lib/simple_navigation/item_container.rb in simple-navigation-4.0.5 vs lib/simple_navigation/item_container.rb in simple-navigation-4.1.0

@@ -14,18 +14,20 @@
     def initialize(level = 1) #:nodoc:
       @level = level
       @items ||= []
       @renderer = SimpleNavigation.config.renderer
       @auto_highlight = true
+      @dom_attributes = {}
     end
 
     def dom_attributes
       # backward compability for #dom_id and #dom_class
       dom_id_and_class = {
         id: dom_id,
         class: dom_class
       }.reject { |_, v| v.nil? }
-      (@dom_attributes || {}).merge(dom_id_and_class)
+
+      @dom_attributes.merge(dom_id_and_class)
     end
 
     # Creates a new navigation item.
     #
     # The <tt>key</tt> is a symbol which uniquely defines your navigation item