linq to sql 查找所有开票金额大于回款金额的项目

查找所有开票金额大于回款金额的项目

TB_Projects 项目表

TB_Recipts 发票表

TB_Finances 回款表

TB_Projects  一对多 TB_Recipts

TB_Projects  一对多 TB_Finances

 select TB_Projects.ProjectCode, (CASE WHEN SUM(TB_Receipt.ReceiptMoney) IS NULL THEN 0 ELSE SUM(TB_Receipt.ReceiptMoney) END)as kp,
 (CASE WHEN SUM(TB_ProjectFinance.RealityMoney) IS NULL THEN 0 ELSE SUM(TB_ProjectFinance.RealityMoney)END) as hk from TB_Projects left join TB_Receipt
 on TB_Projects.Id=TB_Receipt.Project_Id left join TB_ProjectFinance on TB_Projects.Id=TB_ProjectFinance.Project_Id where TB_Projects.ProjcetManager=N'李优'

group by TB_Projects.ProjectCode 

 var query = (from p in Projects
                          join q in Recipts on p.Id equals q.Project.Id into l
                          from lp in l.DefaultIfEmpty()//左链接 两个表 生成新表 Projects---Recipts
                          join t in Finances on p.Id equals t.Project.Id into z
                          from zp in z.DefaultIfEmpty() //左链接 两个表 Projects---Finance
                          where p.ProjcetManager.Contains(person) //项目经理是当前登录人
                          select new
                          {
                              ProjectName = p.ProjectName,
                              ProjectCode = p.ProjectCode,
                              KaiPiao = lp.ReceiptMoney == null ?  : lp.ReceiptMoney,
                              HuiKuan = zp.RealityMoney == null ?  : zp.RealityMoney
                          }
                              into g
                              group g by new { g.ProjectCode,g.ProjectName } into k  //根据 编号和姓名 分组
                              select new
                              {
                                  ProjectCode = k.Key.ProjectCode,
                                  ProjectName=k.Key.ProjectName,
                                  KaiPiao = k.Sum(t => t.KaiPiao) == null ?  : k.Sum(t => t.KaiPiao),
                                  HuiKuan = k.Sum(t => t.HuiKuan) == null ?  : k.Sum(t => t.HuiKuan),
                              } into d
                              where d.KaiPiao > d.HuiKuan
                              select new
                              {
                                  ProjectName=d.ProjectName,
                                  KaiPiao = d.KaiPiao,
                                  HuiKuan = d.HuiKuan,
                                  ProjectCode = d.ProjectCode
                              }
                   ).ToList();

             return (from q in query
                     select new TB_ProjectsInputDto
                     {
                         ProjectName = q.ProjectName,
                         ProjectCode = q.ProjectCode,
                         ReceiptMoney = q.KaiPiao,
                         ReceivedPayment = q.HuiKuan
                     }).ToList();