如何在ASP.NET Core中添加多个身份和多个角色 [英] How to add multiple identity and multiple role in asp.net core

问题描述

我是asp.net核心的新手.因此，这可能不是一个好问题.

I am new to asp.net core. So this might not be a good question.

我有3个班级: Admin ， Doctor ， Patient .

我希望所有这些用户都可以登录并查看其仪表板.它们都将具有不同的访问级别.

I want all those users to be able to login and see their dashboard. All of them will have different level of access.

所以我像这样从 IdenetityUser 派生了这些类:

So I derived these classes from IdenetityUser like this:

public class Admin : IdentityUser
{
}

public class Doctor : IdentityUser
{
    public const int MaxAppointPerDay = 28;

    public Gender Gender { get; set; }
}

public class Patient : IdentityUser
{
    public DateTime DateOfBirth { get; set; }
    public Gender Gender { get; set; }
}

在这之后我只是被困住了.

I am just stuck after this.

当我尝试通过 AddIdentity< TUser，TRole>()方法添加多个身份时，它给了我错误.

When I tried to add multiple Identitiy by the method AddIdentity<TUser, TRole>(), it gave me error.

接下来我要做什么?

Internet上的大多数示例都涉及一个 IdentityUser 和多个 IdentityRole .但是由于用户模型各不相同，所以我不能那样做.

Most of the examples in the internet involves one IdentityUser and multiple IdentityRole. But since the user models are all different, I couldn't go that way.

谢谢.

推荐答案

您不能反复使用 AddIdentity 添加身份.

You cannot repeatedly use AddIdentity to add an identity.

ASP.NET Core提供了一个内置方法: AddIdentityCore< TUser> .

ASP.NET Core provides a built-in method:AddIdentityCore<TUser>.

您可以像这样使用它: services.AddIdentityCore< Admin>();

You can use it like this: services.AddIdentityCore<Admin>();

在银球的答案中，对于将来的读者来说，如果您使用此 AddIdentityCore 方法，则 AspNetUsers 表将合并每个 IdentityUser 的所有属性代码>.这是一个示例:

Adding to Yinqiu's answer, for the future readers, if you use this AddIdentityCore method, the AspNetUsers table will merge all the properties of each IdentityUser. Here is an example:

让 Teacher 和 Student 是两个 IdentityUser ，它们都具有至少一个不同的属性，例如:

Let Teacher and Student are two IdentityUser and both of them have at least one distinct properties, like this:

public class Teacher : IdentityUser
{
    public string Subject { get; set; }
}

public class Student : IdentityUser
{
    public int Grade { get; set; }
}

然后我将它们的两个身份添加到 startup.cs 中，如下所示:

Then I add both of their Identity in the startup.cs like this:

services.AddIdentityCore<Teacher>().AddEntityFrameworkStores<AppDbContext>();
services.AddIdentityCore<Student>().AddEntityFrameworkStores<AppDbContext>();

AspNetUsers 表将同时包含 Subject 属性和 Grade 属性.这是迁移类的证明:

The AspNetUsers table will include both the Subject property and the Grade property. Here is the proof from migration class:

migrationBuilder.CreateTable(
    name: "AspNetUsers",
    columns: table => new
    {
        Id = table.Column<string>(nullable: false),
        UserName = table.Column<string>(maxLength: 256, nullable: true),
        NormalizedUserName = table.Column<string>(maxLength: 256, nullable: true),
        Email = table.Column<string>(maxLength: 256, nullable: true),
        NormalizedEmail = table.Column<string>(maxLength: 256, nullable: true),
        EmailConfirmed = table.Column<bool>(nullable: false),
        PasswordHash = table.Column<string>(nullable: true),
        SecurityStamp = table.Column<string>(nullable: true),
        ConcurrencyStamp = table.Column<string>(nullable: true),
        PhoneNumber = table.Column<string>(nullable: true),
        PhoneNumberConfirmed = table.Column<bool>(nullable: false),
        TwoFactorEnabled = table.Column<bool>(nullable: false),
        LockoutEnd = table.Column<DateTimeOffset>(nullable: true),
        LockoutEnabled = table.Column<bool>(nullable: false),
        AccessFailedCount = table.Column<int>(nullable: false),
        Discriminator = table.Column<string>(nullable: false),
        Grade = table.Column<int>(nullable: true),
        Subject = table.Column<string>(nullable: true)
    },
    constraints: table =>
    {
        table.PrimaryKey("PK_AspNetUsers", x => x.Id);
    });

请注意，最后两个属性是 Grade 和 Subject .

Notice the last two properties are Grade and Subject.

这类似于为所有 IdentitiyUser 使用基类，该基类将从 IdentityUser 派生并包含所有属性的组合，然后仅使用添加该基类> AddIdentity< TUser，TRole> 方法.

It's similar to using a base class for all the IdentitiyUser which will derive from IdentityUser and include combination of all propeties and then just adding that one base class using AddIdentity<TUser, TRole> method.

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