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rails db:seedでデータベースに反映されない時の対処法

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seedを用いてデータベースにダミーデータを入れる時に使えるseeds.rbの記述方法について書きました。

seeds.rbにデータを記述する時に

seeds.rb
User.create!(name: ...)

と上記のようにcreateの後に!をつけることでデータをデータベースに登録失敗した際にエラーを表示してくれるようになります。

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