I've got the following error:
ActionController::RoutingError (No route matches [GET] "/images/favicon.ico")
I want to show error404 page for links that are not existing.
How can I achieve that?
In application_controller.rb
add the following:
# You want to get exceptions in development, but not in production.
unless Rails.application.config.consider_all_requests_local
rescue_from ActionController::RoutingError, with: -> { render_404 }
end
def render_404
respond_to do |format|
format.html { render template: 'errors/not_found', status: 404 }
format.all { render nothing: true, status: 404 }
end
end
I usually also rescue following exceptions, but that's up to you:
rescue_from ActionController::UnknownController, with: -> { render_404 }
rescue_from ActiveRecord::RecordNotFound, with: -> { render_404 }
Create the errors controller:
class ErrorsController < ApplicationController
def error_404
render 'errors/not_found'
end
end
Then in routes.rb
unless Rails.application.config.consider_all_requests_local
# having created corresponding controller and action
get '*path', to: 'errors#error_404', via: :all
end
And the last thing is to create not_found.html.haml
(or whatever template engine you use) under /views/errors/
:
%span 404
%br
Page Not Found