TaskStatus::Transition model

app/models/task_status/transition.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class TaskStatus
+  class Transition < ApplicationRecord
+    self.table_name = 'task_status_transitions'
+
+    belongs_to :from, class_name: '::TaskStatus'
+    belongs_to :to, class_name: '::TaskStatus'
+  end
+end