Question

I have a route which routes a request to somepath/:id(.:format) to somecontroller#show.

This goes for every request in any format. However, I have one condition where somepath/:id.png should return an image, and the code for that is already implemented in othercontroller#show.

I thought it would be best to route the .png requests to othercontroller instead of duplicating the code.

What would be the way to achieve this?
I’ve considered using constraints, but I am not sure if that would be the correct approach.

Answer 1

The only way i see is to use

match 'somepath/:id.png' => 'othercontroller#show'
match 'somepath/:id(.format)' => 'somecontroller#show

This will route all .png requests to other controller, and all other to somecontroller.

Be sure that you place png route before the other.