CIBlockPropertyResult::Fetch

function Fetch()
{
	global $DB;

	if (isset($this->lastRes))
	{
		$res = $this->lastRes;
		$this->lastRes = null;
	}
	else
	{
		$res = parent::Fetch();
	}

	if ($res && isset($res["USER_TYPE"]) && $res["USER_TYPE"]!="")
	{
		$arUserType = CIBlockProperty::GetUserType($res["USER_TYPE"]);
		if (isset($arUserType["ConvertFromDB"]))
		{
			if(array_key_exists("VALUE", $res))
			{
				$value = array("VALUE"=>$res["VALUE"],"DESCRIPTION"=>"");
				$value = call_user_func_array($arUserType["ConvertFromDB"],array($res,$value));
				$res["VALUE"] = $value["VALUE"] ?? null;
			}

			if(array_key_exists("DEFAULT_VALUE", $res))
			{
				$value = array("VALUE"=>$res["DEFAULT_VALUE"],"DESCRIPTION"=>"");
				$value = call_user_func_array($arUserType["ConvertFromDB"],array($res,$value));
				$res["DEFAULT_VALUE"] = $value["VALUE"] ?? null;
			}
		}
		if($res["USER_TYPE_SETTINGS"] <> '')
		{
			$res["USER_TYPE_SETTINGS"] = unserialize($res["USER_TYPE_SETTINGS"], ['allowed_classes' => false]);
		}
	}

	if($res && !empty($this->arProperties))
	{
		$this->initPropertiesValues($res["IBLOCK_ELEMENT_ID"]);
		if ($this->VERSION == 2)
		{
			$arUpdate = array();
			foreach ($this->arProperties as $arProp)
			{
				$field_name = "PROPERTY_".$arProp["ID"];
				if ($arProp["MULTIPLE"] == "Y")
				{
					$descr_name = "DESCRIPTION_".$arProp["ID"];
					$value_id_name = "PROPERTY_VALUE_ID_".$arProp["ID"];

					if(is_object($res[$field_name]))
						$res[$field_name] = $res[$field_name]->load();

					$update = false;
					if($res[$field_name] == '')
					{
						$update = true;
					}
					else
					{
						$tmp = unserialize($res[$field_name], ['allowed_classes' => false]);
						if (!isset($tmp['ID']))
							$update = true;
					}
					if ($update)
					{
						$strSql = "
							SELECT ID, VALUE, DESCRIPTION
							FROM b_iblock_element_prop_m".$arProp["IBLOCK_ID"]."
							WHERE
								IBLOCK_ELEMENT_ID = ".(int)$res["IBLOCK_ELEMENT_ID"]."
								AND IBLOCK_PROPERTY_ID = ".(int)$arProp["ID"]."
							ORDER BY ID
						";
						$rs = $DB->Query($strSql);
						$res[$field_name] = array();
						$res[$descr_name] = array();
						$res[$value_id_name] = array();
						while($ar=$rs->Fetch())
						{
							$res[$field_name][] = $ar["VALUE"];
							$res[$descr_name][] = $ar["DESCRIPTION"];
							$res[$value_id_name][] = $ar['ID'];
						}
						$arUpdate["b_iblock_element_prop_s".$arProp["IBLOCK_ID"]]["PROPERTY_".$arProp["ID"]] = serialize(array("VALUE"=>$res[$field_name],"DESCRIPTION"=>$res[$descr_name],"ID"=>$res[$value_id_name]));
					}
					else
					{
						$res[$field_name] = $tmp["VALUE"];
						$res[$descr_name] = $tmp["DESCRIPTION"];
						$res[$value_id_name] = $tmp["ID"];
					}

					if ($this->extMode)
					{
						foreach ($res[$field_name] as $field_key => $VALUE)
						{
							$this->addPropertyValue($arProp["ID"], $VALUE);
							$this->addPropertyData($arProp["ID"], $res[$value_id_name][$field_key], $res[$descr_name][$field_key]);
						}
					}
					else
					{
						foreach($res[$field_name] as $VALUE)
							$this->addPropertyValue($arProp["ID"], $VALUE);
					}
				}
				else
				{
					if ($res[$field_name] != "")
					{
						if ($this->extMode && $arProp["PROPERTY_TYPE"] == PropertyTable::TYPE_NUMBER)
						{
							$res[$field_name] = CIBlock::NumberFormat($res[$field_name]);
						}
						$this->addPropertyValue($arProp["ID"], $res[$field_name]);
					}
					if ($this->extMode)
					{
						$this->addPropertyData(
							$arProp["ID"],
							$res["IBLOCK_ELEMENT_ID"].':'.$arProp["ID"],
							$res["DESCRIPTION_".$arProp["ID"]] ?? null
						);
					}
				}
			}
			foreach($arUpdate as $strTable=>$arFields)
			{
				$strUpdate = $DB->PrepareUpdate($strTable, $arFields);
				if($strUpdate!="")
				{
					$strSql = "UPDATE ".$strTable." SET ".$strUpdate." WHERE IBLOCK_ELEMENT_ID = ".intval($res["IBLOCK_ELEMENT_ID"]);
					$DB->QueryBind($strSql, $arFields);
				}
			}
			$res = $this->arPropertiesValues;
			if ($this->extMode)
			{
				$res['PROPERTY_VALUE_ID'] = $this->arPropertyValuesID;
				$res['DESCRIPTION'] = $this->arDescriptions;
			}
		}
		else
		{
			do {
				if (isset($this->arProperties[$res["IBLOCK_PROPERTY_ID"]]))
				{
					if ($this->arProperties[$res["IBLOCK_PROPERTY_ID"]]["PROPERTY_TYPE"] == "N" && !$this->extMode)
						$this->addPropertyValue($res["IBLOCK_PROPERTY_ID"], $res["VALUE_NUM"]);
					else
						$this->addPropertyValue($res["IBLOCK_PROPERTY_ID"], $res["VALUE"]);
					if ($this->extMode)
					{
						$this->addPropertyData($res["IBLOCK_PROPERTY_ID"], $res['PROPERTY_VALUE_ID'], $res['DESCRIPTION']);
					}
				}
				$res = parent::Fetch();
			} while ($res && ($res["IBLOCK_ELEMENT_ID"] == $this->arPropertiesValues["IBLOCK_ELEMENT_ID"]));

			$this->lastRes = $res;
			$res = $this->arPropertiesValues;
			$this->arPropertiesValues = array();
			if ($this->extMode)
			{
				$res['PROPERTY_VALUE_ID'] = $this->arPropertyValuesID;
				$res['DESCRIPTION'] = $this->arDescriptions;
				$this->arPropertyValuesID = array();
				$this->arDescriptions = array();
			}
		}
	}

	return $res;
}