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間違えてrails db:migrationをしてしまった時の戻し方

Rails
MySQL
migration

Posted at 2021-09-09

マイグレーションしてしまったバージョンを調べる

hogehoge@MacBook-Pro room-api % rails db:version
Current version: 20210909002314

今回のバージョンは20210909002314なので、これをdownさせればいい

元に戻す

hogehoge@MacBook-Pro room-api % rails db:migrate:down VERSION=20210909002314 
== 20210909002314 AddCancelToSamples: reverting ==========================
-- remove_column(:samples, :cancel, :boolean)
   -> 0.0248s
== 20210909002314 AddCancelToSamples: reverted (0.0281s) =================

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