Where clause not filtering

In my model I have the following two functions:

    public function Children()
{

    return $this->hasMany(Menu::class, 'parent_menu_id', 'id');

}

public function ActiveChildren()
{
    $securityLevel = Auth()->User()->security_level_id;

    $activeChildren = Menu::Children()->where('active_', TRUE)->where('security_level_id', $securityLevel);

    return $activeChildren;

}

Children() returns a list of all Menu items where their parent_menu_id matches the id of this record. This is used in Nova for setup purposes.

With ActiveChildren() I am trying to create a filtered list of items for the actual menu where active_ = TRUE and security_level_id = security level id of the current user.

But instead, ActiveChildren() returns all menu items instead of the filtered set. ActiveChildren populates an array in the following static function:

    public static function Tree()
{

    return static::with(implode('.', array_fill(0, 4, 'ActiveChildren')))->where('menu_type', '=', 'PRT')->get();

}

That is then loaded via the AppServiceProvider whenever the menu is included in a blade file:

public function boot()
{

    view()->composer('desktop.menu.parent', function ($view) {

        $items = Menu::Tree();

        $view->withItems($items);

    });

}

All this works fine, just the menu items are not filtered, any ideas?

via Chebli Mohamed