patch file for using foreign keys to non pk reference (only for ManyToOne)

doctrine-non-pk-fk-patch.php

diff --git a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
index d73983c..9f8a253 100644
--- a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
@@ -598,10 +598,18 @@ class BasicEntityPersister
                     $quotedColumn = $this->quoteStrategy->getJoinColumnName($joinColumn, $this->_class, $this->_platform);
 
                     $this->quotedColumns[$sourceColumn] = $quotedColumn;
-
-                    if ($newVal === null) {
-                        $result[$owningTable][$sourceColumn] = null;
-                    } else if ($targetClass->containsForeignIdentifier) {
+                    if ($newVal === null) {
+                        $result[$owningTable][$sourceColumn] = null;
+                        $this->_columnTypes[$sourceColumn] = $targetClass->getTypeOfColumn($targetColumn);
+                        return $result;
+                    }
+                    // $newVal is not null
+                    // NEW FEATURE: undefined index (foreign keys to non pk columns)
+                    // add the real field name and value, which is used for the assoc.
+                    // otherwise this only works if $targetColumn is the primary key and nothing else
+                    $fieldName = $targetClass->getFieldName($targetColumn);
+                    $newValId[$fieldName] = $targetClass->getFieldValue($newVal, $fieldName);
+                    if ($targetClass->containsForeignIdentifier) {
                         $result[$owningTable][$sourceColumn] = $newValId[$targetClass->getFieldForColumn($targetColumn)];
                     } else {
                         $result[$owningTable][$sourceColumn] = $newValId[$targetClass->fieldNames[$targetColumn]];

Is there a patch for one is one mapping?

Thanks.