before_filter and respond_to formats

Question

In a controller in my Rails app, I can do this:

before_filter :login_required, :except => :index

But I would like to apply the filter not only based on the action name but on the format of the request. In other words, I would like to do something like this:

before_filter :login_required, :except => {:action => :index, :format => :js}

Is this possible?

Answer 1

You'll need to roll your own a bit. Try this as a starting point.

 before_filter :login_required, :except => [:index]

 before_filter(:only => :index) do |controller|
   login_required unless controller.request.format.js?
 end