Handling 404s when RecordNotFound, UnknownAction and RoutingError
When handling 404s, you want to display the 404 page and return HTTP status 404 when a particular record is not found, the action requested is unknown or if there is a routing error.
Add the following to your application_controller.rb file, towards the end:
class ApplicationController < ActionController::Base
...
rescue_from ActiveRecord::RecordNotFound, :with => :rescue_action_in_public
private
# handles 404 when a record is not found.
def rescue_action_in_public(exception)
case exception
when ActiveRecord::RecordNotFound, ActionController::UnknownAction, ActionController::RoutingError
render :file => "#{RAILS_ROOT}/public/404.html", :layout => 'layouts/application', :status => 404
else
super
end
end
end
