infoweb\cms\models\Image::rules PHP Метод

    public function rules()
    {
        return [[['itemId', 'isMain', 'created_at', 'updated_at'], 'integer'], [['filePath', 'urlAlias'], 'string', 'max' => 400], [['modelName', 'identifier', 'text_position'], 'string', 'max' => 255], ['text_position', 'default', 'value' => self::TEXT_POSITION_LEFT]];
    }