My old code for searching my table of boats

FindBoat.cs

public Task<PagedList<BoatDto>> Find(BoatCriteria criteria)
        {
            return Adapter.Connect()
                .CallAsync(async provider =>
                {
                    var hasFilter = !string.IsNullOrWhiteSpace(criteria.Filter);
                    criteria.Filter = criteria.Filter?.ToLower();

                    return await provider.Boats()
                        .Where(b => !hasFilter || b.Name.ToLower().Contains(criteria.Filter)
                               || b.SailNumber.ToLower().Contains(criteria.Filter)
                               || b.Model.ToLower().Contains(criteria.Filter)
                               || b.Make.ToLower().Contains(criteria.Filter))
                        .Select(BoatMappings.Select())
                        .OrderBy(b => b.Name)
                        .ToPagedListAsync(c => c, criteria);
                });
        }