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ActionController::Caching::Pages::ClassMethods

Public Instance Methods

cache_page(content, path, extension = nil) click to toggle source

Manually cache the content in the key determined by path. Example:

cache_page "I'm the cached content", "/lists/show"
# File lib/action_controller/caching/pages.rb, line 73
def cache_page(content, path, extension = nil)
  return unless perform_caching
  path = page_cache_path(path, extension)

  instrument_page_cache :write_page, path do
    FileUtils.makedirs(File.dirname(path))
    File.open(path, "wb+") { |f| f.write(content) }
  end
end
caches_page(*actions) click to toggle source

Caches the actions using the page-caching approach that’ll store the cache in a path within the page_cache_directory that matches the triggering url.

Usage:

# cache the index action
caches_page :index

# cache the index action except for JSON requests
caches_page :index, :if => Proc.new { |c| !c.request.format.json? }
# File lib/action_controller/caching/pages.rb, line 93
def caches_page(*actions)
  return unless perform_caching
  options = actions.extract_options!
  after_filter({:only => actions}.merge(options)) { |c| c.cache_page }
end
expire_page(path) click to toggle source

Expires the page that was cached with the path as a key. Example:

expire_page "/lists/show"
# File lib/action_controller/caching/pages.rb, line 62
def expire_page(path)
  return unless perform_caching
  path = page_cache_path(path)

  instrument_page_cache :expire_page, path do
    File.delete(path) if File.exist?(path)
  end
end

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