将 IdentityUserClaim 导航添加到 IdentityUser<int>

Question

我正在尝试将 IdentityUserClaim 导航添加到我的自定义 IdentityUser< int >，我尝试了很多方法但没有成功工作。

public class AppUser : IdentityUser<int>
{
    [ForeignKey("UserId")]
    public List<AppUserClaim> UserClaims { get; set; }
}

public class AppUserClaim : IdentityUserClaim<int>
{
}

public partial class ApplicationDbContext : IdentityDbContext<AppUser, AppRole, int, AppUserClaim, AppUserRole, AppUserLogin, AppRoleClaim, AppUserToken>
{
    //DBSets
}

如果我运行没有迁移的应用程序（我的意思是 ef 迁移），那么我得到以下错误：

Microsoft.Data.SqlClient.SqlException (0x80131904): Invalid column name 'AppUserId'.

SELECT [a].[Id], [a].[AppUserId], [a].[ClaimType], [a].[ClaimValue], [a].[UserId] FROM [AspNetUserClaims] AS [a] WHERE [a].[UserId] = @__user_Id_0

而且是正确的，AspNetUserClaims table.

中没有 AppUserId 列

当我尝试添加迁移时，它会添加一个新列，我不会！

protected override void Up(MigrationBuilder migrationBuilder)
{
    migrationBuilder.AddColumn<int>(
        name: "AppUserId",
        table: "AspNetUserClaims",
        type: "int",
        nullable: true);

    migrationBuilder.CreateIndex(
        name: "IX_AspNetUserClaims_AppUserId",
        table: "AspNetUserClaims",
        column: "AppUserId");

    migrationBuilder.AddForeignKey(
        name: "FK_AspNetUserClaims_AspNetUsers_AppUserId",
        table: "AspNetUserClaims",
        column: "AppUserId",
        principalTable: "AspNetUsers",
        principalColumn: "Id",
        onDelete: ReferentialAction.Restrict);
}

我怎么能告诉 ef core 我需要在现有 table 关系上导航？

Answer 1

好的，您已经继承了正确的基础 IdentityDbContext 和正确的泛型参数。

问题是基础 class 流畅地配置了没有导航属性的关系。由于fluent configuration的优先级高于data annotations，[ForeignKey]属性被忽略，navigation属性被映射到一个separate关系与自己的FK.

因此，当您添加导航属性时，您还需要覆盖 OnModelCreating 并在 调用基本实现后重新配置关系，例如

protected override void OnModelCreating(ModelBuilder builder) { base.OnModelCreating(builder); builder.Entity<AppUser>() .HasMany(e => e.UserClaims) .WithOne() .HasForeignKey(e => e.UserId); }

将 IdentityUserClaim 导航添加到 IdentityUser<int>

Add IdentityUserClaim Navigation to IdentityUser<int>

c#

identity

entity-framework-core

.net-5