带有查询字符串参数的 Rails 动作缓存 [英] Rails action caching with querystring parameters

问题描述

如何使用 Rails 缓存我的 REST 控制器，其中我的操作具有查询字符串参数?

How can I cache my REST controller with Rails where my actions have query string parameters?

Example: GET /products/all.xml?max_price=200

谢谢！

推荐答案

如果你想缓存一个动作，基于所有的查询参数(或者说几乎所有的参数)，你可以这样做:

If you want to cache an action, based on all the query parameters (or say on nearly all of them), you can do:

caches_action :my_action, :cache_path => Proc.new { |c| c.params }

或者，您可能只需要一些仅用于 Analytics 的参数(但与您获取的记录无关):

Or, maybe you want all but some params that you just use for Analytics (but that have no bearing on the records you're fetching):

caches_action :my_action, :cache_path => Proc.new { |c| c.params.delete_if { |k,v| k.starts_with?('utm_') } }

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