protected function setImage(array $data, $field_value_id = null)
    {
        if (!empty($data['images']) && !empty($field_value_id)) {
            $this->file->delete(array('entity' => 'field_value', 'entity_id' => $field_value_id));
        }

        return $this->setImages($data, $this->file, 'field_value');
    }