hometown/db/migrate/20181127130500_identity_id_...

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require Rails.root.join('lib', 'mastodon', 'migration_helpers')
class IdentityIdToBigint < ActiveRecord::Migration[5.2]
include Mastodon::MigrationHelpers
disable_ddl_transaction!
def up
safety_assured do
change_column_type_concurrently :identities, :id, :bigint
cleanup_concurrent_column_type_change :identities, :id
change_column_type_concurrently :identities, :user_id, :bigint
cleanup_concurrent_column_type_change :identities, :user_id
end
end
def down
safety_assured do
change_column_type_concurrently :identities, :id, :integer
cleanup_concurrent_column_type_change :identities, :id
change_column_type_concurrently :identities, :user_id, :integer
cleanup_concurrent_column_type_change :identities, :user_id
end
end
end