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Description
Hello,
we encountered this issue with an setup like:
class Photo < ActiveRecord::Base
belongs_to :imageable, polymorphic: true
...
end
class Order < ActiveRecord::Base
...
has_one :photo, as: :imageable
...
end
class Api::V1::PhotoResource < JSONAPI::Resource
...
has_one :imageable, polymorphic: true
...
end
class Api::V1::OrderResource < JSONAPI::Resource
...
has_one :photo, polymorphic: true
...
end
The idea is, that you can upload a photo separately to the photo endpoint and then link it to the order while creating/updating it via relationships.
Some debugging revealed that it's recognised as polymorphic but replace_polymorphic_to_one_link is always called on the OrderResource, even with has_one :photo, polymorphic: true, foreign_key_on: :related in the OrderResource.
I would like to fix this behaviour myself, when somebody can point me in the right direction. Until then a workaround for this is:
def replace_polymorphic_to_one_link(relationship_type, relationship_key_value, relationship_key_type)
@model.photo = Photo.find(relationship_key_value)
end
in the OrderResource.