def get_last_tid(self):
        try:
            spec = {'tid': {'$gt': 0}}
            sort = [('tid', -1)]
            row = self.db.docs.find_one(spec, sort=sort)
        except Exception as e:
            raise DatabaseException(e)
        if row:
            return row['tid']
        return 0
def test_question_reviewers_are_needed_if_suggestions_zero_reviewers(
            self):
        stats = suggestion_services.get_community_contribution_stats()
        stats.question_suggestion_count = 1

        self.assertTrue(stats.are_question_reviewers_needed())