实体框架6:引用UserProfile

Question

我试图用自定义DBInitializer编写一个ASP.MVC应用程序，但我遇到了错误：

附加信息:元数据集合中不存在带有标识'MailMail.Models.MailDbContext.Video_UserProfile‘的成员。

我有录像课：

public class Video : Entity
{
    public string Name { get; set; }
    public string Path { get; set; }
    public virtual UserProfile UserProfile { get; set; }
}

我的DBInitializer：

 public class MailDbInitializer : DropCreateDatabaseAlways<MailDbContext>
    {
        protected override void Seed(MailDbContext context)
        {
            UsersContext userContext = new UsersContext();

            if (!WebMatrix.WebData.WebSecurity.Initialized)
            {
                WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
            }


            var mongol1 = new { Email="mail2@mail", UserName="Tom"};
            var mongol2 = new { Email = "mail@mail", UserName = "Karola" };
            WebSecurity.CreateUserAndAccount(mongol1.UserName, "secret", mongol1);

            Task<UserProfile> user1Task = userContext.UserProfiles.SingleOrDefaultAsync(o => o.UserName == mongol1.UserName);
            user1Task.Wait();
            UserProfile user1 = user1Task.Result;

            WebSecurity.CreateUserAndAccount(mongol2.UserName, "123456", mongol2);
            Task<UserProfile> user2Task = userContext.UserProfiles.SingleOrDefaultAsync(o => o.UserName == mongol2.UserName);
            user2Task.Wait();
            UserProfile user2 = user1Task.Result; 



            Video video1 = new Video() {Name="Moje wideo", UserProfile=user1, Path = "~/App_Data/"+user1.UserId+"/Video1"};
            Video video2 = new Video() { Name = "Moje wideo", UserProfile = user1, Path = "~/App_Data/" + user1.UserId + "/Video2" };
            Video video3 = new Video() { Name = "Moje wideo", UserProfile = user2, Path = "~/App_Data/" + user2.UserId + "/Video3" };
            Video video4 = new Video() { Name = "Moje wideo", UserProfile = user2, Path = "~/App_Data/" + user2.UserId + "/Video4" };

            context.Videos.Add(video1);  //HERE ocures the error!
            context.Videos.Add(video2);

我认为这可能与不同的背景有关。我说的对吗？

Answer 1

问题是我有两个不同的上下文，它们都指向同一个数据库。我的解决办法是:我刚刚复制了

 public DbSet<UserProfile> UserProfiles { get; set; }

我主要的DBContext课程。解决了问题:-)