我有一个已经有角色表的现有数据库，我正在尝试让Identity使用表中的现有角色，但我一直收到此错误。
实体类型'ApplicationRole'和'Role'不能共享表 '角色'，因为它们不在同一类型层次结构中或没有 与匹配的主键有效的一对一外键关系 他们之间。
我想要实现的表映射是
由于数据库正被其他应用程序使用，我无法使用代码优先。所以我必须将我的脚本更改发送给DBA。
**现有的SQL表**
/* Object: Table [dbo].[Role] */
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Role](
[ID] [int] IDENTITY(1,1) NOT NULL,
[Name] [varchar](50) NOT NULL,
[Description] [varchar](100) NOT NULL CONSTRAINT [DF_Role_Description] DEFAULT (''),
CONSTRAINT [PK_Role] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/* Object: Table [dbo].[RoleUser] */
CREATE TABLE [dbo].[RoleUser](
[UserID] [int] NOT NULL,
[RoleID] [int] NOT NULL,
CONSTRAINT [PK_AppUserRole] 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, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
GO
/* Object: Table [dbo].[User] */
CREATE TABLE [dbo].[User](
[ID] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL,
[UserName] [dbo].[shortString] NOT NULL CONSTRAINT [DF_User_UserName] DEFAULT (''),
[FirstName] [dbo].[shortString] NULL CONSTRAINT [DF_User_FirstName] DEFAULT (''),
[LastName] [dbo].[shortString] NULL CONSTRAINT [DF_User_LastName] DEFAULT (''),
[Email] [dbo].[longString] NULL CONSTRAINT [DF_User_Email] DEFAULT (''),
[Pager] [dbo].[smallString] NULL CONSTRAINT [DF_User_Pager] DEFAULT (''),
[IsActive] [bit] NOT NULL CONSTRAINT [DF_User_IsActive] DEFAULT ((1)),
[LastPasswordChange] [datetime] NULL,
[AccountLockedDate] [datetime] NULL,
[AccountLockedByComputerName] [dbo].[shortString] NULL,
[AccountLockedByUserName] [dbo].[shortString] NULL,
[LastActive] [datetime] NULL,
[PasswordHash] [nvarchar](max) NULL,
[SecurityStamp] [nvarchar](max) NULL,
[Discriminator] [nvarchar](max) NULL,
[EmailConfirmed] [bit] NULL,
[PhoneNumber] [nvarchar](50) NULL,
[PhoneNumberConfirmed] [bit] NULL,
[TwoFactorEnabled] [bit] NULL,
[LockoutEndDateUtc] [datetime] NULL,
[LockoutEnabled] [bit] NULL,
[AccessFailedCount] [int] NULL,
CONSTRAINT [PK_AppUser] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
数据库语境
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
// Asp.net Identity
modelBuilder.Entity<ApplicationUser>().ToTable("User");
modelBuilder.Entity<ApplicationRole>().ToTable("Role");
modelBuilder.Entity<ApplicationUserClaim>().ToTable("UserClaims");
modelBuilder.Entity<ApplicationUserLogin>().ToTable("UserLogins");
modelBuilder.Entity<ApplicationUserRole>().ToTable("RoleUser");
}
IDENTITY CLASSES
public class ApplicationUserLogin : IdentityUserLogin<int> { }
public class ApplicationUserClaim : IdentityUserClaim<int> { }
public class ApplicationUserRole : IdentityUserRole<int> { }
public class ApplicationRole : IdentityRole<int, ApplicationUserRole>, IRole<int>
{
public string Description { get; set; }
public ApplicationRole() : base() { }
public ApplicationRole(string name)
: this()
{
this.Name = name;
}
public ApplicationRole(string name, string description)
: this(name)
{
this.Description = description;
}
}
public class ApplicationUser : IdentityUser<int, ApplicationUserLogin, ApplicationUserRole, ApplicationUserClaim>, IUser<int>
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string Password { get; set; }
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser, int> manager)
{
var userIdentity = await manager
.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
return userIdentity;
}
}
尝试创建FK / PK关系，但没有运气。
答案 0 :(得分：0)
您需要告诉EF和Identity有关Role和UserRole之间的关系。
尝试添加以下内容：
public class ApplicationUserRole : IdentityUserRole<int>
{
public ApplicationUserRole()
: base()
{ }
//this is important
public virtual ApplicationRole Role { get; set; }
}
在OnModelCreating添加此行以设置关系：
modelBuilder.Entity<ApplicationUserRole>().HasRequired(ur => ur.Role).WithMany().HasForeignKey(ur => ur.RoleID);
此外，如果上述方法无法解决问题，请发布您的DbContext代码。
答案 1 :(得分：0)
如果我创建一个新的ASP.NET MVC应用程序并更改您已指示的标识内容并创建一个仅包含您已指定的表的数据库，我尝试登录然后出现错误< / p>
列名称无效＆＃39;密码＆＃39;。
这是有道理的，因为没有密码＆＃39;表格定义中的字段，但该字段在您的实体中定义。
然后我改变了OnModelCreating方法：
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
// Asp.net Identity
modelBuilder.Entity<ApplicationUser>().ToTable("User");
modelBuilder.Entity<ApplicationRole>().ToTable("Role");
modelBuilder.Entity<ApplicationUserClaim>().ToTable("UserClaims");
modelBuilder.Entity<ApplicationUserLogin>().ToTable("UserLogins");
modelBuilder.Entity<ApplicationUserRole>().ToTable("RoleUser");
}
为：
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
// Asp.net Identity
modelBuilder.Entity<ApplicationUser>().ToTable("User");
modelBuilder.Entity<ApplicationRole>().ToTable("Role");
modelBuilder.Entity<ApplicationUserClaim>().ToTable("Role");
modelBuilder.Entity<ApplicationUserLogin>().ToTable("UserLogins");
modelBuilder.Entity<ApplicationUserRole>().ToTable("RoleUser");
}
然后我收到错误：
实体类型＆＃39; ApplicationUserClaim＆＃39;和ApplicationRole＆＃39;无法共享表格角色＆＃39;因为它们不在同一类型层次结构中，或者没有有效的一对一外键关系，并且它们之间具有匹配的主键。
请注意我的错误如何抱怨表Role，而您的错误是抱怨表格Roles
所以，考虑到所有这些，我有一些观察，建议和要求：