Using ActionView::Helpers::AssetUrlHelper and asset_path in model

Question

I am trying to make a MissingImage class like this:

class MissingImage

  include ActionView::Helpers::AssetUrlHelper

  def src format
    return asset_path('layout/missing_image.png')
  end
end

To use like this in the model:

def main_image
  images.find(&:ismain) || images.first || MissingImage.new
end

The problem is - asset_path when used like this simply returns the string without any connection to the asset pipeline.

Suggestions?

UPDATE

After pocking around I have refactored MissingImage somewhat, but it still doesn't generate signed asset path in production:

class MissingImage
  def src format
    return ActionController::Base.helpers.asset_path('layout/missing_image.png')
  end
end

The path returned is /assets/layout/missing_image.png

score 0 · Answer 1 · edited May 23 '17 at 10:26

For my purposes '/assets/icons/myimage.png' was good enough but it sounds like you want the fully qualified path. I think if you try to get an absolute url you might have better luck.

You could set the option on the config.action_controller.asset_host and then use:

#{asset_path("layout/missing_image.png")}

check out the comments in the accepted answer on this question - Rails 3.1 absolute URL to an image

Using ActionView::Helpers::AssetUrlHelper and asset_path in model

1 Answers1