Rails 5.1 : url helper for files in public folder

Question

In Rails 5.1, there is a deprecation warning if we use asset_path for files in public folder.

DEPRECATION WARNING: The asset "favicon.ico" is not present in the asset pipeline.Falling back to an asset that may be in the public folder. This behavior is deprecated and will be removed.

So I tried public_asset_path, but it is not working, is there a helper?

I got the same error when I am referencing an external resource, i.e: an image on aws or anywhere else — Zia Ul Rehman Mughal, May 19 '17 at 09:07
Well, I found mine, the issue was with the URL, URL was being appended with another https: while it already had http:// so complete URL was like https:http://xyz.abc which is obviously not right. Fixing the URL generator in my app fixed the problem. On a few places, I had the completely wrong path to file, i.e path was not even path, also fixed that thanks to this warning. :) — Zia Ul Rehman Mughal, May 30 '17 at 01:52

score 22 · Answer 1 · answered Jun 23 '17 at 07:37

22

If want to use helper method without asset pipeline, need to specify the skip_pipeline option.

Like this.

image_path("user/favicon.png", skip_pipeline: true)

Or if want to enable asset fallback for the entire application, config.assets.unknown_asset_fallback can be set to true. See: http://guides.rubyonrails.org/asset_pipeline.html#raise-an-error-when-an-asset-is-not-found

answered Jun 23 '17 at 07:37

John Smith

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In case someone may need alternative full-form asset_path version: `ActionController::Base.helpers.asset_path('favicon.ico', host: "https://example.com", skip_pipeline: true)` – BinaryButterfly Nov 13 '22 at 11:50

score -1 · Answer 2 · edited May 23 '17 at 12:26

-1

you can use Rails.public_path to get the public directory and then find the file from there, you could also use #{RAILS_ROOT}/public they would both do the same thing.

Source: Getting absolute path to the file inside the public folder in Rails

edited May 23 '17 at 12:26

Community

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answered May 18 '17 at 08:47

djlazz3

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score -3 · Accepted Answer · answered Jul 25 '17 at 13:16

So I added this method in helpers/application_helper.rb

module ApplicationHelper
  def public_path(path)
      "#{ Rails.env.development? ? 'http://localhost:3000/' : 'https://cdn.mysite.fr/' }#{ path }"
  end
end

and then I can use public_path('images/image.jpg') in views

Rails 5.1 : url helper for files in public folder

3 Answers3