如果已经回答,请原谅我,我真的找不到我需要做的解释/示例。
我有两个模型,Dealer
模型和Location
模型。创建Location
后,必须为Dealer
创建Dealer
。 ShipToLocation
有BillToLocation
和Locations
与之关联,但Dealer
Dealer
Locations
也可能为Dealer
创建public class Dealer : BaseEntity
{
[Key]
public int DealerId { get; set; }
public string DealerName { get; set; }
public virtual Location ShipToLocation { get; set; }
public virtual Location BillToLocation { get; set; }
}
public class Location : BaseEntity
{
[Key]
public int LocationId { get; set; }
public string LocationStateProvince { get; set; }
public string LocationCountry { get; set; }
//public int DealerId { get; set; }
//[ForeignKey("DealerId")]
public virtual Dealer Dealer { get; set; }
}
目前与...有关。我需要设置模型,以便我可以为The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_dbo.Dealers_dbo.Locations_ShipToLocation_LocationId". The conflict occurred in database "CoinWeb", table "dbo.Locations", column 'LocationId'.
创建{{1}}的下拉列表,用户可以选择将其添加为“当前”ShipTo或BillTo位置。我希望我能正确解释......
以下是我的模型设置,但我收到了外键约束错误:
{{1}}
我运行数据库迁移时遇到的当前错误是:
{{1}}
提前感谢您的帮助!!
答案 0 :(得分:0)
我认为以下陈述适用于您的案例
客户有许多位置和位置可以被许多客户共享。所以我认为关系是M --- M所以创建一个名为CustomerLocations的新模型public class CustomerLocations: BaseEntity
{
[Key]
public int ID { get; set; }
public Customer Customer {get;set;}
public virtual LocationType LocationType { get; set; }
public virtual Location Location { get; set; }
}
public enum LocationType{
Billing=1,
Shipping=2
}