public function uploadDataCsv()
 {
     if (isset($_POST['submit_a'])) {
         $file = $_FILES['file'];
         $name = $_FILES['file']['name'];
         $tmp_name = $_FILES['file']['tmp_name'];
         $type = $_FILES['file']['type'];
         $size = $_FILES['file']['size'];
         $ext = explode('.', $name);
         if ($type != 'application/vnd.ms-excel' && $ext != end($ext)) {
             $this->view->add_error('file', 'file harus dalam format .csv');
         }
         if ($size > 30000000) {
             $this->view->add_error('file', 'ukuran file maksimal 30 MB ya!');
         }
         if (!$this->view->is_error()) {
             $pegawai = new Pegawai($this->registry);
             $destination = 'files/' . $name;
             move_uploaded_file($tmp_name, $destination);
             $d_peg = CSV::readCSV($destination);
             //var_dump($d_peg);
             foreach ($d_peg as $key => $value) {
                 //validasi data dengan validasi nip
                 $nip = $value[1];
                 /*$is_angka = is_numeric($nip); 
                 		if(!$is_angka) continue; //jika bukan angka
                 		$len = strlen($nip);
                 		if($len!=18 && $len!=6) continue; //jika panjang bukan 18 atau 6
                 		$nip_th_lhr = (int) substr($nip, 0,4);
                 		if($nip_th_lhr<(date('Y')-60) || $nip_th_lhr>(date('Y')-18)) continue; //jika umur gak sesuai
                 		$nip_th_masuk = (int) substr($nip, 7,4); 
                 		if($nip_th_masuk<(date('Y')-40)) continue; //jika tahun masuk > 40
                 		$nip_jk = (int) substr($nip, 14,1);
                 		if($nip_jk>2 || $nip_jk<1) continue; //jika gender bukan 1 atau 2, tidak menerima gender ke-3 :)*/
                 //end of validasi data
                 if ($pegawai->is_exist('nip', $value[1])) {
                     $data = array('nama' => $value[2], 'eselon' => $value[3], 'jabatan' => $value[4], 'unit' => $value[5]);
                     $pegawai->edit('nip=' . $value[1], $data);
                 } else {
                     $data = array('nip' => $value[1], 'nama' => $value[2], 'eselon' => $value[3], 'jabatan' => $value[4], 'unit' => $value[5]);
                     $pegawai->add($data);
                 }
             }
             unlink($destination);
             $this->view->add_success('success', 'update data pegawai berhasil!');
         }
     }
     $this->view->aksi = 'csv';
     $this->view->render('admin/pegawai');
 }