public function getImagesArray()
    {
        if ($this->_imagesArray === null) {
            $this->_imagesArray = $this->getQueryCacheHelper((new Query())->from('{{%admin_storage_image}}')->select(['id', 'file_id', 'filter_id', 'resolution_width', 'resolution_height'])->indexBy('id'), self::CACHE_KEY_IMAGE);
        }

        return $this->_imagesArray;
    }