我在她的空洞上有一个简单的信号。 基本用户在搜索术语上出现和类型。 我愿在该页边增加一段,显示最近的搜索。 虽然我只是想在我的申请中增加一个数据库。 我已经读过重,但是,这是否可用于? 我只能推一下重新拆散的10个最近搜索术语,并取回这些术语?
是的,这是重新处置的良好案例。 在红斯名单上删除搜索词,并在你想要显示这些词语时检索最后十条。 定期,除最后10个项目外,你可以将全部物品从名单上删除,以避免过多。
在名单上增列项目(假设<>REDIS)为红色链接:
REDIS.rpush( searches , Xyz )
并检索最后十大类:
REDIS.lrange( searches , -10, -1)
(作为副作用,Redis将首先获得名单的最后部分,这也许是你想要的。) Redis列出了诸如Rubya阵列之类的工作,负面指数意味着从尾就算出。
将名单限定在你可以使用这一指挥力的10个部分:
REDIS.ltrim( searches , -10, -1)
无论在你推动什么时候,你们都这样做,以确保名单永远不会增长,或者你们定期这样做。 <代码>lrange的运行意味着,你只能从任何方面收回最后10项内容,因此它只是一个偏好问题。
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