mirror of
https://github.com/WordPress/WordPress.git
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82911b1756
One thing fairly common to the cache groups is a block of code to look to see when the cache was last changed, and if there isn't one, to set it for the current microtime(). It appears in 8 different places in core. This adds a new helper `wp_cache_get_last_changed` to DRY things up a bit. Since `wp-includes/cache.php` isn't guaranteed to be loaded, this new function is in `wp-includes/functions.php` Props spacedmonkey, desrosj. Fixes #37464. Built from https://develop.svn.wordpress.org/trunk@38849 git-svn-id: http://core.svn.wordpress.org/trunk@38792 1a063a9b-81f0-0310-95a4-ce76da25c4cd
690 lines
22 KiB
PHP
690 lines
22 KiB
PHP
<?php
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/**
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* Site API: WP_Site_Query class
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*
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* @package WordPress
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* @subpackage Sites
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* @since 4.6.0
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*/
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/**
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* Core class used for querying sites.
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*
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* @since 4.6.0
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*
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* @see WP_Site_Query::__construct() for accepted arguments.
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*/
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class WP_Site_Query {
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/**
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* SQL for database query.
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*
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* @since 4.6.0
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* @access public
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* @var string
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*/
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public $request;
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/**
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* SQL query clauses.
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*
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* @since 4.6.0
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* @access protected
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* @var array
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*/
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protected $sql_clauses = array(
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'select' => '',
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'from' => '',
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'where' => array(),
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'groupby' => '',
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'orderby' => '',
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'limits' => '',
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);
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/**
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* Date query container.
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*
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* @since 4.6.0
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* @access public
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* @var object WP_Date_Query
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*/
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public $date_query = false;
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/**
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* Query vars set by the user.
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*
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* @since 4.6.0
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* @access public
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* @var array
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*/
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public $query_vars;
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/**
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* Default values for query vars.
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*
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* @since 4.6.0
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* @access public
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* @var array
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*/
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public $query_var_defaults;
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/**
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* List of sites located by the query.
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*
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* @since 4.6.0
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* @access public
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* @var array
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*/
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public $sites;
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/**
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* The amount of found sites for the current query.
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*
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* @since 4.6.0
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* @access public
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* @var int
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*/
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public $found_sites = 0;
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/**
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* The number of pages.
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*
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* @since 4.6.0
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* @access public
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* @var int
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*/
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public $max_num_pages = 0;
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/**
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* Sets up the site query, based on the query vars passed.
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*
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* @since 4.6.0
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* @access public
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*
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* @param string|array $query {
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* Optional. Array or query string of site query parameters. Default empty.
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*
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* @type array $site__in Array of site IDs to include. Default empty.
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* @type array $site__not_in Array of site IDs to exclude. Default empty.
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* @type bool $count Whether to return a site count (true) or array of site objects.
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* Default false.
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* @type array $date_query Date query clauses to limit sites by. See WP_Date_Query.
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* Default null.
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* @type string $fields Site fields to return. Accepts 'ids' (returns an array of site IDs)
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* or empty (returns an array of complete site objects). Default empty.
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* @type int $ID A site ID to only return that site. Default empty.
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* @type int $number Maximum number of sites to retrieve. Default 100.
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* @type int $offset Number of sites to offset the query. Used to build LIMIT clause.
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* Default 0.
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* @type bool $no_found_rows Whether to disable the `SQL_CALC_FOUND_ROWS` query. Default true.
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* @type string|array $orderby Site status or array of statuses. Accepts 'id', 'domain', 'path',
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* 'network_id', 'last_updated', 'registered', 'domain_length',
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* 'path_length', 'site__in' and 'network__in'. Also accepts false,
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* an empty array, or 'none' to disable `ORDER BY` clause.
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* Default 'id'.
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* @type string $order How to order retrieved sites. Accepts 'ASC', 'DESC'. Default 'ASC'.
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* @type int $network_id Limit results to those affiliated with a given network ID. If 0,
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* include all networks. Default 0.
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* @type array $network__in Array of network IDs to include affiliated sites for. Default empty.
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* @type array $network__not_in Array of network IDs to exclude affiliated sites for. Default empty.
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* @type string $domain Limit results to those affiliated with a given domain. Default empty.
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* @type array $domain__in Array of domains to include affiliated sites for. Default empty.
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* @type array $domain__not_in Array of domains to exclude affiliated sites for. Default empty.
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* @type string $path Limit results to those affiliated with a given path. Default empty.
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* @type array $path__in Array of paths to include affiliated sites for. Default empty.
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* @type array $path__not_in Array of paths to exclude affiliated sites for. Default empty.
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* @type int $public Limit results to public sites. Accepts '1' or '0'. Default empty.
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* @type int $archived Limit results to archived sites. Accepts '1' or '0'. Default empty.
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* @type int $mature Limit results to mature sites. Accepts '1' or '0'. Default empty.
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* @type int $spam Limit results to spam sites. Accepts '1' or '0'. Default empty.
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* @type int $deleted Limit results to deleted sites. Accepts '1' or '0'. Default empty.
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* @type string $search Search term(s) to retrieve matching sites for. Default empty.
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* @type array $search_columns Array of column names to be searched. Accepts 'domain' and 'path'.
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* Default empty array.
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* @type bool $update_site_cache Whether to prime the cache for found sites. Default false.
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* }
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*/
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public function __construct( $query = '' ) {
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$this->query_var_defaults = array(
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'fields' => '',
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'ID' => '',
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'site__in' => '',
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'site__not_in' => '',
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'number' => 100,
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'offset' => '',
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'no_found_rows' => true,
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'orderby' => 'id',
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'order' => 'ASC',
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'network_id' => 0,
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'network__in' => '',
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'network__not_in' => '',
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'domain' => '',
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'domain__in' => '',
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'domain__not_in' => '',
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'path' => '',
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'path__in' => '',
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'path__not_in' => '',
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'public' => null,
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'archived' => null,
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'mature' => null,
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'spam' => null,
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'deleted' => null,
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'search' => '',
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'search_columns' => array(),
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'count' => false,
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'date_query' => null, // See WP_Date_Query
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'update_site_cache' => true,
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);
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if ( ! empty( $query ) ) {
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$this->query( $query );
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}
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}
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/**
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* Parses arguments passed to the site query with default query parameters.
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*
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* @since 4.6.0
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* @access public
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*
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* @see WP_Site_Query::__construct()
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*
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* @param string|array $query Array or string of WP_Site_Query arguments. See WP_Site_Query::__construct().
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*/
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public function parse_query( $query = '' ) {
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if ( empty( $query ) ) {
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$query = $this->query_vars;
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}
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$this->query_vars = wp_parse_args( $query, $this->query_var_defaults );
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/**
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* Fires after the site query vars have been parsed.
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*
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* @since 4.6.0
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*
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* @param WP_Site_Query &$this The WP_Site_Query instance (passed by reference).
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*/
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do_action_ref_array( 'parse_site_query', array( &$this ) );
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}
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/**
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* Sets up the WordPress query for retrieving sites.
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*
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* @since 4.6.0
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* @access public
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*
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* @param string|array $query Array or URL query string of parameters.
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* @return array|int List of sites, or number of sites when 'count' is passed as a query var.
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*/
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public function query( $query ) {
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$this->query_vars = wp_parse_args( $query );
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return $this->get_sites();
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}
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/**
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* Retrieves a list of sites matching the query vars.
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*
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* @since 4.6.0
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* @access public
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*
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* @return array|int List of sites, or number of sites when 'count' is passed as a query var.
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*/
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public function get_sites() {
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$this->parse_query();
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/**
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* Fires before sites are retrieved.
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*
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* @since 4.6.0
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*
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* @param WP_Site_Query &$this Current instance of WP_Site_Query, passed by reference.
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*/
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do_action_ref_array( 'pre_get_sites', array( &$this ) );
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// $args can include anything. Only use the args defined in the query_var_defaults to compute the key.
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$key = md5( serialize( wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) ) ) );
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$last_changed = wp_cache_get_last_changed( 'sites' );
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$cache_key = "get_sites:$key:$last_changed";
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$cache_value = wp_cache_get( $cache_key, 'sites' );
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if ( false === $cache_value ) {
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$site_ids = $this->get_site_ids();
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if ( $site_ids ) {
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$this->set_found_sites();
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}
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$cache_value = array(
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'site_ids' => $site_ids,
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'found_sites' => $this->found_sites,
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);
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wp_cache_add( $cache_key, $cache_value, 'sites' );
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} else {
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$site_ids = $cache_value['site_ids'];
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$this->found_sites = $cache_value['found_sites'];
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}
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if ( $this->found_sites && $this->query_vars['number'] ) {
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$this->max_num_pages = ceil( $this->found_sites / $this->query_vars['number'] );
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}
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// If querying for a count only, there's nothing more to do.
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if ( $this->query_vars['count'] ) {
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// $site_ids is actually a count in this case.
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return intval( $site_ids );
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}
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$site_ids = array_map( 'intval', $site_ids );
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if ( 'ids' == $this->query_vars['fields'] ) {
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$this->sites = $site_ids;
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return $this->sites;
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}
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// Prime site network caches.
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if ( $this->query_vars['update_site_cache'] ) {
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_prime_site_caches( $site_ids );
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}
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// Fetch full site objects from the primed cache.
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$_sites = array();
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foreach ( $site_ids as $site_id ) {
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if ( $_site = get_site( $site_id ) ) {
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$_sites[] = $_site;
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}
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}
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/**
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* Filters the site query results.
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*
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* @since 4.6.0
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*
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* @param array $results An array of sites.
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* @param WP_Site_Query &$this Current instance of WP_Site_Query, passed by reference.
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*/
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$_sites = apply_filters_ref_array( 'the_sites', array( $_sites, &$this ) );
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// Convert to WP_Site instances.
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$this->sites = array_map( 'get_site', $_sites );
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return $this->sites;
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}
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/**
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* Used internally to get a list of site IDs matching the query vars.
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*
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* @since 4.6.0
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* @access protected
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @return int|array A single count of site IDs if a count query. An array of site IDs if a full query.
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*/
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protected function get_site_ids() {
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global $wpdb;
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$order = $this->parse_order( $this->query_vars['order'] );
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// Disable ORDER BY with 'none', an empty array, or boolean false.
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if ( in_array( $this->query_vars['orderby'], array( 'none', array(), false ), true ) ) {
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$orderby = '';
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} elseif ( ! empty( $this->query_vars['orderby'] ) ) {
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$ordersby = is_array( $this->query_vars['orderby'] ) ?
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$this->query_vars['orderby'] :
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preg_split( '/[,\s]/', $this->query_vars['orderby'] );
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$orderby_array = array();
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foreach ( $ordersby as $_key => $_value ) {
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if ( ! $_value ) {
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continue;
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}
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if ( is_int( $_key ) ) {
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$_orderby = $_value;
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$_order = $order;
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} else {
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$_orderby = $_key;
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$_order = $_value;
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}
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$parsed = $this->parse_orderby( $_orderby );
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if ( ! $parsed ) {
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continue;
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}
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if ( 'site__in' === $_orderby || 'network__in' === $_orderby ) {
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$orderby_array[] = $parsed;
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continue;
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}
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$orderby_array[] = $parsed . ' ' . $this->parse_order( $_order );
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}
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$orderby = implode( ', ', $orderby_array );
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} else {
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$orderby = "blog_id $order";
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}
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$number = absint( $this->query_vars['number'] );
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$offset = absint( $this->query_vars['offset'] );
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if ( ! empty( $number ) ) {
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if ( $offset ) {
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$limits = 'LIMIT ' . $offset . ',' . $number;
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} else {
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$limits = 'LIMIT ' . $number;
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}
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}
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if ( $this->query_vars['count'] ) {
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$fields = 'COUNT(*)';
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} else {
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$fields = 'blog_id';
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}
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// Parse site IDs for an IN clause.
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$site_id = absint( $this->query_vars['ID'] );
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if ( ! empty( $site_id ) ) {
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$this->sql_clauses['where']['ID'] = $wpdb->prepare( 'blog_id = %d', $site_id );
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}
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// Parse site IDs for an IN clause.
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if ( ! empty( $this->query_vars['site__in'] ) ) {
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$this->sql_clauses['where']['site__in'] = "blog_id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__in'] ) ) . ' )';
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}
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// Parse site IDs for a NOT IN clause.
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if ( ! empty( $this->query_vars['site__not_in'] ) ) {
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$this->sql_clauses['where']['site__not_in'] = "blog_id NOT IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__not_in'] ) ) . ' )';
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}
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$network_id = absint( $this->query_vars['network_id'] );
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if ( ! empty( $network_id ) ) {
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$this->sql_clauses['where']['network_id'] = $wpdb->prepare( 'site_id = %d', $network_id );
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}
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// Parse site network IDs for an IN clause.
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if ( ! empty( $this->query_vars['network__in'] ) ) {
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$this->sql_clauses['where']['network__in'] = 'site_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )';
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}
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// Parse site network IDs for a NOT IN clause.
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if ( ! empty( $this->query_vars['network__not_in'] ) ) {
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$this->sql_clauses['where']['network__not_in'] = 'site_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__not_in'] ) ) . ' )';
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}
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if ( ! empty( $this->query_vars['domain'] ) ) {
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$this->sql_clauses['where']['domain'] = $wpdb->prepare( 'domain = %s', $this->query_vars['domain'] );
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}
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// Parse site domain for an IN clause.
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if ( is_array( $this->query_vars['domain__in'] ) ) {
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$this->sql_clauses['where']['domain__in'] = "domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )";
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}
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// Parse site domain for a NOT IN clause.
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if ( is_array( $this->query_vars['domain__not_in'] ) ) {
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$this->sql_clauses['where']['domain__not_in'] = "domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )";
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}
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if ( ! empty( $this->query_vars['path'] ) ) {
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$this->sql_clauses['where']['path'] = $wpdb->prepare( 'path = %s', $this->query_vars['path'] );
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}
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// Parse site path for an IN clause.
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if ( is_array( $this->query_vars['path__in'] ) ) {
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$this->sql_clauses['where']['path__in'] = "path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )";
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}
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// Parse site path for a NOT IN clause.
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if ( is_array( $this->query_vars['path__not_in'] ) ) {
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$this->sql_clauses['where']['path__not_in'] = "path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )";
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}
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if ( is_numeric( $this->query_vars['archived'] ) ) {
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$archived = absint( $this->query_vars['archived'] );
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$this->sql_clauses['where']['archived'] = $wpdb->prepare( "archived = %d ", $archived );
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}
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if ( is_numeric( $this->query_vars['mature'] ) ) {
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$mature = absint( $this->query_vars['mature'] );
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$this->sql_clauses['where']['mature'] = $wpdb->prepare( "mature = %d ", $mature );
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}
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if ( is_numeric( $this->query_vars['spam'] ) ) {
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$spam = absint( $this->query_vars['spam'] );
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$this->sql_clauses['where']['spam'] = $wpdb->prepare( "spam = %d ", $spam );
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}
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if ( is_numeric( $this->query_vars['deleted'] ) ) {
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$deleted = absint( $this->query_vars['deleted'] );
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$this->sql_clauses['where']['deleted'] = $wpdb->prepare( "deleted = %d ", $deleted );
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}
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if ( is_numeric( $this->query_vars['public'] ) ) {
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$public = absint( $this->query_vars['public'] );
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$this->sql_clauses['where']['public'] = $wpdb->prepare( "public = %d ", $public );
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}
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// Falsey search strings are ignored.
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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
|
|
* @access private
|
|
*
|
|
* @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
|
|
* @access protected
|
|
*
|
|
* @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
|
|
* @access protected
|
|
*
|
|
* @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
|
|
* @access protected
|
|
*
|
|
* @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';
|
|
}
|
|
}
|
|
}
|