With paperclip, how can I change the image location to a “:parent_model_id/:id” folder format?

Question

Given that I have a Listing model that has many images and each image has one attachment, how can I have the

Answer 1

Since you've got a belongs_to relationship on your Image model, you should just be able to use listing_id as part of the paperclip config:

has_attached_file :photo, 
    :styles => { :medium => "300x300>", :thumb => "100x100>" }, 
    :url => "system/photos/:listing_id/:id"