Add user test case

Src/Asp.NetCore2/SqlSeverTest/UserTestCases/Program.cs

@@ -14,6 +14,7 @@ namespace OrmTest
         /// <param name="args"></param>
          public static void Init()
         {
+            Unitadfaasdfaaa.Init();
             Unitatadffaa1.Init();
             UnitOneToManyNsdfafa.Init();
             UCustomConditionalFunc.Init();

Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UintSubListadfa.cs

@@ -0,0 +1,113 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+ 
+    public class Unitadfaasdfaaa
+    {
+        public static void Init()
+        {
+            var db = NewUnitTest.Db;
+
+            db.CodeFirst.InitTables<Teacher, ClassRoom, StarClass, TeacherClass, StudentClass>();
+            db.DbMaintenance.TruncateTable<Teacher, ClassRoom, StarClass, TeacherClass, StudentClass>();
+            db.Insertable(new ClassRoom()
+            {
+                Name = "a"
+            }).ExecuteCommand();
+            db.Insertable(new Teacher()
+            {
+                Name = "b"
+            }).ExecuteCommand();
+            db.Queryable<Teacher>()
+                .Select(s => new TeacherView
+                {
+                    Id = s.Id,
+                    Name = s.Name,
+                    ClassRoom = SqlFunc.Subqueryable<ClassRoom>()
+                        .LeftJoin<StarClass>((c, sc) => c.Id == sc.ClassId)
+                        .Where((c, sc) => SqlFunc.Subqueryable<TeacherClass>().Where(tc => tc.TeacherId == s.Id && tc.ClassRoomId == c.Id).Any())
+                        .ToList((c, sc) => new ClassRoomView()
+                        {
+                            HasStudent = SqlFunc.Subqueryable<StudentClass>().Where(st => st.ClassId == c.Id).Any(),
+                        }, true)
+                })
+                .ToList();
+        }
+
+        public class Teacher
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public string Name { get; set; }
+        }
+
+        public class TeacherView
+        {
+            public int Id { get; set; }
+
+            public string Name { get; set; }
+
+            public List<ClassRoomView> ClassRoom { get; set; }
+        }
+
+        public class ClassRoom
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public string Name { get; set; }
+        }
+
+        public class ClassRoomView
+        {
+            public int Id { get; set; }
+
+            public string Name { get; set; }
+            public bool HasStudent { get; set; }
+        }
+
+        public class TeacherClass
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public int TeacherId { get; set; }
+
+            public int ClassRoomId { get; set; }
+        }
+
+        public class StarClass
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public int ClassId { get; set; }
+        }
+
+        public class Student
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public int ClassId { get; set; }
+        }
+
+        public class StudentClass
+        {
+            [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+            public int Id { get; set; }
+
+            public int StudentId { get; set; }
+
+            public int ClassId { get; set; }
+        }
+    }
+ 
+}