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【Rails】validationの記述で気をつけたいところ

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モデルにvalidationのコードを記述する際に、個人的に気をつけたい点を記事にしました。

#モデルにvalidatesを設定する際に、{}を使用する場合はカラム名の直後に必ずカンマを入れる!

Post.rb
validates :user_id, {presence: true}
                  ⬆︎
           必ずカンマを入れる!
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