MageConfigSync\Magento::getDatabaseWriteConnection PHP Méthode

    public function getDatabaseWriteConnection()
    {
        $this->getMagentoEnvironment();
        return \Mage::getModel('core/resource')->getConnection('core_write');
    }

 /**
  * @param $path
  * @param $scope
  * @param $scope_id
  *
  * @return int Number of affected rows
  */
 public function deleteValue($path, $scope, $scope_id)
 {
     $write = $this->_magento->getDatabaseWriteConnection();
     return $write->delete($this->_table_name, array('scope = ?' => $scope, 'scope_id = ?' => $scope_id, 'path = ?' => $path));
 }