SpecialAllMessages.php

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<?php
use MediaWiki\MediaWikiServices;
 
class SpecialAllMessages extends SpecialPage {
 
    public function __construct() {
        parent::__construct( 'Allmessages' );
    }
 
    public function execute( $par ) {
        $out = $this->getOutput();
 
        $this->setHeaders();
 
        if ( !$this->getConfig()->get( 'UseDatabaseMessages' ) ) {
            $out->addWikiMsg( 'allmessagesnotsupportedDB' );
 
            return;
        }
 
        $out->addModuleStyles( 'mediawiki.special' );
        $this->addHelpLink( 'Help:System message' );
 
        $contLang = MediaWikiServices::getInstance()->getContentLanguage()->getCode();
        $lang = $this->getLanguage();
 
        $opts = new FormOptions();
 
        $opts->add( 'prefix', '' );
        $opts->add( 'filter', 'all' );
        $opts->add( 'lang', $contLang );
        $opts->add( 'limit', 50 );
 
        $opts->fetchValuesFromRequest( $this->getRequest() );
        $opts->validateIntBounds( 'limit', 0, 5000 );
 
        $pager = new AllMessagesTablePager( $this->getContext(), $opts );
 
        $formDescriptor = [
            'prefix' => [
                'type' => 'text',
                'name' => 'prefix',
                'label-message' => 'allmessages-prefix',
            ],
 
            'filter' => [
                'type' => 'radio',
                'name' => 'filter',
                'label-message' => 'allmessages-filter',
                'options-messages' => [
                    'allmessages-filter-unmodified' => 'unmodified',
                    'allmessages-filter-all' => 'all',
                    'allmessages-filter-modified' => 'modified',
                ],
                'default' => 'all',
                'flatlist' => true,
            ],
 
            'lang' => [
                'type' => 'language',
                'name' => 'lang',
                'label-message' => 'allmessages-language',
                'default' => $opts->getValue( 'lang' ),
            ],
 
            'limit' => [
                'type' => 'limitselect',
                'name' => 'limit',
                'label-message' => 'table_pager_limit_label',
                'options' => [
                    $lang->formatNum( 20 ) => 20,
                    $lang->formatNum( 50 ) => 50,
                    $lang->formatNum( 100 ) => 100,
                    $lang->formatNum( 250 ) => 250,
                    $lang->formatNum( 500 ) => 500,
                    $lang->formatNum( 5000 ) => 5000,
                ],
                'default' => $opts->getValue( 'limit' ),
            ],
        ];
 
        $htmlForm = HTMLForm::factory( 'ooui', $formDescriptor, $this->getContext() );
        $htmlForm
            ->setMethod( 'get' )
            ->setIntro( $this->msg( 'allmessagestext' ) )
            ->setWrapperLegendMsg( 'allmessages' )
            ->setSubmitTextMsg( 'allmessages-filter-submit' )
            ->prepareForm()
            ->displayForm( false );
 
        $out->addParserOutputContent( $pager->getFullOutput() );
    }
 
    protected function getGroupName() {
        return 'wiki';
    }
}