metu.life/db/migrate/20180609104432_migrate_web_...

17 lines
459 B

class MigrateWebPushSubscriptions2 < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def up
Web::PushSubscription.where(user_id: nil).select(:id).includes(:session_activation).find_each do |subscription|
if subscription.session_activation.nil?
subscription.delete
else
subscription.update_attribute(:user_id, subscription.session_activation.user_id)
end
end
end
def down
# Nothing to do
end
end