账单创建接口优化不可重复建

Src/Transforms/RestfulBill.cs

@@ -28,11 +28,23 @@ namespace Kivii.Finances.Transforms
             conn.InitEntityType<Bill>();
             conn.InitEntityType<BillDetail>();
 
-            var settlements = conn.SelectByIds<Settlement>(SettlementKvids);
+            var query = conn.From<Settlement>();
+            query.Where(o => Sql.In(o.Kvid, SettlementKvids));
+            query.Select(o => new
+            {
+                o.SerialNumber,
+                o.Kvid,
+                o.Amount,
+                o.Currency,
+                o.Type,
+                o.Summary,
+                o.Remark
+            });
+            var settlements = conn.Select(query);
             if (settlements == null) throw new Exception("无对应数据导出!");
             (settlements.Exists(o => o.Currency != Item.Currency)).ThrowIfTrue("存在于账单不一致的货币单位不可制作!");
             if (Item.Amount != settlements.Sum(o => o.Amount)) throw new Exception("账单金额不等于选择的结算金额之和!");
-
+            if (conn.Exists<BillDetail>(o => o.OffsetKvid == Guid.Empty && Sql.In(o.BizKvid, settlements.ConvertAll(p => p.Kvid)))) throw new Exception("此结算已有账单,不可重复制作账单!");
             var rtns = new RestfulCreateResponse<Bill>();
             rtns.Results = new List<Bill>();