* @ingroup SpecialPage
*/
class RandomPage extends SpecialPage {
- private $namespaces; // namespaces to select pages from
+ private $namespaces; // namespaces to select pages from
protected $isRedir = false; // should the result be a redirect?
- protected $extra = array(); // Extra SQL statements
+ protected $extra = []; // Extra SQL statements
- public function __construct( $name = 'Randompage' ){
- global $wgContentNamespaces;
- $this->namespaces = $wgContentNamespaces;
+ public function __construct( $name = 'Randompage' ) {
+ $this->namespaces = MWNamespace::getContentNamespaces();
parent::__construct( $name );
}
return $this->namespaces;
}
- public function setNamespace ( $ns ) {
- if( !$ns || $ns < NS_MAIN ) $ns = NS_MAIN;
- $this->namespaces = array( $ns );
+ public function setNamespace( $ns ) {
+ if ( !$ns || $ns < NS_MAIN ) {
+ $ns = NS_MAIN;
+ }
+ $this->namespaces = [ $ns ];
}
// select redirects instead of normal pages?
- public function isRedirect(){
+ public function isRedirect() {
return $this->isRedir;
}
public function execute( $par ) {
- global $wgOut, $wgContLang, $wgRequest;
+ global $wgContLang;
- if ($par) {
+ if ( is_string( $par ) ) {
+ // Testing for stringiness since we want to catch
+ // the empty string to mean main namespace only.
$this->setNamespace( $wgContLang->getNsIndex( $par ) );
}
$title = $this->getRandomTitle();
- if( is_null( $title ) ) {
+ if ( is_null( $title ) ) {
$this->setHeaders();
- $wgOut->addWikiMsg( strtolower( $this->mName ) . '-nopages',
+ // Message: randompage-nopages, randomredirect-nopages
+ $this->getOutput()->addWikiMsg( strtolower( $this->getName() ) . '-nopages',
$this->getNsList(), count( $this->namespaces ) );
+
return;
}
- $redirectParam = $this->isRedirect() ? array( 'redirect' => 'no' ) : array();
- $query = array_merge( $wgRequest->getValues(), $redirectParam );
+ $redirectParam = $this->isRedirect() ? [ 'redirect' => 'no' ] : [];
+ $query = array_merge( $this->getRequest()->getValues(), $redirectParam );
unset( $query['title'] );
- $wgOut->redirect( $title->getFullUrl( $query ) );
+ $this->getOutput()->redirect( $title->getFullURL( $query ) );
}
/**
* Get a comma-delimited list of namespaces we don't have
* any pages in
- * @return String
+ * @return string
*/
private function getNsList() {
global $wgContLang;
- $nsNames = array();
- foreach( $this->namespaces as $n ) {
- if( $n === NS_MAIN )
- $nsNames[] = wfMsgForContent( 'blanknamespace' );
- else
+ $nsNames = [];
+ foreach ( $this->namespaces as $n ) {
+ if ( $n === NS_MAIN ) {
+ $nsNames[] = $this->msg( 'blanknamespace' )->plain();
+ } else {
$nsNames[] = $wgContLang->getNsText( $n );
+ }
}
+
return $wgContLang->commaList( $nsNames );
}
-
/**
* Choose a random title.
- * @return Title object (or null if nothing to choose from)
+ * @return Title|null Title object (or null if nothing to choose from)
*/
public function getRandomTitle() {
$randstr = wfRandom();
$title = null;
- if ( !wfRunHooks( 'SpecialRandomGetRandomTitle', array( &$randstr, &$this->isRedir, &$this->namespaces, &$this->extra, &$title ) ) ) {
+
+ if ( !Hooks::run(
+ 'SpecialRandomGetRandomTitle',
+ [ &$randstr, &$this->isRedir, &$this->namespaces, &$this->extra, &$title ]
+ ) ) {
return $title;
}
+
$row = $this->selectRandomPageFromDB( $randstr );
/* If we picked a value that was higher than any in
* any more bias than what the page_random scheme
* causes anyway. Trust me, I'm a mathematician. :)
*/
- if( !$row )
+ if ( !$row ) {
$row = $this->selectRandomPageFromDB( "0" );
+ }
- if( $row )
+ if ( $row ) {
return Title::makeTitleSafe( $row->page_namespace, $row->page_title );
- else
- return null;
+ }
+
+ return null;
}
- private function selectRandomPageFromDB( $randstr ) {
- global $wgExtraRandompageSQL;
- $dbr = wfGetDB( DB_SLAVE );
+ protected function getQueryInfo( $randstr ) {
+ $redirect = $this->isRedirect() ? 1 : 0;
+ $tables = [ 'page' ];
+ $conds = array_merge( [
+ 'page_namespace' => $this->namespaces,
+ 'page_is_redirect' => $redirect,
+ 'page_random >= ' . $randstr
+ ], $this->extra );
+ $joinConds = [];
+
+ // Allow extensions to modify the query
+ Hooks::run( 'RandomPageQuery', [ &$tables, &$conds, &$joinConds ] );
+
+ return [
+ 'tables' => $tables,
+ 'fields' => [ 'page_title', 'page_namespace' ],
+ 'conds' => $conds,
+ 'options' => [
+ 'ORDER BY' => 'page_random',
+ 'LIMIT' => 1,
+ ],
+ 'join_conds' => $joinConds
+ ];
+ }
- $use_index = $dbr->useIndexClause( 'page_random' );
- $page = $dbr->tableName( 'page' );
+ private function selectRandomPageFromDB( $randstr, $fname = __METHOD__ ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $query = $this->getQueryInfo( $randstr );
+ $res = $dbr->select(
+ $query['tables'],
+ $query['fields'],
+ $query['conds'],
+ $fname,
+ $query['options'],
+ $query['join_conds']
+ );
- $ns = implode( ",", $this->namespaces );
- $redirect = $this->isRedirect() ? 1 : 0;
-
- if ( $wgExtraRandompageSQL ) {
- $this->extra[] = $wgExtraRandompageSQL;
- }
- if ( $this->addExtraSQL() ) {
- $this->extra[] = $this->addExtraSQL();
- }
- $extra = '';
- if ( $this->extra ) {
- $extra = 'AND (' . implode( ') AND (', $this->extra ) . ')';
- }
- $sql = "SELECT page_title, page_namespace
- FROM $page $use_index
- WHERE page_namespace IN ( $ns )
- AND page_is_redirect = $redirect
- AND page_random >= $randstr
- $extra
- ORDER BY page_random";
-
- $sql = $dbr->limitResult( $sql, 1, 0 );
- $res = $dbr->query( $sql, __METHOD__ );
return $dbr->fetchObject( $res );
}
- /* an alternative to $wgExtraRandompageSQL so subclasses
- * can add their own SQL by overriding this function
- * @deprecated, append to $this->extra instead
- */
- public function addExtraSQL() {
- return '';
+ protected function getGroupName() {
+ return 'redirects';
}
}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff