DealMergerException::getMessageByCode

protected function getMessageByCode($code)
{
	if($code === self::CONFLICT_OCCURRED_CATEGORY)
	{
		return 'Deals must belong to same category.';
	}
	elseif($code === self::CONFLICT_OCCURRED_RECURRENCE)
	{
		return 'Deals must have same recurrence statuses.';
	}
	return parent::getMessageByCode($code);
}