donphan/db/migrate/20190306145741_add_lock_ver...

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require Rails.root.join('lib', 'mastodon', 'migration_helpers')
class AddLockVersionToPolls < ActiveRecord::Migration[5.2]
include Mastodon::MigrationHelpers
disable_ddl_transaction!
def up
safety_assured do
add_column_with_default(
:polls,
:lock_version,
:integer,
allow_null: false,
default: 0
)
end
end
def down
remove_column :polls, :lock_version
end
end