asp.net-mvc-4 – 实体框架代码第一个多对多关系和继承

我正在尝试在MVC4项目上设置EF Code First.我有一个继承自Person的用户和客户.然后我有一个Template对象,它与Customer有多对多的关系,与User有一对多的关系.以下是我设置的方法：

楷模

public class Person
{
    [Key]
    public int PersonID { get; set; }

    public string LastName { get; set; }
    public string FirstName { get; set; }

    public string FullName
    {
        get
        {
            return String.Format("{0} {1}",FirstName,LastName);
        }
    }

    public string Email { get; set; }

    public virtual List<Template> Templates { get; set; }
}

public class User : Person
{
    .... 
}

public class Customer : Person
{
    ....
}

public class Template
{
    public int TemplateId { get; set; }
    public string TemplateName { get; set; }

    public virtual List<Customer> Customers { get; set; }

    [ForeignKey("User")]
    public int UserId { get; set; }
    public virtual User User { get; set; }
}

CONTEXT

public class ProjectContext : DbContext
{
    public ProjectContext()
        : base("name=ProjectDB")
    {
    }

    public DbSet<Template> Templates { get; set; }
    public DbSet<User> Users { get; set; }
    public DbSet<Customer> Customers { get; set; }
    public DbSet<Person> People { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Conventions
            .Remove<PluralizingTableNameConvention>();

        modelBuilder.Entity<Template>()
            .HasMany(x => x.Customers)
            .WithMany(x => x.Templates)
            .Map(x => x.MapLeftKey("TemplateId")
                .MapRightKey("PersonId")
                .ToTable("TemplateCustomer")
            );
    }
}

如果我从上下文中删除Person DBSet,这可以正常工作但设置TPT继承.我想使用TPH继承,但是当我在上下文中启用Person DBSet的迁移时,它会阻塞：

NavigationProperty“模板”无效.在AssociationType’MvcProject.Models.Template_Customers’中键入FromRole’Template_Customers_Target’的’MvcProject.Models.Customer’必须与声明此NavigationProperty的类型’MvcProject.Models.Person’完全匹配.

我在哪里错了？