/**
* @return string|\yii\web\Response
*/
public function actionLogin()
{
$model = new UserLoginForm();
if ($model->whetherLoggedIn()) {
Yii::$app->session->setFlash('success', '您之前已经登录该网站,如果想重新登录请先退出！');
return $this->redirect(['show/index']);
}
if (!empty(Yii::$app->request->get('from'))) {
$from = Yii::$app->request->get('from');
}
if ($model->load(Yii::$app->request->post())) {
if ($model->login()) {
Yii::$app->session['__username'] = $model->username;
Yii::$app->session['isLogin'] = true;
if (!empty($from) && SaveUrl::isSafeUrl($from)) {
return $this->redirect($from);
}
Yii::$app->getSession()->setFlash('success', '登录成功！');
return $this->redirect(['show/index']);
} else {
Yii::$app->getSession()->setFlash('error', '登录失败，请重新登录！');
}
}
return $this->render('login', ['model' => $model, 'from' => isset($from) ? $from : null]);
}
