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