Linq包括替代品 [英] Linq Includes Alternative

问题描述

我像这样从数据库中加载实体

I am a loading a entity from the database like so

    var profileEntity = await Context.Profiles
                                     .Include(x => x.MedicalRecords)
                                     .Include(x => x.DrugHistory)
                                     .Include(x => x.EmploymentStatus)
                                     .SingleOrDefaultAsync(x => x.Id == id);

一切正常，我只是想知道是否有更好的方法来包含其非泛型类型属性，而不是使用 Include方法，因为该特定实体具有很多我需要包含的属性

All is working fine, I was just wondering if there is a better way to include its non generic type properties rather using the Include method because this particular entity has a lot of properties I need to include

推荐答案

不可能自动急切地加载这些属性(

It is not possible to automatically eagerly load those properties (Mechanism for statically defining eager loading for navigation properties), but you can create a reusable extension method for this purpose:

public static IQueryable<Profile> IncludeAll(this IQueryable<Profile> query)
{
     return query.Include(x => x.MedicalRecords)
                 .Include(x => x.DrugHistory)
                 .Include(x => x.EmploymentStatus);
}

可以通过以下方式使用:

Which can be used in a following way:

var profileEntity = Context.Profiles.IncludeAll().SingleOrDefault(x => x.Id == id);

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