From c5b8926a0d3921e6fd3f83e1813bd13104970555 Mon Sep 17 00:00:00 2001
From: Raul Fraile <raulfraile@gmail.com>
Date: Wed, 18 Feb 2015 23:32:19 +0100
Subject: [PATCH] #4032 improved comments about em option

---
 cookbook/form/data_transformers.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cookbook/form/data_transformers.rst b/cookbook/form/data_transformers.rst
index 072d02a1aa8..adc5596ec51 100644
--- a/cookbook/form/data_transformers.rst
+++ b/cookbook/form/data_transformers.rst
@@ -122,7 +122,9 @@ by calling ``addModelTransformer`` (or ``addViewTransformer`` - see
         {
             // ...
 
-            // this assumes that the entity manager was passed in as an option
+            // the "em" is an option that you pass when creating your form. Check out
+            // the 3rd argument to createForm in the next code block to see how this
+            // is passed to the form (also see setDefaultOptions).
             $entityManager = $options['em'];
             $transformer = new IssueToNumberTransformer($entityManager);