upload banyak

-------------------HELPER--------------------
function multiple_upload($upload_dir = 'uploads', $config = array())
{
$CI = &get_instance();
$files = array();

if (empty($config)) {
$config['upload_path'] = realpath($upload_dir);
$config['allowed_types'] = 'gif|jpg|jpeg|jpe|png|pdf';
// $config['max_size'] = '2048';
}



$errors = false;
$no= $CI->input->post('no_urut');

foreach ($_FILES as $key => $value) {
    $nama='GE'.$no.'name_'.mt_rand();
$config['file_name'] = $nama;
$CI->load->library('upload', $config);

if (!empty($value['name'])) {
if (!$CI->upload->do_upload($key)) {
$data['upload_message'] = $CI->upload->display_errors(ERR_OPEN, ERR_CLOSE); // ERR_OPEN and ERR_CLOSE are error delimiters defined in a config file
$CI->load->vars($data);

$errors = true;
} else {
// Build a file array from all uploaded files

$files[] = $CI->upload->data();
}
}
}
if ($errors) {
foreach ($files as $key => $file) {
@unlink($file['full_path']);
}
return $data;
}
return $files;
}
---------------Controller------------------
function administrasi_tambah() {
                if($this->session->userdata('sudah_login_pelamar')){
                                $this->load->helper('basic');
                                $file = multiple_upload('./kelengkapan_dokumen/');

                                if ( isset($file['upload_message'])){
                                        print_r($file);exit;
                                        $array = array( 'content' => $this->load->view('akun_pelamar/gagal','',true) );
                   $this->load->view('akun_pelamar/menu', $array);
                                }else{
                                        $reg['query'] = $this->pelamar_model->tambahkelengkapan();
                                                if($reg['query']) {
                                                        $array = array( 'content' => $this->load->view('akun_pelamar/sukses','',true) );
                                                $this->load->view('akun_pelamar/menu', $array);
                                                }
                                }

                                }else {
                        redirect('index/index');
                        }
        }

-----------------------MODEL------------------
function tambahkelengkapan() {
        $no= $this->input->post('no_urut');
        $img = $this->upload->data();
    //  var_dump ($path.$img['file_name']); //string(36) "./kelengkapan_dokumen/WaTeRfAL._.jpg"

      $query1  = $this->db->query("SELECT * FROM form WHERE type != '0'");
      $result = $query1->result();

      $i=0;
      $len=count($result);

        $emprit= "INSERT INTO penilaian (no_urut,";
        foreach($result as $row){
            if($i == $len - 1) {
                $emprit .= "".$row->nama."";
                }else{
                    $emprit .= "".$row->nama.",";
                    }
                    $i++;
      }
      $emprit .= ") VALUES ('".$_POST['no_urut']."',";

        $a=0;
        foreach($result as $row){
            if($a == $len - 1) {

                if($row->type == 'file'){
                    $emprit .= "'".$nama."'";
                }else{
                    $emprit .= "'".$_POST[$row->nama]."'";
                        }

                }else{

                    if($row->type == 'file'){
                    $emprit .= "'".$nama."',";
                }else{
                $emprit .= "'".$_POST[$row->nama]."',";
                    }
                }
                    $a++;
            }
        $emprit .= ");";
      $query = $this->db->query($emprit);
      return $query;
      }