public static function createPriorityNumber($service_id, $number_start, $number_limit, $last_number_given, $current_number, $date)
 {
     $values = ['service_id' => $service_id, 'number_start' => $number_start, 'number_limit' => $number_limit, 'last_number_given' => $last_number_given, 'current_number' => $current_number, 'date' => $date];
     return PriorityNumber::insertGetId($values);
 }