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Examples/dbcontext_01/Controllers/ValuesController.cs Normal file
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using System;
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
{
private readonly IFreeSql _orm;
private readonly SongContext _songContext;
private readonly CurdAfterLog _curdLog;
public ValuesController(SongContext songContext, IFreeSql orm1, CurdAfterLog curdLog)
{
_songContext = songContext;
_orm = orm1;
_curdLog = curdLog;
}
// GET api/values
[HttpGet]
public async Task<string> Get()
{
_orm.SetDbContextOptions(opt =>
{
opt.OnEntityChange = changeReport =>
{
Console.WriteLine(changeReport);
};
});
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 { Title = "empty" };
repos2Song.Insert(song);
song.Title = "empty01";
repos2Song.Update(song);
id = song.Id;
var adds = Enumerable.Range(0, 100)
.Select(a => new Song { CreateTime = DateTime.Now, 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"
};
ctx.Tags.Add(tag);
ctx.UnitOfWork.GetOrBeginTransaction();
var tagAsync = new Tag
{
Name = "testaddsublist"
};
await ctx.Tags.AddAsync(tagAsync);
ctx.Songs.Select.Where(a => a.Id > 10).ToList();
//查询结果，进入 states
song = new Song { Title = "empty" };
//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 { CreateTime = DateTime.Now, 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 { Title = "empty" };
reposSong.Insert(song);
id = song.Id;
adds = Enumerable.Range(0, 100)
.Select(a => new Song { CreateTime = DateTime.Now, 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 (ctx = new SongContext())
{
song = new Song { Title = "empty" };
await ctx.Songs.AddAsync(song);
id = song.Id;
adds = Enumerable.Range(0, 100)
.Select(a => new Song { CreateTime = DateTime.Now, 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() + "\r\n\r\n" + _curdLog.Sb.ToString();
}
// GET api/values/5
[HttpGet("{id}")]
public ActionResult<object> Get(int id)
{
return _orm.Select<Song>().Where(a => a.Id == id).First();
}
[HttpGet("get{id}")]
public ActionResult<string> Get2(int id)
{
var item1 = _orm.Select<Song>().Where(a => a.Id == id).First();
var item2 = _orm.Select<Song>().Where(a => a.Id == id).First();
return _curdLog.Sb.ToString();
}
// 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)
{
}
}
}