Question

In our current rails app, we are following certain patterns for including assets such as scripts and stylesheets.

For instance, one such pattern is (code inside the layout):

= stylesheet_link_tag controller.controller_name

The problem here is that not all of the controllers are going to have associated stylesheets. What is the best way to check if an asset exists? Specifically, I know there is some trickery here due to the cache busting asset names.

Answer 1

Finally figured this one out. Asset existence can be checked as follows:

YourApp::Application.assets.find_asset("#{asset}.css").nil?

The answer would then be:

= stylesheet_link_tag controller.controller_name if YourApp::Application.assets.find_asset("#{controller.controller_name}.css")