Question

I have a model with a method to return a url to a person’s avatar that looks like this:

 def avatar_url
   if self.avatar?
     self.avatar.url # This uses paperclip
   else
     "/images/avatars/none.png"
   end
 end

I’m in the midst of upgrading to 3.1, so now the hard-coded none image needs be referenced through the asset pipeline. In a controller or view, I would just wrap it in image_path(), but I don’t have that option in the model. How can I generate the correct url to the image?

Answer 1

We solved this problem using draper: https://github.com/jcasimir/draper. Draper let us add a wrapper around our models (for use in views) that have access to helpers.