Hi Tech Geek,
Probably you'll want to start with
http://www.mediawiki.org/wiki/Extensions#Writing_Extensions . There are
several different types of extensions, e.g. special page extensions; hook
extensions; tag extensions; etc. If you're making a special page, for
instance, you can find a simple example called myExtension, utilizing four
files, at
http://www.mediawiki.org/wiki/Manual:Special_pages#Basic_special_page_template.
There is a line in the body file you can uncomment/modify to get it to
output something.
Remember that if you're getting it to say "Hello world," you won't be using
echo("Hello world");, but rather $wgOut->addWikiText("Hello world"); or
perhaps $wgOut->addHTML("Hello world"); (although be careful about XSS
issues if you use addHTML), and that you'll need to have put globals $wgOut;
earlier in the function to bring it into scope.
You are on the right track in looking at simple extensions already existent
as preparation for writing your own. I used
http://www.mediawiki.org/wiki/Extension:RemoveRedlinks to help me figure out
how to write http://www.mediawiki.org/wiki/Extension:RPED (which is still
under development but is being tested at
http://rped.org/wiki/index.php?title=RPED:Sandbox ). I think I also looked
at some of the special pages under includes/specials. Don't forget, when
you're looking up stuff on the Mediawiki site, to check out the categories
(e.g.
http://www.mediawiki.org/wiki/Category:Extensions_by_implementation_type )
and their parent and sister categories, which can often help you find the
documentation and extensions that you're looking for.
When I get SVN access, I'll probably add a "hello world" example extension
for easy download by beginners.
Good luck, -Tisane
On Wed, Mar 10, 2010 at 12:08 PM, Tech Geek <[email protected]> wrote:
> Hi all,
>
> I have been playing with mediawiki for past 6 months and I am getting more
> and more comfortable with it and I like it a lot. Now I am thinking to
> start
> writing extensions for mediawiki starting from very simple (Hello world
> types) extensions. I am familiar with PHP and have done some LAMP based
> database driven websites.
>
> Can someone recommend a good source/pointers from where I can start
> learning
> on how to write extensions? Also I would like to know what is the simplest
> extension (based on lines of code) for mediawiki that is currently
> available
> so that I can look at the source code and learn from it too.
>
> Thanks
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>
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