Trying to get property of non-object on Yii2

Question

I want to show data based on user's group id, which is i use

Yii::$app->user->identity->group_id

in my ModelSearch like this :

$query->andFilterWhere([
        ......
        'group_id' => Yii::$app->user->identity->group_id,
        'created_date' => $this->dreated_date,
    ]);

It works when i have session in the application, but when i don't have session the page show error :

Trying to get property of non-object

For 'group_id' => Yii::$app->user->identity->group_id,

How to make the page redirect to login page when i open that page if I don't have any session. Thank You.

EDIT

I added

if (Yii::$app->user->isGuest) {
            return $this->redirect(Yii::$app->user->loginUrl);
}

in every action in my contoller that access ModelSearch .

Answer 1

You can add access control filter for this action.

Add in the controller:

public function behaviors()
{
    return [
        'access' => [
            'class' => \yii\filters\AccessControl::className(),
            'only' => ['ID of your action here'],
            'rules' => [
                // allow authenticated users
                [
                    'allow' => true,
                    'roles' => ['@'],
                ],
            ],
        ],
    ];
}

Or you can add the redirect directly in the action - for example place it at the beginning:

if (Yii::$app->user->isGuest) {
    return $this->redirect(Yii::$app->user->loginUrl);
}