/**
* To validate the user name
* and password is valids or not
* @param <string> $username
* @param <string> $password
*/
public function userAuthenticate($username, $password)
{
$db_adapter = Application_Model_DbTable_DbUsers::getDefaultAdapter();
$auth_adapter = new Zend_Auth_Adapter_DbTable($db_adapter);
$auth_adapter->setTableName($this->_name)->setIdentityColumn('user_name')->setCredentialColumn('password')->setCredentialTreatment('MD5(?) AND active=1');
// optional if password has been hashed
$auth_adapter->setIdentity($username);
// set value of username field
$auth_adapter->setCredential($password);
// set value of password field
//instantiate Zend_Auth class
$auth = Zend_Auth::getInstance();
$result = $auth->authenticate($auth_adapter);
if ($result->isValid()) {
return true;
} else {
return false;
}
}