3
我想開發一個ASP.NET MVC 4應用程序,玩家可以根據他們的攻擊,防禦和協助技能進行評分。攻擊,防守和助攻是引用相同查找表的玩家表上的外鍵 - 評級。ASP.NET MVC 4引用單個父實體的多個外鍵
我有以下父實體:
public class Rating
{
public int Id { get; set; }
public string Name { get; set; }
public virtual ICollection<Player> Players { get; set; }
}
和子實體:
public class Player
{
public int Id { get; set; }
public string Name { get; set; }
public int OffenceRatingId { get; set; }
[ForeignKey("OffenceRatingId")]
public virtual Rating OffenceRating { get; set; }
public int DefenceRatingId { get; set; }
[ForeignKey("DefenceRatingId")]
public virtual Rating DefenceRating { get; set; }
public int AssistRatingId { get; set; }
[ForeignKey("AssistRatingId")]
public virtual Rating AssistRating { get; set; }
}
建築和腳手架都很好,但是當我運行應用程序,我得到以下錯誤:
Introducing FOREIGN KEY constraint 'FK_dbo.Players_dbo.Ratings_DefenceRatingId' on table 'Players' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
我是新來的MVC,不知道我在這裏失蹤。任何幫助,將不勝感激。謝謝。
謝謝邁克。得到它的工作。 – corix010