Customizing Menus in RefineryCMS 2.0

app_cells_menu-cell.rb

class MenuCell < Cell::Rails
  helper MenuHelper

  def utility(args)
    @roots = args[:menu].roots.select {|p| p[:menu_location] == 'utility' }
    @roots_count = @roots.count

    render
  end

  def main(args)
    @roots = args[:menu].roots.select {|p| p[:menu_location] == 'main' }
    @roots_count = @roots.count

    render
  end

  def footer(args)
    @roots = args[:menu].roots.select {|p| p[:menu_location] == 'footer' }
    @roots_count = @roots.count
    render
  end

  def about(args)
    # Get all menu pages, not just roots
    @roots = args[:menu].select {|p| p[:menu_location] == 'about' }
    @roots_count = @roots.count

    render
  end

end

app_decorators_lib_refinery_menu-item-decorator.rb

Refinery::MenuItem.class_eval do
  class << self
    def attributes
      [:title, :parent_id, :lft, :rgt, :depth, :url, :menu, :menu_match, :menu_location]
    end
  end
end

app_decorators_models_refinery_page-decorator.rb

::Refinery::Page.class_eval do

  MENU_LOCATIONS = %w(utility main footer about)

  validates :menu_location, :inclusion => {:in => MENU_LOCATIONS}, :allow_blank => true, :allow_nil => true
  attr_accessible :menu_location

  def to_refinery_menu_item
    {
      :id => id,
      :lft => lft,
      :menu_match => menu_match,
      :parent_id => parent_id,
      :rgt => rgt,
      :title => refinery_menu_title,
      :type => self.class.name,
      :url => url,
      :menu_location => menu_location
    }
  end

  class << self
    MENU_LOCATIONS.each do |location|
      define_method("in_#{location}_menu".to_sym) do
        where(:menu_location => location)
      end
    end
  end

end

app_helpers_application-helper.rb

module ApplicationHelper

  def render_menu(template)
    render_cell :menu, template.to_sym, :menu => refinery_menu_pages
  end

end

app_helpers_menu-helper.rb

module MenuHelper

  def css_for_item(index, has_children = false)
    css = []
    css << Refinery::Core.menu_css[:first] if index == 0 unless Refinery::Core.menu_css[:first].nil?
    css << Refinery::Core.menu_css[:last] if (index + 1) == @roots_count unless Refinery::Core.menu_css[:last].nil?
    css << 'submenu' if has_children
    css
  end

end

app_views_refinery_admin_pages_-form-advanced-options.html.erb

<% # ... %>

    <div class='field'>
      <%= f.label :menu_location %>
      <%= f.select :menu_location, ::Refinery::Page::MENU_LOCATIONS.collect {|m| [m.capitalize, m]}, :include_blank => true %>
    </div>
  </div>

  <%= render 'form_advanced_options_seo', :f => f %>

<% # ... %>

db_migrate_num-add-menu-location-to-refinery-pages.rb

# Run rake db:migrate.

class AddMenuLocationToRefineryPages < ActiveRecord::Migration
  def change
    add_column :refinery_pages, :menu_location, :string
  end
end

Gemfile

# Add this:
gem 'cells'

views.html.haml

- ####################
- # app/views/refinery/_footer.html.haml

%footer#footer
  = render_menu 'footer'

- ####################
- # app/cells/menu/main.html.haml

%nav#navigation
  .container
    %span.logo.ir Guru<span></span>
    %ul
      - @roots.each_with_index do |page, index|
        %li{:class => css_for_item(index, page.children.present?).join(" ")}
          = link_to refinery.url_for(page.url) do
            = page.title
            - if page.children.present?
              <span></span>

          - if page.children.present?
            %div
              %nav
                - page.children.each do |child|
                  %span.title= child.title
                  - if child.children.present?
                    %ul
                      - child.children.each do |grandchild|
                        %li
                          = link_to grandchild.title, refinery.url_for(grandchild.url)