У меня возникла странная проблема с EF 4.1 Code First, когда, хотя я настроил объект для создания столбцов для его унаследованных свойств, он все равно присоединяется к таблице унаследованного типа.
Вот мои классы:
public class Human
{
public int Id { get; set; }
public string Name { get; set; }
}
public class SuperHuman : Human
{
public int Id { get; set; }
public string Powers { get; set; }
}
public class MarvelDbContext : DbContext
{
public DbSet<Human> Humans { get; set; }
public DbSet<SuperHuman> SuperHumans { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<SuperHuman>().Map(m => m.MapInheritedProperties());
}
}
Вот результирующий запрос:
SELECT
[Limit1].[C3] AS [C1],
[Limit1].[C1] AS [C2],
[Limit1].[C2] AS [C3],
[Limit1].[C4] AS [C4]
FROM ( SELECT TOP (1)
[UnionAll1].[Id] AS [C1],
[UnionAll1].[Name] AS [C2],
CASE WHEN ([UnionAll1].[C2] = 1) THEN '0X' ELSE '0X0X' END AS [C3],
CASE WHEN ([UnionAll1].[C2] = 1) THEN CAST(NULL AS varchar(1)) ELSE [UnionAll1].[C1] END AS [C4]
FROM (SELECT
[Extent1].[Id] AS [Id],
[Extent1].[Name] AS [Name],
CAST(NULL AS varchar(1)) AS [C1],
cast(1 as bit) AS [C2]
FROM [dbo].[Humen] AS [Extent1]
UNION ALL
SELECT
[Extent2].[Id] AS [Id],
[Extent2].[Name] AS [Name],
[Extent2].[Powers] AS [Powers],
cast(0 as bit) AS [C1]
FROM [dbo].[SuperHumans] AS [Extent2]) AS [UnionAll1]
) AS [Limit1]
Я только хочу, чтобы он запрашивал таблицу Humans.
