Get absolute URL for paperclip attachment

Question

Is it possible to get the absolute URI for a Paperclip attachment? Right now, the problem is that the production environment is deployed in a sub-URI (on Passenger: RackBa

Answer 1

According to this github issue, it is cleaner to use ActionController::Base.asset_host so it would result the helper:

  def add_host_prefix(url)
    URI.join(ActionController::Base.asset_host, url)
  end

This supposes you have in every /config/environments/.rb file the following:

Appname::Application.configure do

  # ....

  config.action_controller.asset_host = 'http://localhost:3000' # Locally

  # ....

end