function deleteIndicator($name)
 {
     $res = $this->indicatorDB->findOne(array('owner' => $this->user, 'Name' => $name));
     if ($res != null) {
         $transformation = $res["Transformation"];
         $s = sizeof($transformation) - 1;
         for ($i = $s; $i >= 0; $i--) {
             $tname = str_replace(' ', '_', $name . " {$i}");
             $t = new Trace($this->BaseUri . $tname);
             if ($t->exist()) {
                 $t->Delete();
             }
         }
         $this->indicatorDB->remove(array('owner' => $this->user, 'Name' => $name));
     }
     $res = $this->indicatorDB->findOne(array('owner' => $this->user, 'Name' => $name));
     if ($res == null) {
         return true;
     } else {
         return false;
     }
 }