.NETCORE標識主鍵

我想爲我們的項目使用AspNetCore標識，我們正在使用Postgresql數據庫。.NETCORE標識主鍵

我是初級開發者，今天我的任務就是要改變標識的主鍵的INT，我已經研究並發現這篇文章 https://medium.com/@goodealsnow/asp-net-core-identity-3-0-6018fc151b4#.k602cypgb

，但它並不能幫助我，所以我有一些錯誤。

這是我ApplicationDbContext.cs

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Threading.Tasks; 
using Microsoft.AspNetCore.Identity.EntityFrameworkCore; 
using Microsoft.EntityFrameworkCore; 
using Identitytest.Models; 

namespace Identitytest.Data 
{ 
    public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityRole<int>, int> 
    { 
     public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) 
      : base(options) 
     { 
     } 

     protected override void OnModelCreating(ModelBuilder builder) 
     { 

     } 
    } 
}

這是我startup.cs

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Threading.Tasks; 
using Microsoft.AspNetCore.Builder; 
using Microsoft.AspNetCore.Hosting; 
using Microsoft.AspNetCore.Identity.EntityFrameworkCore; 
using Microsoft.EntityFrameworkCore; 
using Microsoft.Extensions.Configuration; 
using Microsoft.Extensions.DependencyInjection; 
using Microsoft.Extensions.Logging; 
using Identitytest.Data; 
using Identitytest.Models; 
using Identitytest.Services; 

namespace Identitytest 
{ 
    public class Startup 
    { 
     public Startup(IHostingEnvironment env) 
     { 
      var builder = new ConfigurationBuilder() 
       .SetBasePath(env.ContentRootPath) 
       .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true) 
       .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true); 

      if (env.IsDevelopment()) 
      { 
       // For more details on using the user secret store see http://go.microsoft.com/fwlink/?LinkID=532709 
       builder.AddUserSecrets(); 

       // This will push telemetry data through Application Insights pipeline faster, allowing you to view results immediately. 
       builder.AddApplicationInsightsSettings(developerMode: true); 
      } 

      builder.AddEnvironmentVariables(); 
      Configuration = builder.Build(); 
     } 

     public IConfigurationRoot Configuration { get; } 

     // This method gets called by the runtime. Use this method to add services to the container. 
     public void ConfigureServices(IServiceCollection services) 
     { 
      // Add framework services. 
      services.AddApplicationInsightsTelemetry(Configuration); 

      services.AddDbContext<ApplicationDbContext>(options => 
       options.UseNpgsql(Configuration.GetConnectionString("DefaultConnection"))); 

      services.AddIdentity<ApplicationUser, IdentityRole<int>>() 
       .AddEntityFrameworkStores<ApplicationDbContext,int>() 
       .AddDefaultTokenProviders(); 

      services.AddMvc(); 

      // Add application services. 
      services.AddTransient<IEmailSender, AuthMessageSender>(); 
      services.AddTransient<ISmsSender, AuthMessageSender>(); 
     } 

     // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. 
     public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) 
     { 
      loggerFactory.AddConsole(Configuration.GetSection("Logging")); 
      loggerFactory.AddDebug(); 

      app.UseApplicationInsightsRequestTelemetry(); 

      if (env.IsDevelopment()) 
      { 
       app.UseDeveloperExceptionPage(); 
       app.UseDatabaseErrorPage(); 
       app.UseBrowserLink(); 
      } 
      else 
      { 
       app.UseExceptionHandler("/Home/Error"); 
      } 

      app.UseApplicationInsightsExceptionTelemetry(); 

      app.UseStaticFiles(); 
      app.UseIdentity(); 
      app.UseIdentity(); 

      // Add external authentication middleware below. To configure them please see http://go.microsoft.com/fwlink/?LinkID=532715 

      app.UseMvc(routes => 
      { 
       routes.MapRoute(
        name: "default", 
        template: "{controller=Home}/{action=Index}/{id?}"); 
      }); 
     } 
    } 
}

這是我的Program.cs

using System; 
using System.Collections.Generic; 
using System.IO; 
using System.Linq; 
using System.Threading.Tasks; 
using Microsoft.AspNetCore.Hosting; 

namespace Identitytest 
{ 
    public class Program 
    { 
     public static void Main(string[] args) 
     { 
      var host = new WebHostBuilder() 
       .UseKestrel() 
       .UseContentRoot(Directory.GetCurrentDirectory()) 
       .UseIISIntegration() 
       .UseStartup<Startup>() 
       .Build(); 

      host.Run(); 
     } 
    } 
}

現在，當我試圖數據庫更新我有這樣的錯誤

PM> Update-Database 
System.InvalidOperationException: The entity type 'IdentityUserLogin<int>' requires a primary key to be defined. 
    at Microsoft.EntityFrameworkCore.Internal.ModelValidator.ShowError(String message) 
    at Microsoft.EntityFrameworkCore.Internal.ModelValidator.Validate(IModel model) 
    at Microsoft.EntityFrameworkCore.Internal.RelationalModelValidator.Validate(IModel model) 
    at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator) 
    at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory) 
    at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel() 
    at Microsoft.EntityFrameworkCore.Internal.LazyRef`1.get_Value() 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.<>c__DisplayClass16_0.<RealizeService>b__0(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) 
    at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServiceCollectionExtensions.<>c.<AddEntityFramework>b__0_13(IServiceProvider p) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.<>c__DisplayClass16_0.<RealizeService>b__0(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) 
    at Microsoft.EntityFrameworkCore.Infrastructure.RelationalServiceCollectionExtensions.<>c.<AddRelational>b__0_8(IServiceProvider p) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.<>c__DisplayClass16_0.<RealizeService>b__0(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitTransient(TransientCallSite transientCallSite, ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.<>c__DisplayClass16_0.<RealizeService>b__0(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) 
    at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String contextType) 
    at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_1.<.ctor>b__0() 
    at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action) 
The entity type 'IdentityUserLogin<int>' requires a primary key to be defined.

我不明白我能爲這個問題做些什麼？我需要將我的主鍵更改爲INT，我已經在medium.com上完成了這個人的所有工作，但是我的代碼無效。

來源

2017-01-31 tornikegomareli

從你可能已經正確迄今所做的一切它的外觀，但你沒有提到你走進ApplicationContext.cs文件，並更改了簽名：

public class ApplicationDbContext : 
       IdentityDbContext<ApplicationUser, IdentityRole<int>, int>

然後，你將需要進入ApplicationUser.cs文件，更改類簽名：

public class ApplicationUser : IdentityUser<int> 
{ 
}

我已經得到了ASP.Net核心身份以這種方式工作，我用這個作爲指導：https://medium.com/@goodealsnow/asp-net-core-identity-3-0-6018fc151b4#.4qsikvln3

不要擔心它是基於SQL Server的，您已經將您的提供程序更改爲Npgsql並將選項設置爲UseNpgsql，這就是您應該做的所有事情。

讓我知道這是否有幫助。

來源

2017-03-21 15:06:16

.NETCORE標識主鍵

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