From 8300268441a7cc53d3a274a0d542d16e18bf8771 Mon Sep 17 00:00:00 2001 From: nao0515ki Date: Sat, 14 Apr 2018 22:28:01 +0900 Subject: [ci skip] belongs_to in self join association needs optional: true, if it's over 5.0 ver of rails --- guides/source/association_basics.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'guides') diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 860a1e1cba..6fbd52edbd 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -505,7 +505,7 @@ class Employee < ApplicationRecord has_many :subordinates, class_name: "Employee", foreign_key: "manager_id" - belongs_to :manager, class_name: "Employee" + belongs_to :manager, class_name: "Employee", optional: true end ``` -- cgit v1.2.3