快速开发框架CRL3.0发布,附带最新的项目示例CRLShoppingDemo

继上次使用CRL实现大数据分库分表方案升级到2.4,时隔不久又升级到了大版本号3.0,主要是因为结构发生了一些更改

ORM和业务封装Package分开了,增加了实例项目演示代码CRLShoppingDemo,整体项目结构如下

3.0更新内容如下:

2015-09-26
    升级改到3.0版,2.X版不再更新
2015-09-28
    Model索引值类型改为dynamic
    减少QueryList方法参数
2015-10-08
    重载了BaseProvider
    增加了in select查询
2015-10-10
    增加Equals扩展方法解析
2015-10-15
     优化了PackageTrans方法,去掉暴露在外面的事务控制方法
     去掉了SetContext方法,使用TransactionScope实现整体事务
     账户系统去掉SQL写法,改为对象
2015-10-20
    修改了创建表时数据初始,改为在Model实现GetInitData
    修改了缓存null判断
    数据访问对象dbHelper改名为DBExtend
2015-10-23
    更改字段别名返回和处理,不需专门传映射关系
    QueryFromAllCache方法名 改为QueryFromCache
    增加CRL演示项目

 以上更新在3.0开发文档中都有体现

主要功能更新讲解

1.In select 创建一个等效的关联in 查询,也有相对的Not In

//等效为 product.UserId in(select UserId from order where product.SupplierId=10 and order.status=2)
            query.In<Code.Order>(b => b.UserId, b => b.UserId, (a, b) => a.SupplierId == "10" && b.Status == 2);

2.Equals 扩展方法,类型不同的字段和参数,能用此方法进行相等判断了,省去了转换方法

query.Where(b => b.UserId.Equals(Code.ProductChannel.其它));//按值等于,enum等于int

3.统一事务调用方法PackageTrans,不用再手动回滚了

public bool TransactionTest(out string error)
        {
            //简化了事务写法,自动提交回滚
            return PackageTrans((out string ex) =>
            {
                ex = "";
                var product = new ProductData();
                product.BarCode = "sdfsdf";
                product.Number = 10;
                ProductDataManage.Instance.Add(product);
                //return false; //会回滚
                product = new ProductData();
                //product.BarCode = "sdfsdf2";
                //product.Number = 12;
                ProductDataManage.Instance.Add(product);//不符合数据校验规则,将会抛出异常,会回滚
                //return false;
                return true;
            }, out error);
        }

4.初始数据改在Model里重写GetInitData方法了,当对象表创建时,数据也会创建

/// <summary>
    /// 产品
    /// </summary>
    public class Product : CRL.Package.Product.ProductBase
    {
        /// <summary>
        /// 初始默认数据
        /// </summary>
        /// <returns></returns>
        public override System.Collections.IList GetInitData()
        {
            var list = new List<Product>();
            for (int i = 1; i < 100; i++)
            {
                list.Add(new Product() { ProductName = "测试产品" + i, SettlementPrice = 80, SoldPrice = 100, SupplierId = 1, ProductStatus = CRL.Package.Product.ProductStatus.已上架 });
            }
            return list;
        }
}

演示项目CRLShoppingDemo

之前有人提到看不懂文档,希望有简单的例子,如你所愿,按基本在线销售系统写了一个Demo,以下为运行效果

此演示项目正如上面所说,采用了精简的写法实现了这些业务

继承业务封装,实现会员管理

 public class MemberManage : CRL.Package.Person.PersonBusiness<MemberManage, Member>

商家和会员就都有了登录和验证方法,并实现Form认证

public ActionResult Login(Model.Member member)
        {
            string error;
            var a = MemberManage.Instance.CheckPass(member.AccountNo, member.PassWord, out error);
            if (!a)
            {
                ModelState.AddModelError("", error);
                return View();
            }
            var u = MemberManage.Instance.QueryItem(b => b.AccountNo == member.AccountNo);
            if (u.Locked)
            {
                ModelState.AddModelError("", "账号已锁定");
                return View();
            }
            MemberManage.Instance.Login(u, "Member", false);
            string returnUrl = Request["returnUrl"];
            if (string.IsNullOrEmpty(returnUrl))
            {
                returnUrl = "/";
            }
            return Redirect(returnUrl);
        }

 页面上需要取当前用户,通过Form认证返回统一的Person对象

var user = MemberManage.Instance.CurrentUser;//CRL.Package.Person.Person

类似FindOne,FindList,分页方法不用去傻傻的写很多次了(一般三层结构会把这类方法写N次),已经自动转换好了

var item = ProductManage.Instance.QueryItemFromCache(b => b.Id == id);//从缓存查询
var item = ProductManage.Instance.QueryItem(b => b.Id == id);//从数据库查找

//分页

var query = ProductManage.Instance.GetLambdaQuery();
query.Where(b => b.SupplierId == CurrentUser.Id);
int count;
var result = ProductManage.Instance.Page(query, out count);

内置账户交易系统,解决多种类型支付管理问题

可以给N种角色设置N种货币类型,统一进行管理

比如以下是充值现金到会员

public bool Charge(Member member, decimal amount, string remark, TransactionType transactionType, out string error)
        {
            var account = Transaction.AccountManage.Instance.GetAccountId(member.Id, Model.AccountType.会员, transactionType);
            string orderId = DateTime.Now.ToString("yyMMddhhmmssff");
            int tradeType = 10001;
            var trans = new List<CRL.Package.Account.Transaction>();
            var ts = new CRL.Package.Account.Transaction() { AccountId = account, Amount = amount, OperateType = CRL.Package.Account.OperateType.收入, TradeType = tradeType, OutOrderId = orderId, Remark = remark };
            trans.Add(ts);

            bool b = Transaction.TransactionManage.Instance.SubmitTransaction(out error,true, trans.ToArray());//提交流水
            return b;
        }

确认订单时扣款,同时赠送积分

var accountUser = Transaction.AccountManage.Instance.GetAccount(order.UserId, Model.AccountType.会员, Model.TransactionType.现金);
            var accountUser2 = Transaction.AccountManage.Instance.GetAccount(order.UserId, Model.AccountType.会员, Model.TransactionType.积分);
            if (accountUser.AvailableBalance < order.TotalAmount)
            {
                error = "账户余额不足";
                return false;
            }
            
            int tradeType = 1001;
            var amount = order.TotalAmount;
            var orderId = order.OrderId;
            var remark = "订单支付";
            var trans = new List<CRL.Package.Account.Transaction>();
            //生成会员交易流水
            var ts = new CRL.Package.Account.Transaction() { AccountId = accountUser.Id, Amount = amount, OperateType = CRL.Package.Account.OperateType.支出, TradeType = tradeType, OutOrderId = orderId, Remark = remark };
            trans.Add(ts);
            //赠送积分
            var ts3 = new CRL.Package.Account.Transaction() { AccountId = accountUser2.Id, Amount = amount, OperateType = CRL.Package.Account.OperateType.收入, TradeType = tradeType, OutOrderId = orderId, Remark = "赠送积分" };
            trans.Add(ts3);
            bool b = Transaction.TransactionManage.Instance.SubmitTransaction(out error, trans.ToArray());//提交流水
            if(!b)
            {
                return false;
            }

更多详细写法请对照示例和开发文档

示例源码(不包含CRL源码) http://pan.baidu.com/s/1mg1YDqK

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