Contrroller Upload

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Upload extends CI_Controller {
  public function __construct()
  {
      parent::__construct();
      $this->load->model('MDL_upload');
  }

    public function index()
    {

        $data['title'] = "Quality Health Safety Environment";
        $this->load->database();
        $data['data'] = $this->db->get('upload')->result();
        $this->load->view('create', $data, FALSE);
    }

    public function create()
    {
    	if (isset($_POST['submit'])){
    		$this->form_validation->set_rules('name', 'Name', 'required');

    		$config['upload_path']          = './uploads/file';
            $config['allowed_types']        = 'pdf';
            $config['max_size']             = 2048;
            $config['encrypt_name']            = FALSE;
           // $config['max_height']           = 768;
            $this->load->library('upload', $config);

            // //file 1
            // if(!empty($_FILES['file1']))
            // {
            // 	$this->upload->do_upload('file1');
            // 	$data1= $this->upload->data();
            // 	$file1 = $data1['file_name'];

            // }
            //file2
            if(!empty($_FILES['file2']))
            {
            	$this->upload->do_upload('file2');
            	$data2= $this->upload->data();
            	$file2 = $data2['file_name'];

            }

            if ($this->form_validation->run())
            {
            	$name = $this->input->post('name', TRUE);
            	$data = ['name'=>$name, 'file1'=>$file1, 'file2'=>$file2];
            	$insert = $this->db->insert('upload', $data);
            	if ($insert){
            		$this->session->set_flashdata('pesan', '<div class="alert alert-succes"> Data Berhasil Disimpan </div>');
            		redirect('upload');
              }


    		}
    		else
    		{
    		$this->index();
    		}

    	}
    	else
    	{
    		$this->index();
        }
      }

      public function hapus($id)
      {
        $this->MDL_upload->hapus_data($id,'upload');
        redirect('Upload');
      }


          }