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rails 昇順、降順の並び替え

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データを昇順、降順に並び替えたいとき、どうやるんだっけ?とできそうでできない、かゆい感じだったので、まとめてみた。

@user = User.all.order(id: "DESC") ## idの降順
@user = User.all.order(bith_day: "ASC") ## 生年月日の昇順(デフォルトがASCになっているので通常この書き方はない)

@user = User.all.order(:id) ## 昇順or降順を指定しない場合(デフォルトは)昇順
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