## v0.4.12

- 增加 .First()/.FirstAsync() 指定字段查询的重载方法 #26；
- 调整 FreeSql.Repository 直接引用 FreeSql.DbContext 内的仓储实现；
- 移动 FreeSql.Repository 至 FreeSql.DbContext；
- 补充 单独针对 MySql 枚举类型的单元测试；

Examples/dbcontext_01/DbContexts/SongContext.cs

@@ -1,52 +0,0 @@
-using FreeSql;
-using FreeSql.DataAnnotations;
-using System;
-using System.Collections.Generic;
-
-namespace dbcontext_01 {
-
-	public class SongContext : DbContext {
-
-		public DbSet<Song> Songs { get; set; }
-		public DbSet<Tag> Tags { get; set; }
-
-		protected override void OnConfiguring(DbContextOptionsBuilder builder) {
-			builder.UseFreeSql(dbcontext_01.Startup.Fsql);
-		}
-	}
-
-
-	public class Song {
-		[Column(IsIdentity = true)]
-		public int Id { get; set; }
-		public DateTime? Create_time { get; set; }
-		public bool? Is_deleted { get; set; }
-		public string Title { get; set; }
-		public string Url { get; set; }
-
-		public virtual ICollection<Tag> Tags { get; set; }
-
-		[Column(IsVersion = true)]
-		public long versionRow { get; set; }
-	}
-	public class Song_tag {
-		public int Song_id { get; set; }
-		public virtual Song Song { get; set; }
-
-		public int Tag_id { get; set; }
-		public virtual Tag Tag { get; set; }
-	}
-
-	public class Tag {
-		[Column(IsIdentity = true)]
-		public int Id { get; set; }
-		public int? Parent_id { get; set; }
-		public virtual Tag Parent { get; set; }
-
-		public decimal? Ddd { get; set; }
-		public string Name { get; set; }
-
-		public virtual ICollection<Song> Songs { get; set; }
-		public virtual ICollection<Tag> Tags { get; set; }
-	}
-}