def get_ordering(self, reverseTime=False):
<EOL>reverseTime = getattr(self,'<STR_LIT>',reverseTime)<EOL>timeParameter = '<STR_LIT>' if reverseTime is True else '<STR_LIT>'<EOL>return ('<STR_LIT>', '<STR_LIT>', '<STR_LIT>', timeParameter)<EOL>
This method provides the tuple for ordering of querysets.  However, this will only
work if the annotations generated by the get_annotations() method above have been
added to the queryset.  Otherwise, the use of this ordering tuple will fail because
the appropriate column names will not exist to sort with.