orbit-basic/app/helpers/application_helper.rb

module ApplicationHelper

  FLASH_NOTICE_KEYS = [:error, :notice, :warning]
  
  def colorize_in_use_locale(locale)
    @site_in_use_locales.include?(locale)? 'green' : 'red'
  end
  
  def flash_messages
    return unless messages = flash.keys.select{|k| FLASH_NOTICE_KEYS.include?(k)}
    formatted_messages = messages.map do |type|      
      content_tag :div, :class => type.to_s do
        message_for_item(flash[type], flash["#{type}_item".to_sym])
      end
    end
    raw(formatted_messages.join)
  end
  
  def link_back
     link_to t('back'), get_go_back
  end
  
  # Clean the link back
  # Remove the locale but keep all the other params
  def get_go_back
    begin
      if request.url.include?('locale=')
        session[:last_page]
      else
        target = request.referer.split('?')
        vars = target[1].split('&') rescue []
        vars.delete_if {|var| var.include? 'locale=' }
        session[:last_page] = if vars.size > 0
         target[0].to_s + '?' + vars.join('&')
        else
          target[0].to_s
        end
      end
    rescue
      eval(params[:controller].split('/').join('_') << '_url')
    end
  end

  def message_for_item(message, item = nil)
    if item.is_a?(Array)
      message % link_to(*item)
    else
      message % item
    end
  end
  
  def render_node_and_children(node, current_name = 'home')
    ret = ''
    if node
      ret << "<li>"
      ret << (link_to node.name, admin_items_path(:item_id => node.id), :remote => true, :class => (current_name.eql?(node.name) ? 'sidebar_no_link' : 'sidebar_link'))
      ret << render_children(node) if node.children.size > 0
      ret << "</li>"
    end
    ret.html_safe
  end
  
  def render_children(parent)
    ret = ''
    ret << "<ul>"
    parent.children.each do |child|
      ret << render_node_and_children(child)
    end
    ret << "</ul>"
    ret
  end

end