CAllIBlock::Delete

static function Delete($ID)
{
	$err_mess = "FILE: ".__FILE__."
LINE: ";
	/** @global CDatabase $DB */
	global $DB;
	/** @global CMain $APPLICATION */
	global $APPLICATION;
	/** @global CUserTypeManager $USER_FIELD_MANAGER */
	global $USER_FIELD_MANAGER;

	$ID = (int)$ID;
	if ($ID <= 0)
	{
		return false;
	}

	$APPLICATION->ResetException();
	foreach(GetModuleEvents("iblock", "OnBeforeIBlockDelete", true) as $arEvent)
	{
		if(ExecuteModuleEventEx($arEvent, array($ID)) === false)
		{
			$err = GetMessage("MAIN_BEFORE_DEL_ERR").' '.$arEvent['TO_NAME'];
			$ex = $APPLICATION->GetException();
			if(is_object($ex))
				$err .= ': '.$ex->GetString();
			$APPLICATION->throwException($err);
			return false;
		}
	}

	foreach (GetModuleEvents("iblock", "OnIBlockDelete", true) as $arEvent)
		ExecuteModuleEventEx($arEvent, array($ID));

	$iblockSections = CIBlockSection::GetList(Array(), Array(
		"IBLOCK_ID" => $ID,
		"DEPTH_LEVEL" => 1,
		"CHECK_PERMISSIONS" => "N",
	), false, Array("ID"));
	while($iblockSection = $iblockSections->Fetch())
	{
		if(!CIBlockSection::Delete($iblockSection["ID"], false))
			return false;
	}

	$iblockElements = CIBlockElement::GetList(Array(), Array(
		"IBLOCK_ID" => $ID,
		"SHOW_NEW" => "Y",
		"CHECK_PERMISSIONS" => "N",
	), false, false, array("IBLOCK_ID", "ID"));
	while($iblockElement = $iblockElements->Fetch())
	{
		if(!CIBlockElement::Delete($iblockElement["ID"]))
			return false;
	}

	$props = CIBlockProperty::GetList(array(), array(
			"IBLOCK_ID" => $ID,
			"CHECK_PERMISSIONS" =>"N",
	));
	while($property = $props->Fetch())
	{
		if(!CIBlockProperty::Delete($property["ID"]))
			return false;
	}

	CFile::Delete(self::GetArrayByID($ID , "PICTURE"));

	$seq = new CIBlockSequence($ID);
	$seq->Drop(true);

	$obIBlockRights = new CIBlockRights($ID);
	$obIBlockRights->DeleteAllRights();

	$ipropTemplates = new BitrixIblockInheritedPropertyIblockTemplates($ID);
	$ipropTemplates->delete();

	CIBlockSectionPropertyLink::DeleteByIBlock($ID);

	$DB->Query("delete from b_iblock_offers_tmp where PRODUCT_IBLOCK_ID=".$ID, false, $err_mess.__LINE__);
	$DB->Query("delete from b_iblock_offers_tmp where OFFERS_IBLOCK_ID=".$ID, false, $err_mess.__LINE__);

	if(!$DB->Query("DELETE FROM b_iblock_messages WHERE IBLOCK_ID = ".$ID, false, $err_mess.__LINE__))
		return false;

	if(!$DB->Query("DELETE FROM b_iblock_fields WHERE IBLOCK_ID = ".$ID, false, $err_mess.__LINE__))
		return false;

	$USER_FIELD_MANAGER->OnEntityDelete("IBLOCK_".$ID."_SECTION");

	if(!$DB->Query("DELETE FROM b_iblock_group WHERE IBLOCK_ID=".$ID, false, $err_mess.__LINE__))
		return false;
	if(!$DB->Query("DELETE FROM b_iblock_rss WHERE IBLOCK_ID=".$ID, false, $err_mess.__LINE__))
		return false;
	if(!$DB->Query("DELETE FROM b_iblock_site WHERE IBLOCK_ID=".$ID, false, $err_mess.__LINE__))
		return false;
	if(!$DB->Query("DELETE FROM b_iblock WHERE ID=".$ID, false, $err_mess.__LINE__))
		return false;

	$DB->DDL("DROP TABLE b_iblock_element_prop_s".$ID, true, $err_mess.__LINE__);
	$DB->DDL("DROP TABLE b_iblock_element_prop_m".$ID, true, $err_mess.__LINE__);
	$DB->DDL("DROP SEQUENCE sq_b_iblock_element_prop_m".$ID, true, $err_mess.__LINE__);

	CIBlock::CleanCache($ID);

	foreach(GetModuleEvents("iblock", "OnAfterIBlockDelete", true) as $arEvent)
		ExecuteModuleEventEx($arEvent, array($ID));

	self::clearIblockTagCache($ID);

	CDiskQuota::recalculateDb();

	return true;
}