Cleaning up my controllers, can I have Merb style action defs today?

Question

In Rail 2.3.2 can I have merb style action definitions:

Eg: instead of

def show
  @user = User.find(params[:id])
end

Can I have:

def show(id)
  @user = User.find(id) 
end

What kind of crazy monkey patching do I need to do to get this working, note I only need this working for MRI so ParseTree is an option.

Note: there is a Rails 3 port of this functionality now.

Answer 1

I am running Rails 2.3.3 and User.find(id) works just fine.

Answer 2

EDIT: I was wrong: Method#parameters has been added to Ruby 1.9.2.

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Original:

No, this is not possible in Rails.

There is almost zero chance of this making it into Rails 3.0. merb-action-args used ParseTree which doesn't and will not work on Ruby 1.9, therefore making it unlikely that it will be included in Rails.

Answer 3

You could change all params in to instance var's (eg. @id) in a before_filter...