remove extra whitespace; testing commit notifications

[lhc/web/wiklou.git] / includes / SpecialAllpages.php

diff --git a/includes/SpecialAllpages.php b/includes/SpecialAllpages.php
index 51ef5c9..03e164b 100644 (file)
--- a/includes/SpecialAllpages.php
+++ b/includes/SpecialAllpages.php
@@ -1,13 +1,12 @@
 <?php
 /**
- * @package MediaWiki
- * @subpackage SpecialPage
+ * @addtogroup SpecialPage
  */
 
 /**
  * Entry point : initialise variables and call subfunctions.
  * @param $par String: becomes "FOO" when called like Special:Allpages/FOO (default NULL)
- * @param $specialPage @see SpecialPage object.
+ * @param $specialPage See the SpecialPage object.
  */
 function wfSpecialAllpages( $par=NULL, $specialPage ) {
        global $wgRequest, $wgOut, $wgContLang;
@@ -37,6 +36,10 @@ function wfSpecialAllpages( $par=NULL, $specialPage ) {
        }
 }
 
+/**
+ * Implements Special:Allpages
+ * @addtogroup SpecialPage
+ */
 class SpecialAllpages {
        var $maxPerPage=960;
        var $topLevelMax=50;
@@ -89,7 +92,7 @@ function showToplevel ( $namespace = NS_MAIN, $including = false ) {
        # TODO: Either make this *much* faster or cache the title index points
        # in the querycache table.
 
-       $dbr =& wfGetDB( DB_SLAVE );
+       $dbr = wfGetDB( DB_SLAVE );
        $out = "";
        $where = array( 'page_namespace' => $namespace );
 
@@ -210,13 +213,14 @@ function showChunk( $namespace = NS_MAIN, $from, $including = false ) {
        $sk = $wgUser->getSkin();
 
        $fromList = $this->getNamespaceKeyAndText($namespace, $from);
-
+       $n = 0;
+        
        if ( !$fromList ) {
                $out = wfMsgWikiHtml( 'allpagesbadtitle' );
        } else {
                list( $namespace, $fromKey, $from ) = $fromList;
 
-               $dbr =& wfGetDB( DB_SLAVE );
+               $dbr = wfGetDB( DB_SLAVE );
                $res = $dbr->select( 'page',
                        array( 'page_namespace', 'page_title', 'page_is_redirect' ),
                        array(
@@ -231,9 +235,6 @@ function showChunk( $namespace = NS_MAIN, $from, $including = false ) {
                        )
                );
 
-               ### FIXME: side link to previous
-
-               $n = 0;
                $out = '<table style="background: inherit;" border="0" width="100%">';
 
                while( ($n < $this->maxPerPage) && ($s = $dbr->fetchObject( $res )) ) {
@@ -263,15 +264,57 @@ function showChunk( $namespace = NS_MAIN, $from, $including = false ) {
        if ( $including ) {
                $out2 = '';
        } else {
+               if( $from == '' ) {
+                       // First chunk; no previous link.
+                       $prevTitle = null;
+               } else {
+                       # Get the last title from previous chunk
+                       $dbr = wfGetDB( DB_SLAVE );
+                       $res_prev = $dbr->select(
+                               'page',
+                               'page_title',
+                               array( 'page_namespace' => $namespace, 'page_title < '.$dbr->addQuotes($from) ),
+                               $fname,
+                               array( 'ORDER BY' => 'page_title DESC', 'LIMIT' => $this->maxPerPage, 'OFFSET' => ($this->maxPerPage - 1 ) )
+                       );
+
+                       # Get first title of previous complete chunk
+                       if( $dbr->numrows( $res_prev ) >= $this->maxPerPage ) {
+                               $pt = $dbr->fetchObject( $res_prev );
+                               $prevTitle = Title::makeTitle( $namespace, $pt->page_title );
+                       } else {
+                               # The previous chunk is not complete, need to link to the very first title
+                               # available in the database
+                               $reallyFirstPage_title = $dbr->selectField( 'page', 'page_title', array( 'page_namespace' => $namespace ), $fname, array( 'LIMIT' => 1) );
+
+                               # Show the previous link if it s not the current requested chunk
+                               if( $from != $reallyFirstPage_title ) {
+                                       $prevTitle =  Title::makeTitle( $namespace, $reallyFirstPage_title );
+                               } else {
+                                       $prevTitle = null;
+                               }
+                       }
+               }
+
                $nsForm = $this->namespaceForm ( $namespace, $from );
                $out2 = '<table style="background: inherit;" width="100%" cellpadding="0" cellspacing="0" border="0">';
                $out2 .= '<tr valign="top"><td align="left">' . $nsForm;
                $out2 .= '</td><td align="right" style="font-size: smaller; margin-bottom: 1em;">' .
                                $sk->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
                                        wfMsgHtml ( 'allpages' ) );
-               if ( isset($dbr) && $dbr && ($n == $this->maxPerPage) && ($s = $dbr->fetchObject( $res )) ) {
-                       $t = Title::MakeTitle( $s->page_namespace, $s->page_title );
-                       $self = SpecialPage::getTitleFor( 'Allpages' );
+
+               $self = SpecialPage::getTitleFor( 'Allpages' );
+
+               # Do we put a previous link ?
+               if( isset( $prevTitle ) &&  $pt = $prevTitle->getText() ) {
+                       $q = 'from=' . $prevTitle->getPartialUrl() . ( $namespace ? '&namespace=' . $namespace : '' );
+                       $prevLink = $sk->makeKnownLinkObj( $self, wfMsgHTML( 'prevpage', $pt ), $q );
+                       $out2 .= ' | ' . $prevLink;
+               }
+
+               if( $n == $this->maxPerPage && $s = $dbr->fetchObject($res) ) {
+                       # $s is the first link of the next chunk
+                       $t = Title::MakeTitle($namespace, $s->page_title);
                        $q = 'from=' . $t->getPartialUrl() . ( $namespace ? '&namespace=' . $namespace : '' );
                        $nextLink = $sk->makeKnownLinkObj( $self, wfMsgHtml( 'nextpage', $t->getText() ), $q );
                        $out2 .= ' | ' . $nextLink;
@@ -280,8 +323,15 @@ function showChunk( $namespace = NS_MAIN, $from, $including = false ) {
        }
 
        $wgOut->addHtml( $out2 . $out );
-       if( isset( $nextLink ) )
-               $wgOut->addHtml( '<p style="font-size: smaller; float: right;">' . $nextLink . '</p>' );
+       if( isset($prevLink) or isset($nextLink) ) {
+               $wgOut->addHtml( '<hr/><p style="font-size: smaller; float: right;">' );
+               if( isset( $prevLink ) )
+                       $wgOut->addHTML( $prevLink . ' | ');
+               if( isset( $nextLink ) )
+                       $wgOut->addHTML( $nextLink );
+               $wgOut->addHTML( '</p>' );
+
+       }
        
 }