Yarik / artbox

  <?php
      

      namespace artweb\artbox\behaviors;

      
      use yii\base\Behavior;
      use yii\base\Event;
      use yii\db\ActiveRecord;

      /**
       * Class ImageBehavior

       *

       * @package artweb\artbox\behaviors

       */
      class ImageBehavior extends Behavior
      {

          /**
           * @var string column where file name is stored
           */
          public $link;

          /**
           * @var string directory name
           */
          public $directory;

          
          /**
           * @var string Image path for dummy
           */

          public $dummy_path = '/storage/image-not-found.png';

          /**
           * @inheritdoc
           */
          public function events()
          {
              return [
                  ActiveRecord::EVENT_BEFORE_DELETE => 'beforeDelete',
              ];
          }

          /**
           * @param Event $event
           */
          public function beforeDelete($event)
          {
              $file = $this->getImageFile();

              if (file_exists($file)) {

                  unlink($file);
              }
          }

          /**
           * Get image file path
           *
           * @return null|string
           */
          public function getImageFile()
          {
              $link = $this->link;

              return empty( $this->owner->$link ) ? null : \Yii::getAlias(
                  '@storage/' . $this->directory . '/' . $this->owner->$link
              );

          }
      
          /**
           * Get image file url
           *

           * @param bool $dummy
           *

           * @return null|string
           */

          public function getImageUrl(bool $dummy = true)

          {
              $link = $this->link;

              return empty( $this->owner->$link ) ? ( $dummy ? $this->dummy_path : null ) : '/storage/' . $this->directory . '/' . $this->owner->$link;

          }
      }