Rails 4 model associations conditions

Question

I've got a model that has polymorphic association with conditions.

This however doesn't seem to be working and it sounds like conditions are deprecated in Rails 4.

Below is my code for the association:

has_one :top_background, :class_name => 'UploadedFile', as: :imageable,
            :conditions => { :imageable_type => 'venue_top_background' }, dependent: :destroy

Is there a way to make this work in Rails 4?

Answer 1

In Rails 4, conditions are achieved via a scope block as the second argument to has_one. For example:

has_one :top_background, ->{where(imageable_type: 'venue_top_background')}, :class_name => 'UploadedFile', as: :imageable, dependent: :destroy