CCrmProductPropsHelper::ListAddFilterFields

static function ListAddFilterFields($arPropUserTypeList, $arProps, $sFormName, &$arFilter, &$arFilterable,
											&$arCustomFilter, &$arDateFilter)
{
	$i = count($arFilter);
	foreach ($arProps as $propID => $arProp)
	{
		if (!self::CanBeFiltered($arPropUserTypeList, $arProp) ||
			!isset($arProp['FILTRABLE']) || $arProp['FILTRABLE'] !== 'Y')
		{
			continue;
		}

		if (!empty($arProp['USER_TYPE'])
			&& is_array($arPropUserTypeList[$arProp['USER_TYPE']]))
		{
			if (array_key_exists('GetPublicFilterHTML', $arPropUserTypeList[$arProp['USER_TYPE']]))
			{
				$arFilter[$i] = array(
					'id' => $propID,
					'name' => $arProp['NAME'],
					'type' => 'custom',
					'enable_settings' => false,
					'value' => call_user_func_array(
						$arPropUserTypeList[$arProp['USER_TYPE']]['GetPublicFilterHTML'],
						array(
							$arProp,
							array(
								'VALUE'=>$propID,
								'FORM_NAME'=>'filter_'.$sFormName,
								'GRID_ID' => $sFormName,
							),
						)
					),
				);
				$arFilterable[$propID] = ($arProp['PROPERTY_TYPE'] === 'S') ? '?' : '';
				if (array_key_exists('AddFilterFields', $arPropUserTypeList[$arProp['USER_TYPE']]))
					$arCustomFilter[$propID] = array(
						'callback' => $arPropUserTypeList[$arProp['USER_TYPE']]['AddFilterFields'],
						'filter' => &$arFilter[$i],
					);
			}
		}
		else if (empty($arProp['USER_TYPE']))
		{
			if ($arProp["PROPERTY_TYPE"] === "F")
			{
			}
			else if ($arProp["PROPERTY_TYPE"] === "N")
			{
				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
					"type" => "number",
				);
				$arFilterable[$propID] = "";
			}
			else if ($arProp["PROPERTY_TYPE"] === "G")
			{
				$items = array();
				$propSections = CIBlockSection::GetList(array("left_margin" => "asc"), array("IBLOCK_ID" => $arProp["LINK_IBLOCK_ID"]));
				while($arSection = $propSections->Fetch())
					$items[$arSection["ID"]] = str_repeat(". ", $arSection["DEPTH_LEVEL"]-1).$arSection["NAME"];
				unset($propSections, $arSection);

				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
					"type" => "list",
					"items" => $items,
					"params" => array("size"=>5, "multiple"=>"multiple"),
					"valign" => "top",
				);
				$arFilterable[$propID] = "";
			}
			else if ($arProp["PROPERTY_TYPE"] === "E")
			{
				//Should be handled in template
				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
					"type" => "propertyE",
					"value" => ""
				);
				$arFilterable[$propID] = "";
				$arCustomFilter[$propID] = array(
					'type' => 'propertyE',
					'filter' => &$arFilter[$i],
				);
			}
			else if ($arProp["PROPERTY_TYPE"] === "L")
			{
				$items = array();
				$propEnums = CIBlockProperty::GetPropertyEnum($arProp["ID"]);
				while($ar_enum = $propEnums->Fetch())
					$items[$ar_enum["ID"]] = $ar_enum["VALUE"];
				unset($propEnums);

				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
					"type" => "list",
					"items" => $items,
					"params" => array("size"=>5, "multiple"=>"multiple"),
					"valign" => "top",
				);
				$arFilterable[$propID] = "";
			}
			else if ($arProp["PROPERTY_TYPE"] === 'S')
			{
				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
				);
				$arFilterable[$propID] = "?";
			}
			else
			{
				$arFilter[$i] = array(
					"id" => $propID,
					"name" => $arProp["NAME"],
				);
				$arFilterable[$propID] = "";
			}
		}
		$i++;
	}
}