内联的 sql 语句怎么优雅的用 ORM 写出来

我写了一个冗余的字段 type 如果不用冗余的话 就查询
buy_type =1

       $list = MemberDecorateKnapsack::where([
            ['member_id', '=', $member_id],
            ['end_time', '>', time()],
            ['type', '>', $type],
        ])
            ->orderByDesc('id')
            ->select()->get();

sql语句是这样子写就可以不冗余字段了..在orm中如何写优雅的写出来.

SELECT *
FROM member_decorate_knapsack as d
INNER JOIN goods_decorate as g
ON member_id = 6674124703403081728 and d.decorate_id = g.id and buy_type =1

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