Include Assets Only If They Exist

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 layo

Answer 1

Simple ViewHelpers

This is what I use myself. Add this to your ApplicationHelper:

module ApplicationHelper
  def controller_stylesheet(opts = { media: :all })
    if Rails.application.assets.find_asset("#{params[:controller]}.css")
      stylesheet_link_tag(params[:controller], opts)
    end
  end

  def controller_javascript(opts = {})
    if Rails.application.assets.find_asset("#{params[:controller]}.js")
      javascript_include_tag(params[:controller], opts)
    end
  end
end

and use them like this in your application.html.haml:

= controller_stylesheet
= controller_javascript

---

Note: This works with all .js, .coffee, .css, .scss even though it just says .css and .js