将自定义文件添加到后端中的客户（prestashop 1.7.6）

Question

我能够在数据库和前端中添加字段，但是找不到通常的admincustomercontroller.php。有人知道如何进行吗？

我尝试在此链接上关注symfony教程： Add custom field in Prestashop 1.7.6 category with a module. How to save in database?

类Customercustomfields扩展模块     {         保护$ config_form = false;

    public function __construct()
    {
        $this->name = 'customercustomfields';
        $this->tab = 'administration';
        $this->version = '1.0.0';
        $this->author = 'DB';
        $this->need_instance = 0;

        $this->bootstrap = true;

        parent::__construct();

        /*$this->displayName = $this->l('Category Custom Fields');
        $this->description = $this->l('Add custom fields to category');*/
        $this->displayName = $this->l('SDI');
        $this->description = $this->l('SDI');

        $this->ps_versions_compliancy = array('min' => '1.7', 'max' => _PS_VERSION_);
    }

    public function install()
    {
        if (!parent::install()
            // Install Sql du module
            || !$this->_installSql()
            //Installation des hooks
            || !$this->registerHook('actionAdminCustomersControllerSaveAfter')
            || !$this->registerHook('actionAdminCustomersFormModifier')
        ) {
            return false;
        }

        return true;
    }

    public function hookActionCustomFormBuilderModifier(array $params)
    {
        //Récupération du form builder
        /** @var \Symfony\Component\Form\FormBuilder $formBuilder */
        $formBuilder = $params['form_builder'];


        //Ajout de notre champ spécifique
        $formBuilder->add('color',

            \Symfony\Component\Form\Extension\Core\Type\TextType::class,
            [
                'label' => $this->l('SDI'), //Label du champ
                'required' => false, //Requis ou non
                'constraints' => [ //Contraintes du champs

                    new \Symfony\Component\Validator\Constraints\Length([
                        'max' => 20,
                        'maxMessage' => $this->l('Max caracters allowed : 20'),
                    ]),
                ],
                'data' => '' //Valeur du champ
            ]
        );

        $formBuilder->setData($params['data'], $params);
    }

    public function hookActionAfterCreateCategoryFormHandler(array $params)
    {
        $this->updateData($params['form_data'], $params);
    }


    public function hookActionAfterUpdateCategoryFormHandler(array $params)
    {
        $this->updateData($params['form_data'], $params);
    }


  //params not well used but for examples
    protected function updateData(array $data, $params)
    {
        $cat = new Customer((int)$params['id']);
        $cat->SDI= $data['SDI'];
        $cat->update();
        /*$insertData = array(
            'id_category'  => (int)$params['id'],
            'id_lang'  => (int)$this->context->language->id,
            'color'   => $data['color'],
        );
        //Update database
        Db::getInstance()->insert( "ps_category_lang ", $insertData);*/

    }

}