Current File : /home/vacivi36/ava/cache/tests/fixtures/cache_phpunit_dummy_datasource_versionable.php
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* A dummy datasource which supports versioning.
*
* @package core_cache
* @copyright 2021 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class cache_phpunit_dummy_datasource_versionable extends cache_phpunit_dummy_datasource
implements cache_data_source_versionable {
/** @var array Data in cache */
protected $data = [];
/** @var cache_phpunit_dummy_datasource_versionable Last created instance */
protected static $lastinstance;
/**
* Returns an instance of this object for use with the cache.
*
* @param cache_definition $definition
* @return cache_phpunit_dummy_datasource New object
*/
public static function get_instance_for_cache(cache_definition $definition):
cache_phpunit_dummy_datasource_versionable {
self::$lastinstance = new cache_phpunit_dummy_datasource_versionable();
return self::$lastinstance;
}
/**
* Gets the last instance that was created.
*
* @return cache_phpunit_dummy_datasource_versionable
*/
public static function get_last_instance(): cache_phpunit_dummy_datasource_versionable {
return self::$lastinstance;
}
/**
* Sets up the datasource so that it has a value for a particular key.
*
* @param string $key Key
* @param int $version Version for key
* @param mixed $data
*/
public function has_value(string $key, int $version, $data): void {
$this->data[$key] = new \core_cache\version_wrapper($data, $version);
}
/**
* Loads versioned data.
*
* @param int|string $key Key
* @param int $requiredversion Minimum version number
* @param mixed $actualversion Should be set to the actual version number retrieved
* @return mixed Data retrieved from cache or false if none
*/
public function load_for_cache_versioned($key, int $requiredversion, &$actualversion) {
if (!array_key_exists($key, $this->data)) {
return false;
}
$value = $this->data[$key];
if ($value->version < $requiredversion) {
return false;
}
$actualversion = $value->version;
return $value->data;
}
}
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