Allow using the "extra" field in forms derived from TextWidget

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33617 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/Formulator/Widget.py

@@ -337,6 +337,11 @@ class TextWidget(Widget):
     for line in old_value:
       value.append(escape(line))
     value = '<br/>'.join(value)
+
+    extra = field.get_value('extra')
+    if extra not in (None, ''):
+      value = "<div %s>%s</div>" % (extra, value)
+
     css_class = field.get_value('css_class')
     if css_class not in ('', None):
       # All strings should be escaped before rendering in HTML