I am currently working on a Rails 4 app and have come to the point where I want to display a custom error page to the user when any exception occurs. Currently it is using the 500.HTML in the public directory.
How can I get the app to render an erb file instead as I want to have some dynamic stuff on the page.
Thanks for you help, Alex
ApplicationController have method rescue_from rescue exceptions raised in controller actions:
in application_controller.rb:
class ApplicationController < ActionController::Base
rescue_from YouAwesome::Exception do |exception|
render_403(exception)
end
def render_403(exception)
logger.warn("Message for log.")
@error_message = exception.message
respond_to do |format|
format.html { render template: 'errors/errors', layout: false, status: 500 }
format.all { render nothing: true, status: 500 }
end
end
end
Now you can create views in errors folder errors.html.erb and render @error_message variable.
That it.
There's an awesome tutorial by Ryan which explains exception handling in rails, have a look at this one http://railscasts.com/episodes/53-handling-exceptions
Jul 04, 2007 , put revised version.