public function delete_array($array)
 {
     if (!empty($array["id"])) {
         $measurement = apiDB::getMeasurement($array["id"], get_class($this));
         if (empty($measurement->id)) {
             return "Error: \"" . $measurement->columnName() . "\" measurement with id " . $array["id"] . " not found";
         }
         $user = apiDB::getUserByLocationId($measurement->locationid);
         if ($_SERVER['PHP_AUTH_USER'] != $user->email && $this->access <= 1) {
             return "Error: Not authorized to delete " . $measurement->columnName() . " measurement from location " . $measurement->locationid;
         }
         return apiDB::deleteMeasurement($array["id"], $this->tableName());
     }
     return "ERROR: No measurement ID specified for deletion";
 }