skeeks\cms\models\Tree::init PHP Method

    public function init()
    {
        parent::init();
        $this->on(self::EVENT_BEFORE_INSERT, [$this, 'beforeSaveTree']);
        $this->on(self::EVENT_BEFORE_UPDATE, [$this, 'beforeSaveTree']);
        $this->on(self::EVENT_AFTER_UPDATE, [$this, 'afterUpdateTree']);
        $this->on(self::EVENT_BEFORE_DELETE, [$this, 'beforeDeleteTree']);
        $this->on(self::EVENT_AFTER_DELETE, [$this, 'afterDeleteTree']);
    }