/**
* Compare two deliveryExecution by their start timestamp.
* CAUTION: getStartTime() is not cached at this moment, so it request the DB on each call
* @param DeliveryExecution $a
* @param DeliveryExecution $b
* @return int
*/
public function cmpDeliveryExecution($a, $b)
{
return DateHelper::getTimeStamp($b->getStartTime()) - DateHelper::getTimeStamp($a->getStartTime());
}
/**
* Update start time of delivery execution
*/
private function updateStartTime()
{
list($usec, $sec) = explode(" ", $this->deliveryExecution->getStartTime());
$startTime = (double) $usec + (double) $sec;
$this->addValue(DeliveryMonitoringService::START_TIME, $startTime, true);
}
