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Defining Application Constants for Ruby on Rails Application

       

The best place to keep application constants which are environment specific is in config/environments directory. For instance...

in RAILS_ROOT/config/environments/development.rb

APP_DOMAIN = "localhost"

in RAILS_ROOT/config/environments/production.rb

APP_DOMAIN = "real-domain.com"

...will set the APP_DOMAIN constant to either "localhost" or "real-domain.com" depending on which environment Rails boots up.

Tagged w/ #constants #deployment #development #localhost #productionruby on rails