60 lines
1.8 KiB
PHP
60 lines
1.8 KiB
PHP
<?php
|
|
/**
|
|
* Wipe the cache of failed image manipulations. When {@link GDBackend} attempts to resample an image, it will write
|
|
* the attempted manipulation to the cache and remove it from the cache if the resample is successful. The objective
|
|
* of the cache is to prevent fatal errors (for example from exceeded memory limits) from occurring more than once.
|
|
*
|
|
* @package framework
|
|
* @subpackage filesystem
|
|
*/
|
|
class CleanImageManipulationCache extends BuildTask {
|
|
|
|
protected $title = 'Clean Image Manipulation Cache';
|
|
|
|
protected $description = 'Clean the failed image manipulation cache. Use this to allow SilverStripe to attempt
|
|
to resample images that have previously failed to resample (for example if memory limits were exceeded).';
|
|
|
|
/**
|
|
* Check that the user has appropriate permissions to execute this task
|
|
*/
|
|
public function init() {
|
|
if(!Director::is_cli() && !Director::isDev() && !Permission::check('ADMIN')) {
|
|
return Security::permissionFailure();
|
|
}
|
|
|
|
parent::init();
|
|
}
|
|
|
|
/**
|
|
* Clear out the image manipulation cache
|
|
* @param SS_HTTPRequest $request
|
|
*/
|
|
public function run($request) {
|
|
$failedManipulations = 0;
|
|
$processedImages = 0;
|
|
$images = DataObject::get('Image');
|
|
|
|
if($images && Image::get_backend() == "GDBackend") {
|
|
$cache = SS_Cache::factory('GDBackend_Manipulations');
|
|
|
|
foreach($images as $image) {
|
|
$path = $image->getFullPath();
|
|
|
|
if (file_exists($path)) {
|
|
$key = md5(implode('_', array($path, filemtime($path))));
|
|
|
|
if ($manipulations = unserialize($cache->load($key))) {
|
|
$failedManipulations += count($manipulations);
|
|
$processedImages++;
|
|
$cache->remove($key);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
echo "Cleared $failedManipulations failed manipulations from
|
|
$processedImages Image objects stored in the Database.";
|
|
}
|
|
|
|
}
|