html_attributes.rb in formtastic-3.1.0.rc1

- old
+ new

@@ -1,9 +1,20 @@
 module Formtastic
   # @private
   module HtmlAttributes
+    # Returns a namespace passed by option or inherited from parent builders / class configuration
+    def dom_id_namespace
+      namespace = options[:custom_namespace]
+      parent = options[:parent_builder]
 
+      case
+        when namespace then namespace
+        when parent && parent != self then parent.dom_id_namespace
+        else custom_namespace
+      end
+    end
+
     protected
 
     def humanized_attribute_name(method)
       if @object && @object.class.respond_to?(:human_attribute_name)
         humanized_name = @object.class.human_attribute_name(method.to_s)
@@ -16,6 +27,6 @@
         method.to_s.send(label_str_method)
       end
     end
 
   end
-end
\ No newline at end of file
+end