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Documentation
=============


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Summary
-------
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This is a version controlled wiki component for the CubicWeb framework.

It uses Mercurial_ as a content storage and can be edited both with your
favorite editor and the web GUI.


Features
--------

The wiki web GUI usage should be pretty straightforward. It can be used to:

* create a page in the wiki from a yet unknown wiki's sub-page URL

* edit an existing page with an optional commit message

* see a page's history and compare versions

* revert a page to a previous version.

`ReStructured Text`_ (ReST) formatted wikis benefit from CubicWeb's powerful
ReST directives that make it easy to query the database and display the
resultset in a view (e.g. `eid`, `rql`, `rql-table`).

Present cube also adds a `wiki` directive, which can be used as in following
example content::

    This is a **formatted page content** with a link to
    :wiki:`subdirectory/page`.
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    This displays a "subdirectory/page" text in the page, that links to URL
    <current-page-url>/subdirectory/page, and which path in the Mercurial
    repository is `<current-page-path>/subdirectory/page.rst`.
    
    You can also specify a link text that is different from the page's URL
    path. The URL path can be specified either from the wiki's root, like
    :wiki:`/subdirectory/other:this one`, or relatively to the current page, like
    :wiki:`current_page_sibling:this other one`.


Wiki setup
----------

Currently, the easiest way to setup a new wiki is through the command line::

    cubicweb-ctl new-vcwiki <instance-name> <wiki-name> <repo-path>

This creates a ReST formatted wiki named *wiki-name* from a pre-existing
Mercurial repository located at *repo-path* on your disk in a pre-existing
CubicWeb application instance named *instance-name*.

You will need the admin user login and password to use this.

An alternative is to use the web GUI, but it requires a few steps until now:
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1. The administrator must create a `Repository` entity and set its `path`
   attribute to a valid path to a Mercurial repository (which must be created
   beforehand).

2. The administrator must add write permissions for the `Repository`, via
   the `localperms` cube (action available at the left of the screen).

3. The administrator must perform a "Refresh repository" action, also available
   at the left of the screen.

4. Create a `VcWiki` entity and set `rst` as default extension.

5. You should be able to create your wiki homepage through the `wiki homepage`
   action on the left.

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Note that the Wiki pages are available at an URL which has the following
format::

    <base-url>/wiki/<wiki-name>/<page-name>


.. _`ReStructured Text`: http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html

.. _Mercurial: http://mercurial.selenic.com/