/** * Count all salles before a given date * * @param date $before If null, count all operations ever * * @return int */ static function countSallesDaily($before = null) { $salle = new CSalle(); $nb_salles = $salle->countList(); $first_date = self::getMinDate(); $day_relative = CMbDT::daysRelative($first_date, CMbDT::date($before)); return $nb_salles * $day_relative; }