/**
* @param AbstractDb $collection
* @return AbstractDb
* @throws LocalizedException
*/
protected function applySelection(AbstractDb $collection)
{
$selected = $this->request->getParam(static::SELECTED_PARAM);
$excluded = $this->request->getParam(static::EXCLUDED_PARAM);
if ('false' === $excluded) {
return $collection;
}
try {
if (is_array($excluded) && !empty($excluded)) {
$collection->addFieldToFilter($collection->getIdFieldName(), ['nin' => $excluded]);
} elseif (is_array($selected) && !empty($selected)) {
$collection->addFieldToFilter($collection->getIdFieldName(), ['in' => $selected]);
} else {
throw new LocalizedException(__('Please select item(s).'));
}
} catch (\Exception $e) {
throw new LocalizedException(__($e->getMessage()));
}
return $collection;
}
