Exception notifier - how to display own error pages? - ruby-on-rails-3

Question

I use exception_notification gem for handling an errors in an app.
My ApplicationController looks like this:
unless Rails.application.config.consider_all_requests_local
rescue_from Exception,
:with => :render_error
rescue_from ActiveRecord::RecordNotFound,
:with => :render_not_found
rescue_from ActionController::RoutingError,
:with => :render_not_found
rescue_from ActionController::UnknownController,
:with => :render_not_found
rescue_from ActionController::UnknownAction,
:with => :render_not_found
end
def render_not_found(exception)
ExceptionNotifier::Notifier
.exception_notification(request.env, exception)
.deliver
render :template => "/errors/404.html.erb",
:layout => 'errors.html.erb'
return
end
def render_error(exception)
ExceptionNotifier::Notifier
.exception_notification(request.env, exception)
.deliver
render :template => "/errors/500.html.erb",
:layout => 'errors.html.erb'
return
end
In /config/enviroments/productions.rg in the end of the file I have:
config.middleware.use ExceptionNotifier,
:email_prefix => "[MY APP| Error Report] ",
:sender_address => %{"MY APP" <err#my-app.com>},
:exception_recipients => 'my_email#gmail.com'
end
when I get the error on the app - eg. Article.find(not-existing-ID), I'll get the standard error page (ERROR 500) from /public/500.html and not from the file specified in application controller... How is that possible? Past hours I tried to find the problem, but I still don't know the issue.

Answer 1

This works for me - from application_controller.rb:
unless Rails.application.config.consider_all_requests_local
rescue_from Exception, with: :render_500
rescue_from ActionController::RoutingError, with: :render_404
rescue_from ActionController::UnknownController, with: :render_404
rescue_from ActionController::UnknownAction, with: :render_404
rescue_from ActiveRecord::RecordNotFound, with: :render_404
end
and
private
def render_404(exception)
ExceptionNotifier::Notifier.exception_notification(request.env, exception,
:data => {:User => current_user.full_name, :Email => current_user.email, :UserID => current_user.id}).deliver
#not_found_path = exception.message
respond_to do |format|
format.html { render template: 'pages/404', layout: 'layouts/application', status: 404 }
format.all { render nothing: true, status: 404}
end
end
def render_500(exception)
ExceptionNotifier::Notifier.exception_notification(request.env, exception,
:data => {:User => current_user.full_name, :Email => current_user.email, :UserID => current_user.id}).deliver
#error = exception
respond_to do |format|
format.html { render template: 'pages/500', layout: 'layouts/application', status: 500 }
format.all { render nothing: true, status: 500}
end
end
Note: I have my custom error pages in /app/views/pages. Called 500.html.haml and 404.html.haml
I also have this in my routes.rb (note a hash after 'pages rather than a forward-slash):
unless Rails.application.config.consider_all_requests_local
match '*not_found', to: 'pages#404'
end
PS. See updated instructions here: http://ramblinglabs.com/blog/2012/01/rails-3-1-adding-custom-404-and-500-error-pages

Answer 2

Hi this works for me try it!
In the application_controller.rb you can add these codes:
if Rails.env.production?
unless Rails.application.config.consider_all_requests_local
rescue_from Exception, with: :render_500
rescue_from ActionController::RoutingError, with: :render_404
rescue_from ActionController::UnknownController, with: :render_404
rescue_from ActionController::UnknownAction, with: :render_404
rescue_from ActiveRecord::RecordNotFound, with: :render_404
end
end
This codes checks if you are running your rails app using production mode and catches different rescue errors.
In the same controller "application_controller.rb" add these codes:
def render_404(exception)
#not_found_path = exception.message
respond_to do |format|
format.html { render template: 'errors/not_found', layout: 'layouts/application', status: 404 }
format.all { render nothing: true, status: 404 }
end
end
def render_500(exception)
logger.info exception.backtrace.join("\n")
respond_to do |format|
format.html { render template: 'errors/internal_server_error', layout: 'layouts/application', status: 500 }
format.all { render nothing: true, status: 500}
end
end
These methods will specify the page you want to display when your app catches an error,
then create a controller named: errors_controller.rb
then in your app/view/errors
create a file named:
internal_server_error.html.erb
and
not_found.html.erb
and in your routes.rb
add these codes:
match '/internal_server_error', :to => 'errors#internal_server_error'
match '/not_found', :to => 'errors#not_found'