How to Transition to (the current) route

In my app I'm able to select a " group" model from anywhere in the app. All groups are loaded into the application's model hook, and then the selectedGroup is saved as a property in the application controller.

A lot of the routes have models that are dependent on the selectedGroup, so when a new group is chosen, I need to reload the current route. From what I've been able to read, the best way to achieve this is to just to transitionToRoute.

Is this the best way to do things? And how do I get the current route, in order to then re - transition to it.

Please comment if further explanation needed! Thanks!