includes/SpecialAllpages.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  * Entry point : initialise variables and call subfunctions.
  10  * @param string $par ????? (default NULL)
  11  */
  12 function wfSpecialAllpages( $par=NULL ) {
  13         global $indexMaxperpage, $toplevelMaxperpage, $wgRequest, $wgOut, $wgContLang;
  14         # Config
  15         $indexMaxperpage = 480;
  16         $toplevelMaxperpage = 50;
  17         # GET values
  18         $from = $wgRequest->getVal( 'from' );
  19         $namespace = $wgRequest->getInt( 'namespace' );
  20         $invert = $wgRequest->getBool( 'invert' );
  21
  22         $names = $wgContLang->getNamespaces();
  23
  24         if( !isset( $names[$namespace] ) ) {
  25                 $namespace = 0;
  26         }
  27
  28         if ($invert) {
  29                 $wgOut->setPagetitle( $namespace > 0 ?
  30                         wfMsg( 'allnotinnamespace', $names[$namespace] ) :
  31                         wfMsg( 'allnonarticles' )
  32                         );
  33         } else {
  34                 $wgOut->setPagetitle( $namespace > 0 ?
  35                         wfMsg( 'allinnamespace', $names[$namespace] ) :
  36                         wfMsg( 'allarticles' )
  37                         );
  38         }
  39
  40         if ( $par ) {
  41                 indexShowChunk( $namespace, $par, $invert );
  42         } elseif ( $from ) {
  43                 indexShowChunk( $namespace, $from, $invert );
  44         } else {
  45                 indexShowToplevel ( $namespace, $invert );
  46         }
  47 }
  48
  49 /**
  50  * HTML for the top form
  51  * @param integer $namespace A namespace constant (default NS_MAIN).
  52  * @param string $from Article name we are starting listing at.
  53  * @param bool $invert true if we want the namespaces inverted (default false)
  54  */
  55 function namespaceForm ( $namespace = NS_MAIN, $from = '', $invert ) {
  56         global $wgContLang, $wgScript;
  57         $t = Title::makeTitle( NS_SPECIAL, "Allpages" );
  58
  59         $namespaceselect = '<select name="namespace">';
  60         $arr = $wgContLang->getNamespaces();
  61         foreach ( $arr as $ns => $name ) {
  62                 if ( $ns < NS_MAIN ) continue;
  63                 $namespacename = str_replace ( '_', ' ', $name);
  64                 $n = ($ns == 0) ? wfMsg ( 'articlenamespace' ) : $namespacename;
  65                 $sel = ($ns == $namespace) ? ' selected="selected"' : '';
  66                 $namespaceselect .= "<option value='{$ns}'{$sel}>{$n}</option>";
  67         }
  68         $namespaceselect .= '</select>';
  69
  70         $frombox = '<input type="text" size="20" name="from" value="'
  71                     . htmlspecialchars ( $from ) . '"/>';
  72         $submitbutton = '<input type="submit" value="' . wfMsg( 'allpagessubmit' ) . '" />';
  73
  74         $invertbox = "<input type='checkbox' name='invert' value='1'" . ( $invert ? ' checked="checked"' : '' ) . ' />';
  75
  76         $out = "<div class='namespaceselector'><form method='get' action='{$wgScript}'>";
  77         $out .= '<input type="hidden" name="title" value="'.$t->getPrefixedText().'" />';
  78         $out .= wfMsg ( 'allpagesformtext', $frombox, $namespaceselect, $submitbutton, $invertbox );
  79         $out .= '</form></div>';
  80         return $out;
  81 }
  82
  83 /**
  84  * @param integer $namespace (default NS_MAIN)
  85  * @param bool $invert true if we want the namespaces inverted (default false)
  86  */
  87 function indexShowToplevel ( $namespace = NS_MAIN, $invert ) {
  88         global $wgOut, $indexMaxperpage, $toplevelMaxperpage, $wgContLang, $wgRequest, $wgUser;
  89         $sk = $wgUser->getSkin();
  90         $fname = "indexShowToplevel";
  91         $namespace = intval ($namespace);
  92
  93         # TODO: Either make this *much* faster or cache the title index points
  94         # in the querycache table.
  95
  96         $dbr =& wfGetDB( DB_SLAVE );
  97         $page = $dbr->tableName( 'page' );
  98         $invsql = ($invert) ? '!' : '';
  99         $fromwhere = "FROM $page WHERE page_namespace$invsql=$namespace";
 100         $order_arr = array ( 'ORDER BY' => 'page_title' );
 101         $order_str = 'ORDER BY page_title';
 102         $out = "";
 103         $where = array( 'page_namespace' => $namespace );
 104
 105         $count = $dbr->selectField( 'page', 'COUNT(*)', $where, $fname );
 106         $sections = ceil( $count / $indexMaxperpage );
 107
 108         if ( $sections < 3 ) {
 109                 # If there are only two or less sections, don't even display them.
 110                 # Instead, display the first section directly.
 111                 indexShowChunk( $namespace, '', $invert );
 112                 return;
 113         }
 114
 115         # We want to display $toplevelMaxperpage lines starting at $offset.
 116         # NOTICE: $offset starts at 0
 117         $offset = intval ( $wgRequest->getVal( 'offset' ) );
 118         if ( $offset < 0 ) { $offset = 0; }
 119         if ( $offset >= $sections ) { $offset = $sections - 1; }
 120
 121         # Where to stop? Notice that this can take the value of $sections, but $offset can't, because if
 122         # we're displaying only the very last section, we still need two DB queries to find the titles
 123         $stopat = ( $offset + $toplevelMaxperpage < $sections )
 124                   ? $offset + $toplevelMaxperpage : $sections ;
 125
 126         # This array is going to hold the page_titles in order.
 127         $lines = array();
 128
 129         # If we are going to show n rows, we need n+1 queries to find the relevant titles.
 130         for ( $i = $offset; $i <= $stopat; ++$i ) {
 131                 if ( $i == $sections )                  # if we're displaying the last section, we need to
 132                         $from = $count-1;                       # find the last page_title in the DB
 133                 else if ( $i > $offset )
 134                         $from = $i * $indexMaxperpage - 1;
 135                 else
 136                         $from = $i * $indexMaxperpage;
 137                 $limit = ( $i == $offset || $i == $stopat ) ? 1 : 2;
 138                 $sql = "SELECT page_title $fromwhere $order_str " . $dbr->limitResult ( $limit, $from );
 139                 $res = $dbr->query( $sql, $fname );
 140                 $s = $dbr->fetchObject( $res );
 141                 array_push ( $lines, $s->page_title );
 142                 if ( $s = $dbr->fetchObject( $res ) ) {
 143                         array_push ( $lines, $s->page_title );
 144                 }
 145                 $dbr->freeResult( $res );
 146         }
 147
 148         # At this point, $lines should contain an even number of elements.
 149         $out .= "<table style='background: inherit;'>";
 150         while ( count ( $lines ) > 0 ) {
 151                 $inpoint = array_shift ( $lines );
 152                 $outpoint = array_shift ( $lines );
 153                 $out .= indexShowline ( $inpoint, $outpoint, $namespace, $invert );
 154         }
 155         $out .= '</table>';
 156
 157         $nsForm = namespaceForm ( $namespace, '', $invert );
 158
 159         # Is there more?
 160         $morelinks = '';
 161         if ( $offset > 0 ) {
 162                 $morelinks = $sk->makeKnownLink (
 163                         $wgContLang->specialPage ( 'Allpages' ),
 164                         wfMsg ( 'allpagesprev' ),
 165                         ( $offset > $toplevelMaxperpage ) ? 'offset='.($offset-$toplevelMaxperpage) : ''
 166                 );
 167         }
 168         if ( $stopat < $sections-1 ) {
 169                 if ( $morelinks != '' ) { $morelinks .= " | "; }
 170                 $morelinks .= $sk->makeKnownLink (
 171                         $wgContLang->specialPage ( 'Allpages' ),
 172                         wfMsg ( 'allpagesnext' ),
 173                         'offset=' . ($offset + $toplevelMaxperpage)
 174                 );
 175         }
 176
 177         if ( $morelinks != '' ) {
 178                 $out2 = '<table style="background: inherit;" width="100%" cellpadding="0" cellspacing="0" border="0">';
 179                 $out2 .= '<tr valign="top"><td align="left">' . $nsForm;
 180                 $out2 .= '</td><td align="right" style="font-size: smaller; margin-bottom: 1em;">';
 181                 $out2 .= $morelinks . '</td></tr></table><hr />';
 182         } else {
 183                 $out2 = $nsForm . '<hr />';
 184         }
 185
 186         $wgOut->addHtml( $out2 . $out );
 187 }
 188
 189 /**
 190  * @todo Document
 191  * @param string $from
 192  * @param integer $namespace (Default NS_MAIN)
 193  * @param bool $invert true if we want the namespaces inverted (default false)
 194  */
 195 function indexShowline( $inpoint, $outpoint, $namespace = NS_MAIN, $invert ) {
 196         global $wgOut, $wgLang, $wgUser;
 197         $sk = $wgUser->getSkin();
 198         $dbr =& wfGetDB( DB_SLAVE );
 199
 200         $inpointf = htmlspecialchars( str_replace( '_', ' ', $inpoint ) );
 201         $outpointf = htmlspecialchars( str_replace( '_', ' ', $outpoint ) );
 202         $queryparams = ($namespace ? ('namespace='.intval($namespace)) : '') . ($invert ? "&invert=$invert" : '');
 203         $special = Title::makeTitle( NS_SPECIAL, 'Allpages/' . $inpoint );
 204         $link = $special->escapeLocalUrl( $queryparams );
 205
 206         $out = wfMsg(
 207                 'alphaindexline',
 208                 "<a href=\"$link\">$inpointf</a></td><td><a href=\"$link\">",
 209                 "</a></td><td align=\"left\"><a href=\"$link\">$outpointf</a>"
 210         );
 211         return '<tr><td align="right">'.$out.'</td></tr>';
 212 }
 213
 214 /**
 215  * @param integer $namespace (Default NS_MAIN)
 216  * @param string $from list all pages from this name (default FALSE)
 217  * @param bool $invert true if we want the namespaces inverted (default false)
 218  */
 219 function indexShowChunk( $namespace = NS_MAIN, $from, $invert ) {
 220         global $wgOut, $wgUser, $indexMaxperpage, $wgContLang;
 221         $sk = $wgUser->getSkin();
 222         $maxPlusOne = $indexMaxperpage + 1;
 223         $namespacee = intval($namespace);
 224
 225         $out = '';
 226         $dbr =& wfGetDB( DB_SLAVE );
 227         $page = $dbr->tableName( 'page' );
 228
 229         $fromTitle = Title::newFromURL( $from );
 230         $fromKey = is_null( $fromTitle ) ? '' : $fromTitle->getDBkey();
 231
 232         $invsql = ($invert) ? '!' : '';
 233         $sql = "SELECT page_title FROM $page WHERE page_namespace$invsql=$namespacee" .
 234                 " AND page_title >= ".  $dbr->addQuotes( $fromKey ) .
 235                 " ORDER BY page_title LIMIT " . $maxPlusOne;
 236         $res = $dbr->query( $sql, 'indexShowChunk' );
 237
 238         ### FIXME: side link to previous
 239
 240         $n = 0;
 241         $out = '<table style="background: inherit;" border="0" width="100%">';
 242         while( ($n < $indexMaxperpage) && ($s = $dbr->fetchObject( $res )) ) {
 243                 $t = Title::makeTitle( $namespacee, $s->page_title );
 244                 if( $t ) {
 245                         $link = $sk->makeKnownLinkObj( $t, $t->getText() );
 246                 } else {
 247                         $link = '[[' . htmlspecialchars( $s->page_title ) . ']]';
 248                 }
 249                 if( $n % 3 == 0 ) {
 250                         $out .= '<tr>';
 251                 }
 252                 $out .= "<td>$link</td>";
 253                 $n++;
 254                 if( $n % 3 == 0 ) {
 255                         $out .= '</tr>';
 256                 }
 257         }
 258         if( ($n % 3) != 0 ) {
 259                 $out .= '</tr>';
 260         }
 261         $out .= '</table>';
 262
 263         $nsForm = namespaceForm ( $namespace, $from, $invert );
 264         $out2 = '<table style="background: inherit;" width="100%" cellpadding="0" cellspacing="0" border="0">';
 265         $out2 .= '<tr valign="top"><td align="left">' . $nsForm;
 266         $out2 .= '</td><td align="right" style="font-size: smaller; margin-bottom: 1em;">' .
 267                         $sk->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
 268                                 wfMsg ( 'allpages' ) );
 269         if ( ($n == $indexMaxperpage) && ($s = $dbr->fetchObject( $res )) ) {
 270                 $namespaceparam = $namespace ? "&namespace=$namespace" : "";
 271                 $invertparam = $invert ? "&invert=$invert" : '';
 272                 $out2 .= " | " . $sk->makeKnownLink(
 273                         $wgContLang->specialPage( "Allpages" ),
 274                         wfMsg ( 'nextpage', $s->page_title ),
 275                         "from=" . wfUrlEncode ( $s->page_title ) . $namespaceparam . $invertparam );
 276         }
 277         $out2 .= "</td></tr></table><hr />";
 278
 279         $wgOut->addHtml( $out2 . $out );
 280 }
 281
 282 ?>