Create an admin menu in Opencart 4 - opencart

Question

In Opencart4 I am creating a new module. Installed the module and working fine from accessing Admin-> extensions -> modules -> module name -> (then edit).
Now I would like to add a new menu item under the "Catalogue" menu in the admin part.
I have done the following
In module's controller I added
$this->load->model('setting/event');
$this->model_setting_event->deleteEventByCode('MY_EVENT');
$this->model_setting_event->addEvent('MY_EVENT', "",'admin/view/common/column_left/before', 'extension/testimonials/module/testimonials/ADDTOADMINMENU');
ADDTOADMINMENU function in the module's controller looks like
public function ADDTOADMINMENU(&$route, &$data){
/**
* Check if current logged in user has permission to access that link
* Replace "extension/module/MY_EXTENSION" with your target path
* This check can very well be ignored/deleted...
**/
echo "Here";
exit;
if ($this->user->hasPermission('access', 'extension/testimonials/module/testimonials')) {
$my_menu_entry = array(
'id' => 'menu-MY_EXTENSION',
'icon' => 'fa-check',
'name' => 'My menu entry',
'href' => $this->url->link('extension/testimonials/module/testimonials', 'user_token=' . $this->session->data['user_token'], true),
'children' => array()
);
$target_menu_id = 'menu-catalog';
$target_submenu_href = $this->url->link('catalog/product', 'user_token=' . $this->session->data['user_token'], true);
$new_menu = array();
foreach( $data['menus'] as &$menu ) {
if( $menu['id'] == $target_menu_id ) {
$new_submenu = array();
foreach( $menu['children'] as $submenu ) {
if( $submenu['href'] == $target_submenu_href ) {
$new_submenu[] = $my_menu_entry;
$new_submenu[] = $submenu;
} else {
$new_submenu[] = $submenu;
}
}
$menu['children'] = $new_submenu;
$new_menu[] = $menu;
} else {
$new_menu[] = $menu;
}
}
$data['menus'] = $new_menu;
}
}
But not even entering in this function. Is the correct way I am following ?
Please guide.

Answer 1

try this:
$this->model_setting_event->addEvent('MY_EVENT', "",'admin/view/common/column_left/before', 'extension/testimonials/module/testimonials/ADDTOADMINMENU');
replace with:
$this->model_setting_event->addEvent('MY_EVENT', "",'admin/view/common/column_left/before', 'extension/testimonials/module/testimonials|ADDTOADMINMENU');
I have not checked, but OC have changed they framework a bit.

Answer 2

Solution :
Replace
$this->model_setting_event->addEvent('MY_EVENT', "",'admin/view/common/column_left/before', 'extension/testimonials/module/testimonials/ADDTOADMINMENU');
With
$dataEvent = [
'code' => 'MY_EVENT',
'description' => '',
'trigger' => 'admin/view/common/column_left/before',
'action' => 'extension/testimonials/module/testimonials|ADDTOADMINMENU',
'status' => true,
'sort_order' => 0,
];
if (version_compare(VERSION, '4.0.1.0', '>=')) {
$this->model_setting_event->addEvent($dataEvent);
} elseif (version_compare(VERSION, '4.0.0.0', '>=')) {
$this->model_setting_event->addEvent($dataEvent['code'], $dataEvent['description'], $dataEvent['trigger'], $dataEvent['action'], $dataEvent['status'], $dataEvent['sort_order']);
}else {
/* compatibility Opencart 3 */
$dataEvent['trigger']=str_replace("|","/",$dataEvent['trigger']);
$this->model_setting_event->addEvent($dataEvent['code'], $dataEvent['trigger'], $dataEvent['action'], $dataEvent['status'], $dataEvent['sort_order']);
}
Now you can use your code to update also Admin menu on Opencart 3