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ApiQueryDeletedrevs.php
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1 <?php
27 
35 
36  public function __construct( ApiQuery $query, $moduleName ) {
37  parent::__construct( $query, $moduleName, 'dr' );
38  }
39 
40  public function execute() {
41  // Before doing anything at all, let's check permissions
42  $this->checkUserRightsAny( 'deletedhistory' );
43 
44  $this->addDeprecation( 'apiwarn-deprecation-deletedrevs', 'action=query&list=deletedrevs' );
45 
46  $user = $this->getUser();
47  $db = $this->getDB();
48  $commentStore = CommentStore::getStore();
49  $params = $this->extractRequestParams( false );
50  $prop = array_flip( $params['prop'] );
51  $fld_parentid = isset( $prop['parentid'] );
52  $fld_revid = isset( $prop['revid'] );
53  $fld_user = isset( $prop['user'] );
54  $fld_userid = isset( $prop['userid'] );
55  $fld_comment = isset( $prop['comment'] );
56  $fld_parsedcomment = isset( $prop['parsedcomment'] );
57  $fld_minor = isset( $prop['minor'] );
58  $fld_len = isset( $prop['len'] );
59  $fld_sha1 = isset( $prop['sha1'] );
60  $fld_content = isset( $prop['content'] );
61  $fld_token = isset( $prop['token'] );
62  $fld_tags = isset( $prop['tags'] );
63 
64  // If we're in a mode that breaks the same-origin policy, no tokens can
65  // be obtained
66  if ( $this->lacksSameOriginSecurity() ) {
67  $fld_token = false;
68  }
69 
70  // If user can't undelete, no tokens
71  if ( !$this->getPermissionManager()->userHasRight( $user, 'undelete' ) ) {
72  $fld_token = false;
73  }
74 
75  $result = $this->getResult();
76  $pageSet = $this->getPageSet();
77  $titles = $pageSet->getTitles();
78 
79  // This module operates in three modes:
80  // 'revs': List deleted revs for certain titles (1)
81  // 'user': List deleted revs by a certain user (2)
82  // 'all': List all deleted revs in NS (3)
83  $mode = 'all';
84  if ( count( $titles ) > 0 ) {
85  $mode = 'revs';
86  } elseif ( !is_null( $params['user'] ) ) {
87  $mode = 'user';
88  }
89 
90  if ( $mode == 'revs' || $mode == 'user' ) {
91  // Ignore namespace and unique due to inability to know whether they were purposely set
92  foreach ( [ 'from', 'to', 'prefix', /*'namespace', 'unique'*/ ] as $p ) {
93  if ( !is_null( $params[$p] ) ) {
94  $this->dieWithError( [ 'apierror-deletedrevs-param-not-1-2', $p ], 'badparams' );
95  }
96  }
97  } else {
98  foreach ( [ 'start', 'end' ] as $p ) {
99  if ( !is_null( $params[$p] ) ) {
100  $this->dieWithError( [ 'apierror-deletedrevs-param-not-3', $p ], 'badparams' );
101  }
102  }
103  }
104 
105  if ( !is_null( $params['user'] ) && !is_null( $params['excludeuser'] ) ) {
106  $this->dieWithError( 'user and excludeuser cannot be used together', 'badparams' );
107  }
108 
109  $revisionStore = MediaWikiServices::getInstance()->getRevisionStore();
110  $arQuery = $revisionStore->getArchiveQueryInfo();
111  $this->addTables( $arQuery['tables'] );
112  $this->addFields( $arQuery['fields'] );
113  $this->addJoinConds( $arQuery['joins'] );
114  $this->addFields( [ 'ar_title', 'ar_namespace' ] );
115 
116  if ( $fld_tags ) {
117  $this->addFields( [ 'ts_tags' => ChangeTags::makeTagSummarySubquery( 'archive' ) ] );
118  }
119 
120  if ( !is_null( $params['tag'] ) ) {
121  $this->addTables( 'change_tag' );
122  $this->addJoinConds(
123  [ 'change_tag' => [ 'JOIN', [ 'ar_rev_id=ct_rev_id' ] ] ]
124  );
125  $changeTagDefStore = MediaWikiServices::getInstance()->getChangeTagDefStore();
126  try {
127  $this->addWhereFld( 'ct_tag_id', $changeTagDefStore->getId( $params['tag'] ) );
128  } catch ( NameTableAccessException $exception ) {
129  // Return nothing.
130  $this->addWhere( '1=0' );
131  }
132  }
133 
134  // This means stricter restrictions
135  if ( $fld_content ) {
136  $this->checkUserRightsAny( [ 'deletedtext', 'undelete' ] );
137  }
138  // Check limits
139  $userMax = $fld_content ? ApiBase::LIMIT_SML1 : ApiBase::LIMIT_BIG1;
140  $botMax = $fld_content ? ApiBase::LIMIT_SML2 : ApiBase::LIMIT_BIG2;
141 
142  $limit = $params['limit'];
143 
144  if ( $limit == 'max' ) {
145  $limit = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
146  $this->getResult()->addParsedLimit( $this->getModuleName(), $limit );
147  }
148 
149  $this->validateLimit( 'limit', $limit, 1, $userMax, $botMax );
150 
151  if ( $fld_token ) {
152  // Undelete tokens are identical for all pages, so we cache one here
153  $token = $user->getEditToken( '', $this->getMain()->getRequest() );
154  }
155 
156  $dir = $params['dir'];
157 
158  // We need a custom WHERE clause that matches all titles.
159  if ( $mode == 'revs' ) {
160  $lb = new LinkBatch( $titles );
161  $where = $lb->constructSet( 'ar', $db );
162  $this->addWhere( $where );
163  } elseif ( $mode == 'all' ) {
164  $this->addWhereFld( 'ar_namespace', $params['namespace'] );
165 
166  $from = $params['from'] === null
167  ? null
168  : $this->titlePartToKey( $params['from'], $params['namespace'] );
169  $to = $params['to'] === null
170  ? null
171  : $this->titlePartToKey( $params['to'], $params['namespace'] );
172  $this->addWhereRange( 'ar_title', $dir, $from, $to );
173 
174  if ( isset( $params['prefix'] ) ) {
175  $this->addWhere( 'ar_title' . $db->buildLike(
176  $this->titlePartToKey( $params['prefix'], $params['namespace'] ),
177  $db->anyString() ) );
178  }
179  }
180 
181  if ( !is_null( $params['user'] ) ) {
182  // Don't query by user ID here, it might be able to use the ar_usertext_timestamp index.
183  $actorQuery = ActorMigration::newMigration()
184  ->getWhere( $db, 'ar_user', User::newFromName( $params['user'], false ), false );
185  $this->addTables( $actorQuery['tables'] );
186  $this->addJoinConds( $actorQuery['joins'] );
187  $this->addWhere( $actorQuery['conds'] );
188  } elseif ( !is_null( $params['excludeuser'] ) ) {
189  // Here there's no chance of using ar_usertext_timestamp.
190  $actorQuery = ActorMigration::newMigration()
191  ->getWhere( $db, 'ar_user', User::newFromName( $params['excludeuser'], false ) );
192  $this->addTables( $actorQuery['tables'] );
193  $this->addJoinConds( $actorQuery['joins'] );
194  $this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' );
195  }
196 
197  if ( !is_null( $params['user'] ) || !is_null( $params['excludeuser'] ) ) {
198  // Paranoia: avoid brute force searches (T19342)
199  // (shouldn't be able to get here without 'deletedhistory', but
200  // check it again just in case)
201  if ( !$this->getPermissionManager()->userHasRight( $user, 'deletedhistory' ) ) {
202  $bitmask = RevisionRecord::DELETED_USER;
203  } elseif ( !$this->getPermissionManager()
204  ->userHasAnyRight( $user, 'suppressrevision', 'viewsuppressed' )
205  ) {
206  $bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED;
207  } else {
208  $bitmask = 0;
209  }
210  if ( $bitmask ) {
211  $this->addWhere( $db->bitAnd( 'ar_deleted', $bitmask ) . " != $bitmask" );
212  }
213  }
214 
215  if ( !is_null( $params['continue'] ) ) {
216  $cont = explode( '|', $params['continue'] );
217  $op = ( $dir == 'newer' ? '>' : '<' );
218  if ( $mode == 'all' || $mode == 'revs' ) {
219  $this->dieContinueUsageIf( count( $cont ) != 4 );
220  $ns = (int)$cont[0];
221  $this->dieContinueUsageIf( strval( $ns ) !== $cont[0] );
222  $title = $db->addQuotes( $cont[1] );
223  $ts = $db->addQuotes( $db->timestamp( $cont[2] ) );
224  $ar_id = (int)$cont[3];
225  $this->dieContinueUsageIf( strval( $ar_id ) !== $cont[3] );
226  $this->addWhere( "ar_namespace $op $ns OR " .
227  "(ar_namespace = $ns AND " .
228  "(ar_title $op $title OR " .
229  "(ar_title = $title AND " .
230  "(ar_timestamp $op $ts OR " .
231  "(ar_timestamp = $ts AND " .
232  "ar_id $op= $ar_id)))))" );
233  } else {
234  $this->dieContinueUsageIf( count( $cont ) != 2 );
235  $ts = $db->addQuotes( $db->timestamp( $cont[0] ) );
236  $ar_id = (int)$cont[1];
237  $this->dieContinueUsageIf( strval( $ar_id ) !== $cont[1] );
238  $this->addWhere( "ar_timestamp $op $ts OR " .
239  "(ar_timestamp = $ts AND " .
240  "ar_id $op= $ar_id)" );
241  }
242  }
243 
244  $this->addOption( 'LIMIT', $limit + 1 );
245  if ( $mode == 'all' ) {
246  if ( $params['unique'] ) {
247  // @todo Does this work on non-MySQL?
248  $this->addOption( 'GROUP BY', 'ar_title' );
249  } else {
250  $sort = ( $dir == 'newer' ? '' : ' DESC' );
251  $this->addOption( 'ORDER BY', [
252  'ar_title' . $sort,
253  'ar_timestamp' . $sort,
254  'ar_id' . $sort,
255  ] );
256  }
257  } else {
258  if ( $mode == 'revs' ) {
259  // Sort by ns and title in the same order as timestamp for efficiency
260  $this->addWhereRange( 'ar_namespace', $dir, null, null );
261  $this->addWhereRange( 'ar_title', $dir, null, null );
262  }
263  $this->addTimestampWhereRange( 'ar_timestamp', $dir, $params['start'], $params['end'] );
264  // Include in ORDER BY for uniqueness
265  $this->addWhereRange( 'ar_id', $dir, null, null );
266  }
267  $res = $this->select( __METHOD__ );
268  $pageMap = []; // Maps ns&title to (fake) pageid
269  $count = 0;
270  $newPageID = 0;
271  foreach ( $res as $row ) {
272  if ( ++$count > $limit ) {
273  // We've had enough
274  if ( $mode == 'all' || $mode == 'revs' ) {
275  $this->setContinueEnumParameter( 'continue',
276  "$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id"
277  );
278  } else {
279  $this->setContinueEnumParameter( 'continue', "$row->ar_timestamp|$row->ar_id" );
280  }
281  break;
282  }
283 
284  $rev = [];
285  $anyHidden = false;
286 
287  $rev['timestamp'] = wfTimestamp( TS_ISO_8601, $row->ar_timestamp );
288  if ( $fld_revid ) {
289  $rev['revid'] = (int)$row->ar_rev_id;
290  }
291  if ( $fld_parentid && !is_null( $row->ar_parent_id ) ) {
292  $rev['parentid'] = (int)$row->ar_parent_id;
293  }
294  if ( $fld_user || $fld_userid ) {
295  if ( $row->ar_deleted & RevisionRecord::DELETED_USER ) {
296  $rev['userhidden'] = true;
297  $anyHidden = true;
298  }
299  if ( Revision::userCanBitfield( $row->ar_deleted, RevisionRecord::DELETED_USER, $user ) ) {
300  if ( $fld_user ) {
301  $rev['user'] = $row->ar_user_text;
302  }
303  if ( $fld_userid ) {
304  $rev['userid'] = (int)$row->ar_user;
305  }
306  }
307  }
308 
309  if ( $fld_comment || $fld_parsedcomment ) {
310  if ( $row->ar_deleted & RevisionRecord::DELETED_COMMENT ) {
311  $rev['commenthidden'] = true;
312  $anyHidden = true;
313  }
314  if ( Revision::userCanBitfield( $row->ar_deleted, RevisionRecord::DELETED_COMMENT, $user ) ) {
315  $comment = $commentStore->getComment( 'ar_comment', $row )->text;
316  if ( $fld_comment ) {
317  $rev['comment'] = $comment;
318  }
319  if ( $fld_parsedcomment ) {
320  $title = Title::makeTitle( $row->ar_namespace, $row->ar_title );
321  $rev['parsedcomment'] = Linker::formatComment( $comment, $title );
322  }
323  }
324  }
325 
326  if ( $fld_minor ) {
327  $rev['minor'] = $row->ar_minor_edit == 1;
328  }
329  if ( $fld_len ) {
330  $rev['len'] = $row->ar_len;
331  }
332  if ( $fld_sha1 ) {
333  if ( $row->ar_deleted & RevisionRecord::DELETED_TEXT ) {
334  $rev['sha1hidden'] = true;
335  $anyHidden = true;
336  }
337  if ( Revision::userCanBitfield( $row->ar_deleted, RevisionRecord::DELETED_TEXT, $user ) ) {
338  if ( $row->ar_sha1 != '' ) {
339  $rev['sha1'] = Wikimedia\base_convert( $row->ar_sha1, 36, 16, 40 );
340  } else {
341  $rev['sha1'] = '';
342  }
343  }
344  }
345  if ( $fld_content ) {
346  if ( $row->ar_deleted & RevisionRecord::DELETED_TEXT ) {
347  $rev['texthidden'] = true;
348  $anyHidden = true;
349  }
350  if ( Revision::userCanBitfield( $row->ar_deleted, RevisionRecord::DELETED_TEXT, $user ) ) {
351  ApiResult::setContentValue( $rev, 'text',
352  $revisionStore->newRevisionFromArchiveRow( $row )
353  ->getContent( SlotRecord::MAIN )->serialize() );
354  }
355  }
356 
357  if ( $fld_tags ) {
358  if ( $row->ts_tags ) {
359  $tags = explode( ',', $row->ts_tags );
360  ApiResult::setIndexedTagName( $tags, 'tag' );
361  $rev['tags'] = $tags;
362  } else {
363  $rev['tags'] = [];
364  }
365  }
366 
367  if ( $anyHidden && ( $row->ar_deleted & RevisionRecord::DELETED_RESTRICTED ) ) {
368  $rev['suppressed'] = true;
369  }
370 
371  if ( !isset( $pageMap[$row->ar_namespace][$row->ar_title] ) ) {
372  $pageID = $newPageID++;
373  $pageMap[$row->ar_namespace][$row->ar_title] = $pageID;
374  $a = [ 'revisions' => [ $rev ] ];
375  ApiResult::setIndexedTagName( $a['revisions'], 'rev' );
376  $title = Title::makeTitle( $row->ar_namespace, $row->ar_title );
378  if ( $fld_token ) {
379  $a['token'] = $token;
380  }
381  $fit = $result->addValue( [ 'query', $this->getModuleName() ], $pageID, $a );
382  } else {
383  $pageID = $pageMap[$row->ar_namespace][$row->ar_title];
384  $fit = $result->addValue(
385  [ 'query', $this->getModuleName(), $pageID, 'revisions' ],
386  null, $rev );
387  }
388  if ( !$fit ) {
389  if ( $mode == 'all' || $mode == 'revs' ) {
390  $this->setContinueEnumParameter( 'continue',
391  "$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id"
392  );
393  } else {
394  $this->setContinueEnumParameter( 'continue', "$row->ar_timestamp|$row->ar_id" );
395  }
396  break;
397  }
398  }
399  $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'page' );
400  }
401 
402  public function isDeprecated() {
403  return true;
404  }
405 
406  public function getAllowedParams() {
407  return [
408  'start' => [
409  ApiBase::PARAM_TYPE => 'timestamp',
410  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 2 ] ],
411  ],
412  'end' => [
413  ApiBase::PARAM_TYPE => 'timestamp',
414  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 2 ] ],
415  ],
416  'dir' => [
418  'newer',
419  'older'
420  ],
421  ApiBase::PARAM_DFLT => 'older',
422  ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
423  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 1, 3 ] ],
424  ],
425  'from' => [
426  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
427  ],
428  'to' => [
429  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
430  ],
431  'prefix' => [
432  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
433  ],
434  'unique' => [
435  ApiBase::PARAM_DFLT => false,
436  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
437  ],
438  'namespace' => [
439  ApiBase::PARAM_TYPE => 'namespace',
441  ApiBase::PARAM_HELP_MSG_INFO => [ [ 'modes', 3 ] ],
442  ],
443  'tag' => null,
444  'user' => [
445  ApiBase::PARAM_TYPE => 'user'
446  ],
447  'excludeuser' => [
448  ApiBase::PARAM_TYPE => 'user'
449  ],
450  'prop' => [
451  ApiBase::PARAM_DFLT => 'user|comment',
453  'revid',
454  'parentid',
455  'user',
456  'userid',
457  'comment',
458  'parsedcomment',
459  'minor',
460  'len',
461  'sha1',
462  'content',
463  'token',
464  'tags'
465  ],
467  ],
468  'limit' => [
469  ApiBase::PARAM_DFLT => 10,
470  ApiBase::PARAM_TYPE => 'limit',
471  ApiBase::PARAM_MIN => 1,
474  ],
475  'continue' => [
476  ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
477  ],
478  ];
479  }
480 
481  protected function getExamplesMessages() {
482  return [
483  'action=query&list=deletedrevs&titles=Main%20Page|Talk:Main%20Page&' .
484  'drprop=user|comment|content'
485  => 'apihelp-query+deletedrevs-example-mode1',
486  'action=query&list=deletedrevs&druser=Bob&drlimit=50'
487  => 'apihelp-query+deletedrevs-example-mode2',
488  'action=query&list=deletedrevs&drdir=newer&drlimit=50'
489  => 'apihelp-query+deletedrevs-example-mode3-main',
490  'action=query&list=deletedrevs&drdir=newer&drlimit=50&drnamespace=1&drunique='
491  => 'apihelp-query+deletedrevs-example-mode3-talk',
492  ];
493  }
494 
495  public function getHelpUrls() {
496  return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Deletedrevs';
497  }
498 }
select( $method, $extraQuery=[], array &$hookData=null)
Execute a SELECT query based on the values in the internal arrays.
const PARAM_TYPE
(string|string[]) Either an array of allowed value strings, or a string type as described below...
Definition: ApiBase.php:94
getDB()
Get the Query database connection (read-only)
const LIMIT_BIG2
Fast query, apihighlimits limit.
Definition: ApiBase.php:261
static addTitleInfo(&$arr, $title, $prefix='')
Add information (title and namespace) about a Title object to a result array.
getResult()
Get the result object.
Definition: ApiBase.php:640
const NS_MAIN
Definition: Defines.php:60
addJoinConds( $join_conds)
Add a set of JOIN conditions to the internal array.
addDeprecation( $msg, $feature, $data=[])
Add a deprecation warning for this module.
Definition: ApiBase.php:1939
validateLimit( $paramName, &$value, $min, $max, $botMax=null, $enforceLimits=false)
Validate the value against the minimum and user/bot maximum limits.
Definition: ApiBase.php:1570
const PARAM_DFLT
(null|boolean|integer|string) Default value of the parameter.
Definition: ApiBase.php:55
getMain()
Get the main module.
Definition: ApiBase.php:536
const LIMIT_BIG1
Fast query, standard limit.
Definition: ApiBase.php:259
Exception representing a failure to look up a row from a name table.
const PARAM_MAX
(integer) Max value allowed for the parameter, for PARAM_TYPE &#39;integer&#39; and &#39;limit&#39;.
Definition: ApiBase.php:97
This is a base class for all Query modules.
const PARAM_HELP_MSG_INFO
(array) Specify additional information tags for the parameter.
Definition: ApiBase.php:148
lacksSameOriginSecurity()
Returns true if the current request breaks the same-origin policy.
Definition: ApiBase.php:568
dieWithError( $msg, $code=null, $data=null, $httpCode=null)
Abort execution with an error.
Definition: ApiBase.php:2006
extractRequestParams( $options=[])
Using getAllowedParams(), this function makes an array of the values provided by the user...
Definition: ApiBase.php:761
getPageSet()
Get the PageSet object to work on.
static setContentValue(array &$arr, $name, $value, $flags=0)
Add an output value to the array by name and mark as META_CONTENT.
Definition: ApiResult.php:478
static setIndexedTagName(array &$arr, $tag)
Set the tag name for numeric-keyed values in XML format.
Definition: ApiResult.php:616
Class representing a list of titles The execute() method checks them all for existence and adds them ...
Definition: LinkBatch.php:34
wfTimestamp( $outputtype=TS_UNIX, $ts=0)
Get a timestamp string in one of various formats.
static newMigration()
Static constructor.
addTables( $tables, $alias=null)
Add a set of tables to the internal array.
static formatComment( $comment, $title=null, $local=false, $wikiId=null)
This function is called by all recent changes variants, by the page history, and by the user contribu...
Definition: Linker.php:1165
titlePartToKey( $titlePart, $namespace=NS_MAIN)
Convert an input title or title prefix into a dbkey.
static userCanBitfield( $bitfield, $field, User $user=null, Title $title=null)
Determine if the current user is allowed to view a particular field of this revision, if it&#39;s marked as deleted.
Definition: Revision.php:1041
dieContinueUsageIf( $condition)
Die with the &#39;badcontinue&#39; error.
Definition: ApiBase.php:2200
const LIMIT_SML2
Slow query, apihighlimits limit.
Definition: ApiBase.php:265
getModuleName()
Get the name of the module being executed by this instance.
Definition: ApiBase.php:520
addFields( $value)
Add a set of fields to select to the internal array.
__construct(ApiQuery $query, $moduleName)
const PARAM_MAX2
(integer) Max value allowed for the parameter for users with the apihighlimits right, for PARAM_TYPE &#39;limit&#39;.
Definition: ApiBase.php:103
This is the main query class.
Definition: ApiQuery.php:37
const PARAM_HELP_MSG
(string|array|Message) Specify an alternative i18n documentation message for this parameter...
Definition: ApiBase.php:131
Query module to enumerate all deleted revisions.
const LIMIT_SML1
Slow query, standard limit.
Definition: ApiBase.php:263
addTimestampWhereRange( $field, $dir, $start, $end, $sort=true)
Add a WHERE clause corresponding to a range, similar to addWhereRange, but converts $start and $end t...
static makeTitle( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:584
static getStore()
addWhere( $value)
Add a set of WHERE clauses to the internal array.
const PARAM_ISMULTI
(boolean) Accept multiple pipe-separated values for this parameter (e.g.
Definition: ApiBase.php:58
getPermissionManager()
Obtain a PermissionManager instance that subclasses may use in their authorization checks...
Definition: ApiBase.php:710
addWhereFld( $field, $value)
Equivalent to addWhere( [ $field => $value ] )
addOption( $name, $value=null)
Add an option such as LIMIT or USE INDEX.
const PARAM_MIN
(integer) Lowest value allowed for the parameter, for PARAM_TYPE &#39;integer&#39; and &#39;limit&#39;.
Definition: ApiBase.php:106
static newFromName( $name, $validate='valid')
Static factory method for creation from username.
Definition: User.php:536
static makeTagSummarySubquery( $tables)
Make the tag summary subquery based on the given tables and return it.
Definition: ChangeTags.php:837
checkUserRightsAny( $rights, $user=null)
Helper function for permission-denied errors.
Definition: ApiBase.php:2122
return true
Definition: router.php:92
addWhereRange( $field, $dir, $start, $end, $sort=true)
Add a WHERE clause corresponding to a range, and an ORDER BY clause to sort in the right direction...
setContinueEnumParameter( $paramName, $paramValue)
Set a query-continue value.