Having both a require and a controller in a directive

I’ve been playing around with AngularJS directives a lot recently trying to modularize out some commonly used bits of code – particularly form validation stuff. As part of this I often want a controller in the directive (so I have child scopes reach in and add elements or trigger events), but I also want to be able to access some parent angular things such as the ‘form’ directive’s controller.

Typically if you have a controller in a directive it gets passed in as the 4th argument to the link function eg:

However if you have a require argument it also gets passed in as the 4th element in link which unfortunately trumps our controller:

I couldn’t find anything else referencing this problem on the internet, so as a hunch I tried (what turned out to be correct) multiple require arguments including requiring the directive itself:

Hopefully this helps someone!