diff -r 7c12c3e8fd5a php/lib/cache_implementations/no_cache/no_cache.class.php
--- a/php/lib/cache_implementations/no_cache/no_cache.class.php	Wed Mar 07 16:38:46 2012 +0100
+++ b/php/lib/cache_implementations/no_cache/no_cache.class.php	Fri Jun 29 14:14:46 2012 +0200
@@ -61,6 +61,11 @@
     {
         return true;
     }
+
+    function delete_like($id) {
+        return true;
+    }
     
 }
 ?>
+
diff -r 7c12c3e8fd5a php/lib/cache_implementations/session_cache/session_cache.class.php
--- a/php/lib/cache_implementations/session_cache/session_cache.class.php	Wed Mar 07 16:38:46 2012 +0100
+++ b/php/lib/cache_implementations/session_cache/session_cache.class.php	Fri Jun 29 14:14:46 2012 +0200
@@ -78,6 +78,22 @@
           return $application.$cache_type.'_'.$id1.'_'.$id2.'_'.$extra;
     }
 
+    function delete_like($id) {
+        $cache  = $_SESSION['cache'];
+        if(empty($cache))
+        {
+            return;
+        }
+        foreach($caches as $cache_id => $cache_state)
+        {
+            if (strpos($cache_id, $id) !== false)
+            {
+                $_SESSION['cache'][$id] = false;
+            }
+        }
+    }
+
 }
 
 ?>
+