App\Traits\MenuHandlerTrait::getLeafMenuItem PHP Метод

    public function getLeafMenuItem($leaf = null)
    {
        // Get crumbtrail leaf node from session in case a controller wants to force it.
        // Use session()->pull() to unset/reset the variable after each use.
        if (session()->has('crumbtrail.leaf')) {
            $leaf = session()->pull('crumbtrail.leaf');
        }
        // Get the leaf menu item from the value passed in.
        try {
            $leaf = $this->getMenuItem($leaf);
            return $leaf;
        } catch (MenuBuilderMenuItemNotFoundException $ex) {
            // Eat the exception as we want a chance to find it from the current route.
        }
        // find by current URL...
        $currentUrl = $this->getCurrentUrl();
        $leaf = $this->menuRepository->findBy('url', $currentUrl);
        if ($leaf instanceof Menu) {
            return $leaf;
        }
        // Could not find the requested menu item, throwing an exception.
        throw new MenuBuilderMenuItemNotFoundException("Menu item [" . $leaf . "] not found for URL [" . $currentUrl . "].");
    }