Fix error in date in accompanying period timeline

Timeline/AbstractTimelineAccompanyingPeriod.php

@@ -83,8 +83,12 @@ abstract class AbstractTimelineAccompanyingPeriod implements TimelineProviderInt
         
         return array(
             'id' => $metadata->getColumnName('id'),
-            'date' => $metadata->getColumnName('openingDate'),
             'FROM' => $metadata->getTableName(),
+            'WHERE' => sprintf('%s = %d', 
+                $this->em
+                    ->getClassMetadata('ChillPersonBundle:AccompanyingPeriod')
+                    ->getAssociationMapping('person')['joinColumns'][0]['name'],
+                $args['person']->getId())
         );
     }