實體類型'Microsoft.AspNet.Identity.EntityFramework.IdentityUserLogin '需要定義一個密鑰

asp.net-identity asp.net-mvc c# entity-framework-core

我有一個使用EF7的ASP.NET5 MVC應用程序。它到目前為止工作得很好,我能夠在數據庫中添加遷移和持久數據。現在,在將Identity添加到我的數據層項目後,我在嘗試添加新遷移時遇到此錯誤:

實體類型'Microsoft.AspNet.Identity.EntityFramework.IdentityUserLogin'需要定義一個鍵

我的上下文源自IdentityDbContext:

public class ASSWebApiContext : IdentityDbContext<AppUser>

AppUser類:

using Microsoft.AspNet.Identity.EntityFramework;
using System;

namespace ASS.DomainDataModel.Models
{
    public class AppUser : IdentityUser
    {
        public string AppUserId { get; set; }
        public DateTime FirstFlight { get; set; }
    }
}

project.json

{
  "version": "1.0.0-*",
  "description": "ASS.DomainDataModel Class Library",
  "authors": [ "xxxx" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",

  "frameworks": {
    "dnx451": {
      "dependencies": {
      }
    },
    "dnxcore50": {
      "dependencies": {
      }
    }
  },

  "dependencies": {
    "ASS.DomainClasses": "1.0.0-*",
    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
    "EntityFramework.Core": "7.0.0-rc1-final",
    "EntityFramework.Commands": "7.0.0-rc1-final",
    "EntityFramework.Relational": "7.0.0-rc1-final",
    "System.Linq.Expressions": "4.0.11-beta-23516",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final"
  },

    "commands": {
    "ef": "EntityFramework.Commands"
  }
}

我在這裡所做的就是加載相關的新軟件包:“Microsoft.AspNet.Identity.EntityFramework”:“3.0.0-rc1-final”,添加了AppUser類 - 沒有別的。我有一個類似的項目使用beta-8使用完全相同的模式,它沒有問題。 beta-8和rc-1之間是否有任何相關變化?

謝謝!

以下是ASSWebApiContext的一部分。對於大多數具有DbSet的實體,都有一個modelBuilder.Entity。所以這個文件還有很長一段時間......

using Microsoft.Data.Entity;
using ASS.DomainClasses.Entities;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.PlatformAbstractions;
using System.Linq;
using ASS.DomainClasses.Interfaces;
using System;
using Microsoft.AspNet.Identity.EntityFramework;

namespace ASS.DomainDataModel.Models
{
    public class ASSWebApiContext : IdentityDbContext<AppUser>
    {
        public IConfigurationBuilder Config { get; set; }
        public IConfigurationRoot _Configuration { get; private set; }

        public ASSWebApiContext(IApplicationEnvironment appEnv)
        {
            Database.EnsureCreated();

            Config = new ConfigurationBuilder()
                .SetBasePath(appEnv.ApplicationBasePath)
                .AddJsonFile("config.json");

            _Configuration = Config.Build();

        }

        public DbSet<Address> Addresses { get; set; }
        public DbSet<AddressType> AddressTypes { get; set; }
        public DbSet<Aircraft> Aircrafts { get; set; }
        public DbSet<AircraftModel> AircraftModels { get; set; }
        public DbSet<AircraftOwner> AircraftOwners { get; set; }
        public DbSet<AircraftOwnerType> AircraftOwnerTypes { get; set; }
        public DbSet<Country> Countries { get; set; }
        public DbSet<GPEncodingType> GPEncodingTypes { get; set; }
        public DbSet<LocationPoint> LocationPoints { get; set; }
        public DbSet<Manufacturer> Manufacturer { get; set; }
        public DbSet<Pilot> Pilots { get; set; }
        public DbSet<ServiceProvider> ServiceProviders { get; set; }
        public DbSet<State> States { get; set; }
        public DbSet<Trip> Trips { get; set; }
        public DbSet<Stop> Stops { get; set; }
        public DbSet<Track> Tracks { get; set; }


        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {


            modelBuilder.Entity<AddressType>(
                e =>
                {
                    e.Property(n => n.AddressTypeId).IsRequired().UseSqlServerIdentityColumn();
                    e.Property(n => n.Name).IsRequired().HasMaxLength(15);
                    e.Ignore(n => n.IsDirty);
                });

            modelBuilder.Entity<Address>(
                e =>
                {
                    e.Property(n => n.AddressId).IsRequired().UseSqlServerIdentityColumn();
                    e.Property(n => n.AddressTypeId).IsRequired();
                    e.Property(i => i.CountryId).HasMaxLength(2);
                    e.Property(i => i.AddrLine1).HasMaxLength(256);
                    e.Property(i => i.AddrLine2).HasMaxLength(256);
                    e.Property(i => i.AddrLine3).HasMaxLength(256);
                    e.Property(i => i.Postcode).HasMaxLength(50);
                    e.Ignore(n => n.IsDirty);
                });
...

一般承認的答案

基本上認同表的鍵映射OnModelCreating的方法IdentityDbContext如果這個方法不叫,你最終會得到你得到了錯誤。如果您從IdentityDbContext派生並且像在代碼中一樣提供自己的OnModelCreating定義,則不會調用此方法。使用此設置,您必須使用base.OnModelCreating語句顯式調用IdentityDbContextOnModelCreating方法。 這個答案還討論了我在這裡發布的選項



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許可下: CC-BY-SA with attribution
不隸屬於 Stack Overflow
這個KB合法嗎? 是的,了解原因