Rails Tip #1: Clean Configuration Values
Rails Configuration Values
Source:
First, we define a default value for all environments in config/application.rb:
module Configurator
class Application < Rails::Application
# By default, let OSX resolve the path to the binary
config.wkhtmltopdf = "wkhtmltopdf"
end
end
Then we override the default setting as necessary in config/environments/:
Configurator::Application.configure do
# Settings specified here will take precedence over those in config/application.rb
# Point Heroku explicitly to the binary we need to use
config.wkhtmltopdf = "#{Rails.root}/bin/wkhtmltopdf"
end
Lastly, we access the configuration element in our code:
cmd = [Configurator::Application.config.wkhtmltopdf, url, tmpfile.path]
Yes, that’s it. Just use Rails’s environment support and config to store your own configuration.