/**
     * Function for updating existing rapports, adding languange constants and updating pm to rapports
     */
    public function updateExistingReports()
    {
        try{

            $guid = '2345mttsv-k65g-p03u-jlchw34bphphiiuu';
            $reports = json_decode($this->getAllReports($guid),true);
            $pmReports = array();
            $regularReports = array();
            $mongoDB = WServices::getDbo($guid, true);
            $mongoDB->collection = $mongoDB->getMongoDBCollection('fs.files');
            foreach($reports as $rep)
            {
                if($rep['model']=='pm')
                {
                    $pmReports[]=$rep;
                    $mongoDB->collection->update(
                            array( '_id' => new \MongoId($rep['_id']['$id']) ),
                            array('$set'    => array(
                                "model" => "rapports",
                                "report_type_en-GB" => "Changelog",
                                "report_type_sv-SE" => utf8_encode("Ändringslogg")
                                )
                            ));
                }
                else
                {
                    $mongoDB->collection->update(
                            array( '_id' => new \MongoId($rep['_id']['$id']) ),
                            array('$set'    => array(
                                "report_type_en-GB" => "Report",
                                "report_type_sv-SE" => "Rapport"
                            )
                            ));
                }
            }
            print_r($pmReports);
        }
        catch (\Exception $e)
        {
            return json_encode(array(self::ERROR => json_encode($e->getMessage())));
        }
    }