Add demo

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

@@ -34,6 +34,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Unitdfafaa.Init();
             Unitdasfyasdfa.Init();
             Unitafdssfasydsfsf.Init();
             Unitsdfadysdfa.Init();

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

@@ -0,0 +1,139 @@
+using System;
+using System.Collections.Generic;
+using System.Linq.Expressions;
+using System.Net.Mime;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using SqlSugar;
+
+namespace OrmTest;
+
+public static class Unitdfafaa
+{
+    public static void Init() 
+    {
+        Main().GetAwaiter().GetResult();
+    }
+    public static async Task Main()
+    {
+        await Task.CompletedTask;
+        var db = NewUnitTest.Db;
+
+        db.Aop.OnLogExecuted = (s, parameters) => Console.WriteLine(s);
+
+        db.DbMaintenance.CreateDatabase();
+
+        //建表 
+        db.CodeFirst.InitTables<Students>();
+        db.CodeFirst.InitTables<StudentsSub>();
+        db.CodeFirst.InitTables<StudentsGender>();
+        db.CodeFirst.InitTables<StudentLogs>();
+
+        var data = new List<Students>()
+        {
+            new Students() { Id = 1, Name = "李雷" },
+            new Students() { Id = 2, Name = "韩梅梅", ParentId = 1 },
+            new Students() { Id = 3, Name = "王强", ParentId  = 1 },
+            new Students() { Id = 4, Name = "赵敏", ParentId  = 1 },
+        };
+
+        await db.Storageable(data).ExecuteCommandAsync();
+
+        var data2 = new List<StudentsSub>()
+        {
+            new StudentsSub() { Id = 1, StudentId = 1, SubName = "李雷的子1" },
+            new StudentsSub() { Id = 2, StudentId = 2, SubName = "韩梅梅的子1" },
+            new StudentsSub() { Id = 3, StudentId = 3, SubName = "王强的子1" },
+            new StudentsSub() { Id = 4, StudentId = 4, SubName = "赵敏的子1" },
+        };
+
+        await db.Storageable(data2).ExecuteCommandAsync();
+
+        var result = await db.Queryable<Students>()
+            .Includes(s => s.Gender)
+           .LeftJoin<StudentLogs>((s, sl) => s.Id == sl.StudentId)
+           .Select((s, sl) => new StudentsDto()
+           {
+               LogContent = sl.LogContent,
+               Subs = SqlFunc.Subqueryable<StudentsSub>()
+                   .Where(ss => ss.StudentId == s.Id)
+                   .ToList<StudentsSubDto>(),
+           }, true)
+           .ToListAsync();
+
+        Console.WriteLine(JsonConvert.SerializeObject(result));
+         
+    }
+
+    [SugarTable("unitStudentssdsaaa")]
+    public class Students
+    {
+        [SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+
+        [SugarColumn(DefaultValue = "0")]
+        public int GenderId { get; set; }
+
+        [Navigate(NavigateType.OneToOne, nameof(StudentsGender.Id))]
+        public StudentsGender Gender { get; set; }
+
+        public string Name { get; set; }
+
+        public long ParentId { get; set; }
+
+        [Navigate(NavigateType.OneToOne, nameof(StudentsSub.StudentId))]
+        public List<StudentsSub> Subs { get; set; }
+    }
+    [SugarTable("unitStudentsGendersaaa")]
+    public class StudentsGender
+    {
+        [SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+    }
+    [SugarTable("unitStudentLogssaaa")]
+    public class StudentLogs
+    {
+        [SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+
+        public int StudentId { get; set; }
+
+        public string LogContent { get; set; }
+    }
+    [SugarTable("unitStudentsSubsaaa")]
+
+    public class StudentsSub
+    {
+        [SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+
+        public long StudentId { get; set; }
+
+        [SugarColumn(IsNullable = true)]
+        public string SubName { get; set; }
+    }
+
+    public class StudentsDto
+    {
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+
+        public long ParentId { get; set; }
+
+        public string LogContent { get; set; }
+        public List<StudentsSubDto> Subs { get; set; }
+    }
+
+    public class StudentsSubDto
+    {
+        public int Id { get; set; }
+
+        public long StudentId { get; set; }
+
+        public string SubName { get; set; }
+    }
+}