- 增加 UnitOfWorkManager 工作单元管理器，实现多种传播事务；#289

Examples/aspnetcore_transaction/Controllers/HomeController.cs

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+using FreeSql;
+using FreeSql.DataAnnotations;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace aspnetcore_transaction.Controllers
+{
+    [ApiController]
+    [Route("")]
+    public class HomeController : ControllerBase
+    {
+        private readonly ILogger<HomeController> _logger;
+
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+        }
+
+        [HttpGet]
+        //[Transactional]
+        virtual public object Get([FromServices] BaseRepository<Song> repoSong, [FromServices] BaseRepository<Detail> repoDetail, [FromServices] SongRepository repoSong2,
+            [FromServices] SongService serviceSong)
+        {
+            serviceSong.Test();
+            return "111";
+        }
+    }
+
+    public class SongService
+    {
+        BaseRepository<Song> _repoSong;
+        BaseRepository<Detail> _repoDetail;
+        SongRepository _repoSong2;
+
+        public SongService(BaseRepository<Song> repoSong, BaseRepository<Detail> repoDetail, SongRepository repoSong2)
+        {
+            _repoSong = repoSong;
+            _repoDetail = repoDetail;
+            _repoSong2 = repoSong2;
+        }
+
+        [Transactional]
+        public virtual void Test()
+        {
+            _repoSong.Insert(new Song());
+            _repoDetail.Insert(new Detail());
+            _repoSong2.Insert(new Song());
+        }
+    }
+
+    public class SongRepository : DefaultRepository<Song, int>
+    {
+        public SongRepository(UnitOfWorkManager uowm) : base(uowm?.Orm, uowm) { }
+    }
+
+    public class Song
+    {
+        [Column(IsIdentity = true)]
+        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; }
+    }
+}

Examples/aspnetcore_transaction/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace aspnetcore_transaction
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                })
+                .UseServiceProviderFactory(new FreeSql.DynamicProxyServiceProviderFactory());
+    }
+}

Examples/aspnetcore_transaction/Properties/launchSettings.json

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+{
+    "iisSettings": {
+        "windowsAuthentication": false,
+        "anonymousAuthentication": true,
+        "iisExpress": {
+            "applicationUrl": "http://localhost:35350/",
+            "sslPort": 0
+        }
+    },
+    "profiles": {
+        "IIS Express": {
+            "commandName": "IISExpress",
+            "launchBrowser": true,
+            "environmentVariables": {
+                "ASPNETCORE_ENVIRONMENT": "Development"
+            }
+        },
+        "dbcontext_01": {
+            "commandName": "Project",
+            "launchBrowser": true,
+            "environmentVariables": {
+                "ASPNETCORE_ENVIRONMENT": "Development"
+            },
+            "applicationUrl": "http://localhost:35351/"
+        }
+    }
+}

Examples/aspnetcore_transaction/Startup.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using aspnetcore_transaction.Controllers;
+using FreeSql;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.HttpsPolicy;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace aspnetcore_transaction
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+            Fsql = new FreeSql.FreeSqlBuilder()
+                 .UseConnectionString(FreeSql.DataType.Sqlite, @"Data Source=|DataDirectory|\test_trans.db")
+                 .UseAutoSyncStructure(true)
+                 .UseMonitorCommand(cmd => Trace.WriteLine(cmd.CommandText))
+                 .UseNoneCommandParameter(true)
+                 .Build();
+        }
+
+        public IConfiguration Configuration { get; }
+        public static IFreeSql Fsql { get; private set; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddControllersWithViews();
+
+            services.AddSingleton<IFreeSql>(Fsql);
+            services.AddScoped<UnitOfWorkManager>();
+            services.AddFreeRepository(null, typeof(Startup).Assembly);
+            services.AddScoped<SongService>();
+        }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+            Console.OutputEncoding = Encoding.GetEncoding("GB2312");
+            Console.InputEncoding = Encoding.GetEncoding("GB2312");
+
+            app.UseHttpMethodOverride(new HttpMethodOverrideOptions { FormFieldName = "X-Http-Method-Override" });
+            app.UseDeveloperExceptionPage();
+            app.UseRouting();
+            app.UseEndpoints(a => a.MapControllers());
+        }
+    }
+}

Examples/aspnetcore_transaction/TransactionalAttribute.cs

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+using FreeSql;
+using Microsoft.AspNetCore.Mvc.Filters;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FreeSql
+{
+    /// <summary>
+    /// 使用事务执行，请查看 Program.cs 代码开启动态代理
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Method)]
+    public class TransactionalAttribute : DynamicProxyAttribute, IActionFilter
+    {
+        public Propagation Propagation { get; set; } = Propagation.Requierd;
+        public IsolationLevel? IsolationLevel { get; set; }
+
+        [DynamicProxyFromServices]
+        UnitOfWorkManager _uowManager;
+        IUnitOfWork _uow;
+
+        public override Task Before(DynamicProxyBeforeArguments args) => OnBefore(_uowManager);
+        public override Task After(DynamicProxyAfterArguments args) => OnAfter(args.Exception);
+
+        //这里是为了 controller 
+        public void OnActionExecuting(ActionExecutingContext context) => OnBefore(context.HttpContext.RequestServices.GetService(typeof(UnitOfWorkManager)) as UnitOfWorkManager);
+        public void OnActionExecuted(ActionExecutedContext context) => OnAfter(context.Exception);
+
+
+        Task OnBefore(UnitOfWorkManager uowm)
+        {
+            _uow = uowm.Begin(this.Propagation, this.IsolationLevel);
+            return Task.FromResult(false);
+        }
+        Task OnAfter(Exception ex)
+        {
+            try
+            {
+                if (ex == null) _uow.Commit();
+                else _uow.Rollback();
+            }
+            finally
+            {
+                _uow.Dispose();
+            }
+            return Task.FromResult(false);
+        }
+    }
+}

Examples/aspnetcore_transaction/aspnetcore_transaction.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FreeSql.DynamicProxy" Version="1.2.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\FreeSql.DbContext\FreeSql.DbContext.csproj" />
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.Sqlite\FreeSql.Provider.Sqlite.csproj" />
+  </ItemGroup>
+  
+</Project>