Question

我使用的是asp.net身份，2.21版本。只要在Global.asax中触发了AppDbInitializer，LibraryContext中的所有表都将被删除。所以我得到SqlException：无效的对象名称＆＃39; dbo.Books＆＃39;错误。我想，问题出在我的初始化者身上，但不知道在哪里。所有表都使用相同的＆＃34; DefaultConnection＆＃34;字符串。

我的LibraryContext和初始化程序：

public class Library : DbContext
{
    public Library(string connectionString)
       : base(connectionString)
    {
        Database.SetInitializer(new LibraryDbInitializer());
    }
    public DbSet<Book> Books { get; set; }        
}

public class LibraryDbInitializer : DropCreateDatabaseAlways<Library>
{
    protected override void Seed(Library db)
    {
        //shortened for brevity
        base.Seed(db);
    }
}

身份初始化程序：

public class AppDbInitializer : DropCreateDatabaseAlways<ApplicationDbContext>
{
    protected override void Seed(ApplicationDbContext context)
    {
        var userManager = new ApplicationUserManager(new UserStore<ApplicationUser>(context));

        var roleManager = new RoleManager<IdentityRole>(new RoleStore<IdentityRole>(context));

        var role1 = new IdentityRole { Name = "admin" };
        var role2 = new IdentityRole { Name = "user" };

        roleManager.Create(role1);
        roleManager.Create(role2);

        var admin = new ApplicationUser { Email = "somemail@mail.ru", UserName = "somemail@mail.ru" };
        string password = "ad46D_ewr3";
        var result = userManager.Create(admin, password);

        if (result.Succeeded)
        {
            userManager.AddToRole(admin.Id, role1.Name);
            userManager.AddToRole(admin.Id, role2.Name);
        }

        base.Seed(context);
    }
}

Answer 1

我在这里为CreateDatabaseIfNotExists更改了DropCreateDatabaseAlways：。

public class AppDbInitializer : CreateDatabaseIfNotExists<ApplicationDbContext>// DropCreateDatabaseAlways was

现在它正在发挥作用！）

ASP.NET Identity 2初始化程序删除了我的所有表

1 个答案: