XF 2.2 rerouteController not reReouting

[Dannymh]

Hi,

I have the following code in my controller class (extends abstractContrller as this is a custom controller)

        if($params->slug)
        {
            return $this->rerouteController(__CLASS__, 'actionView', $params);
        }

Then I have the public function inside that class

    public function actionView(ParameterBag $params)
    {
       echo "That worked";
    }

I have a route in place that lets call it
content

Content has a route path of
:int<slug>/:page

Now when I call a Url of something like
mysite.com/content/this-slug

My code will recognise the param and that there is a slug there, but instead of re-routing to actionView it returns an oops error that instead says

The requested page could not be found. (Code: invalid_action, controller: Silvertails\Content:Content, action: ThisSlug)

So instead of calling the actionView its trying to use the slug as the controller action from the param. Am I using this wrong? I assumed I could use that variant slug to still call the view action without needing to explicitly route for it or have I wildly misunderstood this.

What I am trying to do is avoid having to set up an additional route and have it call the route/function I want based on the presence of the slug param. I cold avoid this by setting up a route such as content/view/slug but this wouldn't be ideal