Entity Framework Generic repository including properties through parameter

Question

I have an implementation of a Generic Repository in Entity Framework which I am trying to improve to use the .Include(..) function provided by EF instead of including the na

Answer 1

protected internal IQueryable Filter(Expression> predicate, params Expression>[] includeProperties)
{
    var query = RetrieveQuery();

    if (predicate != null)
    {
        query = query.Where(predicate).AsQueryable();
    }

    if (includeProperties != null)
    {
        query = _queryableUnitOfWork.ApplyIncludesOnQuery(query, includeProperties);
    }

    return (query);
}

And this method called there

public IQueryable ApplyIncludesOnQuery(IQueryable query, params Expression>[] includeProperties) where TEntity : class, IEntity
{
    // Return Applied Includes query
    return (includeProperties.Aggregate(query, (current, include) => current.Include(include)));
}

Filter Method Call

 public IEnumerable GetActiveShowStockProductListByProduct(int productId)
            {
                var foundedPStockroducts = Filter(
                    ent => ent.ProductId == productId && ent.IsActive,
                    ent => ent.StockProductPrices,
                    ent => ent.StockProductDepots,
                    ent => ent.StockProductSpecificationValues,
                    ent => ent.StockProductSpecificationValues.Select(spsv => spsv.SpecificationValue)
                    );

                // Map foundedPStockroducts to showStockProductList
                var showStockProductList = TypeAdapterFactory.Adapter.Adapt>(foundedPStockroducts).ToList();

                return (showStockProductList);
            }