如何使用Identity ASP.NET Core通过代码优先迁移为用户和角色播种 [英] How to Seed Users and Roles with Code First Migration using Identity ASP.NET Core

问题描述

我创建了一个新的clean asp.net 5项目(rc1-final).使用身份验证，我只有带有以下代码的ApplicationDbContext.cs:

I have created a new clean asp.net 5 project (rc1-final). Using Identity Authentication I just have the ApplicationDbContext.cs with the following code:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    protected override void OnModelCreating(ModelBuilder builder)
    {
        // On event model creating
        base.OnModelCreating(builder);
    }
}

请注意ApplicationDbContext使用IdentityDbContext而不是DbContext.

Please note ApplicationDbContext use IdentityDbContext and not DbContext.

有任何IdentityConfig.cs.如果不存在经典的受保护的覆盖无效种子，该在哪里创建角色和用户?

There is any IdentityConfig.cs. Where i need to put the classic protected override void Seed to create role and user if it does not exist?

推荐答案

我这样做的方法是在模型名称空间中创建一个类.

My way of doing this is to create a class in models namespace.

public class SampleData
{
    public static void Initialize(IServiceProvider serviceProvider)
    {
        var context = serviceProvider.GetService<ApplicationDbContext>();

        string[] roles = new string[] { "Owner", "Administrator", "Manager", "Editor", "Buyer", "Business", "Seller", "Subscriber" };

        foreach (string role in roles)
        {
            var roleStore = new RoleStore<IdentityRole>(context);

            if (!context.Roles.Any(r => r.Name == role))
            {
                roleStore.CreateAsync(new IdentityRole(role));
            }
        }


        var user = new ApplicationUser
        {
            FirstName = "XXXX",
            LastName = "XXXX",
            Email = "[e-mail]",
            NormalizedEmail = "[e-mail]",
            UserName = "Owner",
            NormalizedUserName = "OWNER",
            PhoneNumber = "[phone]",
            EmailConfirmed = true,
            PhoneNumberConfirmed = true,
            SecurityStamp = Guid.NewGuid().ToString("D")
        };


        if (!context.Users.Any(u => u.UserName == user.UserName))
        {
            var password = new PasswordHasher<ApplicationUser>();
            var hashed = password.HashPassword(user,"secret");
            user.PasswordHash = hashed;

            var userStore = new UserStore<ApplicationUser>(context);
            var result = userStore.CreateAsync(user);

        }

        AssignRoles(serviceProvider, user.Email, roles);

        context.SaveChangesAsync();
    }

    public static async Task<IdentityResult> AssignRoles(IServiceProvider services, string email, string[] roles)
    {
        UserManager<ApplicationUser> _userManager = services.GetService<UserManager<ApplicationUser>>();
        ApplicationUser user = await _userManager.FindByEmailAsync(email);
        var result = await _userManager.AddToRolesAsync(user, roles);

        return result;
    }

}

在启动时运行此代码.路由配置后，在配置方法末尾的Startup.cs中，添加以下代码，如Stafford Williams之前所述.

To run this code on startup. In Startup.cs at end of configure method just after route configuration add following code as Stafford Williams said before.

SampleData.Initialize(app.ApplicationServices);

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