- 合并 FreeSql.DbContext 项目至 FreeSql 维护；

Examples/dbcontext_01/Controllers/ValuesController.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using FreeSql;
+using Microsoft.AspNetCore.Mvc;
+
+namespace dbcontext_01.Controllers {
+	[Route("api/[controller]")]
+	[ApiController]
+	public class ValuesController : ControllerBase {
+
+		IFreeSql _orm;
+		SongContext _songContext;
+		public ValuesController(SongContext songContext,
+			IFreeSql orm1, IFreeSql orm2,
+			IFreeSql<long> orm3
+			) {
+			_songContext = songContext;
+			_orm = orm1;
+
+		}
+
+		// GET api/values
+		[HttpGet]
+		async public Task<string> Get() {
+
+			long id = 0;
+
+			try {
+
+				var repos2Song = _orm.GetRepository<Song, int>();
+				repos2Song.Where(a => a.Id > 10).ToList();
+				//查询结果，进入 states
+
+				var song = new Song { };
+				repos2Song.Insert(song);
+				id = song.Id;
+
+				var adds = Enumerable.Range(0, 100)
+					.Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" })
+					.ToList();
+				//创建一堆无主键值
+
+				repos2Song.Insert(adds);
+
+				for (var a = 0; a < 10; a++)
+					adds[a].Title = "dkdkdkdk" + a;
+
+				repos2Song.Update(adds);
+				//批量修改
+
+				repos2Song.Delete(adds.Skip(10).Take(20).ToList());
+				//批量删除，10-20 元素的主键值会被清除
+
+				adds.Last().Url = "skldfjlksdjglkjjcccc";
+				repos2Song.Update(adds.Last());
+
+				adds.First().Url = "skldfjlksdjglkjjcccc";
+				repos2Song.Update(adds.First());
+
+
+				var ctx = _songContext;
+				var tag = new Tag {
+					Name = "testaddsublist",
+					Tags = new[] {
+							new Tag { Name = "sub1" },
+							new Tag { Name = "sub2" },
+							new Tag {
+								Name = "sub3",
+								Tags = new[] {
+									new Tag { Name = "sub3_01" }
+								}
+							}
+						}
+				};
+				ctx.Tags.Add(tag);
+
+
+				ctx.UnitOfWork.GetOrBeginTransaction();
+
+				var tagAsync = new Tag {
+					Name = "testaddsublist",
+					Tags = new[] {
+							new Tag { Name = "sub1" },
+							new Tag { Name = "sub2" },
+							new Tag {
+								Name = "sub3",
+								Tags = new[] {
+									new Tag { Name = "sub3_01" }
+								}
+							}
+						}
+				};
+				await ctx.Tags.AddAsync(tagAsync);
+
+
+				ctx.Songs.Select.Where(a => a.Id > 10).ToList();
+				//查询结果，进入 states
+
+				song = new Song { };
+				//可插入的 song
+
+				ctx.Songs.Add(song);
+				id = song.Id;
+				//因有自增类型，立即开启事务执行SQL，返回自增值
+
+				adds = Enumerable.Range(0, 100)
+					.Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" })
+					.ToList();
+				//创建一堆无主键值
+
+				ctx.Songs.AddRange(adds);
+				//立即执行，将自增值赋给 adds 所有元素，因为有自增类型，如果其他类型，指定传入主键值，不会立即执行
+
+				for (var a = 0; a < 10; a++)
+					adds[a].Title = "dkdkdkdk" + a;
+
+				ctx.Songs.UpdateRange(adds);
+				//批量修改，进入队列
+
+				ctx.Songs.RemoveRange(adds.Skip(10).Take(20).ToList());
+				//批量删除，进入队列，完成时 10-20 元素的主键值会被清除
+
+				//ctx.Songs.Update(adds.First());
+
+				adds.Last().Url = "skldfjlksdjglkjjcccc";
+				ctx.Songs.Update(adds.Last());
+
+				adds.First().Url = "skldfjlksdjglkjjcccc";
+				ctx.Songs.Update(adds.First());
+
+				//单条修改 urls 的值，进入队列
+
+				//throw new Exception("回滚");
+
+				//ctx.Songs.Select.First();
+				//这里做一个查询，会立即打包【执行队列】，避免没有提交的数据，影响查询结果
+
+				ctx.SaveChanges();
+				//打包【执行队列】，提交事务
+
+
+				using (var uow = _orm.CreateUnitOfWork()) {
+
+					var reposSong = uow.GetRepository<Song, int>();
+					reposSong.Where(a => a.Id > 10).ToList();
+					//查询结果，进入 states
+
+					song = new Song { };
+					reposSong.Insert(song);
+					id = song.Id;
+
+					adds = Enumerable.Range(0, 100)
+						.Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" })
+						.ToList();
+					//创建一堆无主键值
+
+					reposSong.Insert(adds);
+
+					for (var a = 0; a < 10; a++)
+						adds[a].Title = "dkdkdkdk" + a;
+
+					reposSong.Update(adds);
+					//批量修改
+
+					reposSong.Delete(adds.Skip(10).Take(20).ToList());
+					//批量删除，10-20 元素的主键值会被清除
+
+					adds.Last().Url = "skldfjlksdjglkjjcccc";
+					reposSong.Update(adds.Last());
+
+					adds.First().Url = "skldfjlksdjglkjjcccc";
+					reposSong.Update(adds.First());
+
+					uow.Commit();
+				}
+
+
+
+				//using (var ctx = new SongContext()) {
+
+				//	var song = new Song { };
+				//	await ctx.Songs.AddAsync(song);
+				//	id = song.Id;
+
+				//	var adds = Enumerable.Range(0, 100)
+				//		.Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" })
+				//		.ToList();
+				//	await ctx.Songs.AddRangeAsync(adds);
+
+				//	for (var a = 0; a < adds.Count; a++)
+				//		adds[a].Title = "dkdkdkdk" + a;
+
+				//	ctx.Songs.UpdateRange(adds);
+
+				//	ctx.Songs.RemoveRange(adds.Skip(10).Take(20).ToList());
+
+				//	//ctx.Songs.Update(adds.First());
+
+				//	adds.Last().Url = "skldfjlksdjglkjjcccc";
+				//	ctx.Songs.Update(adds.Last());
+
+				//	//throw new Exception("回滚");
+
+				//	await ctx.SaveChangesAsync();
+				//}
+			} catch {
+				var item = await _orm.Select<Song>().Where(a => a.Id == id).FirstAsync();
+
+				throw;
+			}
+
+			var item22 = await _orm.Select<Song>().Where(a => a.Id == id).FirstAsync();
+			var item33 = await _orm.Select<Song>().Where(a => a.Id > id).ToListAsync();
+
+			return item22.Id.ToString();
+		}
+
+		// GET api/values/5
+		[HttpGet("{id}")]
+		public ActionResult<string> Get(int id) {
+			return "value";
+		}
+
+		// POST api/values
+		[HttpPost]
+		public void Post([FromBody] string value) {
+		}
+
+		// PUT api/values/5
+		[HttpPut("{id}")]
+		public void Put(int id, [FromBody] string value) {
+		}
+
+		// DELETE api/values/5
+		[HttpDelete("{id}")]
+		public void Delete(int id) {
+		}
+	}
+}