update demo

Examples/aspnetcore_transaction/Domain/SongRepository.cs

@@ -0,0 +1,35 @@
+using System;
+using System.ComponentModel;
+using System.Threading.Tasks;
+using FreeSql;
+using FreeSql.DataAnnotations;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace aspnetcore_transaction.Domain
+{
+    public class SongRepository : DefaultRepository<Song, int>
+    {
+        public SongRepository(UnitOfWorkManager uowm) : base(uowm?.Orm, uowm) { }
+    }
+
+    [Description("123")]
+    public class Song
+    {
+        /// <summary>
+        /// 自增
+        /// </summary>
+        [Column(IsIdentity = true)]
+        [Description("自增id")]
+        public int Id { get; set; }
+        public string Title { get; set; }
+    }
+    public class Detail
+    {
+        [Column(IsIdentity = true)]
+        public int Id { get; set; }
+
+        public int SongId { get; set; }
+        public string Title { get; set; }
+    }
+}