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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of mundschenk-at/wp-data-storage.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Copyright 2018 Peter Putzer.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This program is free software; you can redistribute it and/or  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * modify it under the terms of the GNU General Public License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * as published by the Free Software Foundation; either version 2  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * of the License, or ( at your option ) any later version.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This program is distributed in the hope that it will be useful,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * but WITHOUT ANY WARRANTY; without even the implied warranty of  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * GNU General Public License for more details.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * You should have received a copy of the GNU General Public License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * along with this program; if not, write to the Free Software  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package mundschenk-at/wp-data-storage/tests  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license http://www.gnu.org/licenses/gpl-2.0.html  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Mundschenk\Data_Storage;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Implements an interface to the WordPress Site Transients API.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 1.0.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Peter Putzer <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Site_Transients extends Transients { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	const TRANSIENT_SQL_PREFIX = '_site_transient_';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Retrieves a list of transients set by the plugin from the options table.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return string[]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function get_keys_from_database() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * WordPress database handler.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 * @var \wpdb  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		global $wpdb;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$results = $wpdb->get_results(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$wpdb->prepare(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				"SELECT meta_name FROM {$wpdb->sitemeta} WHERE meta_name like %s and site_id = %d", | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				self::TRANSIENT_SQL_PREFIX . "{$this->get_prefix()}%", \get_current_network_id() | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			ARRAY_A  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		); // WPCS: db call ok, cache ok.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return \str_replace( self::TRANSIENT_SQL_PREFIX, '', \wp_list_pluck( $results, 'meta_name' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Retrieves a cached value.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $key The cache key.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param bool   $raw Optional. Use the raw key name (i.e. don't call get_key). Default false.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return mixed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function get( $key, $raw = false ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return \get_site_transient( $raw ? $key : $this->get_key( $key ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Sets an entry in the cache and stores the key.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $key       The cache key.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param mixed  $value     The value to store.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param int    $duration  Optional. The duration in seconds. Default 0 (no expiration).  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param bool   $raw       Optional. Use the raw key name (i.e. don't call get_key). Default false.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return bool True if the cache could be set successfully.  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	public function set( $key, $value, $duration = 0, $raw = false ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                		return \set_site_transient( $raw ? $key : $this->get_key( $key ), $value, $duration );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Deletes an entry from the cache.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $key The cache key root.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param bool   $raw Optional. Use the raw key name (i.e. don't call get_key). Default false.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return bool True on successful removal, false on failure.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function delete( $key, $raw = false ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return \delete_site_transient( $raw ? $key : $this->get_key( $key ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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