在我的带有Entity Framework的MVC应用程序中,我有2个上下文。一个是我的业务数据(DemoPoolEntities
),另一个是ASPNet身份数据,如ASPNetUsers和ASPNetRoles(ApplicationDbCcontext
)。数据全部存储在同一个数据库中。我将它们分别分别放在我的项目DemoPoolModels.cs
和IdentityModels.cs
中的两个不同模型中。
我需要将数据从ApplicationDbContext传递到我的DemoPoolEntities上下文,以便在我的一些视图中显示它们。
例如,我的数据库中有一个Customer
对象。 Customer
位于DemoPoolEntities
上下文中,但与AspNetUser
中的ApplicationDbContext
具有外键关系。我需要在ASPNetUser
控制器的Index
视图中显示此Customer
,这将显示客户所属的用户。
然而,当我进入视图时,我不断收到以下错误:
System.Data.Entity.Core.EntityCommandExecutionException: 'An error occurred while executing the command definition. See the inner exception for details.'
'Inner Exception
SqlException: Invalid column name 'AspNetUser_Id'.'
CustomerController.cs
// GET: Customers
[Authorize(Roles = "Admin, User")]
public ActionResult Index()
{
return View(db.Customers.ToList());
}
客户视图(Index.cshtml)
@Html.DisplayFor(modelItem => item.UserId)
在我的客户模式中
[StringLength(128)]
public string UserId { get; set; }
public virtual ApplicationUser AspNetUser { get; set; }
IdentityModels.cs
namespace DemoPool.Models
{
// You can add profile data for the user by adding more properties to your ApplicationUser class, please visit https://go.microsoft.com/fwlink/?LinkID=317594 to learn more.
public class ApplicationUser : IdentityUser
{
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
}
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("DemoPoolEntities", throwIfV1Schema: false)
{
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
}
}
DemoPoolModels.cs
public partial class DemoPoolEntities : DbContext
{
public DemoPoolEntities()
: base("name=DemoPoolEntities")
{
}
public virtual DbSet<Customer> Customers { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<Customer>()
.Property(e => e.CompanyName)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.FirstName)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.LastName)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.PhoneNumber)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.Email)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.Address1)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.Address2)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.City)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.State)
.IsUnicode(false);
modelBuilder.Entity<Customer>()
.Property(e => e.Zip)
.IsUnicode(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 });
}
所以我的问题是,当ASPNetUser
视图位于两个不同的上下文中时,如何获取Customer
引用的Customer
信息,并且我应该采用不同的方式这样做?
答案 0 :(得分:0)
我通过为我尝试访问的EF对象创建模型来实现此目的。所以在这种情况下我为ASPNetUser创建了一个模型。这似乎有效。