Backend\Modules\Pages\Actions\Edit::execute PHP Метод

    public function execute()
    {
        parent::execute();
        // load record
        $this->loadData();
        // add js
        $this->header->addJS('jstree/jquery.tree.js', null, false);
        $this->header->addJS('jstree/lib/jquery.cookie.js', null, false);
        $this->header->addJS('jstree/plugins/jquery.tree.cookie.js', null, false);
        // get the templates
        $this->templates = BackendExtensionsModel::getTemplates();
        // set the default template as checked
        $this->templates[$this->record['template_id']]['checked'] = true;
        // homepage?
        if ($this->id == 1) {
            // loop and set disabled state
            foreach ($this->templates as &$row) {
                $row['disabled'] = $row['has_block'];
            }
        }
        // get the extras
        $this->extras = BackendExtensionsModel::getExtras();
        $this->loadForm();
        $this->loadDrafts();
        $this->loadRevisions();
        $this->validateForm();
        $this->parse();
        $this->display();
    }