added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/backend/app/models/trackable_usage.rb

@@ -0,0 +1,46 @@
+# == Schema Information
+#
+# Table name: trackable_usages
+#
+#  id             :integer          not null, primary key
+#  user_id        :integer
+#  trackable_id   :integer
+#  trackable_type :string
+#  count          :integer          default(1)
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+
+class TrackableUsage < ActiveRecord::Base
+  #
+  # Associations
+  #
+
+  belongs_to :user
+  belongs_to :trackable, polymorphic: true, counter_cache: true
+
+  #
+  # Validations
+  #
+  validates :count, numericality: {greater_than: 0}
+
+  #
+  # Callbacks
+  #
+  after_commit ->(obj) { SwitchTrackableVisibility.perform_later(obj.id) }
+  #
+  # Class Methods
+  #
+
+  class << self
+    def create_or_update_by(user: nil, trackable: nil)
+      trackable_usage = find_by(user: user, trackable: trackable)
+      if trackable_usage.present?
+        trackable_usage.increment! :count
+        trackable_usage
+      else
+        create!(user: user, trackable: trackable)
+      end
+    end
+  end
+end