module Grandstand # The Grandstand::Helper module will give you a number of ways to render page content # in your layouts, thus simplifying (considerably!) the headaches you may experience # with optional columns, etc. module Helper # Adds section-oriented class names if a current_page exists. Useful for styling your site to account for the presence # of various content sections; e.g. if a CMS user adds a page with content in the "left" column but not a page with # content in the "right" column, you can add: # # > # # and end up with: # # # # Likewise, you can add your own classes to the page_class_name method if you want to add other classes to the BODY tag, like so: # # > # # Which might produce something like: # # # # Using this, you can really dig deep into your stylesheets to hide empty columns and more def page_class_name(*extras) class_names = (extras.map(&:to_s) + Array(current_page.try(:class_names))).reject(&:blank?) unless class_names.empty? %( class="#{class_names.join(' ')}") end end # Displays formatted content for a page section based on its 'filter' attribute. Useful for rendering individual # page sections (if you're feeling so bold). It's probably easier to user page_section instead. def page_content(page_section) case page_section.filter when 'markdown' markdown(page_section.content) when 'textfile' textile(page_section.content) else simple_format(page_section.content) end end # page_section can be used to check for content in a certain area of your layout, and to render it as well. It will # return nil if there is no content for that section - so use it to quickly scope out sections and add them to your # layout when present, e.g.: # # <% if page_section(:left) -%> #

# <%= page_section(:left) %> # #

# <% end -%> # def page_section(section_name) return nil unless current_page section_name = section_name.to_sym @_page_sections ||= {} return @_page_sections[section_name] if @_page_sections.has_key?(section_name) if current_page.page_sections.respond_to?(section_name) && !current_page.page_sections.send(section_name).empty? @_page_sections[section_name] = current_page.page_sections.send(section_name).map {|page_section| page_content(page_section) }.join("\n\n") else @_page_sections[section_name] = nil end end def page_title(separator = '|') if object = @post || current_page "#{object.name} #{separator}" end end end end