用户在实体类型MVC5 EF6 [英] User in Entity type MVC5 EF6

问题描述

我已经创建了MVC5，在这里我想内容的主要所有者，然后我想有一些内容编辑类：

I have created a class in MVC5, where I want a primary owner of the content and then I want to have some editors for the content:

public class Content
{
    public int ID { get; set; }
    public IdentityUser Owner { get; set; }
    public ICollection<IdentityUser> Editors { get; set; }
    public string Title{ get; set; }
    public string Body { get; set; }
}

在我有以下的code中的数据库上下文：

In the database context I have the following code:

protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    base.OnModelCreating(modelBuilder);

    modelBuilder.Entity<Content>()
        .HasOptional(c => c.Editors)
        .WithRequired()
        .WillCascadeOnDelete();

    modelBuilder.Entity<Content>()
        .HasRequired(c => c.Owner)
        .WithOptional()
        .WillCascadeOnDelete();
}

我希望微软已经实现了 IdentityUser 对象以这样一种方式，它可以在其他实体类型使用，所以我可能做错了什么，因为当我试图做一个控制器为内容实体类型，我得到以下错误：

I would expect Microsoft to have implemented the IdentityUser object in such a way, that it can be used in other entity types, so I am probably doing something wrong, because when I try to make a controller for the Content entity type, I get the following error:

EntityType 'IdentityUserLogin' has no key defined
EntityType 'IdentityUserRole' has no key defined
EntityType: EntitySet 'IdentityUserLogins' is based on type 'IdentityUserLogin' that has no key defined
EntityType: EntitySet 'IdentityUserRoles' is based on type 'IdentityUserRole' that has no key defined

我也曾尝试以下code添加到 ApplicationDbContext 在这个问题描述<一个href=\"http://stackoverflow.com/questions/19474662/map-tables-using-fluent-api-in-asp-net-mvc5-ef6\">Map在asp.net MVC5 EF6用流利的API表：

protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    base.OnModelCreating(modelBuilder);
    modelBuilder.Entity<IdentityUserLogin>().HasKey<string>(l => l.UserId);
    modelBuilder.Entity<IdentityRole>().HasKey<string>(r => r.Id);
    modelBuilder.Entity<IdentityUserRole>().HasKey(r => new { r.RoleId, r.UserId });
}

我一定是做错了什么。请告诉我，我怎么能在我的内容的EntityType处理用户。

I must be doing something wrong. Please tell me how I can handle users in my Content EntityType.

推荐答案

下面的方法， OnModelCreating ，将创建​​一个工作环境。不知道这是否是你想要的，虽然映射。

The following method, OnModelCreating, will create a working context. Not sure if it is the mapping you want though.

protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    base.OnModelCreating(modelBuilder);

    modelBuilder.Entity<Content>()
        .HasMany(c => c.Editors)
        .WithOptional()
        .WillCascadeOnDelete(false);

    modelBuilder.Entity<Content>()
        .HasRequired(c => c.Owner)
        .WithOptional()
        .WillCascadeOnDelete(false);

    modelBuilder.Entity<IdentityUserLogin>().HasKey<string>(l => l.UserId);
    modelBuilder.Entity<IdentityRole>().HasKey<string>(r => r.Id);
    modelBuilder.Entity<IdentityUserRole>().HasKey(r => new { r.RoleId, r.UserId });
}

这篇关于用户在实体类型MVC5 EF6的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！