Base::getGroupByOptions

protected function getGroupByOptions()
{
	if ($this->getView()->getKey() === 'activity')
	{
		return array(
			self::GROUP_BY_DATE => Loc::getMessage('GROUPING_DATE'),
		);
	}
	return array(
		self::GROUP_BY_DATE => Loc::getMessage('GROUPING_DATE'),
		self::GROUP_BY_RESPONSIBLE => Loc::getMessage('GROUPING_RESPONSIBLE'),
		self::GROUP_BY_LINE => Loc::getMessage('GROUPING_LINE'),
		self::GROUP_BY_CHANEL => Loc::getMessage('GROUPING_CHANEL')
	);
}