From a4795d63008a480c5c323e81bd139d21dcd8bd0c Mon Sep 17 00:00:00 2001
From: zYne <zYne@625475ce-881a-0410-a577-b389adb331d8>
Date: Mon, 12 Nov 2007 18:08:20 +0000
Subject: [PATCH] added hasImpl()

---
 lib/Doctrine/Configurable.php | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/Doctrine/Configurable.php b/lib/Doctrine/Configurable.php
index eb5b144de..cac9ed8f7 100644
--- a/lib/Doctrine/Configurable.php
+++ b/lib/Doctrine/Configurable.php
@@ -164,7 +164,7 @@ abstract class Doctrine_Configurable extends Doctrine_Locator_Injectable
     
     public function getParamNamespaces()
     {
-        return array_keys($this->_params);	
+        return array_keys($this->_params);
     }
 
     public function setParam($name, $value, $namespace = null) 
@@ -225,6 +225,18 @@ abstract class Doctrine_Configurable extends Doctrine_Locator_Injectable
         }
         return $this->_impl[$template];
     }
+    
+    
+    public function hasImpl($template)
+    {
+        if ( ! isset($this->_impl[$template])) {
+            if (isset($this->parent)) {
+                return $this->parent->hasImpl($template);
+            }
+            return false;
+        }
+        return true;
+    }
 
     /**
      * getCacheDriver