Rails — Params with “dot” (e.g. /google.com)

Question

How to force Rails to consider a param with a dot in the value like google.com (e.g. /some_action/google.com) a single param and not \"id\" =

Answer 1

And when used with the resources notation, it can be done like this:

resources :post, 
               only: [ :create, :index, :destroy ], 
               constraints: { id: /[0-z\.]+/ }

Tested in Rails 4.1