.. ==================================================
.. FOR YOUR INFORMATION
.. --------------------------------------------------
.. -*- coding: utf-8 -*- with BOM.

.. include:: ../Includes.txt


.. _introduction:


Introduction
============

This extension optimises TYPO3 for the multisite operation.

It enables in TYPO3 the so called rootpid idea.

* Tables will be extended with the column rootpid. The column rootpid contains
  the id of the current website.

* While saving a record, the rootpid will be set and updated automatically.

* A cron job enables to update rootpids regularly for example once a day.

* These tables are extended by default:

  * fe_groups

  * fe_users

  * pages

  * sys_category

  * tt_content

Developers can integrate every third party table into multisite.


Advantages of a rootpid
-----------------------

* If you want to know, which news are owned by the current
  website, you need one SQL query only.

* Administrators will see in a TCA form relations of records only, which are
  owned by the current website. See more at Performance below.


Table of Contents
-----------------

.. toctree::
	:maxdepth: 3
	:titlesonly:

	Performance/Index
	WhatDoYouNeed/Index