0fc9f9d3e7
DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912
8 lines
194 B
Ruby
8 lines
194 B
Ruby
class SetMissingLastActivityAt < ActiveRecord::Migration[4.2]
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def up
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execute "UPDATE projects SET last_activity_at = updated_at WHERE last_activity_at IS NULL"
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end
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def down
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end
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end
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