Class: ActionController::Caching::Actions::ActionCacheFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/action_controller/caching/actions.rb

Overview

:nodoc:

Instance Method Summary collapse

Constructor Details

#initialize(options, &block) ⇒ ActionCacheFilter

Returns a new instance of ActionCacheFilter.



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# File 'lib/action_controller/caching/actions.rb', line 149

def initialize(options, &block)
  @cache_path, @store_options, @cache_layout =
    options.values_at(:cache_path, :store_options, :layout)
end

Instance Method Details

#around(controller) ⇒ Object 



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# File 'lib/action_controller/caching/actions.rb', line 154

def around(controller)
  cache_layout = @cache_layout.respond_to?(:call) ? @cache_layout.call(controller) : @cache_layout

  path_options = if @cache_path.is_a?(Proc)
    controller.instance_exec(controller, &@cache_path)
  elsif @cache_path.respond_to?(:call)
    @cache_path.call(controller)
  else
    @cache_path
  end

  cache_path = ActionCachePath.new(controller, path_options || {})

  body = controller.read_fragment(cache_path.path, @store_options)

  unless body
    controller.action_has_layout = false unless cache_layout
    yield
    controller.action_has_layout = true
    body = controller._save_fragment(cache_path.path, @store_options)
  end

  body = controller.render_to_string(body: body, layout: true) unless cache_layout

  controller.response_body = body
  controller.content_type = Mime[cache_path.extension || :html]
end