Rails Polymorphic Association with multiple associations on the same model

Question

My question is essentially the same as this one: Polymorphic Association with multiple associations on the same model

However, the proposed/accepted solution does no

Answer 1

Something like following worked for querying, but assigning from User to address didn't work

User Class

has_many :addresses, as: :address_holder
has_many :delivery_addresses, -> { where :address_holder_type => "UserDelivery" },
       class_name: "Address", foreign_key: "address_holder_id"

Address Class

belongs_to :address_holder, polymorphic: true