private void OrderBy <TSource, TKey>(Expression <Func <TSource, TKey> > keySelector,
SortOrder sortOrder,
bool thenBy = false)
{
if (SkipCount.HasValue)
{
throw new NotSupportedException(
"Pomona LINQ provider does not support calling Skip() before OrderBy/OrderByDescending");
}
if (TakeCount.HasValue)
{
throw new NotSupportedException(
"Pomona LINQ provider does not support calling Take() before OrderBy/OrderByDescending");
}
if (!thenBy)
{
OrderKeySelectors.Clear();
}
if (SelectExpression != null && GroupByKeySelector == null)
{
// Support order by after select (not when using GroupBy)
OrderKeySelectors.Add(new Tuple <LambdaExpression, SortOrder>(MergeWhereAfterSelect(keySelector),
sortOrder));
}
else
{
OrderKeySelectors.Add(new Tuple <LambdaExpression, SortOrder>(keySelector, sortOrder));
}
}
internal void QGroupBy <TSource, TKey>(Expression <Func <TSource, TKey> > keySelector)
{
if (SkipCount.HasValue)
{
throw new NotSupportedException("Pomona LINQ provider does not support calling Skip() before GroupBy()");
}
if (TakeCount.HasValue)
{
throw new NotSupportedException("Pomona LINQ provider does not support calling Take() before GroupBy()");
}
if (GroupByKeySelector != null)
{
throw new NotSupportedException("Pomona LINQ provider does not support multiple chained GroupBy()");
}
if (OrderKeySelectors.Any())
{
throw new NotSupportedException("Pomona LINQ provider does not support calling OrderBy before GroupBy()");
}
GroupByKeySelector = keySelector;
}
