我已经在MVC5中创建了一个类,其中我想要一个内容的主要所有者,然后我想要一些内容的编辑器:
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; }
}
在数据库上下文中,我有以下代码:
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();
}
我期望微软以这种方式实现IdentityUser
对象,这样它就可以在其他实体类型中使用,所以我可能做错了什么,因为当我尝试为Content实体类型创建控制器时,我得到以下错误:
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
我还尝试按照这个问题Map tables using fluent api in asp.net MVC5 EF6?中的描述将以下代码添加到ApplicationDbContext
中
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。请告诉我如何在我的Content EntityType中处理用户。
发布于 2013-11-12 05:57:35
下面的方法OnModelCreating
将创建一个工作上下文。不过,我不确定这是否是您想要的映射。
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 });
}
发布于 2014-07-07 17:48:26
我也有同样的问题,我发现我没有打电话
base.OnModelCreating(modelBuilder);
在我的DbModel
https://stackoverflow.com/questions/19913447
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