def SQL(*keys):
    def _SQL(func):
        def _sqlfunc(cls, *args):
            from django.db import connection
            cursor = connection.cursor()
            cursor.execute(func.__doc__, args)
            rv = cursor.fetchall()

            if keys:
                rv = [dict(zip(keys, i)) for i in rv]

            return rv

        return classmethod(_sqlfunc)
    return _SQL

#EXAMPLE
@SQL('foo', 'bar', 'baz')
def foo(cls):
    '''SELECT foo, AVG(bar) AS bar, AVG(baz) AS baz
       FROM foos
       WHERE quuux=%s
       GROUP BY foo
       ORDER BY foo'''

#INVOCATION
Foo.foo(1)