# Methods added to this helper will be available to all templates in the application.
module ApplicationHelper

  # #
  # Taken From "HowToUseActsAsTree in Ruby"
  # http://wiki.rubyonrails.com/rails/pages/HowToUseActsAsTree
  # #
  def render_tree_select(pages, name, control_id, control_name, blank_record)
    ret = ''    
    ret += "<select name=\""+control_name+"\" id=\""+control_id+"\">" 
    ret += "<option value=\">"+blank_record+"\">"+blank_record+"</option>" if not blank_record.empty?
    for page in pages     
      ret += "<option value=\"" + page.id.to_s + "\">" 
      ret += page[name] if page[name]
      ret += recurse_tree(page, 0, name) if page.children.size > 0 
    end 
    ret += "</select>" 
  end

  # #
  # Taken From "HowToUseActsAsTree in Ruby"
  # http://wiki.rubyonrails.com/rails/pages/HowToUseActsAsTree
  # #
  def recurse_tree(page, depth, name)
    depth = depth + 1
    level = "- " * depth
    ret = ''
    if page.children.size > 0
      page.children.each { |subpage| 
        if subpage.children.size > 0
          ret += '<option value="'+subpage.id.to_s+'">'
          ret += h(level + subpage[name])
          ret += recurse_tree(subpage, depth, name)
          ret += '</option>'
        else
          ret += '<option value="'+subpage.id.to_s+'">'
          ret += h(level + subpage[name])
          ret += '</option>'
         end
       }
       ret += ''
    end
  end
  
end