/**
  * 	Delete the image on disk
  *
  * @param string $file_path the image file path
  * @param array $image_types The different sizes
  * @param string $parent_path The parent path
  * @return bool
  */
 protected function deleteImageOnDisk($file_path, $image_types = null, $parent_path = null)
 {
     $this->wsObject->setOutputEnabled(false);
     if (file_exists($file_path)) {
         // delete image on disk
         @unlink($file_path);
         // Delete declinated image if needed
         if ($image_types) {
             foreach ($image_types as $image_type) {
                 if ($this->defaultImage) {
                     // @todo products images too !!
                     $declination_path = $parent_path . $this->wsObject->urlSegment[3] . '-default-' . $image_type['name'] . '.jpg';
                 } else {
                     $declination_path = $parent_path . $this->wsObject->urlSegment[2] . '-' . $image_type['name'] . '.jpg';
                 }
                 if (!@unlink($declination_path)) {
                     $this->objOutput->setStatus(204);
                     return false;
                 }
             }
         }
         return true;
     } else {
         $this->objOutput->setStatus(204);
         return false;
     }
 }