/**
  * Changes the ships of a fleet.
  * 
  * @param	array	associative array
  */
 public function updateShips($ships)
 {
     $fleet = $this->fleet;
     $changedShips = Spec::diff($fleet, $ships);
     $inserts = "";
     $deletes = "";
     foreach ($changedShips as $specID => $shipCount) {
         // add/change
         if (!empty($specID)) {
             if ($shipCount > 0) {
                 if (!empty($inserts)) {
                     $inserts .= ",";
                 }
                 $inserts .= "(" . $this->fleetID . ", " . $specID . ", " . $shipCount . ")";
             } else {
                 if (!empty($deletes)) {
                     $deletes .= ",";
                 }
                 $deletes .= "(" . $this->fleetID . ", " . $specID . ")";
             }
         }
         if (!$shipCount) {
             unset($fleet[$specID]);
         } else {
             $fleet[$specID] = $shipCount;
         }
     }
     $this->fleet = $fleet;
     if (!empty($inserts)) {
         $sql = "REPLACE INTO ugml_fleet_spec\n\t\t\t\t\t(fleetID, specID, shipCount)\n\t\t\t\t\tVALUES " . $inserts;
         WCF::getDB()->sendQuery($sql);
     }
     if (!empty($deletes)) {
         $sql = "DELETE FROM ugml_fleet_spec\n\t\t\t\t\tWHERE (fleetID, specID) IN (" . $deletes . ")";
         WCF::getDB()->sendQuery($sql);
     }
     FleetLog::update($this->getObject());
 }
 /**
  * Logs this object.
  */
 public function execute($data)
 {
     parent::execute($data);
     $this->addData(array('thispr' => print_r($this, true)));
     FleetLog::update($this);
 }