gistfile1.py

    def build_query(self):
        values = []

        return final_query
        for child in self.query_filter.children:
            if isinstance(child, self.query_filter.__class__):
                print 'SQ: ', child # TODO: Recursive call down tree...
            else:
                expression, value = child
                field, filter_type = self.query_filter.split_expression(expression)
                values.append(value)
                        
        return xapian.Query(xapian.Query.OP_AND, values)