How to change the locale through URL?

Question

In my bi-lingual Rails 4 application I have a LocalesController like this:

class LocalesController < ApplicationController

  def change_loca         


        

Answer 1

If you want this behaviour, you are going to have to compare the URL against the session every request. One way you might do it is like this:

before_filter :check_locale
def check_locale
  if session[:locale] != params[:locale] #I'm assuming this exists in your routes.rb
    params[:set_locale] = params[:locale] #Generally bad to assign things to params but it's short for the example
    change_locale
  end
end