How to update image data with form_upload in codeigniter - codeigniter

Question

How to edit this data with image inside.Data have been updated when i press the button "submit", but the old image can not change with the new image
if($this->input->post('go_upload'))
{
validation.......
$IdPerumahan = $this->uri->segment(3);
if ($this->form_validation->run() == TRUE)
{
$lokasi_file = $_FILES['userfile']['tmp_name'];
$nama_file = $_FILES['userfile']['name'];
$ukuran_file = $_FILES['userfile']['size'];
$direktori_file = "./images/$nama_file";
if (empty($lokasi_file))
{
$this->load->model('PerumahanMDL');
$this->PerumahanMDL->SimpanUbahPerumahan($IdPerumahan);
redirect('PerumahanCON');
} else
{
$config['upload_path'] = './images/';
$config['allowed_types'] = 'gif|jpg|png|bmp|jpeg|png';
$config['max_size'] = '2000';
$config['overwrite'] = 'true';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
$this->upload->initialize($config);
$field_name = "userfile";
if(!$this->upload->do_upload("userfile"))
{
$data['data']= 'TambahPerumahanVW';
$this->load->view('Desain2',$data);
}else
{
$asdf = $this->upload->data();
$config = array(
'source_image' => $asdf['full_path'],
'new_image' => './images/thumb',
'maintain_ration' => true,
'width' => 180,
'height' => 120
);
$this->load->library('image_lib', $config);
$this->image_lib->resize();
$userfile = $_FILES['userfile']['name'];
$this->load->model('PerumahanMDL');
$this->PerumahanMDL->UbahDataPerumahan($userfile,$IdPerumahan);
redirect('PerumahanCON');
}
}
}
}
}

Answer 1

Add overwrite = true.
$this->load->library('upload', $config);
$this->upload->overwrite = true;