Entity Framework一对一流畅Api无法删除数据
Entity Framework One to One Fluent Api Can not Delete Data
那就是模型中的礼物class。那应该是父 class。
public class Gift
{
public int GiftId { get; set; }
public string Title { get; set; }
public string Brand { get; set; }
public double Price { get; set; }
public bool Chosen { get; set; }
public virtual Shop Shop { get; set; }
public virtual Person Person { get; set; }
}
也就是店铺class,这两个是一对一的关系。有礼必有店,有店必有礼
public class Shop
{
public int ShopId { get; set; }
public string Name { get; set; }
public string Street { get; set; }
public string Number { get; set; }
public string Postcode { get; set; }
public string District { get; set; }
public virtual Gift Gift { get; set; }
}
这是我模型中的第三个 class。这个class和礼物class是一对零的关系。如果没有选择礼物,则没有任何人。人也一样。
public class Person
{
public int Id { get; set; }
public string FirstName{ get; set; }
public string Surname{ get; set; }
public string EmailAdress { get; set; }
public virtual Gift Gift { get; set; }
}
这是我改过很多次的流利api。
modelBuilder.Entity<Gift>()
.HasOptional(x => x.Person);
modelBuilder.Entity<Person>()
.HasRequired(x => x.Gift);
modelBuilder.Entity<Gift>()
.HasRequired(x => x.Shop).WithOptional(x => x.Gift).Map(x => x.MapKey("ShopId"));
modelBuilder.Entity<Shop>()
.HasRequired(x => x.Gift).WithOptional(x => x.Shop).Map(x => x.MapKey("GiftId"));
我可以保存数据,但是当我想删除礼物时,我无法成功并且遇到问题。我该如何解决?已经谢谢了!
我已经修好了。 Here is the link
modelBuilder.Entity<Shop>()
.HasRequired(x => x.Gift)
.WithRequiredDependent();
modelBuilder.Entity<Gift>()
.HasRequired(x => x.Shop)
.WithRequiredPrincipal();
base.OnModelCreating(modelBuilder);
那就是模型中的礼物class。那应该是父 class。
public class Gift
{
public int GiftId { get; set; }
public string Title { get; set; }
public string Brand { get; set; }
public double Price { get; set; }
public bool Chosen { get; set; }
public virtual Shop Shop { get; set; }
public virtual Person Person { get; set; }
}
也就是店铺class,这两个是一对一的关系。有礼必有店,有店必有礼
public class Shop
{
public int ShopId { get; set; }
public string Name { get; set; }
public string Street { get; set; }
public string Number { get; set; }
public string Postcode { get; set; }
public string District { get; set; }
public virtual Gift Gift { get; set; }
}
这是我模型中的第三个 class。这个class和礼物class是一对零的关系。如果没有选择礼物,则没有任何人。人也一样。
public class Person
{
public int Id { get; set; }
public string FirstName{ get; set; }
public string Surname{ get; set; }
public string EmailAdress { get; set; }
public virtual Gift Gift { get; set; }
}
这是我改过很多次的流利api。
modelBuilder.Entity<Gift>()
.HasOptional(x => x.Person);
modelBuilder.Entity<Person>()
.HasRequired(x => x.Gift);
modelBuilder.Entity<Gift>()
.HasRequired(x => x.Shop).WithOptional(x => x.Gift).Map(x => x.MapKey("ShopId"));
modelBuilder.Entity<Shop>()
.HasRequired(x => x.Gift).WithOptional(x => x.Shop).Map(x => x.MapKey("GiftId"));
我可以保存数据,但是当我想删除礼物时,我无法成功并且遇到问题。我该如何解决?已经谢谢了!
我已经修好了。 Here is the link
modelBuilder.Entity<Shop>()
.HasRequired(x => x.Gift)
.WithRequiredDependent();
modelBuilder.Entity<Gift>()
.HasRequired(x => x.Shop)
.WithRequiredPrincipal();
base.OnModelCreating(modelBuilder);