Extension:PageEval

MediaWiki extensions manual - list

PageEval Release status: beta
Implementation	Parser function
Description	Load a wiki page into another.
Author(s)	Linus Sundqvist
Last version	1.3d (2009-03-26)
MediaWiki	>= 1.8
License	GPL
Download	#Code
Check usage (experimental)

What can this extension do?

Loads a wiki page into another. Custom and language namespaces are supported.

Usage

Usage: {{ #pageeval: page | namespace }}
        page            - Title of page to load, case-insensitive.
        namespace       - (OPTIONAL) In what namespace the page exists, case-insensitive. Default is Main.

Example

Load MediaWiki:Sidebar page.

{{#pageeval:sidebar|mediawiki}}

Load the Mainpage.

{{#pageeval:mainpage}}

Download instructions

Please cut and paste the code found below and place it in $IP/extensions/PageEval/PageEval.php. Note: $IP stands for the root directory of your MediaWiki installation, the same directory that holds LocalSettings.php.

Installation

To install this extension, add the following to LocalSettings.php:

require_once("$IP/extensions/PageEval/PageEval.php");

Configuration parameters

$wgPageEvalConfig['noarticletext'] = true; // true/false - show message that the page doesn't exist
$wgPageEvalConfig['defaultns']     = 0; // numeric - default namespace to use, if entered doesn't exist
$wgPageEvalConfig['showedit']      = true; // true/false - show edit link

Code

<?
/*
 * PageEval
 *     Load a wiki page into another. Custom and language namespaces are supported.
 *
 * Version 1.3d beta (2009-03-26)
 *     http://www.mediawiki.org/wiki/Extension:PageEval
 *     Copyright (c) Linus Sundqvist 2009
 *
 * Usage: {{ #pageeval: page | namespace }}
 *     page          - Title of page to load, case-insensitive.
 *     namespace     - (OPTIONAL) In what namespace the page exists, case-insensitive. Default is Main.
 *
 * Parameters:
 *     $wgPageEvalConfig['noarticletext'] = true; // true/false - show message that the page doesn't exist
 *     $wgPageEvalConfig['defaultns']     = 0; // numeric - default namespace to use, if entered doesn't exist
 *     $wgPageEvalConfig['showedit']      = true; // true/false - show edit link
 * 
 * Released under GPL licence
 *
 * Whats new
 *     1.3d beta
 *         Fixed a few edit link bugs.
 *     1.3c beta
 *         Added edit link and true check for edit rights.
 *
 * Todo
 *     
*/
 
$wgExtensionFunctions[]         = 'wfPageEvalSetup';
$wgHooks['LanguageGetMagic'][]          = 'wfPageEvalGetMagic';
$wgExtensionCredits['parserhook'][]     = array(
        'name' => 'PageEval',
        'author' =>'Linus Sundqvist', 
        'url' => 'http://www.mediawiki.org/wiki/Extension:PageEval', 
        'description' => 'Load a wiki page into another.',
        'version' => '1.3d beta'
);
 
function wfPageEvalSetup() {
        global $wgParser;
        $wgParser->setFunctionHook( 'pageeval', 'wfPageEvalRender' ); // {{#pageeval}}
}
 
function wfPageEvalGetMagic( &$magicWords, $langCode ) {
        $magicWords['pageeval'] = array( 0, 'pageeval' );
        return true;
}
 
function wfPageEvalRender( &$parser, $evalpage = '', $namespace = '' ) {
        $parser->disableCache();
        global $wgPageEvalConfig, $wgTitle, $wgContLang, $wgScriptPath, $mediaWiki, $wgUser;
 
        if ($evalpage <> "")
        {
                if ($namespace <> "" && defined("NS_".strtoupper($namespace)))
                {
                        // Mediawiki or custom namespace
                        $ns = constant("NS_".strtoupper($namespace));
                }
                else if ($namespace <> "")
                {
                        // Language namespace
                        foreach($wgContLang->namespaceNames as $key => $val) {
                                if(strcasecmp($namespace, $val) == 0) $ns = $key;
                        }
                }
 
                // Default namespace
                if (!isset($ns))
                {
                        if (isset($wgPageEvalConfig['defaultns']))
                                $ns = $wgPageEvalConfig['defaultns'];
                        else
                                $ns = 0;
                }
 
                // Media or Special namespace not allowed
                if ($ns < 0)
                        return "";
 
                $namespace = $wgContLang->namespaceNames[$ns];
 
                $dbw =& wfGetDB( DB_MASTER );
 
                extract($dbw->tableNames('text', 'revision', 'page'));
 
                $res = $dbw->query("SELECT old_text FROM $text WHERE old_id =
                        (SELECT rev_text_id FROM $revision r WHERE r.rev_id =
                        (SELECT page_latest FROM $page WHERE UCASE(page_title)='".strtoupper($evalpage)."'
                        AND page_namespace='".$ns."' ORDER BY page_latest DESC LIMIT 1) LIMIT 1)
                        LIMIT 1");
 
                if (stristr($evalpage, "/") != false)
                {
                        for ($i=0; $i<strlen($evalpage); $i++)
                        {
                                if ($evalpage[$i] == "/")
                                {
                                        $evalpage[$i+1] = ucfirst($evalpage[$i+1]);
                                }
                        }
                }
 
                if($dbw->numRows($res) > 0)
                {
                        $row = $dbw->fetchRow($res);
                        $dbw->freeResult($res);
 
                        if (!isset($wgPageEvalConfig['showedit']))
                                $wgPageEvalConfig['showedit'] = true;
 
                        $title = Title::newFromUrl($mediaWiki->params['server']."$wgScriptPath/index.php?title=$evalpage");
 
                        if ($wgPageEvalConfig['showedit'] == true && $title->quickuserCan('edit'))
                        {
                                $row['old_text'] .= "\n\n<small>[[".$mediaWiki->params['server']."$wgScriptPath/index.php?title=";
 
                                if ($namespace <> "")
                                        $row['old_text'] .= ucfirst($namespace).":";
 
                                $row['old_text'] .= ucfirst($evalpage)."&action=edit ".wfMsg('edit')."]]</small>";
                        }
 
                        return $row['old_text'];
                }
                else
                {
                        if (!isset($wgPageEvalConfig['noarticletext']))
                                $wgPageEvalConfig['noarticletext'] = true;
 
                        if ($wgPageEvalConfig['noarticletext'] == true)
                        {
                                if ($namespace <> "")
                                        return str_replace($wgTitle->mTextform, str_replace(" ", "_", ucfirst($namespace).":".ucfirst($evalpage)), wfMsg('noarticletext'));
                                else
                                        return str_replace($wgTitle->mTextform, str_replace(" ", "_", ucfirst($evalpage)), wfMsg('noarticletext'));                                     
                        }
                }
        }
}
?>