.NETCore Identity Primärschlüssel

Question

Ich versuche AspNetCore Identity für unser Projekt zu verwenden, wir verwenden Postgresql Datenbank.

Ich bin Junior-Entwickler und heute meine Aufgabe, ist Identität Primärschlüssel INT zu ändern, habe ich recherchiert und fand diesen Artikel https://medium.com/@goodealsnow/asp-net-core-identity-3-0-6018fc151b4#.k602cypgb

aber es hilft mir nicht, so dass ich einige Fehler haben.

das ist mein 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) 
     { 

     } 
    } 
} 

Das ist mein startup.cs

ist

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?}"); 
      }); 
     } 
    } 
} 

Das ist mein 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(); 
     } 
    } 
} 

Nun ist, wenn ich versuche, Datenbankaktualisierung Ich habe einen Fehler wie diesen

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. 

Ich habe nicht verstanden, was kann ich für dieses Problem tun? Ich muss meinen Primärschlüssel zu INT ändern, ich habe alles getan, was dieser Typ auf medium.com tut, aber mein Code funktioniert nicht.

Answer 1

Von den Blicken von ihm alles richtig bisher getan haben, aber du hast nicht erwähnt, dass Sie in die ApplicationContext.cs Datei ging und änderte die Signatur:

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

Dann müssen Sie gehen in die ApplicationUser.cs Datei und ändern Sie die Klasse Signatur:

public class ApplicationUser : IdentityUser<int> 
{ 
} 

ich habe ASP.Net Core-Identität bekommen auf diese Weise zu arbeiten, habe ich dies als Leitfaden: https://medium.com/@goodealsnow/asp-net-core-identity-3-0-6018fc151b4#.4qsikvln3

Machen Sie sich keine Sorgen, dass es auf SQL Server basiert. Sie haben Ihren Provider bereits in Npgsql geändert und die Optionen auf UseNpgsql gesetzt. Das ist alles, was Sie tun müssen.

Lassen Sie mich wissen, ob dies hilft.