/**
* authenticate the request
*
* @return Zend_Auth_Response
*/
public function authenticate()
{
//authenticate the user
$this->_authAdapter->setIdentity($this->_username);
$this->_authAdapter->setCredential($this->_password);
$result = $this->_authAdapter->authenticate();
if ($result->isValid()) {
//save the user and return the result
$row = $this->_authAdapter->getResultRowObject($this->_resultRowColumns);
$this->_storage->user = $row;
return $result;
}
}
