Help in setting a special page - MediaWiki-l

7 Apr 2008


      Dear all,
I am using MediaWiki 1.12.0 and I am trying to set up a special page
I used the instructions from
http://www.mediawiki.org/wiki/Writing_a_new_special_page
Name of my page is Gauss
my Guass.php file is like
<?php
# Alert the user that this is not a valid entry point to MediaWiki if
they try to access the skin file directly.
if (!defined('MEDIAWIKI')) {
        echo <<<EOT
To install my extension, put the following line in LocalSettings.php:
require_once( "$IP/extensions/Gauss/Gauss.php" );
EOT;
        exit( 1 );
}
$dir = dirname(__FILE__) . '/';
$wgAutoloadClasses['Gauss'] = $dir . 'Gauss_body.php'; # Tell MediaWiki
to load the extension body.
$wgExtensionMessagesFiles['Gauss'] = $dir . 'Gauss.i18n.php';
$wgSpecialPages['Gauss'] = 'Gauss'; # Let MediaWiki know about your new
special page.
$wgHooks['LanguageGetSpecialPageAliases'][] = 'Gauss'; # Add any aliases
for the special page.
function Gauss(&$specialPageArray, $code) {
  # The localized title of the special page is among the messages of the
extension:
  wfLoadExtensionMessages('Gauss');
  $text = wfMsg('Gauss');
# Convert from title in text form to DBKey and put it into the alias
array:
  $title = Title::newFromText($text,'Special');
  $specialPageArray['Gauss'][] = $title->getDBKey();
return true;
}
My Gauss.i18n.php is
<?php
$messages = array();
$messages['en'] = array(
        'Gauss' => 'Gauss'
        );
My Gauss_body.php is
<?php
function efRunGauss( $par ) {
    Gauss::run( $par );
}
class Gauss extends SpecialPage {
        function Gauss() {
                SpecialPage::SpecialPage("Gauss", '', true,
'efRunGauss');
                wfLoadExtensionMessages('Gauss');
        }
function run( $par ) {
                # Do stuff
                # ...
        }
}
I have added the following entry to LocalSettings.php
require_once("extensions/Gauss/Gauss.php");
But when I open my wiki home page 
it gives an error
Fatal error: Call to a member function getDBKey() on a non-object
in /var/www/html/mtsmwiki/extensions/Gauss/Gauss.php on line 25
I have no idea how to get rid of this error. 
I will appreciate any help in this regard. Thanks in advance
-Mike