Controller action redirection when called via route

Question

I have a route set up in routes.php that calls a controller action using something similar to what is described here: https://straightupcraft.com/articles/how-do-i-setup-a-route-to-point-to-a-controller-action-instead-of-a-template

This works much better for my purposes than POSTing a form to the controller. However, I'm not sure how best to handle redirects. Ideally I would like to redirect back to the page where the user clicked on the link, but calling

$this->redirectToPostedUrl()

doesn't work when using a route like this. The URL just remains the URL as defined in the route.

Is there a different method I can use to make sure users are returned to the page where they were when they clicked the link?

Answer 1

You're mistaken about how redirectToPostedUrl works... That's designed to redirect from a form submission, when the redirect field was supplied:

<input type="hidden" name="redirect" value="page/to/redirect/to"> 

What you really want is this:

$this->redirect(craft()->request->getUrlReferrer());

The request->getUrlReferrer method will actually retrieve the originating page URL.

Answer 2

In case you need this for CraftCMS version 3, as I did today, the code slightly changed:

$this->redirect(Craft::$app->getRequest()->referrer);

This works fine with version 3.