/**
  * Method deletes old row in the mview table and insert new one from view.
  *
  * @return Enterprise_Mview_Model_Action_Mview_Create
  * @throws Enterprise_Mview_Exception
  */
 public function execute()
 {
     $this->_validate();
     $this->_connection->beginTransaction();
     try {
         $this->_connection->delete($this->_metadata->getTableName(), array($this->_metadata->getKeyColumn() . '=?' => $this->_keyColumnIdValue));
         $this->_connection->query($this->_getInsertSql());
         $this->_connection->commit();
     } catch (Exception $e) {
         $this->_connection->rollBack();
         throw new Enterprise_Mview_Exception($e->getMessage(), $e->getCode());
     }
     return $this;
 }
 /**
  * Refresh rows by ids from changelog
  *
  * @return Enterprise_Mview_Model_Action_Mview_Refresh_Changelog
  * @throws Enterprise_Mview_Exception
  */
 public function execute()
 {
     $this->_validate();
     $this->_connection->beginTransaction();
     try {
         $this->_connection->delete($this->_metadata->getTableName(), array($this->_metadata->getKeyColumn() . ' IN ( ' . $this->_selectChangedIds() . ' )'));
         $this->_connection->query($this->_connection->insertFromSelect($this->_selectChangedRows(), $this->_metadata->getTableName()));
         $this->_metadata->setVersionId($this->_selectLastVersionId());
         $this->_metadata->save();
         $this->_connection->commit();
     } catch (Exception $e) {
         $this->_connection->rollBack();
         $this->_metadata->setOutOfDateStatus()->save();
         throw new Enterprise_Mview_Exception($e->getMessage(), $e->getCode());
     }
     return $this;
 }