discourse/db/migrate/20180425152503_drop_user_ca...

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class DropUserCardBadgeColumns < ActiveRecord::Migration[5.1]
def up
# User card images have been moved to a plugin which uses the
# user's custom fields instead of the card_image_badge_id column.
execute "INSERT INTO user_custom_fields (user_id, name, value, created_at, updated_at)
SELECT user_id, 'card_image_badge_id', card_image_badge_id, now(), now()
FROM user_profiles
WHERE card_image_badge_id IS NOT NULL
AND user_id NOT IN (
SELECT user_id
FROM user_custom_fields
WHERE name = 'card_image_badge_id'
)"
# delayed drop of the user_profiles.card_image_badge_id column
end
def down
raise ActiveRecord::IrreversibleMigration
end
end