includes/SpecialValidate.php

   1 <?php
   2 # Copyright (C) 2004 Magnus Manske <magnus.manske@web.de>
   3 # http://www.mediawiki.org/
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along
  16 # with this program; if not, write to the Free Software Foundation, Inc.,
  17 # 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 # http://www.gnu.org/copyleft/gpl.html
  19
  20 /**
  21  *
  22  * @package MediaWiki
  23  * @subpackage SpecialPage
  24  */
  25
  26 class Validation {
  27         var $topicList;
  28         var $voteCache;
  29         var $page_id;
  30
  31         function getRevisionFromId( $rev_id ) {
  32                 if( isset( $this->id2rev[$rev_id] ) ) return $this->id2rev[$rev_id];
  33
  34                 $db =& wfGetDB( DB_SLAVE );
  35                 $fname = 'SpecialValidate::getRevisionFromId';
  36                 $res = $db->select( 'revision', '*', array( 'rev_id' => $rev_id ), $fname, array( 'LIMIT' => 1 ) );
  37                 $rev = $db->fetchObject($res);
  38                 $db->freeResult($res);
  39
  40                 $this->id2rev[$rev->rev_id] = $rev;
  41                 $this->ts2rev[$rev->rev_timestamp] = $rev;
  42
  43                 return $rev;
  44         }
  45
  46         function getRevisionFromTimestamp( $timestamp ) {
  47                 if( isset( $this->ts2rev[$timestamp] ) ) return $this->ts2rev[$timestamp];
  48
  49                 $db =& wfGetDB( DB_SLAVE );
  50                 $fname = 'SpecialValidate::getRevisionFromTimestamp';
  51                 $res = $db->select( 'revision', '*',
  52                         array( 'rev_page' => $this->page_id, 'rev_timestamp' => $timestamp ),
  53                         $fname, array( 'LIMIT' => 1 )
  54                 );
  55                 $rev = $db->fetchObject($res);
  56                 $db->freeResult($res);
  57
  58                 $this->id2rev[$rev->rev_id] = $rev;
  59                 $this->ts2rev[$rev->rev_timestamp] = $rev;
  60
  61                 return $rev;
  62         }
  63
  64         # Returns a HTML link to the specified article revision
  65         function getRevisionLink( &$article, $revision, $text = "" ) {
  66                 global $wgUser;
  67                 $sk = $wgUser->getSkin();
  68                 $t = $article->getTitle();
  69                 if( $text == "" ) $text = wfMsg("val_view_version");
  70                 return $sk->makeKnownLinkObj( $t, $this->getParsedWiki($text), 'oldid='.urlencode($revision) );
  71         }
  72
  73         # Returns an array containing all topics you can vote on
  74         function getTopicList() {
  75                 $db =& wfGetDB( DB_SLAVE );
  76
  77                 $topics = array();
  78                 $res = $db->select( 'validate', '*', array( 'val_page' => 0 ), 'SpecialValidate::getTopicList' );
  79                 while( $topic = $db->fetchObject($res) ) {
  80                         $topics[$topic->val_type] = $topic;
  81                 }
  82                 $db->freeResult($res);
  83
  84                 ksort( $topics );
  85                 return $topics;
  86         }
  87
  88         # Merges one dataset into another
  89         function mergeInto( &$source, &$dest ) {
  90                 $ret = false;
  91                 foreach( $source as $x => $y ) {
  92                         $doit = false;
  93                         if( !isset( $dest[$x] ) ) {
  94                                 $doit = true;
  95                         } elseif( $dest[$x]->value == 0 ) {
  96                                 $doit = true;
  97                         }
  98                         if( $doit ) {
  99                                 $dest[$x] = $y;
 100                                 $ret = true;
 101                         }
 102                 }
 103                 if( $ret ) {
 104                         ksort ( $dest );
 105                 }
 106                 return $ret;
 107         }
 108
 109         # Merges all votes prior to the given revision into it
 110         function mergeOldRevisions( &$article, $revision ) {
 111                 $tmp = $this->voteCache;
 112                 krsort( $tmp );
 113                 $update = false;
 114                 $ts = $this->getRevisionTimestamp( $revision );
 115                 $data = $this->voteCache[$ts];
 116                 foreach( $tmp as $x => $y ) {
 117                         if( $x < $ts ) {
 118                                 if( $this->mergeInto( $y, $data ) ) {
 119                                         $update = true;
 120                                 }
 121                         }
 122                 }
 123                 if( $update ) {
 124                         $this->setRevision( $article, $revision, $data );
 125                 }
 126         }
 127
 128         # Clears all votes prior to the given revision
 129         function clearOldRevisions( &$article, $revision ) {
 130                 $tmp = $this->voteCache;
 131                 $ts = $this->getRevisionTimestamp( $revision );
 132                 foreach( $tmp as $x => $y ) {
 133                         if( $x < $ts ) {
 134                                 $this->deleteRevisionVote ( $article, $this->getRevisionId( $x ) );
 135                         }
 136                 }
 137         }
 138
 139         # Updates the votes for the given revision from the FORM data
 140         function updateRevision( &$article, $revision ) {
 141                 global $wgRequest;
 142
 143                 if( isset( $this->voteCache[$this->getRevisionTimestamp( $revision )] ) ) {
 144                         $data = $this->voteCache[$this->getRevisionTimestamp( $revision )];
 145                 } else {
 146                         $data = array();
 147                 }
 148                 $nv = $wgRequest->getArray( "re_v_{$revision}", array() );
 149                 $nc = $wgRequest->getArray( "re_c_{$revision}", array() );
 150
 151                 foreach( $nv as $x => $y ) {
 152                         $data[$x]->value = $y;
 153                         $data[$x]->comment = $nc[$x];
 154                 }
 155                 krsort( $data );
 156
 157                 $this->setRevision( $article, $revision, $data );
 158         }
 159
 160         # Sets a specific revision to both cache and database
 161         function setRevision( &$article, $revision, &$data ) {
 162                 global $wgUser;
 163                 $this->deleteRevisionVote( $article, $revision );
 164                 $this->voteCache[ $this->getRevisionTimestamp($revision) ] = $data;
 165                 foreach( $data as $x => $y ) {
 166                         if( $y->value > 0 ) {
 167                                 $ip = $wgUser->isAnon() ? $wgUser->getName() : '';
 168                                 $dbw =& wfGetDB( DB_MASTER );
 169                                 $dbw->insert( 'validate',
 170                                         array(
 171                                                 'val_user'     => $wgUser->getId(),
 172                                                 'val_page'     => $article->getId(),
 173                                                 'val_revision' => $revision,
 174                                                 'val_type'     => $x,
 175                                                 'val_value'    => $y->value,
 176                                                 'val_comment'  => $y->comment,
 177                                                 'val_ip'       => $ip ),
 178                                         'SpecialValidate::setRevision'
 179                                 );
 180                         }
 181                 }
 182         }
 183
 184         # Returns a map identifying the current user
 185         function identifyUser( $user = "" ) {
 186                 global $wgUser;
 187                 if( $user == "" ) $user = $wgUser->getID();
 188                 return User::isIP($user)
 189                         ? array( 'val_user' => 0, 'val_ip' => $user )
 190                         : array( 'val_user' => $user );
 191         }
 192
 193         # Deletes a specific vote set in both cache and database
 194         function deleteRevisionVote( &$article, $revision ) {
 195                 $ts = $this->getRevisionTimestamp( $revision );
 196                 if( !isset ( $this->voteCache[$ts] ) ) return;
 197
 198                 $db =& wfGetDB( DB_MASTER );
 199                 $db->delete(
 200                         'validate',
 201                         array_merge(
 202                                 $this->identifyUser(),
 203                                 array(
 204                                         'val_page' => $article->getID(),
 205                                         'val_revision' => $revision
 206                                 )
 207                         ),
 208                         'SpecialValidate::deleteRevisionVote'
 209                 );
 210
 211                 unset( $this->voteCache[$ts] );
 212         }
 213
 214         # Reads the entire vote list for this user for the given article
 215         function getVoteList( $id, $user = "" ) {
 216                 $db =& wfGetDB( DB_SLAVE );
 217                 $res = $db->select( 'validate', '*', array_merge( array( 'val_page' => $id ), $this->identifyUser($user) ) );
 218
 219                 $revisions = array();
 220                 while( $vote = $db->fetchObject($res) ) {
 221                         $ts = $this->getRevisionTimestamp( $vote->val_revision );
 222                         if( ! isset( $revisions[$ts] ) ) {
 223                                 $revisions[$ts] = array();
 224                         }
 225                         $revisions[$ts][$vote->val_type]->value = $vote->val_value;
 226                         $revisions[$ts][$vote->val_type]->comment = $vote->val_comment;
 227                 }
 228                 $db->freeResult($res);
 229
 230                 return $revisions;
 231         }
 232
 233         # Reads the entire vote list for this user for all articles
 234         # XXX Should be paged
 235         function getAllVoteLists( $user ) {
 236                 $db =& wfGetDB( DB_SLAVE );
 237                 $res = $db->select( 'validate', '*', $this->identifyUser($user) );
 238
 239                 $votes = array();
 240                 while( $vote = $db->fetchObject($res) ) {
 241                         $votes[$vote->val_page][$vote->val_revision][$vote->val_type] = $vote;
 242                 }
 243                 $db->freeResult($res);
 244
 245                 return $votes;
 246         }
 247
 248         # This functions adds a topic to the database
 249         function addTopic( $topic, $limit ) {
 250                 $db =& wfGetDB( DB_MASTER );
 251
 252                 $next_idx = 1;
 253                 while( isset( $this->topicList[$next_idx] ) ) {
 254                        $next_idx++;
 255                 }
 256
 257                 $db->insert(
 258                         'validate',
 259                         array(
 260                                 'val_user' => 0,
 261                                 'val_page' => 0,
 262                                 'val_revision' => 0,
 263                                 'val_type' => $next_idx,
 264                                 'val_value' => $limit,
 265                                 'val_comment' => $topic,
 266                                 'val_ip' => ''
 267                         ),
 268                         'SpecialValidate::addTopic'
 269                 );
 270
 271                 $t->val_user = $t->val_page = $t->val_revision = 0;
 272                 $t->val_type = $next_idx;
 273                 $t->val_value = $limit;
 274                 $t->val_comment = $topic;
 275                 $t->val_ip = "";
 276                 $this->topicList[$next_idx] = $t;
 277
 278                 ksort( $this->topicList );
 279         }
 280
 281         function deleteTopic( $id ) {
 282                 $db =& wfGetDB( DB_MASTER );
 283                 $db->delete( 'validate', array( 'val_type' => $id ), 'SpecialValidate::deleteTopic' );
 284                 unset( $this->topicList[$id] );
 285         }
 286
 287         # This function returns a link text to the page validation statistics
 288         function getStatisticsLink( &$article ) {
 289                 global $wgUser;
 290                 $sk = $wgUser->getSkin();
 291                 $nt = $article->getTitle();
 292                 return $sk->makeKnownLinkObj( $nt, wfMsg( 'val_rev_stats', $nt->getPrefixedText() ), 'action=validate&mode=list' );
 293         }
 294
 295         # This function returns a link text to the page validation statistics of a single revision
 296         function getRevisionStatsLink( &$article, $revision ) {
 297                 global $wgUser;
 298                 $sk = $wgUser->getSkin();
 299                 $nt = $article->getTitle();
 300                 $text = $this->getParsedWiki( wfMsg('val_revision_stats_link') );
 301                 $query = "action=validate&mode=details&revision={$revision}";
 302                 return '(' . $sk->makeKnownLinkObj( $nt, $text, $query ) . ')';
 303         }
 304
 305         # This function returns a link text to the user rating statistics page
 306         function getUserRatingsLink( $user, $text ) {
 307                 global $wgUser;
 308                 $sk = $wgUser->getSkin();
 309                 if( $user == 0 ) $user = $wgUser->getName();
 310                 $nt = Title::newFromText( 'Special:Validate' );
 311                 return $sk->makeKnownLinkObj( $nt, $text, 'mode=userstats&user='.urlencode($user) );
 312         }
 313
 314         # Returns the timestamp of a revision based on the revision number
 315         function getRevisionTimestamp( $rev_id ) {
 316                 $rev = $this->getRevisionFromId( $rev_id );
 317                 return $rev->rev_timestamp;
 318         }
 319
 320         # Returns the revision number of a revision based on the timestamp
 321         function getRevisionId( $ts ) {
 322                 $rev = $this->getRevisionFromTimestamp( $ts );
 323                 return $rev->rev_id;
 324         }
 325
 326
 327         # HTML generation functions from this point on
 328
 329         # Returns the metadata string for a revision
 330         function getMetadata( $rev_id, &$article ) {
 331                 global $wgUser;
 332                 $sk = $wgUser->getSkin();
 333
 334                 $metadata = "";
 335                 $x = $this->getRevisionFromId($rev_id);
 336                 $metadata .= wfTimestamp( TS_DB, $x->rev_timestamp );
 337                 $metadata .= " by ";
 338                 if( $x->rev_user == 0 ) {
 339                         $metadata .= $x->rev_user_text;
 340                 } else {
 341                         $u = new User;
 342                         $u->setId( $x->rev_user );
 343                         $u->setName( $x->rev_user_text );
 344                         $nt = $u->getUserPage();
 345                         $metadata .= $sk->makeKnownLinkObj( $nt, htmlspecialchars( $nt->getText() ) );
 346                 }
 347                 $metadata .= ': '. $sk->commentBlock( $x->rev_comment, $article->getTitle() );
 348                 return $metadata;
 349         }
 350
 351         # Generates a link to the topic description
 352         function getTopicLink($s) {
 353                 $t = Title::newFromText ( wfMsg ( 'val_topic_desc_page' ) ) ;
 354                 # FIXME: Why doesn't this use standard linking code?
 355                 $r = "<a href=\"" ;
 356                 $r .= $t->escapeLocalURL () ;
 357                 $r .= "#" . urlencode ( $s ) ;
 358                 $r .= "\">{$s}</a>" ;
 359                 return $r ;
 360         }
 361
 362         # Generates HTML from a wiki text, e.g., a wfMsg
 363         function getParsedWiki ( $text ) {
 364                 global $wgOut, $wgTitle, $wgParser ;
 365                 $parserOutput = $wgParser->parse( $text , $wgTitle, $wgOut->mParserOptions,false);
 366                 return $parserOutput->getText() ;
 367         }
 368
 369         # Generates a form for a single revision
 370         function getRevisionForm( &$article, $idx, &$data, $focus = false ) {
 371                 # Fill data with blank values
 372                 $ts = $idx;
 373                 $revision = $this->getRevisionId( $ts );
 374                 foreach( $this->topicList as $x => $y ) {
 375                         if( !isset( $data[$x] ) ) {
 376                                 $data[$x]->value = 0;
 377                                 $data[$x]->comment = "";
 378                         }
 379                 }
 380                 ksort( $data ) ;
 381
 382                 # Generate form
 383                 $table_class = $focus ? 'revisionform_focus' : 'revisionform_default';
 384                 $ret = "<form method='post'><table class='{$table_class}'>\n";
 385                 $head = "Revision #" . $revision;
 386                 $link = $this->getRevisionLink( $article, $revision );
 387                 $metadata = $this->getMetadata( $revision, $article );
 388                 $ret .= "<tr><th colspan='3'>" . $head . " ({$link}) {$metadata}</th></tr>\n";
 389                 $line = 0;
 390                 foreach( $data as $x => $y ) {
 391                         $line = 1 - $line;
 392                         $trclass = $line == 1 ? "revision_tr_first" : "revision_tr_default";
 393                         $idx = "_{$revision}[{$x}]";
 394                         $ret .= "<tr class='{$trclass}'>\n";
 395                         $ret .= "<th>\n";
 396                         $ret .= $this->getTopicLink ( $this->topicList[$x]->val_comment ) ;
 397                         $ret .= "</th>\n";
 398
 399                         $tlx = $this->topicList[$x];
 400                         $vote = "";
 401                         $max = $tlx->val_value;
 402                         for( $a = 0 ; $a <= $max ; $a++ ) {
 403                                 if( $a == 0 ) {
 404                                         $vote .= wfMsg ( "val_noop" );
 405                                 }
 406                                 $vote .= "<input type='radio' name='re_v{$idx}' value='{$a}'";
 407                                 if( $a == $y->value ) {
 408                                         $vote .= " checked='checked'";
 409                                 }
 410                                 $vote .= " />";
 411                                 if( $max == 2 && $a == 1 ) {
 412                                         $vote .= wfMsg( "val_no" ) . " ";
 413                                 } elseif( $max == 2 && $a == 2 ) {
 414                                         $vote .= wfMsg( "val_yes" );
 415                                 } elseif( $a != 0 ) {
 416                                         $vote .= $a . " ";
 417                                 }
 418                                 if ( $a == 0 ) {
 419                                         $vote .= " &nbsp; ";
 420                                 }
 421                         }
 422                         $ret .= "<td>{$vote}</td>\n";
 423
 424                         $ret .= "<td><input size='50' style='width:98%' maxlength='250' type='text' name='re_c{$idx}' value='{$y->comment}'/>";
 425                         $ret .= "</td></tr>\n";
 426                 }
 427                 $checked = $focus ? " checked='checked'" : "";
 428                 $ret .= "<tr><td colspan='3'>\n";
 429                 $ret .= "<input type='checkbox' name='re_merge_{$revision}' value='1'{$checked} />" . $this->getParsedWiki( wfMsg( 'val_merge_old' ) ) . " \n";
 430                 $ret .= "<input type='checkbox' name='re_clear_{$revision}' value='1'{$checked} />" . $this->getParsedWiki( wfMsg( 'val_clear_old' ) ) . " \n";
 431                 $ret .= "<input type='submit' name='re_submit[{$revision}]' value=\"" . wfMsgHtml( "ok" ) . "\" />\n";
 432
 433                 if( $focus ) $ret .= "<br/>\n<small>" . $this->getParsedWiki ( wfMsg( "val_form_note" ) ) . "</small>";
 434                 $ret .= "</td></tr>\n";
 435                 $ret .= "</table></form>\n\n";
 436                 return $ret;
 437         }
 438
 439
 440         # Generates the page from the validation tab
 441         function validatePageForm( &$article, $revision ) {
 442                 global $wgOut, $wgRequest, $wgUser;
 443
 444                 $ret = "";
 445                 $this->page_id = $article->getID();
 446                 $this->topicList = $this->getTopicList();
 447                 $this->voteCache = $this->getVoteList( $article->getID() );
 448
 449                 # Check for POST data
 450                 $re = $wgRequest->getArray( 're_submit' );
 451                 if ( isset( $re ) ) {
 452                         $id = array_keys( $re );
 453                         $id = $id[0] ; # $id is now the revision number the user clicked "OK" for
 454                         $clearOldRev = $wgRequest->getVal( "re_clear_{$id}", 0 );
 455                         $mergeOldRev = $wgRequest->getVal( "re_merge_{$id}", 0 );
 456                         $this->updateRevision( $article, $id );
 457                         if( $mergeOldRev ) {
 458                                 $this->mergeOldRevisions( $article, $id );
 459                         }
 460                         if( $clearOldRev ) {
 461                                 $this->clearOldRevisions( $article, $id );
 462                         }
 463                         $ret .= '<p class="revision_saved">' . $this->getParsedWiki( wfMsg( 'val_revision_changes_ok' ) ) . "</p>";
 464                 } else {
 465                         $ret .= $this->getParsedWiki( wfMsg ('val_votepage_intro') );
 466                 }
 467
 468                 # Make sure the requested revision exists
 469                 $rev = $this->getRevisionFromId($revision);
 470                 $ts = $rev->rev_timestamp;
 471                 if( !isset( $this->voteCache[$ts] ) ) {
 472                         $this->voteCache[$ts] = array();
 473                 }
 474
 475                 # Sort revisions list, newest first
 476                 krsort( $this->voteCache );
 477
 478                 # Output
 479                 $title = $article->getTitle();
 480                 $title = $title->getPrefixedText();
 481                 $wgOut->setPageTitle( wfMsg( 'val_rev_for', $title ) );
 482                 foreach( $this->voteCache as $x => $y ) {
 483                         $ret .= $this->getRevisionForm( $article, $x, $y, $x == $ts );
 484                         $ret .= "<br/>\n";
 485                 }
 486                 $ret .= $this->getStatisticsLink( $article );
 487                 $ret .= "<p>" . $this->getUserRatingsLink( $wgUser->getID(), wfMsg( 'val_show_my_ratings' ) ) . "</p>";
 488                 return $ret ;
 489         }
 490
 491         # This function performs the "management" mode on Special:Validate
 492         function manageTopics() {
 493                 global $wgRequest;
 494                 $this->topicList = $this->getTopicList();
 495
 496                 $iamsure = $wgRequest->getVal( "iamsure", "0" ) == 1;
 497
 498                 if( $iamsure && $wgRequest->getVal( "m_add", "--" ) != "--" ) {
 499                         $new_topic = $wgRequest->getVal( "m_topic" );
 500                         $new_limit = $wgRequest->getVal( "m_limit" );
 501                         if( $new_topic != "" && $new_limit > 1 ) {
 502                                 $this->addTopic( $new_topic, $new_limit );
 503                         }
 504                 }
 505
 506                 $da = $wgRequest->getArray( "m_del" );
 507                 if( $iamsure && isset( $da ) && count( $da ) > 0 ) {
 508                         $id = array_keys( $da );
 509                         $id = array_shift( $id );
 510                         $this->deleteTopic( $id );
 511                 }
 512
 513                 # FIXME: Wikitext this
 514                 $r = "<p>" . $this->getParsedWiki( wfMsg( 'val_warning' ) ) . "</p>\n";
 515                 $r .= "<form method='post'>\n";
 516                 $r .= "<table>\n";
 517                 $r .= "<tr>" . wfMsg( 'val_list_header' ) . "</tr>\n";
 518                 foreach( $this->topicList as $x => $y ) {
 519                         $r .= "<tr>\n";
 520                         $r .= "<th>{$y->val_type}</th>\n";
 521                         $r .= "<td>" . $this->getTopicLink ( $y->val_comment ) . "</td>\n";
 522                         $r .= "<td>1 .. <b>" . intval( $y->val_value ) . "</b></td>\n";
 523                         $r .= "<td><input type='submit' name='m_del[" . intval( $x ) . "]' value='" . htmlspecialchars( wfMsg( 'val_del' ) ) . "'/></td>\n";
 524                         $r .= "</tr>\n";
 525                 }
 526                 $r .= "<tr>\n";
 527                 $r .= "<td></td>\n";
 528                 $r .= '<td><input type="text" name="m_topic" value=""/></td>' . "\n";
 529                 $r .= '<td>1 .. <input type="text" name="m_limit" value="" size="4"/></td>' . "\n";
 530                 $r .= '<td><input type="submit" name="m_add" value="' . htmlspecialchars( wfMsg( 'val_add' ) ) . '"/></td>' . "\n";
 531                 $r .= "</tr></table>\n";
 532                 $r .= '<p><input type="checkbox" name="iamsure" id="iamsure" value="1"/>';
 533                 $r .= '<label for="iamsure">' . $this->getParsedWiki( wfMsg( 'val_iamsure' ) ) . "</label></p>\n";
 534                 $r .= "</form>\n";
 535                 return $r;
 536         }
 537
 538         # Generates an ID for both logged-in users and anons; $res is an object from an SQL query
 539         function make_user_id( &$res ) {
 540                 return $res->val_user == 0 ? $res->val_ip : $res->val_user;
 541         }
 542
 543         function showDetails( &$article, $revision ) {
 544                 global $wgOut, $wgUser;
 545                 $this->page_id = $article->getID();
 546                 $this->topicList = $this->getTopicList();
 547
 548                 $sk = $wgUser->getSkin();
 549                 $title = $article->getTitle();
 550                 $wgOut->setPageTitle( str_replace( '$1', $title->getPrefixedText(), wfMsg( 'val_validation_of' ) ) );
 551
 552                 $data = array();
 553                 $users = array();
 554                 $topics = array();
 555
 556                 # Collecting statistic data
 557                 $db =& wfGetDB( DB_SLAVE );
 558                 $res = $db->select( 'validate', '*', array( 'val_page' => $this->page_id, val_revision => $revision ), 'SpecialValidate::showDetails' );
 559                 while( $x = $db->fetchObject($res) ) {
 560                         $data[$this->make_user_id($x)][$x->val_type] = $x;
 561                         $users[$this->make_user_id($x)] = true;
 562                         $topics[$x->val_type] = true;
 563                 }
 564                 $db->freeResult($res);
 565
 566                 # Sorting lists of topics and users
 567                 ksort( $users );
 568                 ksort( $topics );
 569
 570                 $ts = $this->getRevisionTimestamp( $revision );
 571                 $url = $this->getRevisionLink( $article, $revision, wfTimestamp( TS_DB, $ts ) );
 572
 573                 # Table headers
 574                 $ret = "" ;
 575                 $ret .= "<p><b>" . str_replace( '$1', $url, wfMsg( 'val_revision_of' ) ) . "</b></p>\n";
 576                 $ret .= "<table>\n";
 577                 $ret .= "<tr><th>" . $this->getParsedWiki ( wfMsg('val_details_th') ) . "</th>" ;
 578
 579                 foreach( $topics as $t => $dummy ) {
 580                         $ret .= '<th>' . $sk->commentBlock( $this->topicList[$t]->val_comment, $article->getTitle() ) . '</th>';
 581                 }
 582                 $ret .= "</tr>\n";
 583
 584                 # Table data
 585                 foreach( $users as $u => $dummy ) { # Every row a user
 586                         $ret .= "<tr>";
 587                         $ret .= "<th>";
 588                         if( !User::IsIP( $u ) ) { # Logged-in user rating
 589                                 $ret .= $this->getUserRatingsLink( $u, User::whoIs( $u ) );
 590                         } else { # Anon rating
 591                                 $ret .= $this->getUserRatingsLink( $u, $u );
 592                         }
 593                         $ret .= "</th>";
 594                         foreach( $topics as $t => $dummy ) { # Every column a topic
 595                                 if( !isset( $data[$u][$t] ) ) {
 596                                         $ret .= "<td/>";
 597                                 } else {
 598                                         $ret .= "<td>";
 599                                         $ret .= $data[$u][$t]->val_value;
 600                                         if( $data[$u][$t]->val_comment != "" ) {
 601                                                 $ret .= ' ' . $sk->commentBlock( $data[$u][$t]->val_comment, $article->getTitle() );
 602                                         }
 603                                         $ret .= "</td>";
 604                                 }
 605                         }
 606                         $ret .= "</tr>";
 607                 }
 608                 $ret .= "</table>";
 609                 $ret .= "<p>" . $this->getStatisticsLink( $article ) . "</p>";
 610                 $ret .= "<p>" . $this->getUserRatingsLink( $wgUser->getID(), wfMsg( 'val_show_my_ratings' ) ) . "</p>";
 611
 612                 return $ret;
 613         }
 614
 615         # XXX This should be paged
 616         function showList( &$article ) {
 617                 global $wgOut, $wgUser;
 618                 $this->page_id = $article->getID();
 619                 $this->topicList = $this->getTopicList();
 620
 621                 $title = $article->getTitle();
 622                 $wgOut->setPageTitle( str_replace( '$1', $title->getPrefixedText(), wfMsg( 'val_validation_of' ) ) );
 623
 624                 # Collecting statistic data
 625                 $db =& wfGetDB( DB_SLAVE );
 626                 $res = $db->select( 'validate', '*', array( val_page => $this->page_id ), 'SpecialValidate::showList' );
 627
 628                 $statistics = array();
 629                 while( $vote = $db->fetchObject($res) ) {
 630                         $ts = $this->getRevisionTimestamp($vote->val_revision);
 631                         $statistics[$ts][$vote->val_type]->count++;
 632                         $statistics[$ts][$vote->val_type]->sum += $vote->val_value;
 633                 }
 634                 $db->freeResult($res);
 635
 636                 krsort( $statistics );
 637
 638                 $ret = "<table><tr>\n";
 639                 $ret .= "<th>" . $this->getParsedWiki( wfMsg( "val_revision" ) ) . "</th>\n";
 640                 foreach( $this->topicList as $topic ) {
 641                         $ret .= "<th>" . $this->getTopicLink($topic->val_comment) . "</th>";
 642                 }
 643                 $ret .= "</tr>\n";
 644
 645                 foreach( $statistics as $ts => $data ) {
 646                         $rev_id = $this->getRevisionId( $ts );
 647                         $revision_link = $this->getRevisionLink( $article, $rev_id, wfTimestamp( TS_DB, $ts ) );
 648                         $details_link = $this->getRevisionStatsLink( $article, $rev_id );
 649                         $ret .= "<tr><td>{$revision_link} {$details_link}</td>";
 650                         foreach( $this->topicList as $topicType => $topic ) {
 651                                 if( isset( $data[$topicType] ) ) {
 652                                         $stats = $data[$topicType];
 653                                         $average = $stats->count == 0 ? 0 : $stats->sum / $stats->count;
 654                                         $ret .= sprintf( "<td><b>%1.1f</b> (%d)</td>", $average, $stats->count );
 655                                 } else {
 656                                         $ret .= "<td></td>";
 657                                 }
 658                         }
 659                         $ret .= "</tr>\n";
 660                 }
 661                 $ret .= "</table>\n";
 662                 $ret .= "<p>" . $this->getUserRatingsLink( $wgUser->getID(), wfMsg( 'val_show_my_ratings' ) ) . "</p>";
 663                 return $ret;
 664         }
 665
 666         function getRatingText( $value, $max ) {
 667                 if( $max == 2 && $value == 1 ) {
 668                         $ret = wfMsg ( "val_no" ) . " ";
 669                 } elseif( $max == 2 && $value == 2 ) {
 670                         $ret = wfMsg( "val_yes" );
 671                 } elseif( $value != 0 ) {
 672                         $ret = wfMsg( "val_of", $value, $max ) . " ";
 673                 } else {
 674                         $ret = "";
 675                 }
 676                 return $ret;
 677         }
 678
 679         # XXX This should be paged
 680         function showUserStats( $user ) {
 681                 global $wgOut, $wgUser;
 682                 $this->topicList = $this->getTopicList();
 683                 $data = $this->getAllVoteLists( $user );
 684                 $sk = $wgUser->getSkin();
 685
 686                 if( $user == $wgUser->getID() ) {
 687                         $wgOut->setPageTitle ( wfMsg ( 'val_my_stats_title' ) );
 688                 } elseif( !User::IsIP( $user ) ) {
 689                         $wgOut->setPageTitle( wfMsg( 'val_user_stats_title', User::whoIs( $user ) ) );
 690                 } else {
 691                         $wgOut->setPageTitle( wfMsg( 'val_user_stats_title', $user ) );
 692                 }
 693
 694                 $ret = "<table>\n";
 695                 foreach( $data as $articleid => $revisions ) {
 696                         $title = Title::newFromID( $articleid );
 697                         $ret .= "<tr><th colspan='4'>";
 698                         $ret .= $sk->makeKnownLinkObj( $title, $title->getEscapedText() );
 699                         $ret .= "</th></tr>";
 700                         krsort( $revisions );
 701                         foreach( $revisions as $revid => $revision ) {
 702                                 $url = $title->getLocalURL( "oldid={$revid}" );
 703                                 $ret .= "<tr><th>";
 704                                 $ret .= $sk->makeKnownLinkObj( $title, wfMsg('val_revision_number', $revid ), "oldid={$revid}" );
 705                                 $ret .= "</th>";
 706                                 ksort( $revision );
 707                                 $initial = true;
 708                                 foreach( $revision as $topic => $rating ) {
 709                                         if( !$initial ) {
 710                                                 $ret .= "<tr><td/>";
 711                                         }
 712                                         $initial = false;
 713                                         $ret .= "<td>" . $this->getTopicLink ( $this->topicList[$topic]->val_comment ) . "</td>";
 714                                         $ret .= "<td>" . $this->getRatingText( $rating->val_value, $this->topicList[$topic]->val_value ) . "</td>";
 715                                         $ret .= "<td>" . $sk->commentBlock( $rating->val_comment ) . "</td>";
 716                                         $ret .= "</tr>";
 717                                 }
 718                         }
 719                         $ret .= "</tr>";
 720                 }
 721                 $ret .= "</table>";
 722
 723                 return $ret;
 724         }
 725
 726 }
 727
 728 /**
 729  * constructor
 730  */
 731 function wfSpecialValidate( $page = '' ) {
 732         global $wgOut, $wgRequest, $wgUseValidation, $wgUser, $wgContLang;
 733
 734         if( !$wgUseValidation ) {
 735                 $wgOut->errorpage( "nosuchspecialpage", "nospecialpagetext" );
 736                 return;
 737         }
 738
 739 /*
 740         # Can do?
 741         if( ! $wgUser->isAllowed('change_validation') ) {
 742                 $wgOut->sysopRequired();
 743                 return;
 744         }
 745 */
 746
 747         $mode = $wgRequest->getVal( "mode" );
 748         $skin = $wgUser->getSkin();
 749
 750
 751         if( $mode == "manage" ) {
 752                 $v = new Validation();
 753                 $html = $v->manageTopics();
 754         } elseif( $mode == "userstats" ) {
 755                 $v = new Validation();
 756                 $user = $wgRequest->getVal( "user" );
 757                 $html = $v->showUserStats( $user );
 758         } else {
 759                 $html = "$mode";
 760                 $html .= "<ul>\n";
 761
 762                 $t = Title::newFromText( "Special:Validate" );
 763                 $url = $t->escapeLocalURL( "mode=manage" );
 764                 $html .= "<li><a href=\"" . $url . "\">Manage</a></li>\n";
 765
 766                 $html .= "</ul>\n";
 767         }
 768
 769         $wgOut->addHTML( $html );
 770 }
 771
 772 ?>