CODEWITHSUNDEEP
yii2
No Imo
No Imo

Reputation: 31

Value is null when passing from controller to view in Yii

Why can't I pass a value from the controller to a view? The value is not null, but it seems that the value is not passed to the view page. Why?

Below is my code:

Controller (SiteController.php):

public function actionProfileuser()
{
    $session = Yii::$app->session;

    if($session['UserID'] == null){
        Yii::$app->user->logout();
        return $this->goHome();
    }
    else
    {
        //$model = User::find()->where(['ID'=>$session['UserID']])->all();
        //$model = new User;
        $model = (new \yii\db\Query())
            ->from('tbl_user')
            ->where(['ID' => $session['UserID']])
            ->all();
        return $this->render('profileuser', [
            'model' => $model,
        ]);
    }
}

View (profileuser.php):

<?= $model->Name; ?>

Upvotes: 1

Views: 413

Answers (2)

rob006
rob006

Reputation: 22174

You should use code similar to what is generated by Gii:

$model = User::findOne($session['UserID']);
if ($model === null) {
    throw new ForbiddenHttpException('You are not authorized to view this page.');
}

It will fetch the User model from the database and throw an exception if the requested user does not exist.

one() or findOne() does not guarantee that it will return non-null, so you need to check it yourself.

\yii\db\Query() is for raw queries. It will not return you a model. In the best case you will get a query result as an array.

Upvotes: 0

ScaisEdge
ScaisEdge

Reputation: 133400

In your controller you retrieve a collections of models, all(). If you need just one, use one():

public function actionProfileuser()
{
    $session = Yii::$app->session;

    if($session['UserID'] == null){
        Yii::$app->user->logout();
        return $this->goHome();
    }
    else
    {
        //$model = User::find()->where(['ID'=>$session['UserID']])->all();
        //$model = new User;
        $model = (new \yii\db\Query())
            ->from('tbl_user')
            ->where(['ID' => $session['UserID']])
            ->one(); // <---------- use one()
        return $this->render('profileuser', [
            'model' => $model,
        ]);
    }
}

View (profileuser.php):

<?= $model['Name']; ?>

Or using all, you should iterate over the modes. Fr showing all the results:

foreach( $model AS $key => $value){

    echo $value->name;
}

Upvotes: 2

Related Questions