inject quote strategy into sql walker

lib/Doctrine/ORM/Configuration.php

@@ -634,11 +634,11 @@ class Configuration extends \Doctrine\DBAL\Configuration
      * Set quote strategy class.
      *
      * @since 2.4
-     * @param string $namingStrategy
+     * @param string $className
      */
     public function setQuoteStrategyClassName($className)
     {
-        $quoteStrategy = 'Doctrine\Mapping\AbstractQuoteStrategy';
+        $quoteStrategy = 'Doctrine\ORM\Mapping\AbstractQuoteStrategy';
 
         if ($className !== $quoteStrategy && ! is_subclass_of($className, $quoteStrategy)) {
             throw new \InvalidArgumentException("Invalid quote strategy class");
@@ -657,6 +657,6 @@ class Configuration extends \Doctrine\DBAL\Configuration
     {
         return isset($this->_attributes['quoteStrategyClassName'])
             ? $this->_attributes['quoteStrategyClassName']
-            : 'Doctrine\Mapping\DefaultQuoteStrategy';
+            : 'Doctrine\ORM\Mapping\DefaultQuoteStrategy';
     }
 }

lib/Doctrine/ORM/EntityManager.php

@@ -62,6 +62,13 @@ class EntityManager implements ObjectManager
      */
     private $metadataFactory;
 
+     /**
+     * The quote strategy.
+     *
+     * @var \Doctrine\ORM\Mapping\QuoteStrategy.
+     */
+    private $quoteStrategy;
+
     /**
      * The EntityRepository instances.
      *
@@ -132,9 +139,11 @@ class EntityManager implements ObjectManager
         $this->config       = $config;
         $this->eventManager = $eventManager;
 
-        $metadataFactoryClassName = $config->getClassMetadataFactoryName();
-
-        $this->metadataFactory = new $metadataFactoryClassName;
+        $quoteStrategyClassName     = $config->getQuoteStrategyClassName();
+        $metadataFactoryClassName   = $config->getClassMetadataFactoryName();
+        
+        $this->quoteStrategy    = new $quoteStrategyClassName($conn->getDatabasePlatform());
+        $this->metadataFactory  = new $metadataFactoryClassName;
         $this->metadataFactory->setEntityManager($this);
         $this->metadataFactory->setCacheDriver($this->config->getMetadataCacheImpl());
 
@@ -167,6 +176,16 @@ class EntityManager implements ObjectManager
         return $this->metadataFactory;
     }
 
+    /**
+     * Gets the quote strategy.
+     *
+     * @return \Doctrine\ORM\Mapping\QuoteStrategy
+     */
+    public function getQuoteStrategy()
+    {
+        return $this->quoteStrategy;
+    }
+
     /**
      * Gets an ExpressionBuilder used for object-oriented construction of query expressions.
      *