[英]EF Core Code First, 2 Many to one relations of same object
我有 2 个具有以下结构的类,Person 与 SchoolClass 有 2 个多一关系:
public class Person
{
public int Id { get; set; }
public List<SchoolClass> SchoolClasses { get; set; }
public List<SchoolClass> OldSchoolClasses { get; set; }
}
public class SchoolClass
{
public int Id { get; set; }
public string Name { get; set; }
}
我可以添加 ghostProps 但不能更改类。
当我为 EFCore 进行迁移时,它会将 2 个不同的人员 ID 添加到我想避免的 SchoolClass 表中。
我想生成 2 个多对多表:
Fluent API 可以做到这一点吗?
也许您应该尝试 inheritance:
public class SchoolClass // this could be abstract
{
public int Id { get; set; }
public string Name { get; set; }
}
public class NewSchoolClass : SchoolClass
{
}
public class OldSchoolClass : SchoolClass
{
}
public class Person
{
public int Id { get; set; }
public IList<NewSchoolClass> NewSchoolClasses { get; set; }
public IList<OldSchoolClass> OldSchoolClasses { get; set; }
}
在 DbContext 中:
-DbSet<SchoolClass> SchoolClasses { get; set; }
+DbSet<OldSchoolClass> OldSchoolClasses { get; set; }
+DbSet<NewSchoolClass> NewSchoolClasses { get; set; }
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