+ Added function "isGUID" to object class for checking whether GUIDs exist

1 files changed, 17 insertions, 0 deletions

diff --git a/app/class/object.class.php b/app/class/object.class.php
index 3622d6a..fe487bc 100644
--- a/app/class/object.class.php
+++ b/app/class/object.class.php
@@ -44,6 +44,9 @@ abstract class Object extends Framework
         if (is_null($guid))
             return;
 
+        if (!$this->isGUID($guid))
+            return;
+
         $escdGuid = $this->db->esc($guid);
 
         /* Base fields */
@@ -175,6 +178,20 @@ abstract class Object extends Framework
         $query = "DELETE FROM `" . $this->childTable . "` WHERE `guid` = '" . $this->db->esc($this->guid) . "'";
         $this->db->query($query);
     }
+
+    /*
+     * Check whether given GUID exists
+     */
+    function isGUID($guid)
+    {
+        $query = "SELECT `guid` FROM `object` WHERE `guid` = '" . $this->db->esc($guid) . "'";
+        $result = $this->db->query($query);
+
+        if (count($result) > 0)
+            return true;
+
+        return false;
+    }
 }
 
 ?>