错误CS1061"IdentityBuilder"不包含"AddEntityFrameworkStores"的定义 [英] Error CS1061 'IdentityBuilder' does not contain a definition for 'AddEntityFrameworkStores'

问题描述

我正在尝试将ASPNET Core 2.0中的主键更改为Guid或long.

I'm trying to change the primary key in ASPNET Core 2.0 to Guid or long.

我在这两个链接中都尝试了以下示例 Link1 和 Link2

I've tried the following examples in both these links Link1 and Link2

但是，在Startup类中，出现以下错误

However, in the Startup class I get the following error

 Error  CS1061  'IdentityBuilder' does not contain a definition for
 'AddEntityFrameworkStores' and no extension method 'AddEntityFrameworkStores' accepting 
 a first argument of type 'IdentityBuilder' could be found (are you missing a using 
 directive or an assembly reference?)

我认为原因是示例基于较旧的ASPNET Core 1.0.如何在ASPNET Core 2.0中更改身份的主键?

I think the reason is the examples are based on the older ASPNET Core 1.0. How can I change the primary key for Identity in ASPNET Core 2.0?

推荐答案

在此链接中的注释中可以找到有关如何执行此操作的信誉 https://docs.microsoft.com/zh-cn/aspnet/core/migration/1x-to-2x/identity -2x

Credit on how to do this can be found in the comments in this link https://docs.microsoft.com/en-us/aspnet/core/migration/1x-to-2x/identity-2x

Change ApplicationUser to inherit from IdentityUser<int>

Create a new class ApplicationRole that inherits from IdentityRole<int>

Change ApplicationDbContext to inherit from IdentityDbContext<ApplicationUser, ApplicationRole, int>

Change startup.cs for services.AddIdentity to use ApplicationRole

Change UrlHelperExtensions methods to take a generic <T> with T userId in the signature

Change ManageController's LinkLoginCallback's call to await _signInManager.GetExternalLoginInfoAsync(user.Id.ToString())

Add the following line to the ApplicationDbContext OnModelCreating method (after the base.OnModelCreating call)

builder.Entity<ApplicationUser>().Property(p => p.Id).UseSqlServerIdentityColumn();

如果使用Guid，则将builder.Entity<ApplicationUser>().Property(p => p.Id).UseSqlServerIdentityColumn();替换为builder.Entity<ApplicationUser>().Property(p => p.Id).ValueGeneratedOnAdd();

If using Guid then replace builder.Entity<ApplicationUser>().Property(p => p.Id).UseSqlServerIdentityColumn(); with builder.Entity<ApplicationUser>().Property(p => p.Id).ValueGeneratedOnAdd();

所有更改都在下面

public class ApplicationUser : IdentityUser<Guid>
{
}

public class ApplicationRole : IdentityRole<Guid>
{

}

public class ApplicationDbContext : IdentityDbContext<ApplicationUser, ApplicationRole, Guid>
{
    Public ApplicationDbContext(DbContextOptions < ApplicationDbContext > Options): Base (Options)
    {
    }

    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);
        // Customize the ASP.NET Identity model and override the defaults if needed.
        // For example, you can rename the ASP.NET Identity table names and more.
        // Add your customizations after calling base.OnModelCreating(builder);

        // For Guid Primary Key
        builder.Entity<ApplicationUser>().Property(p => p.Id).ValueGeneratedOnAdd();

        // For int Primary Key
        //builder.Entity<ApplicationUser>().Property(p => p.Id).UseSqlServerIdentityColumn();
    }
}

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext<ApplicationDbContext>(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

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

    // Add application services.
    services.AddTransient<IEmailSender, EmailSender>();

    services.AddMvc();
}

public static class UrlHelperExtensions
{
    public static string EmailConfirmationLink<T>(this IUrlHelper urlHelper, T userId, string code, string scheme)
    {
        return urlHelper.Action(
            action: nameof(AccountController.ConfirmEmail),
            controller: "Account",
            values: new { userId, code },
            protocol: scheme);
    }

    public static string ResetPasswordCallbackLink<T>(this IUrlHelper urlHelper, T userId, string code, string scheme)
    {
        return urlHelper.Action(
            action: nameof(AccountController.ResetPassword),
            controller: "Account",
            values: new { userId, code },
            protocol: scheme);
    }
}

....
var info = await _signInManager.GetExternalLoginInfoAsync(user.Id.ToString());

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