| Module | ActionController::Caching::Pages::ClassMethods |
| In: |
vendor/rails/actionpack/lib/action_controller/caching/pages.rb
|
Manually cache the content in the key determined by path. Example:
cache_page "I'm the cached content", "/lists/show"
# File vendor/rails/actionpack/lib/action_controller/caching/pages.rb, line 75
75: def cache_page(content, path)
76: return unless perform_caching
77:
78: benchmark "Cached page: #{page_cache_file(path)}" do
79: FileUtils.makedirs(File.dirname(page_cache_path(path)))
80: File.open(page_cache_path(path), "wb+") { |f| f.write(content) }
81: end
82: end
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 vendor/rails/actionpack/lib/action_controller/caching/pages.rb, line 94
94: def caches_page(*actions)
95: return unless perform_caching
96: options = actions.extract_options!
97: after_filter({:only => actions}.merge(options)) { |c| c.cache_page }
98: end
Expires the page that was cached with the path as a key. Example:
expire_page "/lists/show"
# File vendor/rails/actionpack/lib/action_controller/caching/pages.rb, line 65
65: def expire_page(path)
66: return unless perform_caching
67:
68: benchmark "Expired page: #{page_cache_file(path)}" do
69: File.delete(page_cache_path(path)) if File.exist?(page_cache_path(path))
70: end
71: end