codeigniter image question

 <?php
 
class Bras extends CI_Controller{
 
	public function __construct()
	{
		parent::__construct();
		$this->load->model('bras_model');
		$this->load->helper('url');
		$this->load->helper('form');
	}
	
	function index() {
	
		$data['title'] = "Voluptuous Decadents";
		$data['heading'] = "Bras";
		$data['query'] = $this->db->get('bras');
		
		$this->load->view('layout');			
		$this->load->view('bras/create', $data);
		
	}
	
	function bras_view(){
		
			$data['title'] = "Voluptuous Decadents";
		$data['heading'] = "Bras";
		$this->db->where('slug', $this->uri->segment(3));
		$data['query'] = $this->db->get('bras');
		
				$this->load->view('layout');			

		$this->load->view('bras/bras_view', $data);
		
	}	
	
public function create()
{
	$this->load->helper('form');
	$this->load->library('form_validation');
	
	$data['title'] = 'Create a bra item';
	
	$this->form_validation->set_rules('title', 'Title', 'required');
	$this->form_validation->set_rules('content', 'content', 'required');
	
	if ($this->form_validation->run() === FALSE)
	{
		$this->load->view('templates/header', $data);	
		$this->load->view('bras/create');
		$this->load->view('templates/footer');
		
	}
	else
	{
		$this->bras_model->set_bras();
		$this->load->view('bras/success');
	}
}	

function do_upload() {
        $config = array(
            'upload_path'   => './uploads/',
            'allowed_types' => 'gif|jpg|png',
            'max_size'      => '100',
            'max_width'     => '1024',
            'max_height'    => '768',
            'encrypt_name'  => true,
        );

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

        if (!$this->upload->do_upload()) {
            $error = array('error' => $this->upload->display_errors());
            $this->load->view('bras/create', $error);
        } else {
            $upload_data = $this->upload->data();
            $data_ary = array(
                
                'file'      => $upload_data['file_name'],
               
            );

            $this->load->database();
            $this->db->insert('bras', $data_ary);

            $data = array('upload_data' => $upload_data);
            $this->load->view('bras/success', $data);
        }
    }
	
}
?>

<?php
class Bras_model extends CI_Model {

	public function __construct()
	{
		$this->load->database();
	}
	
	public function get_bras()
{
	
	
		$query = $this->db->get('bras');
	
}

public function set_bras()
{
	$this->load->helper('url');
	
	$slug = url_title($this->input->post('title'), 'dash', TRUE);
	
	$data = array(
		'title' => $this->input->post('title'),
		'slug' => $slug,
		'content' => $this->input->post('content'),
		'file' => $this->input->post('file_name'),
		'price' => $this->input->post('price'),
	);
	
	return $this->db->insert('bras', $data);
}

}
?>	

<h2>Create a bra item</h2>

<?php echo validation_errors(); ?>

<?php echo form_open_multipart('bras/create') ?>

	<label for="title">Title</label> 
	<input type="input" name="title" /><br />
</form>
<?php echo form_open_multipart('bras/do_upload') ?>
	<input type="file" name="userfile" size="20" /><br />
</form>
<?php echo form_open_multipart('bras/create') ?>
	<label for="content">content</label>
	<textarea name="content"></textarea><br />
	
	<label for="price">Price</label>
	<input type="input" name="price" /><br />
	
	<input type="submit" name="submit" value="Create Bra item" /> 

</form>