dbm = dbm || require('db-migrate'); var type = dbm.dataType; exports.up = function(db, callback) { db.runSql('ALTER TABLE appPortBindings DROP COLUMN containerPort', function (error) { if (error) console.error(error); callback(error); }); }; exports.down = function(db, callback) { db.runSql('ALTER TABLE appPortBindings ADD COLUMN containerPort VARCHAR(5) NOT NULL', function (error) { if (error) console.error(error); callback(error); }); };