Question

I am trying to determine whether my controller action was called with parameters or not, without hardcoding which parameters can be added on.

So I want to distinguish between

/my_controller

and

/my_controller?q=1

I know that I could look inside the params hash, and check whether it ONLY contains :controller and :action keys. This seems ugly to me, is there a smarter way of doing this check?

Answer 1

There is one direct solution:

request.env["QUERY_STRING"] # => "q=1"

Or with Ruby 1.9.2:

request.env.QUERY_STRING # => "q=1"