raise error if form is empty

bendavis78 · Jan 27, 2012 · bfebab6 · bfebab6
1 parent 37311fb
commit bfebab6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/formhelper/templatetags/formhelper.py b/formhelper/templatetags/formhelper.py
@@ -41,6 +41,8 @@ def render(self, context):
             form = self.form.resolve(context)
         except template.VariableDoesNotExist:
             raise template.TemplateSyntaxError('a form must either be passed to form_field as first argument or must exist in context as "form"')
+        if not form:
+            raise template.TemplateSyntaxError('form is empty')
         tpl = get_template('formhelper/includes/field.html')
         field = _get_field(self.field, form, context)
         return tpl.render(template.Context({'form':form, 'field':field}))