Extension:Add Article to Category

MediaWiki extensions manual

Add Article to Category Release status: stable
Implementation	Page action
Description	Adds an inputbox (for create new article) to each category page. The content of new page will contain "[[category:]]" automatically.
Author(s)	Liang Chen (BiGreattalk)
Latest version	0.1.9 (2007-01-19)
MediaWiki	1.8+
Database changes	No
License	MIT license
Download	See the code section
Example	kaoshi.wobuxihuan.org
Hooks used EditFormPreloadText CategoryPageView
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The Add Article to Category extension adds the ability to add an inputbox (for create new article) to each category page. The content of new page will contain "[[category:]]" automatically.

Installation

• Copy the code into a file and extract the file(s) in a directory called ArticleToCategory in your extensions/ folder. If you're a developer and this extension is in a Git repository, then instead you should clone the repository.
• Add the following code at the bottom of your LocalSettings.php:

require_once "$IP/extensions/ArticleToCategory/ArticleToCategory.php";

• Done! Navigate to "Special:Version" on your wiki to verify that the extension is successfully installed.

Code

ArticleToCategory.php

<?php
/*--------------------------------------------
A Liang Chen's Extension for MediaWiki
Add Article to Category
Release Date: 2007/01/19
Update Date: 2007/03/09 to 0.1.9, fix a bug in zip file which may cause problem in style.
Contact: [email protected]
Demo: kaoshi.wobuxihuan.org
--------------------------------------------*/

if( !defined( 'MEDIAWIKI' ) ) {
    die();
}

$wgExtensionCredits['other'][] = array(
    'name' => 'Add Article to Category',
    'description' => 'Proviedes an inputbox on each category page that allows to create a new page that is directly put into that category',
    'author' => 'Liang Chen',
     'url' => 'https://www.mediawiki.org/wiki/Extension:Add_Article_to_Category'
);

$wgHooks['EditFormPreloadText'][] = 'addcategory';
$wgHooks['CategoryPageView'][] = 'categorychange';

function addcategory(&$text)
{
    $cname = $_GET['category'];
    $wnew = $_GET['new'];
    global $wgContLang;

    if ($wnew==1)
    {
        $ns = $wgContLang->getFormattedNsText(NS_CATEGORY);
        $text ="Add Your Content Here\r\n\r\n[[$ns:".$cname."]]";
    }
    return true;
}

function categorychange($catpage)
{      
    $boxtext  = "Create an Article in this category";
    $btext = "Submit";
    global $wgOut;
    global $wgScript;  
    $Action = htmlspecialchars( $wgScript );           
       
$temp2=<<<ENDFORM
<!-- Add Article Extension Start -->
<script type="text/javascript">
function clearText(thefield){
if (thefield.defaultValue==thefield.value)
thefield.value = ""
}
function addText(thefield){
        if (thefield.value=="")
        thefield.value = thefield.defaultValue
}
</script>
<table border="0" align="right" width="423" cellspacing="0" cellpadding="0">
<tr>
<td width="100%" align="right" bgcolor="">
<form name="createbox" action="{$Action}" method="get" class="createbox">
        <input type='hidden' name="action" value="edit">
        <input type='hidden' name="new" value="1">
        <input type='hidden' name="category" value="{$catpage->mTitle->getText()}">

        <input class="createboxInput" name="title" type="text" value="{$boxtext}" size="30" style="color:#666;" onfocus="clearText(this);" onblur="addText(this);"/>   
        <input type='submit' name="create" class="createboxButton" value="{$btext}"/>  
</form>
</td>
</tr>
</table>
<!-- Add Article Extension End -->
ENDFORM;
    $wgOut->addHTML($temp2);
        return true;
}

Demo

• I Don't Like Exams (MediaWiki 1.19.0)

Tweaks

If you want the option to not have the box on some pages, see Extension talk:Add Article to Category #Added functionality to exclude some categories

See also

• SimpleForms categorisation example - uses SimpleForms extension to categorise article directly without editing
• CreateArticle

Screenshots

Screenshot 1
Category Page

Screenshot 2
Edit Page