我有 2 个实体需要映射在一起。由于它们都是数据库视图,因此在技术上都不是主键。
[Table("Name")]
public class MemberInfo
{
[Key]
[Column("id")]
public string MemberId { get; set; }
[Column("first_name")]
public string FirstName { get; set; }
[Column("last_name")]
public string LastName { get; set; }
public string Designation { get; set; }
[Column("full_name")]
public string FullName { get; set; }
}
public class ChangeLog
{
[Column("ID")]
public int ID { get; set; }
[Column("asset_id")]
public virtual Asset AssetID { get; set; }
[Column("member_id")]
public int MemberID { get; set; }
public virtual MemberInfo MemberInfo { get; set; }
[Column("comment")]
public string Comment { get; set; }
[Column("createdDT")]
public DateTime CreatedDT { get; set; }
}
如果我尝试从 ChangeLog 访问 MemberInfo,我会收到一条错误消息:
A relationship multiplicity constraint violation occurred: An EntityReference can have no more than one related object, but the query returned more than one related object. This is a non-recoverable error.
MemberInfo 的 MemberID 字段是唯一的。我需要能够通过 MemberInfo 属性从 ChangeLog 访问 MemberInfo 属性。