private function getConditionFormat($operator)
{
$format = null;
switch ($operator) {
case self::OPERATOR_IS_IN:
$format = '%s %s (%s)';
break;
case self::OPERATOR_IS_JSON_CONTAINS:
$format = '%1$s %2$s (%1$s, %3$s)';
break;
default:
$format = '%s %s %s';
break;
}
return $format;
}