def search(self, regex):
        try:
            spec = {'$or': [{'data.content'    : {'$regex': regex, '$options': 'im'}},
                            {'data.description': {'$regex': regex, '$options': 'im'}}]}
            fields = {'_id': 0}
            cur = self.db.docs.find(spec, fields)
        except Exception as e:
            raise DatabaseException(e)
        return [Document(**row) for row in cur]
def remove_duplicates(self):
        if self.ui.chkBRemoveDuplicates.isChecked():
            for lbl in self.message.message_type:
                seq = lbl.fuzz_values[:]
                seen = set()
                add_seen = seen.add
                lbl.fuzz_values = [l for l in seq if not (l in seen or add_seen(l))]