includes/cache/dependency/MainConfigDependency.php

   1 <?php
   2 /**
   3  * Data caching with dependencies.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Cache
  22  */
  23 use MediaWiki\MediaWikiServices;
  24
  25 /**
  26  * @ingroup Cache
  27  */
  28 class MainConfigDependency extends CacheDependency {
  29         private $name;
  30         private $value;
  31
  32         function __construct( $name ) {
  33                 $this->name = $name;
  34                 $this->value = $this->getConfig()->get( $this->name );
  35         }
  36
  37         private function getConfig() {
  38                 return MediaWikiServices::getInstance()->getMainConfig();
  39         }
  40
  41         /**
  42          * @return bool
  43          */
  44         function isExpired() {
  45                 if ( !$this->getConfig()->has( $this->name ) ) {
  46                         return true;
  47                 }
  48
  49                 return $this->getConfig()->get( $this->name ) != $this->value;
  50         }
  51 }