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1 <?php 2 /** 3 * Network API 4 * 5 * @package WordPress 6 * @subpackage Multisite 7 * @since 5.1.0 8 */ 9 10 /** 11 * Retrieves network data given a network ID or network object. 12 * 13 * Network data will be cached and returned after being passed through a filter. 14 * If the provided network is empty, the current network global will be used. 15 * 16 * @since 4.6.0 17 * 18 * @global WP_Network $current_site 19 * 20 * @param WP_Network|int|null $network Optional. Network to retrieve. Default is the current network. 21 * @return WP_Network|null The network object or null if not found. 22 */ 23 function get_network( $network = null ) { 24 global $current_site; 25 if ( empty( $network ) && isset( $current_site ) ) { 26 $network = $current_site; 27 } 28 29 if ( $network instanceof WP_Network ) { 30 $_network = $network; 31 } elseif ( is_object( $network ) ) { 32 $_network = new WP_Network( $network ); 33 } else { 34 $_network = WP_Network::get_instance( $network ); 35 } 36 37 if ( ! $_network ) { 38 return null; 39 } 40 41 /** 42 * Fires after a network is retrieved. 43 * 44 * @since 4.6.0 45 * 46 * @param WP_Network $_network Network data. 47 */ 48 $_network = apply_filters( 'get_network', $_network ); 49 50 return $_network; 51 } 52 53 /** 54 * Retrieves a list of networks. 55 * 56 * @since 4.6.0 57 * 58 * @param string|array $args Optional. Array or string of arguments. See WP_Network_Query::parse_query() 59 * for information on accepted arguments. Default empty array. 60 * @return array|int List of WP_Network objects, a list of network IDs when 'fields' is set to 'ids', 61 * or the number of networks when 'count' is passed as a query var. 62 */ 63 function get_networks( $args = array() ) { 64 $query = new WP_Network_Query(); 65 66 return $query->query( $args ); 67 } 68 69 /** 70 * Removes a network from the object cache. 71 * 72 * @since 4.6.0 73 * 74 * @global bool $_wp_suspend_cache_invalidation 75 * 76 * @param int|array $ids Network ID or an array of network IDs to remove from cache. 77 */ 78 function clean_network_cache( $ids ) { 79 global $_wp_suspend_cache_invalidation; 80 81 if ( ! empty( $_wp_suspend_cache_invalidation ) ) { 82 return; 83 } 84 85 $network_ids = (array) $ids; 86 wp_cache_delete_multiple( $network_ids, 'networks' ); 87 88 foreach ( $network_ids as $id ) { 89 /** 90 * Fires immediately after a network has been removed from the object cache. 91 * 92 * @since 4.6.0 93 * 94 * @param int $id Network ID. 95 */ 96 do_action( 'clean_network_cache', $id ); 97 } 98 99 wp_cache_set( 'last_changed', microtime(), 'networks' ); 100 } 101 102 /** 103 * Updates the network cache of given networks. 104 * 105 * Will add the networks in $networks to the cache. If network ID already exists 106 * in the network cache then it will not be updated. The network is added to the 107 * cache using the network group with the key using the ID of the networks. 108 * 109 * @since 4.6.0 110 * 111 * @param array $networks Array of network row objects. 112 */ 113 function update_network_cache( $networks ) { 114 $data = array(); 115 foreach ( (array) $networks as $network ) { 116 $data[ $network->id ] = $network; 117 } 118 wp_cache_add_multiple( $data, 'networks' ); 119 } 120 121 /** 122 * Adds any networks from the given IDs to the cache that do not already exist in cache. 123 * 124 * @since 4.6.0 125 * @access private 126 * 127 * @see update_network_cache() 128 * @global wpdb $wpdb WordPress database abstraction object. 129 * 130 * @param array $network_ids Array of network IDs. 131 */ 132 function _prime_network_caches( $network_ids ) { 133 global $wpdb; 134 135 $non_cached_ids = _get_non_cached_ids( $network_ids, 'networks' ); 136 if ( ! empty( $non_cached_ids ) ) { 137 $fresh_networks = $wpdb->get_results( sprintf( "SELECT $wpdb->site.* FROM $wpdb->site WHERE id IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared 138 139 update_network_cache( $fresh_networks ); 140 } 141 }
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