Multiple Includes() in EF Core

Question

I have an extension method that lets you generically include data in EF:

public static IQueryable IncludeMultiple(this IQueryable          


        

Answer 1

Ofcourse there is,

you could traverse the Expression tree of original params, and any nested includes, add them as

 .Include(entity => entity.NavigationProperty)
 .ThenInclude(navigationProperty.NestedNavigationProperty)

But its not trivial, but definitely very doable, please share if you do, as it can defintiely be reused!

Answer 2

You can do something like this:

public Patient GetById(int id, Func<IQueryable<Patient>, IIncludableQueryable<Patient, object>> includes = null)
        {
            IQueryable<Patient> queryable = context.Patients;

            if (includes != null)
            {
                queryable = includes(queryable);
            }

            return  queryable.FirstOrDefault(x => x.PatientId == id);
        }

var patient = GetById(1, includes: source => source.Include(x => x.Relationship1).ThenInclude(x => x.Relationship2));