Entity Framework 6 - 该类型已配置为实体类型。它不能重新配置为复杂类型

Question

我对一个实体做了一些小改动。我已经使外键不可为空并且是必需的。当我开始创建 Entity Framework 迁移时，我收到一个错误：

The type 'Payment' has already been configured as an entity type. It cannot be reconfigured as a complex type.

我不明白为什么会这样。我没有将任何 class 定义为复杂类型。我使用的是枚举，但它一直存在并且以前从未出现过问题并且在 EF6 下受支持。

项目本身仍然可以正常编译。

这是导致问题的付款 class。

public partial class Payment
{
    public int payment_ID { get; set; }
    public int order_ID { get; set; }
    public PaymentTypeEnum paymentType_ID { get; set; }
    public string cc_response_ReceiptNo { get; set; }
    public string cc_response_QSIResponseCode { get; set; }
    public string cc_response_QSIResponseDescription { get; set; }
    public string cc_response_TransactionNo { get; set; }
    public string cc_response_BatchNo { get; set; }
    public DateTime? cc_response_expected { get; set; }
    public bool? cc_response_checked { get; set; }
    public DateTime? paymentReceived { get; set; }
    public int? paymentAmountUnits { get; set; }
    public string paymentNotes { get; set; }
    public string cc_GatewayIdent { get; set; }
    public virtual Order Order { get; set; }
    public virtual PaymentType PaymentType { get; set; }
    public virtual ICollection<CreditNote> CreditNotes { get; set; }
}

映射信息

 public class tbl_paymentMap : EntityTypeConfiguration<Payment>
{
    public tbl_paymentMap()
    {
        // Primary Key
        this.HasKey(t => t.payment_ID);

        // Properties
        this.Property(t => t.cc_response_ReceiptNo)
            .HasMaxLength(12);

        this.Property(t => t.cc_response_QSIResponseCode)
            .HasMaxLength(2);

        this.Property(t => t.cc_response_QSIResponseDescription)
            .HasMaxLength(150);

        this.Property(t => t.cc_response_TransactionNo)
            .HasMaxLength(21);

        this.Property(t => t.cc_response_BatchNo)
            .HasMaxLength(21);

        this.Property(t => t.paymentNotes)
            .HasMaxLength(100);

        this.Property(t => t.cc_GatewayIdent)
            .HasMaxLength(50);

        // Table & Column Mappings
        this.ToTable("tbl_payment");
        this.Property(t => t.payment_ID).HasColumnName("payment_ID");
        this.Property(t => t.order_ID).HasColumnName("order_ID");
        this.Property(t => t.paymentType_ID).HasColumnName("paymentType_ID");
        this.Property(t => t.cc_response_ReceiptNo).HasColumnName("cc_response_ReceiptNo");
        this.Property(t => t.cc_response_QSIResponseCode).HasColumnName("cc_response_QSIResponseCode");
        this.Property(t => t.cc_response_QSIResponseDescription).HasColumnName("cc_response_QSIResponseDescription");
        this.Property(t => t.cc_response_TransactionNo).HasColumnName("cc_response_TransactionNo");
        this.Property(t => t.cc_response_BatchNo).HasColumnName("cc_response_BatchNo");
        this.Property(t => t.cc_response_expected).HasColumnName("cc_response_expected");
        this.Property(t => t.cc_response_checked).HasColumnName("cc_response_checked");
        this.Property(t => t.paymentReceived).HasColumnName("paymentReceived");
        this.Property(t => t.paymentAmountUnits).HasColumnName("paymentAmountUnits");
        this.Property(t => t.paymentNotes).HasColumnName("paymentNotes");
        this.Property(t => t.cc_GatewayIdent).HasColumnName("cc_GatewayIdent");

        // Relationships
        this.HasRequired(t => t.Order)
            .WithMany(t => t.Payments)
            .HasForeignKey(d => d.order_ID);
        this.HasRequired(t => t.PaymentType)
            .WithMany(t => t.Payments)
            .HasForeignKey(d => d.paymentType_ID);
   }
}

Answer 1

将以下内容添加到 OnModelCreating，我认为可以解决您的问题：

modelBuilder.Ignore<YourClassNameorEntityName>();

Answer 2

好的，结果证明这是我自己做的一件奇怪的事。在我的付款 class 旁边有一张 CreditNote class。您可以在我的原始问题中看到，一笔付款可能有很多信用票据。

除此之外，付款通知单和贷记通知单都分别引用了一个订单。

在执行一些标准化的同时，我从贷方通知单 class 中删除了订单 class 的 link。在修复随之而来的错误时，我对查找和替换有点着迷，无意中在信用票据映射中执行了它。

因此

    public tbl_creditnoteMap()
    {
       this.Property(t => t.order_ID).HasColumnName("order_ID");

成为

    public tbl_creditnoteMap()
    {
       this.Property(t => t.Payment.order_ID).HasColumnName("order_ID");

实际上它应该完全删除。这显然打破了幕后的事情。

Entity Framework 6 - 该类型已配置为实体类型。它不能重新配置为复杂类型

Entity Framework 6 - The type has already been configured as an entity type. It cannot be reconfigured as a complex type

c#

entity-framework

complextype