diff --git a/Doctrine/AbstractElasticaToModelTransformer.php b/Doctrine/AbstractElasticaToModelTransformer.php
index e482202..ecba476 100644
--- a/Doctrine/AbstractElasticaToModelTransformer.php
+++ b/Doctrine/AbstractElasticaToModelTransformer.php
@@ -5,6 +5,7 @@ namespace FOQ\ElasticaBundle\Doctrine;
 use FOQ\ElasticaBundle\HybridResult;
 use FOQ\ElasticaBundle\Transformer\ElasticaToModelTransformerInterface;
 use Elastica_Document;
+use Symfony\Component\Form\Util\PropertyPath;
 
 /**
  * Maps Elastica documents with Doctrine objects
@@ -76,13 +77,13 @@ abstract class AbstractElasticaToModelTransformer implements ElasticaToModelTran
             throw new \RuntimeException('Cannot find corresponding Doctrine objects for all Elastica results.');
         };
 
-        $identifierGetter = 'get'.ucfirst($this->options['identifier']);
+        $identifierProperty =  new PropertyPath($this->options['identifier']);
 
         // sort objects in the order of ids
         $idPos = array_flip($ids);
-        usort($objects, function($a, $b) use ($idPos, $identifierGetter)
+        usort($objects, function($a, $b) use ($idPos, $identifierProperty)
         {
-            return $idPos[$a->$identifierGetter()] > $idPos[$b->$identifierGetter()];
+            return $idPos[$identifierProperty->getValue($a)] > $idPos[$identifierProperty->getValue($b)];
         });
 
         return $objects;
diff --git a/Propel/ElasticaToModelTransformer.php b/Propel/ElasticaToModelTransformer.php
index c7d0493..7e01adb 100644
--- a/Propel/ElasticaToModelTransformer.php
+++ b/Propel/ElasticaToModelTransformer.php
@@ -5,6 +5,7 @@ namespace FOQ\ElasticaBundle\Propel;
 use FOQ\ElasticaBundle\HybridResult;
 use FOQ\ElasticaBundle\Transformer\ElasticaToModelTransformerInterface;
 use Elastica_Document;
+use Symfony\Component\Form\Util\PropertyPath;
 
 /**
  * Maps Elastica documents with Propel objects
@@ -59,17 +60,17 @@ class ElasticaToModelTransformer implements ElasticaToModelTransformerInterface
 
         $objects = $this->findByIdentifiers($this->objectClass, $this->options['identifier'], $ids, $this->options['hydrate']);
 
-        $identifierGetter = 'get'.ucfirst($this->options['identifier']);
+        $identifierProperty =  new PropertyPath($this->options['identifier']);
 
         // sort objects in the order of ids
         $idPos = array_flip($ids);
         if (is_object($objects)) {
-            $objects->uasort(function($a, $b) use ($idPos, $identifierGetter) {
-                return $idPos[$a->$identifierGetter()] > $idPos[$b->$identifierGetter()];
+            $objects->uasort(function($a, $b) use ($idPos, $identifierProperty) {
+                return $idPos[$identifierProperty->getValue($a)] > $idPos[$identifierProperty->getValue($b)];
             });
         } else {
-            usort($objects, function($a, $b) use ($idPos, $identifierGetter) {
-                return $idPos[$a->$identifierGetter()] > $idPos[$b->$identifierGetter()];
+            usort($objects, function($a, $b) use ($idPos, $identifierProperty) {
+                return $idPos[$identifierProperty->getValue($a)] > $idPos[$identifierProperty->getValue($b)];
             });
         }
 
diff --git a/Transformer/ElasticaToModelTransformerCollection.php b/Transformer/ElasticaToModelTransformerCollection.php
index 33bd698..2418e2e 100644
--- a/Transformer/ElasticaToModelTransformerCollection.php
+++ b/Transformer/ElasticaToModelTransformerCollection.php
@@ -3,6 +3,7 @@
 namespace FOQ\ElasticaBundle\Transformer;
 
 use FOQ\ElasticaBundle\HybridResult;
+use Symfony\Component\Form\Util\PropertyPath;
 
 /**
  * Holds a collection of transformers for an index wide transformation.
@@ -36,12 +37,12 @@ class ElasticaToModelTransformerCollection implements ElasticaToModelTransformer
             $sorted[$object->getType()][] = $object;
         }
 
-        $identifierGetter = 'get' . ucfirst($this->options['identifier']);
+        $identifierProperty = new PropertyPath($this->options['identifier']);
 
         $transformed = array();
         foreach ($sorted AS $type => $objects) {
             $transformedObjects = $this->transformers[$type]->transform($objects);
-            $transformed[$type] = array_combine(array_map(function($o) use ($identifierGetter) {return $o->$identifierGetter();},$transformedObjects),$transformedObjects);
+            $transformed[$type] = array_combine(array_map(function($o) use ($identifierProperty) {return $identifierProperty->getValue($o);},$transformedObjects),$transformedObjects);
         }
 
         $result = array();
diff --git a/Transformer/ModelToElasticaAutoTransformer.php b/Transformer/ModelToElasticaAutoTransformer.php
index 2fa0b5d..2d029db 100644
--- a/Transformer/ModelToElasticaAutoTransformer.php
+++ b/Transformer/ModelToElasticaAutoTransformer.php
@@ -6,6 +6,7 @@ use Elastica_Document;
 use Traversable;
 use ArrayAccess;
 use RuntimeException;
+use Symfony\Component\Form\Util\PropertyPath;
 
 /**
  * Maps Elastica documents with Doctrine objects
@@ -44,14 +45,11 @@ class ModelToElasticaAutoTransformer implements ModelToElasticaTransformerInterf
     {
         $array = array();
         foreach ($fields as $key) {
-            $getter = 'get'.ucfirst($key);
-            if (!is_callable(array($object, $getter))) {
-                throw new RuntimeException(sprintf('The method %s::%s is not callable', get_class($object), $getter));
-            }
-            $array[$key] = $this->normalizeValue($object->$getter());
+            $property = new PropertyPath($key);
+            $array[$key] = $this->normalizeValue($property->getValue($object));
         }
-        $identifierGetter = 'get'.ucfirst($this->options['identifier']);
-        $identifier = $object->$identifierGetter();
+        $identifierProperty =  new PropertyPath($this->options['identifier']);
+        $identifier = $identifierProperty->getValue($object);
 
         return new Elastica_Document($identifier, $array);
     }