Preliminary Steps

• Equip Compoundable with the ability to wrap any object including GlobalID::Identification
• Extract ModelBroadcastCallbacks and CollectionBroadcastCallbacks as collaborators
• Extract CollectionsRegistry and have it handle collection broadcasting

GlobalIDable

Broadcasting to objects including GlobalID::Identification can be done with using ModelBroadcastCallbacks as a kind of semi-private API:

class GlobalIdableEntity
  include GlobalID::Identification
  include CableReady::Broadcastable

  def id
    "fake-id"
  end

  def self.find(id)
    new if id == "fake-id"
  end

  def fake_update
    ModelBroadcasterCallbacks.new(:update).after_commit(self)
  end
end

Gardening 🌱: Refactor "marker" callbacks to lambdas because their naming was confusing