CAllIBlockProperty::CheckFields

public function CheckFields(&$arFields, $ID=false, $bFormValidate=false)
{
	global $APPLICATION;
	$this->LAST_ERROR = "";
	if ($ID===false || array_key_exists("NAME", $arFields))
	{
		if ($arFields["NAME"] == '')
			$this->LAST_ERROR .= GetMessage("IBLOCK_PROPERTY_BAD_NAME")."
";
	}

	if(array_key_exists("CODE", $arFields) && mb_strlen($arFields["CODE"]))
	{
		if(mb_strpos("0123456789", mb_substr($arFields["CODE"], 0, 1)) !== false)
			$this->LAST_ERROR .= GetMessage("IBLOCK_PROPERTY_CODE_FIRST_LETTER").": ".htmlspecialcharsbx($arFields["CODE"])."
";
		if(preg_match("/[^A-Za-z0-9_]/",  $arFields["CODE"]))
			$this->LAST_ERROR .= GetMessage("IBLOCK_PROPERTY_WRONG_CODE").": ".htmlspecialcharsbx($arFields["CODE"])."
";
	}

	if(!$bFormValidate)
	{
		if($ID===false && !is_set($arFields, "IBLOCK_ID"))
			$this->LAST_ERROR .= GetMessage("IBLOCK_BAD_BLOCK_ID")."
";

		if(is_set($arFields, "IBLOCK_ID"))
		{
			$arFields["IBLOCK_ID"] = (int)$arFields["IBLOCK_ID"];
			$r = CIBlock::GetList(array(), array("ID"=>$arFields["IBLOCK_ID"], "CHECK_PERMISSIONS" => "N"));
			if(!$r->Fetch())
				$this->LAST_ERROR .= GetMessage("IBLOCK_BAD_BLOCK_ID")."
";
		}
	}

	if(isset($arFields["USER_TYPE"]))
	{
		$arUserType = CIBlockProperty::GetUserType($arFields["USER_TYPE"]);
		if(isset($arUserType["CheckFields"]))
		{
			$value=array("VALUE"=>$arFields["DEFAULT_VALUE"]);
			$arError = call_user_func_array($arUserType["CheckFields"],array($arFields,$value));
			if(is_array($arError) && count($arError)>0)
				$this->LAST_ERROR .= implode("
", $arError)."
";
		}
	}

	if(!$bFormValidate)
	{
		$APPLICATION->ResetException();
		if($ID===false)
		{
			$db_events = GetModuleEvents("iblock", "OnBeforeIBlockPropertyAdd", true);
		}
		else
		{
			$arFields["ID"] = $ID;
			$db_events = GetModuleEvents("iblock", "OnBeforeIBlockPropertyUpdate", true);
		}

		foreach($db_events as $arEvent)
		{
			$bEventRes = ExecuteModuleEventEx($arEvent, array(&$arFields));
			if($bEventRes===false)
			{
				if($err = $APPLICATION->GetException())
				{
					$this->LAST_ERROR .= $err->GetString()."
";
				}
				else
				{
					$APPLICATION->ThrowException("Unknown error");
					$this->LAST_ERROR .= "Unknown error.
";
				}
				break;
			}
		}
	}

	if($this->LAST_ERROR <> '')
		return false;

	return true;
}