Merge "mediawiki.less: Use less mixin to reduce code repetition in animation"

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

diff --git a/includes/specials/SpecialAllpages.php b/includes/specials/SpecialAllpages.php
index a082049..1e2d557 100644 (file)
--- a/includes/specials/SpecialAllpages.php
+++ b/includes/specials/SpecialAllpages.php
@@ -49,6 +49,16 @@ class SpecialAllpages extends IncludableSpecialPage {
         */
        protected $maxPageLength = 70;
 
+       /**
+        * Maximum number of pages in a hierarchical ("top level") list.
+        *
+        * Traversal of the entire page list by spidering the top levels is thought
+        * to require O(N^3) DB CPU time where N is the number of pages on the wiki.
+        * See bug 56840. If this limit is exceeded, the behaviour becomes like a
+        * simple alphabetic pager.
+        */
+       protected $maxTopLevelPages = 50000;
+
        /**
         * Determines, which message describes the input field 'nsfrom'.
         *
@@ -113,7 +123,7 @@ class SpecialAllpages extends IncludableSpecialPage {
         */
        function namespaceForm( $namespace = NS_MAIN, $from = '', $to = '', $hideredirects = false ) {
                global $wgScript;
-               $t = $this->getTitle();
+               $t = $this->getPageTitle();
 
                $out = Xml::openElement( 'div', array( 'class' => 'namespaceoptions' ) );
                $out .= Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
@@ -201,6 +211,14 @@ class SpecialAllpages extends IncludableSpecialPage {
                $lines = $wgMemc->get( $key );
 
                $count = $dbr->estimateRowCount( 'page', '*', $where, __METHOD__ );
+
+               // Don't show a hierarchical list if the number of pages is very large,
+               // since generating it will cause a lot of scanning
+               if ( $count > $this->maxTopLevelPages ) {
+                       $this->showChunk( $namespace, $from, $to, $hideredirects );
+                       return;
+               }
+
                $maxPerSubpage = intval( $count / $this->maxLineCount );
                $maxPerSubpage = max( $maxPerSubpage, $this->maxPerPage );
 
@@ -284,7 +302,7 @@ class SpecialAllpages extends IncludableSpecialPage {
                                        $nsForm .
                                        '</td>
                                                        <td class="mw-allpages-nav">' .
-                                       Linker::link( $this->getTitle(), $this->msg( 'allpages' )->escaped(),
+                                       Linker::link( $this->getPageTitle(), $this->msg( 'allpages' )->escaped(),
                                                array(), array(), 'known' ) .
                                        "</td>
                                                </tr>" .
@@ -328,7 +346,7 @@ class SpecialAllpages extends IncludableSpecialPage {
                        $queryParams['hideredirects'] = 1;
                }
 
-               $url = $this->getTitle()->getLocalURL( $queryParams );
+               $url = $this->getPageTitle()->getLocalURL( $queryParams );
                $inlink = Html::element( 'a', array( 'href' => $url ), $inpointf );
                $outlink = Html::element( 'a', array( 'href' => $url ), $outpointf );
 
@@ -462,7 +480,7 @@ class SpecialAllpages extends IncludableSpecialPage {
                                }
                        }
 
-                       $self = $this->getTitle();
+                       $self = $this->getPageTitle();
 
                        $nsForm = $this->namespaceForm( $namespace, $from, $to, $hideredirects );
                        $out2 = Xml::openElement( 'table', array( 'class' => 'mw-allpages-table-form' ) ) .