Where/How to code Constants in Rails 3 Application [duplicate]

Answer 1

You don't need to use constants in Rails 3.It is better to use the Rails::Application singleton.

In your application.rb you can define your constante like:

module Yourapp
  class Application < Rails::Application

    config.access_request.review = 'xxx'
  end
end

After in your code you can call

Yourapp::Application.config.access_request.review

After if you change value in each environment, You just define the config.xx in your config/environments/production.rb or other environment.

Answer 2

Belated reply, but posting as this answer still comes up in search results. Putting the constant in the model makes sense as the constant pertains directly to it. Using the Rails application config to store constants is incorrect.

As per the comment listed in application.rb:

# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded

This is still valid as of Rails 3.