Question

我有一个奇怪的情绪，我有一个叫做User的大师班，这是一个抽象类。它包含3个始终从用户继承的儿童班（学生，推广人和BPC）。

我使用TPH（每个层次结构表）结构将其映射到数据库，Discriminator字段只是该类的名称。

学生与推广人有关系。它可以包含0或1个启动子。使用初始化程序，我确保学生具有相应的启动器。（它在发布后在我的数据库中正确显示）

当我尝试使用modelbinder从登录用户那里获取学生时，它会返回正确的学生，但是它说它不包含推文。

班级用户：

public abstract class User
{
    //TPH is default
    public int Id { get; set; }

    public String FirstName { get; set; }
    public String LastName { get; set; }
    public String Username { get; set; }
    public String Email { get; set; }

    public String Salt { get; set;}
    public String Password { get; set; }
    public DateTime LastLogin { get; set; }
    public String LastIp { get; set; }
    public DateTime LastPasswordChangedDate { get; set; }
    public DateTime CreationDate { get; set; }

    [NotMapped]
    public String PlainPassword { get; set; }

}

班级学生

public class Student : User
{
    public virtual Promotor Promotor { get; set; }
    public virtual CoPromotor CoPromotor { get; set; }
    public virtual ICollection<Suggestion> Suggestions { get; set; }

    public Student()
    {
        Suggestions = new Collection<Suggestion>();
    }
}

班级推广员

public class Promotor : User
{
    public virtual ICollection<Student> Students { get; set; }
    public List<User> users;
    private String message;

    public Promotor()
    {
        Students = new Collection<Student>();
        users = new List<User>();
    }
}

用户模型活页夹

public class UserModelBinder : IModelBinder
{
    public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
    {
        if (controllerContext.HttpContext.User.Identity.IsAuthenticated)
        {
            IUserRepository repos =
                (IUserRepository) DependencyResolver.Current.GetService(typeof (IUserRepository));
            return repos.FindByUsername(controllerContext.HttpContext.User.Identity.Name);
        }
        return null;
    }
}

控制器中的操作

[HttpPost]
public ActionResult Create(CreateViewModel model, User user, string btnSaveSend)
{
     var student = (Student) user; //here the attribute Promotor is NULL
}

用户映射器：

public class UserMapper : EntityTypeConfiguration<User>
{
    public UserMapper()
    {
        ToTable("user");  

        // Primary key
        HasKey(u => u.Id);

        // Properties
        Property(u => u.Id).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
        Property(u => u.FirstName).IsRequired();
        Property(u => u.LastName).IsRequired();
        Property(u => u.Email).IsRequired();
        Property(u => u.Salt).IsRequired();
        Property(u => u.Username).IsRequired();
        Property(u => u.Password).IsRequired();
        Property(u => u.LastLogin);
        Property(u => u.LastIp);
        Property(u => u.CreationDate).IsRequired();
        Property(u => u.LastPasswordChangedDate).IsRequired();
    }
}

学生映射器

public class StudentMapper : EntityTypeConfiguration<Student>
{
    public StudentMapper()
    {
        HasMany(s => s.Suggestions).WithRequired(s => s.Student);
        HasRequired(s => s.Promotor).WithMany(s => s.Students);
    }
 }

UserRepository：

public User FindByUsername(string name)
 {
     return users.FirstOrDefault(u => u.Username.ToLower() == name.ToLower());
 }

映射不起作用？

0 个答案: