扩展 Identity 2 中 IdentityUserRole 的主键

Question

是否可以通过附加列扩展 ApplicationUserRole 的主键？

默认有两列定义为主键：UserId和RoleId

这里是默认实现

public partial class ApplicationUserRole : IdentityUserRole<string>
{
    public virtual ApplicationUser User { get; set; }
    public virtual ApplicationRole Role { get; set; }
}

public class IdentityUserRole<TKey>
{
    public IdentityUserRole();

    // Summary:
    //     RoleId for the role
    public virtual TKey RoleId { get; set; }
    //
    // Summary:
    //     UserId for the user that is in the role
    public virtual TKey UserId { get; set; }
}

数据库中的 table 看起来像

CREATE TABLE [dbo].[AspNetUserRoles](
    [UserId] [nvarchar](128) NOT NULL,
    [RoleId] [nvarchar](128) NOT NULL,
 CONSTRAINT [PK_dbo.AspNetUserRoles] PRIMARY KEY CLUSTERED 
(
    [UserId] ASC,
    [RoleId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

但我需要更多！ :) 我的意思是我希望我的模型看起来像

public partial class ApplicationUserRole : IdentityUserRole<string>
{

    public Guid ServiceId { get; set; }

    public virtual ApplicationUser User { get; set; }
    public virtual ApplicationRole Role { get; set; }
    public virtual Service Service { get; set; }

}

我不明白如何用数据注释或流利的方式正确地做到这一点api。我都试过了，但都没有成功。迁移引擎似乎忽略了该模型的任何主键更改。至少当我添加注释或流利的 api 方法时，迁移引擎会生成空的迁移脚本。

我刚刚添加了 serviceId 属性并且我的 table 现在看起来像

CREATE TABLE [dbo].[AspNetUserRoles](
    [UserId] [nvarchar](128) NOT NULL,
    [RoleId] [nvarchar](128) NOT NULL,
    [ServiceId] [uniqueidentifier] NOT NULL,
 CONSTRAINT [PK_dbo.AspNetUserRoles] PRIMARY KEY CLUSTERED 
(
    [UserId] ASC,
    [RoleId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

当我尝试通过注释或流利应用关键更改时 api 迁移脚本看起来像

public partial class rolesmigrate02 : DbMigration
{
    public override void Up()
    {
    }

    public override void Down()
    {
    }
}

流利api:

modelBuilder.Entity<ApplicationUserRole>().HasKey(hk => new { hk.UserId, hk.RoleId, hk.ServiceId});

注释

public partial class ApplicationUserRole : IdentityUserRole<string>
{
    [Key, Column(Order = 0)]
    public override string UserId { get; set; }
    [Key, Column(Order = 1)]
    public override string RoleId { get; set; }
    [Key, Column(Order = 2)]
    public Guid ServiceId { get; set; }

    public virtual ApplicationUser User { get; set; }
    public virtual ApplicationRole Role { get; set; }
    public virtual Service Service { get; set; }
}

我可以在数据库中手动进行更改，但我怀疑
我的错误在哪里？为什么我不能通过代码优先迁移来扩展这个模型？

Answer 1

花了一些时间后我发现了这个postSam about identity 2 on Whosebug

关键在base.OnModelCreating(modelBuilder)

如果我们想重新应用或修改预定义的身份 2 映射，我们应该在 base.OnModelCreating.

之后进行

这么流利api应该是

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        // usualy i put this line to the end of this method but it should be before
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<ApplicationUserRole>().HasKey(hk => new { hk.UserId, hk.RoleId, hk.ServiceId});
    }

扩展 Identity 2 中 IdentityUserRole 的主键

extending PrimaryKey of IdentityUserRole in Identity 2

c#

entity-framework-migrations

asp.net-identity-2