From e7a6d8799071fb33da9c2fcadfe68f829809593a Mon Sep 17 00:00:00 2001
From: Francisco Facioni <fran6co@gmail.com>
Date: Thu, 12 Jan 2012 14:38:07 -0300
Subject: [PATCH] When using a ManyToMany relationship no listener is notified
 about any change to the owning entity.

What I'm doing with this patch is marking the entity for update when there is a modification in the ManyToMany relationship so the listeners are notified about it.

The main reason for this is for hooking up services like Solr or other indexers to update the entities even for ManyToMany relationships.
---
 lib/Doctrine/ORM/UnitOfWork.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 0ebdedcb9..bf491084e 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -620,6 +620,15 @@ class UnitOfWork implements PropertyChangedListener
         foreach ($class->associationMappings as $field => $assoc) {
             if (($val = $class->reflFields[$field]->getValue($entity)) !== null) {
                 $this->computeAssociationChanges($assoc, $val);
+                if (!isset($this->entityChangeSets[$oid]) &&
+                    $assoc['isOwningSide'] &&
+                    $assoc['type'] == ClassMetadata::MANY_TO_MANY &&
+                    $val instanceof PersistentCollection &&
+                    $val->isDirty()) {
+                    $this->entityChangeSets[$oid]   = array();
+                    $this->originalEntityData[$oid] = $actualData;
+                    $this->entityUpdates[$oid]      = $entity;
+                }
             }
         }
     }