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Editorial Team
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Asked: 2026-05-15T03:12:38+00:00

I am working on a Rails application that has user authentication which provides an

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I am working on a Rails application that has user authentication which provides an administrators account. Within the administrators account I have made a page for sitewide settings.

I was wondering what the norm is for creating these settings. Say for example I would like one of the settings to be to change the name of the application name, or change a colour of the header.

What I am looking for is for someone to explain the basic process/method – not necessarily specific code – although that would be great!

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1 Answer

  1. Editorial Team

    For general application configuration that doesn’t need to be stored in a database table, I like to create a config.yml file within the config directory. For your example, it might look like this:

    defaults: &defaults
  app_title: My Awesome App
  header_colour: #fff

development:
  <<: *defaults

test:
  <<: *defaults
  app_title: My Awesome App (TEST ENV)

production:
  <<: *defaults

    This configuration file gets loaded from a custom initializer in config/initializers:

    Rails 2.x:

    APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]

    Rails 3.x:

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

    You can then retrieve the value using:

    title = APP_CONFIG['app_title']

    See this Railscast for full details.

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