LiveChatManager::update

public function update($fields, $options = [])
{
	$prevConfig = $this->get();

	$update = Array();
	if (isset($fields['URL_CODE_PUBLIC']))
	{
		$fields['URL_CODE_PUBLIC'] = trim($fields['URL_CODE_PUBLIC']);
		if (empty($fields['URL_CODE_PUBLIC']))
		{
			if ($prevConfig['URL_CODE_PUBLIC_ID'] > 0)
			{
				BitrixImAlias::delete($prevConfig['URL_CODE_PUBLIC_ID']);
			}
			$update['URL_CODE_PUBLIC'] = '';
			$update['URL_CODE_PUBLIC_ID'] = 0;
		}
		else
		{
			$fields['URL_CODE_PUBLIC'] = self::prepareAlias($fields['URL_CODE_PUBLIC']);
			if ($prevConfig['URL_CODE_PUBLIC_ID'] > 0)
			{
				if ($prevConfig['URL_CODE_PUBLIC'] != $fields['URL_CODE_PUBLIC'])
				{
					$result = BitrixImAlias::update($prevConfig['URL_CODE_PUBLIC_ID'], Array('ALIAS' => $fields['URL_CODE_PUBLIC']));
					if ($result)
					{
						$update['URL_CODE_PUBLIC'] = $fields['URL_CODE_PUBLIC'];
					}
				}
			}
			else
			{
				$fields['URL_CODE_PUBLIC_ID'] = BitrixImAlias::add(Array(
					'ALIAS' => $fields['URL_CODE_PUBLIC'],
					'ENTITY_TYPE' => BitrixImAlias::ENTITY_TYPE_LIVECHAT,
					'ENTITY_ID' => $this->id
				));
				if ($fields['URL_CODE_PUBLIC_ID'])
				{
					$update['URL_CODE_PUBLIC'] = $fields['URL_CODE_PUBLIC'];
					$update['URL_CODE_PUBLIC_ID'] = $fields['URL_CODE_PUBLIC_ID'];
				}
			}
		}
	}

	if (isset($fields['TEMPLATE_ID']) && in_array($fields['TEMPLATE_ID'], Array(self::TEMPLATE_COLOR, self::TEMPLATE_COLORLESS)))
	{
		$update['TEMPLATE_ID'] = $fields['TEMPLATE_ID'];
	}
	if (isset($fields['CSS_ACTIVE']))
	{
		$update['CSS_ACTIVE'] = $fields['CSS_ACTIVE'] == 'Y'? 'Y': 'N';
	}
	if (isset($fields['BACKGROUND_IMAGE']))
	{
		$update['BACKGROUND_IMAGE'] = intval($fields['BACKGROUND_IMAGE']);
	}
	if (isset($fields['CSS_PATH']))
	{
		$update['CSS_PATH'] = mb_substr($fields['CSS_PATH'], 0, 255);
	}
	if (isset($fields['CSS_TEXT']))
	{
		$update['CSS_TEXT'] = $fields['CSS_TEXT'];
	}
	if (isset($fields['COPYRIGHT_REMOVED']) && Limit::canRemoveCopyright())
	{
		$update['COPYRIGHT_REMOVED'] = $fields['COPYRIGHT_REMOVED'] == 'Y'? 'Y': 'N';
	}
	if (isset($fields['SHOW_SESSION_ID']))
	{
		$update['SHOW_SESSION_ID'] = $fields['SHOW_SESSION_ID'] === 'Y'? 'Y': 'N';
	}
	if (isset($fields['CACHE_WIDGET_ID']))
	{
		$update['CACHE_WIDGET_ID'] = intval($fields['CACHE_WIDGET_ID']);
	}
	if (isset($fields['CACHE_BUTTON_ID']))
	{
		$update['CACHE_BUTTON_ID'] = intval($fields['CACHE_BUTTON_ID']);
	}
	if (isset($fields['PHONE_CODE']))
	{
		$update['PHONE_CODE'] = $fields['PHONE_CODE'];
	}
	if (isset($fields['TEXT_PHRASES']))
	{
		$update['TEXT_PHRASES'] = $fields['TEXT_PHRASES'];
	}

	$result = ModelLivechatTable::update($this->id, $update);
	if ($result->isSuccess())
	{
		if ($this->config)
		{
			foreach ($update as $key => $value)
			{
				$this->config[$key] = $value;
			}
		}
		if (isset($options['CLEAN_CACHE_CONNECTOR']) && BitrixMainLoader::includeModule('imconnector'))
		{
			BitrixImConnectorConnector::cleanCacheConnector(
				$this->id,
				BitrixImConnectorConnector::getCacheIdConnector($this->id, 'livechat')
			);
		}
	}

	return $result->isSuccess();
}