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Contributions

posted an article

`ActiveRecord::Relation#uniq!`非推奨化から見る、GROUP BY重複排除14年史

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Railsのenum `not_` スコープがNULLを除外するバグを追った

posted an article

Railsのenum `not_` スコープがNULLを除外するバグを追った

posted an article

「テストが通った」≠「バグを防げる」— `\s*` で“常に通る”RSpecになっていた話
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