Question

Currently, I have a session login method that has environment-specific configurations.

def log_in(user)
  cookies.permanent[:remember_token] = { :value => user.remember_token, :domain => :all }
end

the :domain => differs between :all for production and 'lvh.me' for development.

How can I set up a YAML file that loads the environment-specific configurations, as shown in RailsCast #85?

I tried the code below, but get back unitialized constant RAILS_ENV

app_config.yml

development:
  domain: lvh.me
test:
  domain: :all
production:
  domain:  :all

load_app_config.rb

APP_CONFIG = YAML.load_file(::Rails.root.join('config','app_config.yml'))[RAILS_ENV]

Answer 1

In the end, I went with:

APP_CONFIG = YAML.load_file("#{Rails.root}/config/app_config.yml")[Rails.env].symbolize_keys!