/**
  * Verifies the Login of a User by checking it against the Database
  * 
  * @param string $loginName
  * @param string $password
  * @return boolean
  * @throws \InvalidArgumentException
  */
 public function verifyLoginByLoginNameAndPassword($loginName, $password)
 {
     $sql = new Sql($this->dbAdapter);
     $select = $sql->select('tbluser');
     $select->where(array('loginName = ?' => $loginName));
     $stmt = $sql->prepareStatementForSqlObject($select);
     $result = $stmt->execute();
     if ($result instanceof ResultInterface && $result->isQueryResult() && $result->getAffectedRows()) {
         $user = new User();
         $user->exchangeArray($result->current());
         //\Zend\Debug\Debug::dump($password, $label = null, $echo = true);
         if ($this->passwordService->verify($password, $user->getHashedPassword(), $user->getTimestamp())) {
             if ($user->getAktiv() == 1) {
                 return array('user' => $user, 'loginSuccess' => true, 'errors' => array());
             } else {
                 return array('loginSuccess' => false, 'errors' => array('errorMessage' => 'user not active'));
             }
         } else {
             return array('loginSuccess' => false, 'errors' => array('errorMessage' => 'wrong username or password'));
         }
     }
     return array('loginSuccess' => false, 'errors' => array('errorMessage' => 'wrong username or password'));
 }