * * @since 4.6.0 * * @param WP_Network[] $_networks An array of WP_Network objects. * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference). / $_networks = apply_filters_ref_array( 'the_networks', array( $_networks, &$this ) ); // Convert to WP_Network instances $this->networks = array_map( 'get_network', $_networks ); return $this->networks; } /* * Used internally to get a list of network IDs matching the query vars. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return int\|array A single count of network IDs if a count query. An array of network IDs if a full query. / protected function get_network_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 ( 'network__in' === $_orderby ) { $orderby_array[] = $parsed; continue; } $orderby_array[] = $parsed . ' ' . $this->parse_order( $_order ); } $orderby = implode( ', ', $orderby_array ); } else { $orderby = "$wpdb->site.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->site.id"; } // Parse network IDs for an IN clause. if ( ! empty( $this->query_vars['network__in'] ) ) { $this->sql_clauses['where']['network__in'] = "$wpdb->site.id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )'; } // Parse network IDs for a NOT IN clause. if ( ! empty( $this->query_vars['network__not_in'] ) ) { $this->sql_clauses['where']['network__not_in'] = "$wpdb->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'] = $wpdb->prepare( "$wpdb->site.domain = %s", $this->query_vars['domain'] ); } // Parse network domain for an IN clause. if ( is_array( $this->query_vars['domain__in'] ) ) { $this->sql_clauses['where']['domain__in'] = "$wpdb->site.domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )"; } // Parse network domain for a NOT IN clause. if ( is_array( $this->query_vars['domain__not_in'] ) ) { $this->sql_clauses['where']['domain__not_in'] = "$wpdb->site.domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )"; } if ( ! empty( $this->query_vars['path'] ) ) { $this->sql_clauses['where']['path'] = $wpdb->prepare( "$wpdb->site.path = %s", $this->query_vars['path'] ); } // Parse network path for an IN clause. if ( is_array( $this->query_vars['path__in'] ) ) { $this->sql_clauses['where']['path__in'] = "$wpdb->site.path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )"; } // Parse network path for a NOT IN clause. if ( is_array( $this->query_vars['path__not_in'] ) ) { $this->sql_clauses['where']['path__not_in'] = "$wpdb->site.path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )"; } // Falsey search strings are ignored. if ( strlen( $this->query_vars['search'] ) ) { $this->sql_clauses['where']['search'] = $this->get_search_sql( $this->query_vars['search'], array( "$wpdb->site.domain", "$wpdb->site.path" ) ); } $join = ''; $where = implode( ' AND ', $this->sql_clauses['where'] ); $groupby = ''; $pieces = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' ); /** * Filters the network query clauses. * * @since 4.6.0 * * @param string[] $pieces An associative array of network query clauses. * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference). / $clauses = apply_filters_ref_array( 'networks_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->site $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 ) ); } $network_ids = $wpdb->get_col( $this->request ); return array_map( 'intval', $network_ids ); } /* * Populates found_networks 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_networks() { global $wpdb; if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) { /* * Filters the query used to retrieve found network count. * * @since 4.6.0 * * @param string $found_networks_query SQL query. Default 'SELECT FOUND_ROWS()'. * @param WP_Network_Query $network_query The `WP_Network_Query` instance. / $found_networks_query = apply_filters( 'found_networks_query', 'SELECT FOUND_ROWS()', $this ); $this->found_networks = (int) $wpdb->get_var( $found_networks_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 string[] $columns Array of columns to search. * * @return string Search SQL. / protected function get_search_sql( $string, $columns ) { global $wpdb; $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 network 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; $allowed_keys = array( 'id', 'domain', 'path', ); $parsed = false; if ( $orderby == 'network__in' ) { $network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) ); $parsed = "FIELD( {$wpdb->site}.id, $network__in )"; } elseif ( $orderby == 'domain_length' \|\| $orderby == 'path_length' ) { $field = substr( $orderby, 0, -7 ); $parsed = "CHAR_LENGTH($wpdb->site.$field)"; } elseif ( in_array( $orderby, $allowed_keys ) ) { $parsed = "$wpdb->site.$orderby"; } 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'; } } } Back

Edit File : class-wp-network-query.php | Size : 16.79 KB

<?php
/**
 * Network API: WP_Network_Query class
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 4.6.0
 */

/**
 * Core class used for querying networks.
 *
 * @since 4.6.0
 *
 * @see WP_Network_Query::__construct() for accepted arguments.
 */
class WP_Network_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'  => '',
	);

/**
	 * 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 networks located by the query.
	 *
	 * @since 4.6.0
	 * @var array
	 */
	public $networks;

/**
	 * The amount of found networks for the current query.
	 *
	 * @since 4.6.0
	 * @var int
	 */
	public $found_networks = 0;

/**
	 * The number of pages.
	 *
	 * @since 4.6.0
	 * @var int
	 */
	public $max_num_pages = 0;

/**
	 * Constructor.
	 *
	 * Sets up the network query, based on the query vars passed.
	 *
	 * @since 4.6.0
	 *
	 * @param string|array $query {
	 *     Optional. Array or query string of network query parameters. Default empty.
	 *
	 *     @type array        $network__in          Array of network IDs to include. Default empty.
	 *     @type array        $network__not_in      Array of network IDs to exclude. Default empty.
	 *     @type bool         $count                Whether to return a network count (true) or array of network objects.
	 *                                              Default false.
	 *     @type string       $fields               Network fields to return. Accepts 'ids' (returns an array of network IDs)
	 *                                              or empty (returns an array of complete network objects). Default empty.
	 *     @type int          $number               Maximum number of networks to retrieve. Default empty (no limit).
	 *     @type int          $offset               Number of networks 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              Network status or array of statuses. Accepts 'id', 'domain', 'path',
	 *                                              'domain_length', 'path_length' 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 networks. Accepts 'ASC', 'DESC'. Default 'ASC'.
	 *     @type string       $domain               Limit results to those affiliated with a given domain. Default empty.
	 *     @type array        $domain__in           Array of domains to include affiliated networks for. Default empty.
	 *     @type array        $domain__not_in       Array of domains to exclude affiliated networks 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 networks for. Default empty.
	 *     @type array        $path__not_in         Array of paths to exclude affiliated networks for. Default empty.
	 *     @type string       $search               Search term(s) to retrieve matching networks for. Default empty.
	 *     @type bool         $update_network_cache Whether to prime the cache for found networks. Default true.
	 * }
	 */
	public function __construct( $query = '' ) {
		$this->query_var_defaults = array(
			'network__in'          => '',
			'network__not_in'      => '',
			'count'                => false,
			'fields'               => '',
			'number'               => '',
			'offset'               => '',
			'no_found_rows'        => true,
			'orderby'              => 'id',
			'order'                => 'ASC',
			'domain'               => '',
			'domain__in'           => '',
			'domain__not_in'       => '',
			'path'                 => '',
			'path__in'             => '',
			'path__not_in'         => '',
			'search'               => '',
			'update_network_cache' => true,
		);

if ( ! empty( $query ) ) {
			$this->query( $query );
		}
	}

/**
	 * Parses arguments passed to the network query with default query parameters.
	 *
	 * @since 4.6.0
	 *
	 * @param string|array $query WP_Network_Query arguments. See WP_Network_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 network query vars have been parsed.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Network_Query $this The WP_Network_Query instance (passed by reference).
		 */
		do_action_ref_array( 'parse_network_query', array( &$this ) );
	}

/**
	 * Sets up the WordPress query for retrieving networks.
	 *
	 * @since 4.6.0
	 *
	 * @param string|array $query Array or URL query string of parameters.
	 * @return array|int List of WP_Network objects, a list of network ids when 'fields' is set to 'ids',
	 *                   or the number of networks when 'count' is passed as a query var.
	 */
	public function query( $query ) {
		$this->query_vars = wp_parse_args( $query );
		return $this->get_networks();
	}

/**
	 * Gets a list of networks matching the query vars.
	 *
	 * @since 4.6.0
	 *
	 * @return array|int List of WP_Network objects, a list of network ids when 'fields' is set to 'ids',
	 *                   or the number of networks when 'count' is passed as a query var.
	 */
	public function get_networks() {
		$this->parse_query();

/**
		 * Fires before networks are retrieved.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Network_Query $this Current instance of WP_Network_Query (passed by reference).
		 */
		do_action_ref_array( 'pre_get_networks', array( &$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( 'networks' );

$cache_key   = "get_network_ids:$key:$last_changed";
		$cache_value = wp_cache_get( $cache_key, 'networks' );

if ( false === $cache_value ) {
			$network_ids = $this->get_network_ids();
			if ( $network_ids ) {
				$this->set_found_networks();
			}

$cache_value = array(
				'network_ids'    => $network_ids,
				'found_networks' => $this->found_networks,
			);
			wp_cache_add( $cache_key, $cache_value, 'networks' );
		} else {
			$network_ids          = $cache_value['network_ids'];
			$this->found_networks = $cache_value['found_networks'];
		}

if ( $this->found_networks && $this->query_vars['number'] ) {
			$this->max_num_pages = ceil( $this->found_networks / $this->query_vars['number'] );
		}

// If querying for a count only, there's nothing more to do.
		if ( $this->query_vars['count'] ) {
			// $network_ids is actually a count in this case.
			return intval( $network_ids );
		}

$network_ids = array_map( 'intval', $network_ids );

if ( 'ids' == $this->query_vars['fields'] ) {
			$this->networks = $network_ids;
			return $this->networks;
		}

if ( $this->query_vars['update_network_cache'] ) {
			_prime_network_caches( $network_ids );
		}

// Fetch full network objects from the primed cache.
		$_networks = array();
		foreach ( $network_ids as $network_id ) {
			if ( $_network = get_network( $network_id ) ) {
				$_networks[] = $_network;
			}
		}

/**
		 * Filters the network query results.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Network[]     $_networks An array of WP_Network objects.
		 * @param WP_Network_Query $this      Current instance of WP_Network_Query (passed by reference).
		 */
		$_networks = apply_filters_ref_array( 'the_networks', array( $_networks, &$this ) );

// Convert to WP_Network instances
		$this->networks = array_map( 'get_network', $_networks );

return $this->networks;
	}

/**
	 * Used internally to get a list of network IDs matching the query vars.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @return int|array A single count of network IDs if a count query. An array of network IDs if a full query.
	 */
	protected function get_network_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 ( 'network__in' === $_orderby ) {
					$orderby_array[] = $parsed;
					continue;
				}

$orderby_array[] = $parsed . ' ' . $this->parse_order( $_order );
			}

$orderby = implode( ', ', $orderby_array );
		} else {
			$orderby = "$wpdb->site.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->site.id";
		}

// Parse network IDs for an IN clause.
		if ( ! empty( $this->query_vars['network__in'] ) ) {
			$this->sql_clauses['where']['network__in'] = "$wpdb->site.id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )';
		}

// Parse network IDs for a NOT IN clause.
		if ( ! empty( $this->query_vars['network__not_in'] ) ) {
			$this->sql_clauses['where']['network__not_in'] = "$wpdb->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'] = $wpdb->prepare( "$wpdb->site.domain = %s", $this->query_vars['domain'] );
		}

// Parse network domain for an IN clause.
		if ( is_array( $this->query_vars['domain__in'] ) ) {
			$this->sql_clauses['where']['domain__in'] = "$wpdb->site.domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )";
		}

// Parse network domain for a NOT IN clause.
		if ( is_array( $this->query_vars['domain__not_in'] ) ) {
			$this->sql_clauses['where']['domain__not_in'] = "$wpdb->site.domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )";
		}

if ( ! empty( $this->query_vars['path'] ) ) {
			$this->sql_clauses['where']['path'] = $wpdb->prepare( "$wpdb->site.path = %s", $this->query_vars['path'] );
		}

// Parse network path for an IN clause.
		if ( is_array( $this->query_vars['path__in'] ) ) {
			$this->sql_clauses['where']['path__in'] = "$wpdb->site.path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )";
		}

// Parse network path for a NOT IN clause.
		if ( is_array( $this->query_vars['path__not_in'] ) ) {
			$this->sql_clauses['where']['path__not_in'] = "$wpdb->site.path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )";
		}

// Falsey search strings are ignored.
		if ( strlen( $this->query_vars['search'] ) ) {
			$this->sql_clauses['where']['search'] = $this->get_search_sql(
				$this->query_vars['search'],
				array( "$wpdb->site.domain", "$wpdb->site.path" )
			);
		}

$join = '';

$where = implode( ' AND ', $this->sql_clauses['where'] );

$groupby = '';

$pieces = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' );

/**
		 * Filters the network query clauses.
		 *
		 * @since 4.6.0
		 *
		 * @param string[]         $pieces An associative array of network query clauses.
		 * @param WP_Network_Query $this   Current instance of WP_Network_Query (passed by reference).
		 */
		$clauses = apply_filters_ref_array( 'networks_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->site $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 ) );
		}

$network_ids = $wpdb->get_col( $this->request );

return array_map( 'intval', $network_ids );
	}

/**
	 * Populates found_networks 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_networks() {
		global $wpdb;

if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) {
			/**
			 * Filters the query used to retrieve found network count.
			 *
			 * @since 4.6.0
			 *
			 * @param string           $found_networks_query SQL query. Default 'SELECT FOUND_ROWS()'.
			 * @param WP_Network_Query $network_query        The `WP_Network_Query` instance.
			 */
			$found_networks_query = apply_filters( 'found_networks_query', 'SELECT FOUND_ROWS()', $this );

$this->found_networks = (int) $wpdb->get_var( $found_networks_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 string[] $columns Array of columns to search.
	 *
	 * @return string Search SQL.
	 */
	protected function get_search_sql( $string, $columns ) {
		global $wpdb;

$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 network 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;

$allowed_keys = array(
			'id',
			'domain',
			'path',
		);

$parsed = false;
		if ( $orderby == 'network__in' ) {
			$network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) );
			$parsed      = "FIELD( {$wpdb->site}.id, $network__in )";
		} elseif ( $orderby == 'domain_length' || $orderby == 'path_length' ) {
			$field  = substr( $orderby, 0, -7 );
			$parsed = "CHAR_LENGTH($wpdb->site.$field)";
		} elseif ( in_array( $orderby, $allowed_keys ) ) {
			$parsed = "$wpdb->site.$orderby";
		}

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';
		}
	}
}

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