SqlHelper::addSecondsToDateTime

public function addSecondsToDateTime($seconds, $from = null);

/**
 * Returns function for adding days time interval to $from.
 * 

 * If $from is null or omitted, then current time is used.
 * 

 * $days and $from parameters are SQL unsafe.
 *
 * @abstract
 * @param integer $days How many days to add.
 * @param integer $from Datetime database field of expression.
 *
 * @return string
 */
public function addDaysToDateTime($days, $from = null)
{
	throw new MainNotImplementedException('Method should be implemented in a child class.');
}