Update 20201203213108_add_unread_count_to_chat_conversation_accounts_not_null.rb

db/migrate/20201203213108_add_unread_count_to_chat_conversation_accounts_not_null.rb

@@ -1,5 +1,15 @@
 class AddUnreadCountToChatConversationAccountsNotNull < ActiveRecord::Migration[5.2]
   def change
-    change_column_null :chat_conversation_accounts, :unread_count, false
+    safety_assured do
+      execute 'ALTER TABLE "chat_conversation_accounts" ADD CONSTRAINT "chat_conversation_accounts_unread_count_null" CHECK ("unread_count" IS NOT NULL) NOT VALID' 
+    end
+  end
+end
+
+class ValidateAddUnreadCountToChatConversationAccountsNotNull < ActiveRecord::Migration[5.2]
+  def change
+    safety_assured do
+      execute 'ALTER TABLE "chat_conversation_accounts" VALIDATE CONSTRAINT "chat_conversation_accounts_unread_count_null"' 
+    end
   end
 end