/**
  * Sends all of the SystemEventMessages that were not received.
  * 
  * 
  */
 public static function sendUnsentSystemEventInstanceMessages()
 {
     $messages = \SystemEventInstanceMessageQuery::create()->filterByReceived(false)->find();
     foreach ($messages as $message) {
         /* @var $message SystemEventInstanceMessage */
         try {
             $message->send();
         } catch (\Exception $e) {
         }
     }
 }
 /**
  * If this collection has already been initialized with
  * an identical criteria, it returns the collection.
  * Otherwise if this SystemEventInstance is new, it will return
  * an empty collection; or if this SystemEventInstance has previously
  * been saved, it will retrieve related SystemEventInstanceMessages from storage.
  *
  * This method is protected by default in order to keep the public
  * api reasonable.  You can provide public methods for those you
  * actually need in SystemEventInstance.
  *
  * @param      Criteria $criteria optional Criteria object to narrow the query
  * @param      PropelPDO $con optional connection object
  * @param      string $join_behavior optional join type to use (defaults to Criteria::LEFT_JOIN)
  * @return PropelObjectCollection|SystemEventInstanceMessage[] List of SystemEventInstanceMessage objects
  */
 public function getSystemEventInstanceMessagesJoinSystemEventSubscription($criteria = null, $con = null, $join_behavior = Criteria::LEFT_JOIN)
 {
     $query = SystemEventInstanceMessageQuery::create(null, $criteria);
     $query->joinWith('SystemEventSubscription', $join_behavior);
     return $this->getSystemEventInstanceMessages($query, $con);
 }
 /**
  * Removes this object from datastore and sets delete attribute.
  *
  * @param      PropelPDO $con
  * @return void
  * @throws PropelException
  * @throws Exception
  * @see        BaseObject::setDeleted()
  * @see        BaseObject::isDeleted()
  */
 public function delete(PropelPDO $con = null)
 {
     if ($this->isDeleted()) {
         throw new PropelException("This object has already been deleted.");
     }
     if ($con === null) {
         $con = Propel::getConnection(SystemEventInstanceMessagePeer::DATABASE_NAME, Propel::CONNECTION_WRITE);
     }
     $con->beginTransaction();
     try {
         $deleteQuery = SystemEventInstanceMessageQuery::create()->filterByPrimaryKey($this->getPrimaryKey());
         $ret = $this->preDelete($con);
         // symfony_behaviors behavior
         foreach (sfMixer::getCallables('BaseSystemEventInstanceMessage:delete:pre') as $callable) {
             if (call_user_func($callable, $this, $con)) {
                 $con->commit();
                 return;
             }
         }
         if ($ret) {
             $deleteQuery->delete($con);
             $this->postDelete($con);
             // symfony_behaviors behavior
             foreach (sfMixer::getCallables('BaseSystemEventInstanceMessage:delete:post') as $callable) {
                 call_user_func($callable, $this, $con);
             }
             $con->commit();
             $this->setDeleted(true);
         } else {
             $con->commit();
         }
     } catch (Exception $e) {
         $con->rollBack();
         throw $e;
     }
 }