How to use Uploader, the Prestashop upload management class?

Tired of using $\_FILES and move\_uploaded_file? Well, Uploader is here to help you! No more error checking, extension safety, etc. This tutorial will show you how to upload files from a HelperForm to store it on your FTP server.

class AdminAllFitLieuController extends ModuleAdminController
{
  public function __construct()
  {
    /* [...] */
    parent::__construct();
    /* [...] */
    $this->fields_form = [
      "legend" => [
        "title" => "",
        "icon" => "icon-list-ul",
      ],
      "input" => [["name" => "image", "label" => "Image", "type" => "file"]],
      "submit" => [
        "title" => $this->trans("Save", [], "Admin.Actions"),
      ],
    ];
  }

  public function processSave()
  {
    parent::processSave();
    // handle file upload
    if (Validate::isLoadedObject($this->object)) {
      $newName = "{$this->object->id}-" . $_FILES["image"]["name"];
      $uploader = new \Uploader("image");
      $uploader->setSavePath(_PS_IMG_DIR_ . "your_dir");
      $files = $uploader->process($newName);
      $this->object->image = $newName;
      $this->object->save();
    }
  }
}