Bring custom form_builder initializer from spree_backend

config/initializers/form_builder.rb

@@ -0,0 +1,15 @@
+#
+# Allow some application_helper methods to be used in the scoped form_for manner
+#
+class ActionView::Helpers::FormBuilder
+  def field_container(method, options = {}, &block)
+    @template.field_container(@object_name,method,options,&block)
+  end
+
+  def error_message_on(method, options = {})
+    @template.error_message_on(@object_name, method, objectify_options(options))
+  end
+end
+
+ActionView::Base.field_error_proc = Proc.new{ |html_tag, instance| "<span class=\"field_with_errors\">#{html_tag}</span>".html_safe }
+