文件名称：Node.js的ORM框架rdb.zip
文件大小：708KB
文件格式：NONE
更新时间：2022-08-08 11:35:21
开源项目
rdb 是 Node.js 的一个 ORM 框架，支持 Postgres 和 MySQL 数据库。特点：简单灵活的映射器支持事务处理可定制的持久化策略支持延迟加载基于 promises.示例代码：var rdb = require('rdb'); var Customer = rdb.table('_customer'); Customer.primaryColumn('cId').guid().as('id'); Customer.column('cName').string().as('name'); Customer.column('cBalance').numeric().as('balance'); Customer.column('cRegdate').date().as('registeredDate'); Customer.column('cIsActive').boolean().as('isActive'); Customer.column('cPicture').binary().as('picture'); var db = rdb('postgres://postgres:postgres@localhost/test'); db.transaction() .then(getById) .then(printCustomer) .then(rdb.commit) .then(null, rdb.rollback) .then(onOk, onFailed); function getById() { return Customer.getById('a0000000-0000-0000-0000-000000000000'); } function printCustomer(customer) { var format = 'Customer Id: %s, name: %s, Balance: %s, Registered Date: %s, Is Active: %s, Picture: %s'; var args = [format, customer.id, customer.name, customer.balance, customer.registeredDate, customer.isActive, customer.picture]; console.log.apply(null,args); } function onOk() { console.log('Success'); console.log('Waiting for connection pool to teardown....'); } function onFailed(err) { console.log('Rollback'); console.log(err); }