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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
use MediaWiki\Category\Category;
use MediaWiki\Deferred\DeferredUpdates;
use MediaWiki\MediaWikiServices;
/**
* Special handling for representing category pages.
*/
class WikiCategoryPage extends WikiPage {
/**
* Don't return a 404 for categories in use.
* In use defined as: either the actual page exists
* or the category currently has members.
*
* @return bool
*/
public function hasViewableContent() {
if ( parent::hasViewableContent() ) {
return true;
} else {
$cat = Category::newFromTitle( $this->mTitle );
// If any of these are not 0, then has members
if ( $cat->getMemberCount()
|| $cat->getSubcatCount()
|| $cat->getFileCount()
) {
return true;
}
}
return false;
}
/**
* Checks if a category is hidden.
*
* @since 1.27
* @return bool
*/
public function isHidden() {
$pageId = $this->getTitle()->getArticleID();
$pageProps = MediaWikiServices::getInstance()
->getPageProps()
->getProperties( $this->getTitle(), 'hiddencat' );
return isset( $pageProps[$pageId] );
}
/**
* Checks if a category is expected to be an unused category.
*
* @since 1.33
* @return bool
*/
public function isExpectedUnusedCategory() {
$pageId = $this->getTitle()->getArticleID();
$pageProps = MediaWikiServices::getInstance()
->getPageProps()
->getProperties( $this->getTitle(), 'expectunusedcategory' );
return isset( $pageProps[$pageId] );
}
/**
* Update category counts on purge (T85696)
*
* @return bool
*/
public function doPurge() {
if ( !parent::doPurge() ) {
// Aborted by hook most likely
return false;
}
$title = $this->mTitle;
DeferredUpdates::addCallableUpdate(
static function () use ( $title ) {
$cat = Category::newFromTitle( $title );
// If the category has less than 5000 pages, refresh the counts.
// 5000 was chosen based on the discussion at T85696.
$cat->refreshCountsIfSmall( 5000 );
},
// Explicitly PRESEND so that counts are correct before we try to
// re-render the page on the next load so {{PAGESINCAT:...}} will
// be using the correct new values, not the old ones.
DeferredUpdates::PRESEND
);
return true;
}
}
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