association

app/models/communication/website/previous_link.rb

@@ -30,10 +30,15 @@ class Communication::Website::PreviousLink < ApplicationRecord
   belongs_to :about, polymorphic: true
 
   before_validation :set_university, on: :create
+  after_destroy_commit :sync_about
 
   private
 
   def set_university
     self.university_id = website.university_id
   end
+
+  def sync_about
+    about.sync_with_git
+  end
 end

app/models/communication/website/with_dependencies.rb

@@ -23,6 +23,10 @@ module Communication::Website::WithDependencies
                 foreign_key: :communication_website_id,
                 dependent: :destroy
 
+    has_many    :previous_links,
+                class_name: "Communication::Website::PreviousLink",
+                dependent: :destroy
+
   end
 
   def blocks