Rails3 - 缓存与Rails.cache.fetch发展模式

问题描述

在发展，以下（简体）语句总是记录高速缓存未命中，在生产它按预期工作：

In development, the following (simplified) statement always logs a cache miss, in production it works as expected:

@categories = Rails.cache.fetch("categories", :expires_in => 5.minutes) do
  Rails.logger.info "+++ Cache missed +++"
  Category.all
end

如果我改变config.cache_classes从虚假到真实的配置/ development.rb，它的工作原理以及在开发模式，然而，这使得开发比较痛苦。是否有任何配置设置，就像 config.cache_classes = FALSE 除了Rails.cache.fetch从缓存中读取如果可能的话？

If I change config.cache_classes from false to true in config/development.rb, it works as well in development mode, however, this makes development rather painful. Is there any configuration setting that is like config.cache_classes = false except that Rails.cache.fetch is fetching from cache if possible?

推荐答案

尝试把下面的 /config/environments/development.rb

# Temporarily enable caching in development (COMMENT OUT WHEN DONE!)
config.action_controller.perform_caching = true

此外，如果你的缓存存储配置是 /config/environments/production.rb ，然后你将需要适当的行复制到 development.rb 以及。例如，如果你的缓存存储的是达利的memcache宝石：

Additionally, if your cache store configuration is in /config/environments/production.rb, then you will need to copy the appropriate line into development.rb as well. For example, if your cache store is the Dalli memcache gem:

# copied from production.rb into development.rb for caching in development
config.cache_store = :dalli_store, '127.0.0.1'

希望有所帮助。

Hope that helps.

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