orbit-basic/lib/orbit_app/helper/context_link_renderer.rb

module ContextLinkRenderer
  include Renderer

  def render(request,params,module_app,user)
    @module_app = module_app
    @request = request
    @params = params
    @current_user = user
    if display?
      content_tag :li, link_to((I18n.t(@label_i18n) + content_tag(:i, nil, :class => 'icon-chevron-right')).html_safe, eval(@path)), :class => (active?  ? 'active' : nil) 
    end
  end

protected
  def display?
    @available_for.each do |available_for_in_sym| 
      result = case available_for_in_sym
      when :all
        true
      when :manager
        @module_app.is_manager? @current_user
      when :sub_manager
        @module_app.is_sub_manager? @current_user
      else
        (eval(available_for_in_sym).include? @current_user rescue false)
      end # of case 
      return true if result || @current_user.admin?
    end # of collect
    false
  end

end