How to Rename a Column with Strong Migration Enabled?

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This message was imported from the Ruby/Rails Modularity Slack server. Find more info in the import thread.

Message originally sent by slack user U719UPXQ17B

Hello, how do I rename a column with strong migration enabled ? Can anyone help me out?

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Message originally sent by slack user U78DXEZQGHX

The gems documentation is incredibly detailed and offers an example for this exact scenario.

https://github.com/ankane/strong_migrations#renaming-a-column

Have you tried that.

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Message originally sent by slack user U78HE411QT1

I ran into this very issue recently. The gem does explain how the check can be disabled, but it wasn’t clear where to do this.

It would be nice if you could do it with an ENV variable like DISABLE_SOME_CHECK=true rails db:migrate

Instead I ended up doing this in my migration

 def change
    StrongMigrations.disable_check(:rename_column)
    rename_column :my_table, :old_name, :new_name
  end
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Message originally sent by slack user U70VX2ZGM4Q

<@U78HE411QT1> you can do safety_assured do ; ... end if you’re sure it’s safe. ( you can find documentation about this in the README https://github.com/ankane/strong_migrations#assuring-safety)

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Message originally sent by slack user U78HE411QT1

Thanks <@U70VX2ZGM4Q> - for some reason I conflated this with another one of ankane’s gems: https://github.com/ankane/safely. I will try that next time.