im trying to write a code where i can submit a form enter the contents in a database, at the same time perform a file upload and have it stored in a folder inside my server

the folder location is called uploads which is located at the root of my site

here is my code

controller (site.php)

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

 class Site extends CI_controller {

public function __construct()
{
    parent::__construct();
    // Your own constructor code
    $this->load->model("site_model");
    $this->load->helper(array('form', 'url'));
} 

public function cmain($type,$page)
{
    $data = $this->_initialize_data(); //this is just a bunch of variables that im calling in another function
    $data['type'] = $type;
    $data['page'] = $page;
    $this->load->vars($data);
    $this->load->view('site/cmain');
}


public function m1()
        {               

        $this->load->library('upload', $config);

            if(isset($_POST['m1']))
            {
                $suffix = $this->input->post("suffix");
                $fn = $this->input->post("fn");
                $mn = $this->input->post("mn");
                $ln = $this->input->post("ln");


                $newdata = array('suffix'=>$suffix,
                                'fn'=>$fn,
                                'mn'=>$mn,
                                'ln'=>$ln,

                                 );
                //this code is for the file upload
                           $config['upload_path'] = 'uploads';
                           $config['allowed_types'] = '*';

                           $this->load->library('upload', $config);

                           $data = array('upload_data' => $this->upload->data());
                 //end of file upload codes                 

                $this->db->insert('myself', $newdata)
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