Question

How do I write the controller, routing, or view to present 404s when a routing error occurs?

For example,if the user access a url address

http://0.0.0.0:3000/posts/likes

The likes path isn’t a method in the routing. How do I redirect it to 404 page?

Answer 1

1.In the application_controller.rb

# ..
rescue_from ActiveRecord::RecordNotFound, :with => :record_not_found

private
def record_not_found(e)
  render ‘errors/not_found’, :status => 404
end

2.Create a errors folder and a file named not_found.html.erb

3.Add the source to application_controller.rb

def record_not_found(e)
  render ‘errors/not_found’, :status => 404, :layout => ‘error’
end