| メソッド | invoke validation | invoke callback | raise exception | 補足 |
|---|---|---|---|---|
| update(attributes) | o | o | x | |
| update!(attributes) | o | o | o | |
| update_attribute(name, value) | x | o | x | boolean flag の update が主な目的? |
| update_attributes(attributes) | o | o | x | update の alias |
| update_attributes!(attributes) | o | o | o | update! の alias |
| update_column(name, value) | x | x | x | updated_columns(name: value) と同じ |
| update_columns(attributes) | x | x | x | 最速でレコード更新できる。updated_at が更新されない |
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