I need to add some parameter to url by using render in a Yii2 controller action. For example add cat=all parameter to following url:
localhost/sell/frontend/web/index.php?r=product/index
and this is my index action :
return $this->render('index', [
'product' => $product,
]);
You can create URL like below:
yii\helpers\Url::toRoute(['product/index', 'cat' => 'all']);
You can redirect in controller like below:
$this->redirect(yii\helpers\Url::toRoute(['product/index', 'cat' => 'all']));
Then render your view.
To generate url using the Yii2 yii\helpers\Url to() or toRoute() method:
$url = yii\helpers\Url::to(['product/index', 'cat' => 'all']);
or:
$url = yii\helpers\Url::toRoute(['product/index', 'cat' => 'all']);
And you can then redirect in controller:
return $this->redirect($url);
Also note that the controller redirect() method is merely a shortcut to yii\web\Response::redirect(), which in turn passes it's first argument to: yii\helpers\Url::to(), so you can feed your route array in directly like so:
return $this->redirect(['product/index', 'cat' => 'all']);
Please Note: the other answer by @ali-masudianpour may have been correct in earliest versions of Yii2, but in later versions of Yii2 (including latest - 2.0.15 at time of writing), the Url helper methods only accept unidimensional arrays, which are in turn passed into yii\web\UrlManager methods like createUrl.
You can make redirect route into your controller like this:
$this->redirect(yii\helpers\Url::toRoute(['product/index', 'cat' => 'all']));
