Contrroller Upload

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

class Upload extends CI_Controller {

    public function index()
    {

        $data['title'] = "Upload file";
        $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']            = TRUE;
           // $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();
        }
    }

   }