脚手架时Web api Odata错误

Question

我试图为这个实体搭建Odata控制器:

        #region Attributes

        public Guid TreningId { get; set; }
        public DateTime DateTimeWhenTreningCreated { get; set; }

        #endregion

        #region Navigational properties

        public string UserId { get; set; }
        public User User { get; set; }

        public int RoutineId { get; set; }
        public Routine Routine { get; set; }


        #endregion

脚手架很好,我也使用ASP.net Identity,但我的用户类和数据库上下文在另一个项目中定义如下:

public class User : IdentityUser
    {
        public String Something { get; set; }

    }

And database context looks like this:

     public class DatabaseContext : IdentityDbContext<User>
        {
            public MadBarzDatabaseContext()
                : base("DefaultConnection")
            {
                Configuration.LazyLoadingEnabled = true;
            }
           ...

 protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Entity<IdentityUser>()
                .ToTable("Users");
            modelBuilder.Entity<User>()
                .ToTable("Users");
}
    }

注意:我没有任何地方:

public DbSet<User> Users{ get; set; }

所以在脚手架之后,我的Web api项目将这一行添加到我的类DatabaseContext中:

public DbSet<User> IdentityUsers { get; set; }

但是当我试图从数据库中获取任何东西时,我得到了错误:

    Multiple object sets per type are not supported. The object sets 'IdentityUsers' and 'Users' can both contain instances of type 'Domain.Model.UserAggregate.User'.

如果我删除该行,我会收到错误:

An exception of type 'System.IO.FileLoadException' occurred in mscorlib.dll but was not handled in user code

Additional information: Could not load file or assembly 'System.Web.Mvc, Version=5.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

在线(在我的WebApiConfig中)

config.Routes.MapODataRoute("odata", "odata", builder.GetEdmModel());

如果删除行(来自我的WebApiConfig):

builder.EntitySet<Trening>("Trening");
builder.EntitySet<User>("IdentityUsers"); 

一切都再好了.因此问题可能是我的用户实体,所以我该如何解决这个问题呢？(当我脚手架任何与用户无关的东西时,一切都很好)

编辑

我也从我的trening控制器中删除了这些行:

// GET odata/Trening(5)/User
        [Queryable]
        public SingleResult<User> GetUser([FromODataUri] Guid key)
        {
            return SingleResult.Create(db.Trenings.Where(m => m.TreningId == key).Select(m => m.User));
        }

并将这些行添加到WebApiConfig:

trenings.EntityType.Ignore(t => t.User);
trenings.EntityType.Ignore(t => t.UserId);

但它没有帮助.

编辑2

所以我决定制作新的测试项目并且我已经按照这些教程(所有这些都基本相同):

教程1 教程2 教程3 教程4

所以我使用Application用户类扩展了Identity User并添加了如下测试模型:

public class TestModel
{
    public int Id { get; set; }
    public string Test { get; set; }


    public string UserId { get; set; }
    public ApplicationUser ApplicationUser { get; set; }
}

这是整个IdentityModels类:

namespace WebApplication2.Models
{

public class ApplicationUser : IdentityUser
{
    public string Email { get; set; }
    public string Data { get; set; }

    public ICollection<TestModel> TestModels { get; set; }

}

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("DefaultConnection")
    {
    }



    public DbSet<TestModel> TestModels { get; set; }
}
}

并且错误保持不变,

我试图在测试模型中用IdentityUser替换ApplicationUser,我添加了这一行:

public DbSet ApplicationUsers {get; 组; }

但仍然是同样的错误.

注意:这次我用TestModel搭建了Odata控制器.

Answer 1

以前没见过这个错误。根据您的错误消息，这些行似乎给您带来了麻烦：

        modelBuilder.Entity<IdentityUser>()
            .ToTable("Users");
        modelBuilder.Entity<User>()
            .ToTable("Users");