public function getCMSFields($params = array())
{
$fields = new FieldList(DropdownField::create("ProductID", "Product", Product::get()->map()->toArray())->setHasEmptyDefault(true));
$menu = $this->Menu();
if (!$menu->exists()) {
$menu = isset($params["MenuID"]) ? Menu::get()->byID((int) $params["MenuID"]) : null;
}
if ($menu && $menu->exists()) {
$fields->push(DropdownField::create("GroupID", 'Menu Group', MenuGroup::get()->filter("ParentID", $this->MenuID)->map('ID', 'Title')->toArray())->setHasEmptyDefault(true));
}
if ($this->Product()->exists() && !$this->Product()->canPurchase()) {
$fields->push(LiteralField::create("purchasenote", "<p class=\"message warning\">This product can't be purchased, so it won't show up in menus</p>"));
}
return $fields;
}
