nyx_server/db/Connection.js

Node内容发布

var Promise = require("bluebird")

function Connection(connectParams , pool){
	this.pool = pool;
	this.connection = this._create(connectParams);
	this.lastUseTime = new Date();
}

/**
 * 启动一个事务
 * @param fn 事务启动成功后的回调事件
 */
Connection.prototype.beginTransaction = function(fn){
	this.connection.beginTransaction(fn);
};

/**
 * 提交一个事务
 * @param fn 提交后的回调事件
 */
Connection.prototype.commit = function(fn){
	this.connection.commit(fn);
};

/**
 * 回滚一个事务
 * @param fn 回滚后的回调事件
 */
Connection.prototype.rollback = function(fn){
	this.connection.rollback(fn);
};

/**
 * 释放一个连接
 */
Connection.prototype.release = function(fn){
	if(this.pool){
		this.pool.release(this , fn);
	}else{
		this.end(fn);
	}
};

/**
 * 关闭一个连接
 */
Connection.prototype.close = function(fn){
	if(this.pool){
		this.pool.close(this , fn);
	}
	this.end(fn);
};

Connection.prototype.end = function(fn){
	this.connection.end(fn);
};

/**
 * 执行一个sql语句
 * @param {String}sql
 * @param {Array}values sql绑定的数据
 */
Connection.prototype.query = function(sql , values){
	this.lastUseTime = new Date();
	return this.connection.query(sql  , values);
};


Connection.prototype.vaild = function(){
	return Promise.resolve(true);
};

module.exports = Connection;