#==
# Copyright (C) 2008 James S Urquhart
# 
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#++

class PageSweeper < ActionController::Caching::Sweeper
  observe [Page] + Page.widgets
  
  def after_create(record)
    expire_cache(record) unless record.class == Page
  end
  
  def after_save(record)
    expire_cache(record)
  end
  
  def after_destroy(record)
    expire_cache(record)
  end
  
  def expire_cache(record)
    if record.class != Page
      return unless record.page.is_public
    end
    ActionController::Base.expire_page(controller: 'pages', action: 'public', id: record.class == Page ? record.id : record.page_id)
  end
end
