1 <?php
 2 /**
 3  * Remove all cached/generated images that have been created as the result of a manipulation method being called on a
 4  * {@link Image} object
 5  *
 6  * @package sapphire
 7  * @subpackage filesystem
 8  */
 9 class FlushGeneratedImagesTask extends BuildTask {
10     
11     protected $title = 'Flush Generated Images Task';
12     
13     protected $description = 'Remove all cached/generated images created as the result of an image manipulation';
14     
15     /**
16      * Check that the user has appropriate permissions to execute this task
17      */
18     public function init() {
19         if(!Director::is_cli() && !Director::isDev() && !Permission::check('ADMIN')) {
20             return Security::permissionFailure();
21         }
22         
23         parent::init();
24     }
25     
26     /**
27      * Actually clear out all the images
28      */
29     public function run($request) {
30         $processedImages = 0;
31         $removedItems    = 0;
32         
33         if($images = DataObject::get('Image')) foreach($images as $image) {
34             if($deleted = $image->deleteFormattedImages()) {
35                 $removedItems += $deleted;
36             }
37             
38             $processedImages++;
39         }
40         
41         echo "Removed $removedItems generated images from $processedImages Image objects stored in the Database.";
42     }
43     
44 }