/**
  * Called when user wishes to log in. Calls \model\LoginModel 
  * for verification of input data from user.
  *
  * Sets \view\LoginView message
  */
 private function login()
 {
     $username = $this->logView->getUsername();
     $password = $this->logView->getPassword();
     $persistentLogin = $this->logView->isSetPersistentLogin();
     $this->logModel->verifyLoginCredentials($username, $password, $persistentLogin);
     if (!$persistentLogin) {
         $this->logView->setMsgWelcome();
     } else {
         $this->logView->setMsgWelcomeAndRemembered();
     }
 }