Rexception

Rexception is a Rails plugin that renders error pages dynamically, such as 403, 404, 500, and so on.

Add this line to your application's Gemfile:

gem 'rexception'

And then execute:

$ bundle

The simplest way, just add app/views/errors/application.html.erb. That's it, and Rails application render it when raise any errors.

If you placed specific views, such as forbidden.html.erb or not_found.html.erb, Rexception prefers these views to application.html.erb. (File name is see also: ActionDispatch::ExceptionWrapper.rescue_responses)

And you can specify layout file name, directory name to place views, and custom exceptions. Create config/initializers/rexception.rb and add following lines:

Rexception.configure do |config|
  # Layout file name to use for rendering error page.
  config.layout = 'application'

  # Directory name where you place error pages.
  config.errors_dir = 'errors_dir'

  # Pairs of custom exceptions and statuses.
  config.rescue_responses = {
    'CustomException' => :not_found
  }
end

In development mode, you should add this line to config/environments/development.rb to render error pages:

config.consider_all_requests_local = false

1. Fork it ( https://github.com/kami-zh/rexception/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request