Ublaboo\DataGrid\DataGrid::addAction PHP Method

    public function addAction($key, $name, $href = NULL, array $params = NULL)
    {
        $this->addActionCheck($key);
        $href = $href ?: $key;
        if (NULL === $params) {
            $params = [$this->primary_key];
        }
        return $this->actions[$key] = new Column\Action($this, $href, $name, $params);
    }