[DDC-2055] Add EntityRepository#createResultSetMappingBuilder()

lib/Doctrine/ORM/EntityRepository.php

@@ -19,6 +19,8 @@
 
 namespace Doctrine\ORM;
 
+use Doctrine\ORM\Query\ResultSetMappingBuilder;
+
 use Doctrine\DBAL\LockMode;
 use Doctrine\Common\Persistence\ObjectRepository;
 
@@ -82,6 +84,22 @@ class EntityRepository implements ObjectRepository, Selectable
             ->from($this->_entityName, $alias);
     }
 
+    /**
+     * Create a new result set mapping builder for this entity.
+     *
+     * The column naming strategy is "INCREMENT".
+     *
+     * @param string $alias
+     * @return ResultSetMappingBuilder
+     */
+    public function createResultSetMappingBuilder($alias)
+    {
+        $rsm = new ResultSetMappingBuilder($this->_em, ResultSetMappingBuilder::COLUMN_RENAMING_INCREMENT);
+        $rsm->addRootEntityFromClassMetadata($this->_entityName, $alias);
+
+        return $rsm;
+    }
+
     /**
      * Create a new Query instance based on a predefined metadata named query.
      *