Question

Is it possible to use a function as get_by_id_or_404 on rails. For example, in my controller I use :

@destination = Destination.find_by_id(params[:id])

if the id isn’t set or the destination not found, how can I ask Rails to redirect to a 404 page?

Thank you!

Answer 1

In production mode, Rails automatically rescues the ActiveRecord::RecordNotFound exception by rendering the 404 error page.

Simply use the bang version of the finder that raises ActiveRecord::RecordNotFound when no result is found.

@destination = Destination.find_by_id!(params[:id])

However, in your case there’s no reason to use the find_by method. Simply fallback to find.

@destination = Destination.find(params[:id])