X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2FSpecialWhatlinkshere.php;h=881510c9a8be54787904a8ae7d91172e75e39e5b;hb=114fb4e555eb4e4fb2c8e131a3e2e754bc36f9b9;hp=087b517cebb82e204ccbb526c72a1b2511f61726;hpb=69e546c19c017cd268ede1ed1fc679394b37357b;p=lhc%2Fweb%2Fwiklou.git
diff --git a/includes/SpecialWhatlinkshere.php b/includes/SpecialWhatlinkshere.php
index 087b517ceb..881510c9a8 100644
--- a/includes/SpecialWhatlinkshere.php
+++ b/includes/SpecialWhatlinkshere.php
@@ -1,8 +1,7 @@
execute();
+}
- $target = isset($par) ? $par : $wgRequest->getVal( 'target' );
- list( $limit, $offset ) = $wgRequest->getLimitOffset();
+/**
+ * implements Special:Whatlinkshere
+ * @addtogroup SpecialPage
+ */
+class WhatLinksHerePage {
+ var $request, $par;
+ var $limit, $from, $back, $target;
+ var $selfTitle, $skin;
- if (is_null($target)) {
- $wgOut->errorpage( 'notargettitle', 'notargettext' );
- return;
- }
+ private $namespace;
- $nt = Title::newFromURL( $target );
- if( !$nt ) {
- $wgOut->errorpage( 'notargettitle', 'notargettext' );
- return;
+ function WhatLinksHerePage( &$request, $par = null ) {
+ global $wgUser;
+ $this->request =& $request;
+ $this->skin = $wgUser->getSkin();
+ $this->par = $par;
}
- $wgOut->setPagetitle( $nt->getPrefixedText() );
- $wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
- $sk = $wgUser->getSkin();
- $isredir = ' (' . wfMsg( 'isredirect' ) . ")\n";
+ function execute() {
+ global $wgOut;
- $wgOut->addHTML('< '.$sk->makeLinkObj($nt, '', 'redirect=no' )."
\n");
+ $this->limit = min( $this->request->getInt( 'limit', 50 ), 5000 );
+ if ( $this->limit <= 0 ) {
+ $this->limit = 50;
+ }
+ $this->from = $this->request->getInt( 'from' );
+ $this->back = $this->request->getInt( 'back' );
- wfShowIndirectLinks( 0, $nt, $limit, $offset );
-}
+ $targetString = isset($this->par) ? $this->par : $this->request->getVal( 'target' );
-/**
- * @param int $level
- * @param Title $target
- * @param int $limit
- * @param int $offset
- * @access private
- */
-function wfShowIndirectLinks( $level, $target, $limit, $offset = 0 ) {
- global $wgOut, $wgUser;
- $fname = 'wfShowIndirectLinks';
-
- $dbr =& wfGetDB( DB_READ );
-
- // Read one extra row as an at-end check
- $queryLimit = $limit + 1;
- $limitSql = ( $level == 0 )
- ? "$offset,$queryLimit"
- : $queryLimit;
-
- $res = $dbr->select( array( 'pagelinks', 'page' ),
- array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' ),
- array(
- 'pl_from=page_id',
- 'pl_namespace' => $target->getNamespace(),
- 'pl_title' => $target->getDbKey() ),
- $fname,
- array( 'LIMIT' => $limitSql ) );
+ if ( is_null( $targetString ) ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
+ return;
+ }
- if ( 0 == $dbr->numRows( $res ) ) {
- if ( 0 == $level ) {
- $wgOut->addWikiText( wfMsg( 'nolinkshere' ) );
+ $this->target = Title::newFromURL( $targetString );
+ if( !$this->target ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
+ return;
}
- return;
- }
- if ( 0 == $level ) {
- $wgOut->addWikiText( wfMsg( 'linkshere' ) );
+ $this->selfTitle = Title::makeTitleSafe( NS_SPECIAL,
+ 'Whatlinkshere/' . $this->target->getPrefixedDBkey() );
+
+ $wgOut->setPageTitle( wfMsg( 'whatlinkshere-title', $this->target->getPrefixedText() ) );
+ $wgOut->setSubtitle( wfMsg( 'linklistsub' ) );
+
+ $wgOut->addHTML( wfMsg( 'whatlinkshere-barrow' ) . ' ' .$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."
\n");
+
+ $this->showIndirectLinks( 0, $this->target, $this->limit, $this->from, $this->back );
}
- $sk = $wgUser->getSkin();
- $isredir = ' (' . wfMsg( 'isredirect' ) . ")\n";
- if( $dbr->numRows( $res ) == 0 ) {
- return;
+ /**
+ * @param int $level Recursion level
+ * @param Title $target Target title
+ * @param int $limit Number of entries to display
+ * @param Title $from Display from this article ID
+ * @param Title $back Display from this article ID at backwards scrolling
+ * @private
+ */
+ function showIndirectLinks( $level, $target, $limit, $from = 0, $back = 0 ) {
+ global $wgOut;
+ $fname = 'WhatLinksHerePage::showIndirectLinks';
+ $dbr = wfGetDB( DB_READ );
+ $options = array();
+
+ $ns = $this->request->getIntOrNull( 'namespace' );
+ if ( isset( $ns ) ) {
+ $options['namespace'] = $ns;
+ $this->setNamespace( $options['namespace'] );
+ } else {
+ $options['namespace'] = '';
+ }
+
+ // Make the query
+ $plConds = array(
+ 'page_id=pl_from',
+ 'pl_namespace' => $target->getNamespace(),
+ 'pl_title' => $target->getDBkey(),
+ );
+
+ $tlConds = array(
+ 'page_id=tl_from',
+ 'tl_namespace' => $target->getNamespace(),
+ 'tl_title' => $target->getDBkey(),
+ );
+
+ if ( $this->namespace !== null ){
+ $plConds['page_namespace'] = (int)$this->namespace;
+ $tlConds['page_namespace'] = (int)$this->namespace;
+ }
+
+ if ( $from ) {
+ $from = (int)$from; // just in case
+ $tlConds[] = "tl_from >= $from";
+ $plConds[] = "pl_from >= $from";
+ }
+
+ // Read an extra row as an at-end check
+ $queryLimit = $limit + 1;
+
+ // enforce join order, sometimes namespace selector may
+ // trigger filesorts which are far less efficient than scanning many entries
+ $options[] = 'STRAIGHT_JOIN';
+
+ $options['LIMIT'] = $queryLimit;
+ $fields = array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' );
+
+ $options['ORDER BY'] = 'pl_from';
+ $plRes = $dbr->select( array( 'pagelinks', 'page' ), $fields,
+ $plConds, $fname, $options );
+
+ $options['ORDER BY'] = 'tl_from';
+ $tlRes = $dbr->select( array( 'templatelinks', 'page' ), $fields,
+ $tlConds, $fname, $options );
+
+ if ( !$dbr->numRows( $plRes ) && !$dbr->numRows( $tlRes ) ) {
+ if ( 0 == $level ) {
+ $options = array(); // reinitialize for a further namespace search
+ // really no links to here
+ $options['namespace'] = $this->namespace;
+ $options['target'] = $this->target->getPrefixedText();
+ list( $options['limit'], $options['offset']) = wfCheckLimits();
+ $wgOut->addHTML( $this->whatlinkshereForm( $options ) );
+ $errMsg = isset( $this->namespace ) ? 'nolinkshere-ns' : 'nolinkshere';
+ $wgOut->addWikiText( wfMsg( $errMsg, $this->target->getPrefixedText() ) );
+ }
+ return;
+ }
+
+ $options = array();
+ list( $options['limit'], $options['offset']) = wfCheckLimits();
+ if ( ( $ns = $this->request->getVal( 'namespace', null ) ) !== null && $ns !== '' && ctype_digit($ns) ) {
+ $options['namespace'] = intval( $ns );
+ $this->setNamespace( $options['namespace'] );
+ } else {
+ $options['namespace'] = '';
+ $this->setNamespace( null );
+ }
+ $options['offset'] = $this->request->getVal( 'offset' );
+ /* Offset must be an integral. */
+ if ( !strlen( $options['offset'] ) || !preg_match( '/^[0-9]+$/', $options['offset'] ) )
+ $options['offset'] = '';
+ $options['target'] = $this->target->getPrefixedText();
+
+ // Read the rows into an array and remove duplicates
+ // templatelinks comes second so that the templatelinks row overwrites the
+ // pagelinks row, so we get (inclusion) rather than nothing
+ while ( $row = $dbr->fetchObject( $plRes ) ) {
+ $row->is_template = 0;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $plRes );
+ while ( $row = $dbr->fetchObject( $tlRes ) ) {
+ $row->is_template = 1;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $tlRes );
+
+ // Sort by key and then change the keys to 0-based indices
+ ksort( $rows );
+ $rows = array_values( $rows );
+
+ $numRows = count( $rows );
+
+ // Work out the start and end IDs, for prev/next links
+ if ( $numRows > $limit ) {
+ // More rows available after these ones
+ // Get the ID from the last row in the result set
+ $nextId = $rows[$limit]->page_id;
+ // Remove undisplayed rows
+ $rows = array_slice( $rows, 0, $limit );
+ } else {
+ // No more rows after
+ $nextId = false;
+ }
+ $prevId = $from;
+
+ if ( $level == 0 ) {
+ $wgOut->addHTML( $this->whatlinkshereForm( $options ) );
+ $wgOut->addWikiText( wfMsg( 'linkshere', $this->target->getPrefixedText() ) );
+ }
+ $isredir = wfMsg( 'isredirect' );
+ $istemplate = wfMsg( 'istemplate' );
+
+ if( $level == 0 ) {
+ $prevnext = $this->getPrevNext( $limit, $prevId, $nextId, $options['namespace'] );
+ $wgOut->addHTML( $prevnext );
+ }
+
+ $wgOut->addHTML( '