class ArticleSweeper < ActionController::Caching::Sweeper
  observe Article

  def before( controller )
    super
    true # CHECK HERE
  end

  def after_create( article )
    default_expires( article )
    true # AND HERE
  end

  def after_destroy( article )
    default_expires( article )
    true # AND HERE
  end

  def after_update( article )
    default_expires( article )

    expire_fragment( :controller => :articles, :action => :show, :id => "article_#{article.id}" )
    true # AND HERE
  end

  private
  def default_expires( article )
    expire_fragment( :controller => :articles, :action => :index, :type => :all_articles )
#    expire_fragment( :controller => :articles, :action => :rss )
    expire_fragment( :controller => :articles, :action => :projects, :type => :all_articles  )

    expire_fragment( :controller => :articles, :action => :show, :id => article.id )
    expire_fragment( :controller => :welcome, :action => :index, :action_suffix => :global_menu  )

    expire_fragment( :controller => :articles,
                    :action => :by_date,
                    :year => article.created_at.year,
                    :month => article.created_at.month,
                    :type => :all_articles
                   )
  end
end