This came in handy for me, so I wanted to share this particular way of handling 404 and 500 errors.
First, rescue errors and tell what to do in application_controller.rb.
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 |
In the same application_controller.rb, then you create the methods specified above.
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 |
Since it’s using the application layout, you will see the error message you specify in the layout. The following is my 500 error page, /views/errors/internal_server_error.html.haml. For 404 page, you can also use @not_found_path instance variable in the view as well.
#errors-page .thumbnail.errors .errors-500 .caption %h5 Sorry %h1 500 Internal Server Error - # Do not remove this line. It is used for development - # purposes. When an error is found. In development, it - # shows the logs, in production it is nil. .error-msg = @log |
Cheers,
