Unity + EntityFramework + PRISM -“解决依赖失败”

本文关键字：依赖 失败 解决 EntityFramework PRISM Unity | 更新日期: 2023-09-27 18:01:28

我新的Unity/EF世界，我得到一个错误，当我执行我的测试新项目。

我有一个Prism首先引导:

class Bootstrapper : UnityBootstrapper
{
    protected override DependencyObject CreateShell()
    {
        return new Shell();
    }
    protected override void InitializeShell()
    {
        base.InitializeShell();

        Application.Current.MainWindow = (Window)this.Shell;
        Application.Current.MainWindow.Show();
    }
    protected override void ConfigureContainer()
    {
        base.ConfigureContainer();
        this.Container
            .RegisterType<IDataContextAsync, SistemaContext>(new ContainerControlledLifetimeManager())
            .RegisterType<IUnitOfWorkAsync, UnitOfWork>(new ContainerControlledLifetimeManager())

            .RegisterType<IRepositoryAsync<Cliente>, Repository<Cliente>>()
            .RegisterType<IClienteService, ClienteService>();
    }
    protected override void ConfigureModuleCatalog()
    {
        base.ConfigureModuleCatalog();
        ModuleCatalog moduleCatalog = (ModuleCatalog)this.ModuleCatalog;
        moduleCatalog.AddModule(typeof(CadastroModule.CadastroModule));
    }
}

和其他项目"CadastroModule"与CadastroModule:

public class CadastroModule : IModule
    {
        private readonly IRegionManager regionManager;
        public CadastroModule(IRegionManager regionManager)
        {
            this.regionManager = regionManager;
        }
        public void Initialize()
        {
            this.regionManager.RegisterViewWithRegion("MainRegion", typeof(Views.CadastroCliente));
        }
    }

那是我的EF。

public class SistemaContext : Sistema.Common.Repository.DataContext
{
    static SistemaContext()
    {//I dont know what to do here!
        //Database.SetInitializer<SistemaContext>(new MigrateDatabaseToLatestVersion<SistemaContext, Sistema.DataAccess.Migrations.Configuration>());
    }
    public SistemaContext()
        : base("Name=ContactsDb")
    {
    }
    public DbSet<Cliente> Cliente { get; set; }
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Configurations.Add(new Sistema.DataAccess.Mapping.ClienteConfig());
        modelBuilder.Configurations.Add(new Sistema.DataAccess.Mapping.EnderecoConfig());
    }
}

我需要"MigrateDatabaseToLatestVersion"用于自动迁移。

视图:

public partial class CadastroCliente : UserControl
{
    private readonly IClienteService _clienteService;
    private readonly IUnitOfWork _unitOfWork;
    public CadastroCliente()
    {
        InitializeComponent();
    }
    public CadastroCliente(IClienteService clienteService, IUnitOfWork unitOfWork)
    {
        _clienteService = clienteService;
        _unitOfWork = unitOfWork;
    }
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        dgv.DataContext = _clienteService.ClienteOrdenadoNome();
    }
}

UPDATE 1如果我取出IUnitOfWork它运行!: 

public partial class CadastroCliente : UserControl
{
    private readonly IClienteService _clienteService;
    private readonly IUnitOfWork _unitOfWork;
    public CadastroCliente()
    {
        InitializeComponent();
    }
    public CadastroCliente(IClienteService clienteService)
    {
        _clienteService = clienteService;
        InitializeComponent();
    }
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        dgv.DataContext = _clienteService.ClienteOrdenadoNome();
    }
}

我使用位于这里的工作存储库的通用单元:Link

错误如下:

异常发生时，容器为:解决CadastroModule.Views.CadastroCliente(没有)解析构造函数cadastromodule . views . cadastroclient (systemma . service .)的参数"unitOfWork"。system . common . repository . uow . iunitofwork解决Sistema.Common.Repository.UoW.IUnitOfWork(没有)

我检测到UnitOfWork何时获取上下文

公共类UnitOfWork: UnitOfWorkAsyncpublic UnitOfWork(IDataContextAsync dataContext) {_dataContext = dataContext;}

dataContext返回一个内部异常异常:

在创建模型时不能使用上下文。如果上下文在OnModelCreating方法中使用，或者多个线程同时访问同一个上下文实例，则可能引发此异常。注意DbContext和相关类的实例成员不能保证是线程安全的

我做错了什么?

Unity + EntityFramework + PRISM -“解决依赖失败”

问题在许多天后解决…在我使用的RepositoryFramework内部，EntityClasses需要从一个名为Entity的类继承:

public abstract class Entity : IObjectState
{
    [NotMapped]
    public ObjectState ObjectState { get; set; }
}

子类"Complex"(实体框架映射complextype配置<<em>*>)没有被继承。错误不在于UNIT/PRISM，而在于我使用的存储库本身。为了解决这个问题，我创建了一个新项目，不使用模块化PRISM，以便更简单地找到错误发生的地方。

所以…我的问题解决了，把":Entity"在我的子类:

public class Endereco : Entity //HERE
{
    public string Rua { get; set; }
    public int Numero { get; set; }
}
相关文章：