我有以下结构：
public class EntityBase {
public Guid? Id { get;set; }
public Guid? TheRealId {get;set;}
}
public class SomeInheritEntity : EntityBase {
string SomeOtherProp {get;set;}
}
EFCORE坚持认为， someneriteentity 中的真实ID是 ID 。由于我这是一个适配器，而且我无法可靠地依靠ID才能真正唯一，因此我添加了另一个我要确保是唯一的ID。
我如何让efcore使用 therealid 作为所有派生类型的ID
entitybase ？
编辑：
我想避免分配所有 .haskey 之类的模式。也许有一个我可以使用的基础装饰器？
我尝试将 [键] 添加到基类 therealId ，但是EFCORE仍坚持使用 id> id 作为键，影响2行，旨在影响1种错误。
这起作用：
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<SomeInheritEntity>().HasKey("TheRealId");
}
但是我将为继承实体宣布这一点
I have the following structure:
public class EntityBase {
public Guid? Id { get;set; }
public Guid? TheRealId {get;set;}
}
public class SomeInheritEntity : EntityBase {
string SomeOtherProp {get;set;}
}
EFCore insists that the real ID is Id in the SomeInheriteEntity. Since I this is an adapter, and I can't reliably count on Id to be truly unique, I've added another Id that I am going to ensure is unique.
How do I get EFcore to use TheRealId as the Id for all derived types of
EntityBase?
Edit:
I would like to avoid the pattern of assigning all of the .HasKey or the like in the Model Builder. Maybe there is a decorator for the base class I can use?
I attempted to add [Key] to the base class TheRealId, but efcore still insisted on using id as the key when doing updates and checking for affecting 2 rows, meant to affect 1 type of errors.
This works:
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<SomeInheritEntity>().HasKey("TheRealId");
}
But i would be declaring this for tons of inherit entities
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评论（1）
您可以配置
entityBase，然后每个派生的类型配置为entitybase作为基本类型。我建议将HASKEY MEDAGE超载与表达式使用，而不是字符串。这应该解决INT/GUID问题。
You can configure
EntityBaseand then every derived type configure to setEntityBaseas base type.I would suggest using HasKey method overload with expression, instead of string. That should solve int/Guid issue.
EntityTypeBuilder.HasBaseType Method
EntityTypeBuilder.HasKey Method
EF Core Inheritance