Ion Auth - Lightweight Auth System based on Redux Auth 2

[eluser]Maglok[/eluser]
Awesome library.

I have a question. I added a meta to users called 'app_id', which connects the user to an application.

In my delete application function I want to delete both the user and the application. I have the application id, so I am trying to detect if there is a user that has the app_id == application id.

I found the extra_where() function, but I am unsure of how to use it. I could query the meta table and all, but I have a feeling ion auth can do it for me.

This is what I have so far:

Code:

function delete_application($app_id) {
        // Check to see if there is a user connected to the application

        echo $this->ion_auth->extra_where("meta.aanmeldig_id = '" . $app_id . "'");

I need the id of the user that has the application connected to it, so I can do a delete_user.