实体类型'AspNetUserLogins'需要定义主键吗？

问题描述 投票：0回答：4

我用EF架设了数据库，并且将mydbcontext更改为从IdentityDbContext继承，因为我希望所有内容都在dbcontext之下。

问题是，当我启动应用程序并在登录页面中写入凭据时，出现异常：

实体类型'AspNetUserLogins'需要定义主键

我以前没听说过，因为我打电话给base.OnModelCreating(modelBuilder);我在做什么错了？

public partial class AdventuresContext : IdentityDbContext<ApplicationUser> 
{
    public AdventuresContext()
    {
    }

    public AdventuresContext(DbContextOptions<AdventuresContext> options)
        : base(options)
    {
    }

    public virtual DbSet<Adventures> Adventures { get; set; }
    public virtual DbSet<AspNetRoleClaims> AspNetRoleClaims { get; set; }
    public virtual DbSet<AspNetRoles> AspNetRoles { get; set; }
    public virtual DbSet<AspNetUserClaims> AspNetUserClaims { get; set; }
    public virtual DbSet<AspNetUserLogins> AspNetUserLogins { get; set; }
    public virtual DbSet<AspNetUserRoles> AspNetUserRoles { get; set; }
    public virtual DbSet<AspNetUserTokens> AspNetUserTokens { get; set; }
    public virtual DbSet<AspNetUsers> AspNetUsers { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            optionsBuilder.UseSqlServer("Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=Adventures");
        }
    }

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

        modelBuilder.HasAnnotation("ProductVersion", "2.2.4-servicing-10062");

        modelBuilder.Entity<Adventures>(entity =>
        {
            entity.HasIndex(e => e.UserId);

            entity.Property(e => e.CountryCodeIso03from).HasColumnName("CountryCodeISO03From");

            entity.Property(e => e.CountryCodeIso03to).HasColumnName("CountryCodeISO03To");

            entity.Property(e => e.Name).HasMaxLength(50);

            entity.Property(e => e.ShortDescription).HasMaxLength(128);

            entity.Property(e => e.Timestamp).IsRowVersion();

            entity.Property(e => e.UserId).IsRequired();

            entity.HasOne(d => d.User)
                .WithMany(p => p.Adventures)
                .HasForeignKey(d => d.UserId)
                .OnDelete(DeleteBehavior.ClientSetNull)
                .HasConstraintName("FK_Adventures_Adventures");
        });
     }
 }
c# entity-framework asp.net-core entity-framework-6 identity
4个回答
0
投票

我相信有两种方法可以解决此问题。

您可以在AspNetUserLogins类的公共属性上使用吸气剂和设置器添加[Key]，例如：

[Key]
public int SomeFieldName {get;set;}

或者您可以使用OnModelCreating重写来调用HasNoKey（），例如：

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder
    .Entity<AspNetUserLogins>(o =>
    {
        o.HasNoKey();
    });
}
0
投票

AspNetUsersLogins是Identity随附的标准类。它有2个主键，分别是LoginProvider和ProviderKey。我试图将它们从字符串更改为Guid，但仍然是相同的消息。我还尝试将两个属性都赋予[Key]属性，但我有一个异常：“ InvalidOperationException：实体类型'AspNetUserLogins'具有通过数据注释定义的复合主键。要设置复合主键，请使用fluent API。” 。还有其他想法吗？EF架设的AspNetUsersLogins看起来像这样：

public partial class AspNetUserLogins
{

    public string LoginProvider { get; set; }
    public string ProviderKey { get; set; }
    public string ProviderDisplayName { get; set; }
    public string UserId { get; set; }

    public virtual AspNetUsers User { get; set; }
}
0
投票

由于您继承自IdentityDbContext，因此无需重新创建AspNet* DbSet，建议您删除所有内置的DbSet<AspNet*>和modelBuilder.Entity<AspNet*>.

public partial class AdventuresContext : IdentityDbContext<ApplicationUser>
{
    public AdventuresContext ()
    {
    }

    public AdventuresContext (DbContextOptions<AdventuresContext> options)
        : base(options)
    {
    }

    public virtual DbSet<Adventures> Adventures { get; set; }
    //remove below DbSet
    //public virtual DbSet<AspNetRoleClaims> AspNetRoleClaims { get; set; }
    //public virtual DbSet<AspNetRoles> AspNetRoles { get; set; }
    //public virtual DbSet<AspNetUserClaims> AspNetUserClaims { get; set; }
    //public virtual DbSet<AspNetUserLogins> AspNetUserLogins { get; set; }
    //public virtual DbSet<AspNetUserRoles> AspNetUserRoles { get; set; }
    //public virtual DbSet<AspNetUserTokens> AspNetUserTokens { get; set; }
    //public virtual DbSet<AspNetUsers> AspNetUsers { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            optionsBuilder.UseSqlServer("Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=Adventures");
        }
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        //...
    } 
}
0
投票

这是我的ApplicationUser类，可能有帮助：

public class ApplicationUser : IdentityUser
{
    public string Genre { get; set; }

    public DateTime Birth { get; set; }
}

这是我收到的例外：

System.InvalidOperationException: The entity type 'AspNetUserLogins' requires a primary key to be defined.
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelValidator.ValidateNonNullPrimaryKeys(IModel model)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelValidator.Validate(IModel model)
   at Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelValidator.Validate(IModel model)
   at Microsoft.EntityFrameworkCore.Internal.SqlServerModelValidator.Validate(IModel model)
   at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ValidatingConvention.Apply(InternalModelBuilder modelBuilder)
   at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnModelBuilt(InternalModelBuilder modelBuilder)
   at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.OnModelBuilt(InternalModelBuilder modelBuilder)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.Model.Validate()
   at Microsoft.EntityFrameworkCore.ModelBuilder.FinalizeModel()
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.<>c__DisplayClass5_0.<GetModel>b__1()
   at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
   at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
   at System.Lazy`1.CreateValue()
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.GetModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator)
   at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel()
   at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model()
   at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder.<>c.<TryAddCoreServices>b__7_2(IServiceProvider p)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies()
   at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider()
   at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies()
   at Microsoft.EntityFrameworkCore.DbContext.Set[TEntity]()
   at Microsoft.AspNetCore.Identity.EntityFrameworkCore.UserStore`9.get_UsersSet()
   at Microsoft.AspNetCore.Identity.EntityFrameworkCore.UserStore`9.get_Users()
   at Microsoft.AspNetCore.Identity.EntityFrameworkCore.UserStore`9.FindByNameAsync(String normalizedUserName, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Identity.UserManager`1.FindByNameAsync(String userName)
   at Microsoft.AspNetCore.Identity.SignInManager`1.PasswordSignInAsync(String userName, String password, Boolean isPersistent, Boolean lockoutOnFailure)
   at BananaAdventuresX.Controllers.AccountController.Login(LoginViewModel model, String returnUrl) in C:\Users\aahedoe1\source\repos\BananaAdventuresX\BananaAdventuresX\Controllers\AccountController.cs:line 71
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

引发异常的行是此行：

BananaAdventuresX.Controllers.AccountController.Login(LoginViewModel model, string returnUrl) in AccountController.cs
var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, false);
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