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In Rails 3, I was able to do distinguish mounted (or mountable) engines from "other" engines by calling MyEngine::Engine.class.mounted_path. This does not work in Rails 4 anymore. Based on this question, railties seem to have been deprecated.

How can I distinguish between mountable engines in Rails 4?

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RailinginDFW
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2 Answers2

3

Rails::Engine.subclasses

This will return the mounted engines.

Nick Schaubeck
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  • this returns all engines, such as Coffee, Turbolinks and Devise. I am referring to your own custom mounted engines as shown in http://edgeguides.rubyonrails.org/engines.html – RailinginDFW Jan 12 '16 at 18:02
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I used suggestions found [here][1] to create my own mounted_path method.

I put the following in an initializer file:

class Rails::Engine
  def self.mounted_path
    route = Rails.application.routes.routes.detect do |route|
      route.app == self
    end
    route && route.path
  end
end

Still looking for better answers. [1]: Determine if Journey::Path::Pattern matches current page

RailinginDFW
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