采用再处理的办法,我怎么能把一 has推入一个清单? 我是否必须加入《宣言》? 如果是的话,我如何能够这样做? 我只看到了带有关键和关键/价值奶制品的套头方法。
增 编
采用再处理的办法,我怎么能把一 has推入一个清单? 我是否必须加入《宣言》? 如果是的话,我如何能够这样做? 我只看到了带有关键和关键/价值奶制品的套头方法。
增 编
将任何物体(而不仅仅是黑白)作为名牌照,就是这样做的一种方式。
如果你的使用情况允许,你也可以在名单上储存散射器,并利用SORT GET来检索其他数值。
例:
r.hmset( person:1 , name , adam , age , 33 )
r.hmset( person:2 , name , eva , age , 28 )
r.lpush( occupants , person:1 )
r.lpush( occupants , person:2 )
r.sort( occupants , :get => [ *->name ])
从储存在<代码>occupants清单内的斜体中获取名单。 你可以检索多个领域,但你只能回落。
红色清单类似于Ruby Array。 它没有钥匙。
如redis-rb documentation所讨论的,如果你想将1 Rub的物体储存在红色价值中,你需要首先使用例如将其编成册。 JSON:
Storing objects
Redis only stores strings as values. If you want to store an object inside a key, you can use a serialization/deseralization mechanism like JSON:
>> redis.set "foo", [1, 2, 3].to_json => OK >> JSON.parse(redis.get("foo")) => [1, 2, 3]
你的另一种选择是,如你所提到的那样,将其储存成红色,使用HMSET,但如果你的唯一目的是储存和检索该物体(而不是在Redis上操作),则该物体是多余的。
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