在這種情況下，我有2個實體，例如Contract，Media。public class Media : Entity{ public string Name {get; set;} public bool Enabled *//other properties can be ignored..*}public class Contract : Entity{ public string Code {get; set;} *//other properties can be ignored..*}合同有許多媒體，看來它們是多對多的。但??！首先在EF代碼，我需要在ContractMedia表（EF自動生成）中再添加3個字段。例如StartDate，EndDate和Price。無法將其添加到媒體實體中。在這種情況下如何映射？
2 回答
楊__羊羊
TA貢獻1943條經(jīng)驗 獲得超7個贊
無需使用Fluent API，即可添加到@Tomas答案。
public class Media // One entity table
{
public int Id { get; set; }
public string Name { get; set; }
public virtual ICollection<ContractMedia> ContractMedias { get; set; }
}
public class Contract // Second entity table
{
public int Id { get; set; }
public string Code { get; set }
public virtual ICollection<ContractMedia> ContractMedias { get; set; }
}
public class ContractMedia // Association table implemented as entity
{
[Key]
[Column(Order = 0)]
[ForeignKey("Media")]
public int MediaId { get; set; }
[Key]
[Column(Order = 1)]
[ForeignKey("Contract")]
public int ContractId { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public double Price { get; set; }
public virtual Media Media { get; set; }
public virtual Contract Contract { get; set; }
}
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