CMedialib::MultiActionDelete

static function MultiActionDelete($Params = array())
{
	global $DB;

	if (is_array($Params['Cols']) && count($Params['Cols']) > 0) // Del collections
	{
		$strCols = "0";
		for($i = 0, $l = count($Params['Cols']); $i < $l; $i++)
		{
			$colId = $Params['Cols'][$i];
			if (CMedialib::CanDoOperation('medialib_del_collection', $colId)) // Access
			{
				$strCols .= ",".intval($colId);
			}
		}

		if ($strCols != "0")
		{
			$strSql = "DELETE FROM b_medialib_collection WHERE ID in (".$strCols.")";
			$z = $DB->Query($strSql, false, "FILE: ".__FILE__."
 LINE: ".__LINE__);

			$strSql = "DELETE FROM b_medialib_collection_item WHERE COLLECTION_ID in (".$strCols.")";
			$z = $DB->Query($strSql, false, "FILE: ".__FILE__."
 LINE: ".__LINE__);
		}
	}

	if (is_array($Params['Items']) && count($Params['Items']) > 0) // Del items
	{
		foreach($Params['Items'] as $colId => $arItems)
		{
			if (!CMedialib::CanDoOperation('medialib_del_item', $colId)) // Access
			{
				return false;
			}

			$strItems = "0";
			for($i = 0, $l = count($arItems); $i < $l; $i++)
			{
				$strItems .= ",".intval($arItems[$i]);
			}

			$strSql = "DELETE FROM b_medialib_collection_item WHERE ITEM_ID IN (".$strItems.") AND COLLECTION_ID=".intval($colId);
			$z = $DB->Query($strSql, false, "FILE: ".__FILE__."
 LINE: ".__LINE__);
		}
	}

	CMedialibItem::DeleteEmpty(); // Del all items which are absent in 'b_medialib_collection_item'
	return true;
}