am using specification pattern (1) with EF Core 3.1.7. I generate an IQueryable object then I want to apply the specification for my use cases.
IQueryable builder method (Base specification method AddInclude) :
query = specification.Includes.Aggregate(query,
(current, include) => current.Include(include));
When I use Include method, it works correctly.
But I need to add custom include conditions. For example:
private void IncludePrice()
{
AddInclude(x => x.Prices.OrderByDescending(x => x.CreationDate));
}
EF Core does not generate queries with this lambda expression. It throws:
Lambda expression used inside Include is not valid.
How can I solve this?
