private function _uploadImage()
{
$config[\'upload_path\'] = \'./upload/product/\';
$config[\'allowed_types\'] = \'gif|jpg|png\';
$config[\'file_name\'] = $this->product_id;
$config[\'overwrite\'] = true;
$config[\'max_size\'] = 1024; // 1MB
// $config[\'max_width\'] = 1024;
// $config[\'max_height\'] = 768;
$this->load->library(\'upload\', $config);
if ($this->upload->do_upload(\'image\')) {
return $this->upload->data("file_name");
}
return "default.jpg";
}