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has_oneについてメモ

Posted at

#has_oneとbelongs_toの関係について

一対一の関係において外部キーを記述する方にはbelongs_toを用い、
外部キーを置かない方にはhas_oneとして関係性を構築する。

user.rb
has_one :destination
destinaton.rb
belongs_to :user
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