SectionsList::prepareChildsToSave

public function prepareChildsToSave($sectionId)
{
	$settings = $this->currSectionSettings;
	if (empty($settings))
	{
		return false;
	}

	$sections = $this->getSections();
	$currParentSettings = $this->mappedSections[$sectionId]['PARAMS']['PARENT_SETTINGS'];
	$iblockId = $sections[$sectionId]["IBLOCK_ID"];

	$currLeftMargin = intval($sections[$sectionId]["LEFT_MARGIN"]);
	$currRightMargin = intval($sections[$sectionId]["RIGHT_MARGIN"]);

	$dataToSave = array();
	$dataToDelete = array();

//		if INHERIT changed to true - set parent settings instead settings of current section
//		or if ROOT section, then not enable - delete mapping childs
	$needDelete = false;
	if ($settings["INHERIT"] || (!$sections[$sectionId]["IBLOCK_SECTION_ID"] && !$settings["ENABLE"]))
	{
//			if have not parent settings - needed delete childs
		if (!$currParentSettings)
		{
			$needDelete = true;
		}
		else
		{
			$settings = $currParentSettings;
		}
	}


	foreach ($sections as $section)
	{
//			find CHILDS
		if (
			intval($section["LEFT_MARGIN"]) > $currLeftMargin &&
			intval($section["RIGHT_MARGIN"]) < $currRightMargin &&
			$section["IBLOCK_ID"] == $iblockId
		)
		{
//				only if childs inherit or empty settings
			if ($this->mappedSections[$section["ID"]]["PARAMS"]["INHERIT"] !== false)
			{
//					get childs to delete
				if ($needDelete)
				{
					$dataToDelete[$section["ID"]] = array(
						'VALUE_EXTERNAL' => $settings["VK_CATEGORY"] ? $settings["VK_CATEGORY"] : Vk::VK_CATEGORY_TO_CHANGE,
						'VALUE_INTERNAL' => $section["ID"],
					);
				}

//					get childs to add to mapping
				else
				{
					$dataToSave[$section["ID"]] = array(
						"VALUE_EXTERNAL" => $settings["VK_CATEGORY"] ? $settings["VK_CATEGORY"] : Vk::VK_CATEGORY_TO_CHANGE,
						"VALUE_INTERNAL" => $section["ID"],
						"PARAMS" => array(
							"INHERIT" => true,
							"IBLOCK" => $iblockId,
//								save parent settings for get inherit params in future
							"PARENT_SETTINGS" => array(
								"INHERIT" => false,
								"ENABLE" => $settings["ENABLE"] ? true : false,
								"TO_ALBUM" => $settings["TO_ALBUM"],
								"TO_ALBUM_ALIAS" => $settings["TO_ALBUM_ALIAS"],
								"VK_CATEGORY" => $settings["VK_CATEGORY"],
								"INCLUDE_CHILDS" => $settings["INCLUDE_CHILDS"] ? true : false,
							),
						),
					);
				}
			}
			else
			{
//					if we catch first not inherit child - put parent setting (save other values) to them and end cycle
				$dataToSave[$section["ID"]] = array(
					"VALUE_EXTERNAL" => $this->mappedSections[$section["ID"]]["VK_ID"],
					"VALUE_INTERNAL" => $this->mappedSections[$section["ID"]]["BX_ID"],
					"PARAMS" => $this->mappedSections[$section["ID"]]["PARAMS"],
				);
//					add parent settings to child params if parent section not deleted
				if (!$needDelete)
				{
					$dataToSave[$section["ID"]]["PARAMS"]["PARENT_SETTINGS"] = array(
						"INHERIT" => false,
						"ENABLE" => $settings["ENABLE"] ? true : false,
						"TO_ALBUM" => $settings["TO_ALBUM"],
						"TO_ALBUM_ALIAS" => $settings["TO_ALBUM_ALIAS"],
						"VK_CATEGORY" => $settings["VK_CATEGORY"],
						"INCLUDE_CHILDS" => $settings["INCLUDE_CHILDS"] ? true : false,
					);
				}
				else
				{
					unset($dataToSave[$section["ID"]]["PARAMS"]["PARENT_SETTINGS"]);
				}
			}
		}
	}

	$result = array();
	if (!empty($dataToSave))
	{
		$result['TO_SAVE'] = $dataToSave;
	}

	if (!empty($dataToDelete))
	{
		$result['TO_DELETE'] = $dataToDelete;
	}

	return $result;
}