3 * See docs/deferred.txt
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.
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.
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
20 * @todo document (e.g. one-sentence top-level class description).
27 var $mId, //!< Page ID of the article linked from
28 $mTitle, //!< Title object of the article linked from
29 $mLinks, //!< Map of title strings to IDs for the links in the document
30 $mImages, //!< DB keys of the images used, in the array key only
31 $mTemplates, //!< Map of title strings to IDs for the template references, including broken ones
32 $mDistantTemplates,//!< Map of title strings to IDs for the distant template references, including broken ones
33 $mExternals, //!< URLs of external links, array key only
34 $mCategories, //!< Map of category names to sort keys
35 $mInterlangs, //!< Map of language codes to titles
36 $mProperties, //!< Map of arbitrary name to value
37 $mDb, //!< Database connection reference
38 $mOptions, //!< SELECT options to be used (array)
39 $mRecursive; //!< Whether to queue jobs for recursive updates
45 * @param $title Title of the page we're updating
46 * @param $parserOutput ParserOutput: output from a full parse of this page
47 * @param $recursive Boolean: queue jobs for recursive updates?
49 function __construct( $title, $parserOutput, $recursive = true ) {
50 global $wgAntiLockFlags;
52 if ( $wgAntiLockFlags & ALF_NO_LINK_LOCK
) {
53 $this->mOptions
= array();
55 $this->mOptions
= array( 'FOR UPDATE' );
57 $this->mDb
= wfGetDB( DB_MASTER
);
59 if ( !is_object( $title ) ) {
60 throw new MWException( "The calling convention to LinksUpdate::LinksUpdate() has changed. " .
61 "Please see Article::editUpdates() for an invocation example.\n" );
63 $this->mTitle
= $title;
64 $this->mId
= $title->getArticleID();
66 $this->mParserOutput
= $parserOutput;
67 $this->mLinks
= $parserOutput->getLinks();
68 $this->mImages
= $parserOutput->getImages();
69 $this->mTemplates
= $parserOutput->getTemplates();
70 $this->mDistantTemplates
= $parserOutput->getDistantTemplates();
71 $this->mExternals
= $parserOutput->getExternalLinks();
72 $this->mCategories
= $parserOutput->getCategories();
73 $this->mProperties
= $parserOutput->getProperties();
74 $this->mInterwikis
= $parserOutput->getInterwikiLinks();
76 # Convert the format of the interlanguage links
77 # I didn't want to change it in the ParserOutput, because that array is passed all
78 # the way back to the skin, so either a skin API break would be required, or an
79 # inefficient back-conversion.
80 $ill = $parserOutput->getLanguageLinks();
81 $this->mInterlangs
= array();
82 foreach ( $ill as $link ) {
83 list( $key, $title ) = explode( ':', $link, 2 );
84 $this->mInterlangs
[$key] = $title;
87 foreach ( $this->mCategories
as &$sortkey ) {
88 # If the sortkey is longer then 255 bytes,
89 # it truncated by DB, and then doesn't get
90 # matched when comparing existing vs current
91 # categories, causing bug 25254.
92 # Also. substr behaves weird when given "".
93 if ( $sortkey !== '' ) {
94 $sortkey = substr( $sortkey, 0, 255 );
98 $this->mRecursive
= $recursive;
100 wfRunHooks( 'LinksUpdateConstructed', array( &$this ) );
104 * Update link tables with outgoing links from an updated article
106 public function doUpdate() {
107 global $wgUseDumbLinkUpdate;
109 wfRunHooks( 'LinksUpdate', array( &$this ) );
110 if ( $wgUseDumbLinkUpdate ) {
111 $this->doDumbUpdate();
113 $this->doIncrementalUpdate();
115 wfRunHooks( 'LinksUpdateComplete', array( &$this ) );
118 protected function doIncrementalUpdate() {
119 wfProfileIn( __METHOD__
);
122 $existing = $this->getExistingLinks();
123 $this->incrTableUpdate( 'pagelinks', 'pl', $this->getLinkDeletions( $existing ),
124 $this->getLinkInsertions( $existing ) );
127 $existing = $this->getExistingImages();
129 $imageDeletes = $this->getImageDeletions( $existing );
130 $this->incrTableUpdate( 'imagelinks', 'il', $imageDeletes,
131 $this->getImageInsertions( $existing ) );
133 # Invalidate all image description pages which had links added or removed
134 $imageUpdates = $imageDeletes +
array_diff_key( $this->mImages
, $existing );
135 $this->invalidateImageDescriptions( $imageUpdates );
138 $existing = $this->getExistingExternals();
139 $this->incrTableUpdate( 'externallinks', 'el', $this->getExternalDeletions( $existing ),
140 $this->getExternalInsertions( $existing ) );
143 $existing = $this->getExistingInterlangs();
144 $this->incrTableUpdate( 'langlinks', 'll', $this->getInterlangDeletions( $existing ),
145 $this->getInterlangInsertions( $existing ) );
147 # Inline interwiki links
148 $existing = $this->getExistingInterwikis();
149 $this->incrTableUpdate( 'iwlinks', 'iwl', $this->getInterwikiDeletions( $existing ),
150 $this->getInterwikiInsertions( $existing ) );
153 $existing = $this->getExistingTemplates();
154 $this->incrTableUpdate( 'templatelinks', 'tl', $this->getTemplateDeletions( $existing ),
155 $this->getTemplateInsertions( $existing ) );
157 # Distant template links
158 global $wgGlobalDatabase;
159 if ( $wgGlobalDatabase ) {
160 $existing = $this->getDistantExistingTemplates();
161 $this->incrSharedTableUpdate( 'globaltemplatelinks', 'gtl',
162 $this->getDistantTemplateDeletions( $existing ),
163 $this->getDistantTemplateInsertions( $existing ) );
167 $existing = $this->getExistingCategories();
169 $categoryDeletes = $this->getCategoryDeletions( $existing );
171 $this->incrTableUpdate( 'categorylinks', 'cl', $categoryDeletes,
172 $this->getCategoryInsertions( $existing ) );
174 # Invalidate all categories which were added, deleted or changed (set symmetric difference)
175 $categoryInserts = array_diff_assoc( $this->mCategories
, $existing );
176 $categoryUpdates = $categoryInserts +
$categoryDeletes;
177 $this->invalidateCategories( $categoryUpdates );
178 $this->updateCategoryCounts( $categoryInserts, $categoryDeletes );
181 $existing = $this->getExistingProperties();
183 $propertiesDeletes = $this->getPropertyDeletions( $existing );
185 $this->incrTableUpdate( 'page_props', 'pp', $propertiesDeletes,
186 $this->getPropertyInsertions( $existing ) );
188 # Invalidate the necessary pages
189 $changed = $propertiesDeletes +
array_diff_assoc( $this->mProperties
, $existing );
190 $this->invalidateProperties( $changed );
192 # Refresh links of all pages including this page
193 # This will be in a separate transaction
194 if ( $this->mRecursive
) {
195 $this->queueRecursiveJobs();
198 wfProfileOut( __METHOD__
);
202 * Link update which clears the previous entries and inserts new ones
203 * May be slower or faster depending on level of lock contention and write speed of DB
204 * Also useful where link table corruption needs to be repaired, e.g. in refreshLinks.php
206 protected function doDumbUpdate() {
207 wfProfileIn( __METHOD__
);
209 # Refresh category pages and image description pages
210 $existing = $this->getExistingCategories();
211 $categoryInserts = array_diff_assoc( $this->mCategories
, $existing );
212 $categoryDeletes = array_diff_assoc( $existing, $this->mCategories
);
213 $categoryUpdates = $categoryInserts +
$categoryDeletes;
214 $existing = $this->getExistingImages();
215 $imageUpdates = array_diff_key( $existing, $this->mImages
) +
array_diff_key( $this->mImages
, $existing );
217 $this->dumbTableUpdate( 'pagelinks', $this->getLinkInsertions(), 'pl_from' );
218 $this->dumbTableUpdate( 'imagelinks', $this->getImageInsertions(), 'il_from' );
219 $this->dumbTableUpdate( 'categorylinks', $this->getCategoryInsertions(), 'cl_from' );
220 $this->dumbTableUpdate( 'templatelinks', $this->getTemplateInsertions(), 'tl_from' );
221 $this->dumbTableUpdate( 'externallinks', $this->getExternalInsertions(), 'el_from' );
222 $this->dumbTableUpdate( 'langlinks', $this->getInterlangInsertions(),'ll_from' );
223 $this->dumbTableUpdate( 'iwlinks', $this->getInterwikiInsertions(),'iwl_from' );
224 $this->dumbTableUpdate( 'page_props', $this->getPropertyInsertions(), 'pp_page' );
226 # Update the cache of all the category pages and image description
227 # pages which were changed, and fix the category table count
228 $this->invalidateCategories( $categoryUpdates );
229 $this->updateCategoryCounts( $categoryInserts, $categoryDeletes );
230 $this->invalidateImageDescriptions( $imageUpdates );
232 # Refresh links of all pages including this page
233 # This will be in a separate transaction
234 if ( $this->mRecursive
) {
235 $this->queueRecursiveJobs();
238 wfProfileOut( __METHOD__
);
241 function queueRecursiveJobs() {
242 global $wgUpdateRowsPerJob;
243 wfProfileIn( __METHOD__
);
245 $cache = $this->mTitle
->getBacklinkCache();
246 $batches = $cache->partition( 'templatelinks', $wgUpdateRowsPerJob );
248 wfProfileOut( __METHOD__
);
252 foreach ( $batches as $batch ) {
253 list( $start, $end ) = $batch;
255 'table' => 'templatelinks',
259 $jobs[] = new RefreshLinksJob2( $this->mTitle
, $params );
261 Job
::batchInsert( $jobs );
263 wfProfileOut( __METHOD__
);
267 * Invalidate the cache of a list of pages from a single namespace
269 * @param $namespace Integer
270 * @param $dbkeys Array
272 function invalidatePages( $namespace, $dbkeys ) {
273 if ( !count( $dbkeys ) ) {
278 * Determine which pages need to be updated
279 * This is necessary to prevent the job queue from smashing the DB with
280 * large numbers of concurrent invalidations of the same page
282 $now = $this->mDb
->timestamp();
284 $res = $this->mDb
->select( 'page', array( 'page_id' ),
286 'page_namespace' => $namespace,
287 'page_title IN (' . $this->mDb
->makeList( $dbkeys ) . ')',
288 'page_touched < ' . $this->mDb
->addQuotes( $now )
291 foreach ( $res as $row ) {
292 $ids[] = $row->page_id
;
294 if ( !count( $ids ) ) {
300 * We still need the page_touched condition, in case the row has changed since
301 * the non-locking select above.
303 $this->mDb
->update( 'page', array( 'page_touched' => $now ),
305 'page_id IN (' . $this->mDb
->makeList( $ids ) . ')',
306 'page_touched < ' . $this->mDb
->addQuotes( $now )
311 function invalidateCategories( $cats ) {
312 $this->invalidatePages( NS_CATEGORY
, array_keys( $cats ) );
316 * Update all the appropriate counts in the category table.
317 * @param $added associative array of category name => sort key
318 * @param $deleted associative array of category name => sort key
320 function updateCategoryCounts( $added, $deleted ) {
321 $a = new Article($this->mTitle
);
322 $a->updateCategoryCounts(
323 array_keys( $added ), array_keys( $deleted )
327 function invalidateImageDescriptions( $images ) {
328 $this->invalidatePages( NS_FILE
, array_keys( $images ) );
331 function dumbTableUpdate( $table, $insertions, $fromField ) {
332 $this->mDb
->delete( $table, array( $fromField => $this->mId
), __METHOD__
);
333 if ( count( $insertions ) ) {
334 # The link array was constructed without FOR UPDATE, so there may
335 # be collisions. This may cause minor link table inconsistencies,
336 # which is better than crippling the site with lock contention.
337 $this->mDb
->insert( $table, $insertions, __METHOD__
, array( 'IGNORE' ) );
342 * Update a table by doing a delete query then an insert query
345 function incrTableUpdate( $table, $prefix, $deletions, $insertions ) {
346 if ( $table == 'page_props' ) {
347 $fromField = 'pp_page';
349 $fromField = "{$prefix}_from";
351 $where = array( $fromField => $this->mId
);
352 if ( $table == 'pagelinks' ||
$table == 'templatelinks' ||
$table == 'iwlinks' ) {
353 if ( $table == 'iwlinks' ) {
354 $baseKey = 'iwl_prefix';
356 $baseKey = "{$prefix}_namespace";
358 $clause = $this->mDb
->makeWhereFrom2d( $deletions, $baseKey, "{$prefix}_title" );
365 if ( $table == 'langlinks' ) {
366 $toField = 'll_lang';
367 } elseif ( $table == 'page_props' ) {
368 $toField = 'pp_propname';
370 $toField = $prefix . '_to';
372 if ( count( $deletions ) ) {
373 $where[] = "$toField IN (" . $this->mDb
->makeList( array_keys( $deletions ) ) . ')';
379 $this->mDb
->delete( $table, $where, __METHOD__
);
381 if ( isset( $insertions['globaltemplatelinks'] ) ) {
382 $this->mDb
->insert( 'globaltemplatelinks', $insertions['globaltemplatelinks'], __METHOD__
, 'IGNORE' );
383 unset( $insertions['globaltemplatelinks'] );
385 if ( isset( $insertions['globalnamespaces'] ) ) {
386 $this->mDb
->insert( 'globalnamespaces', $insertions['globalnamespaces'], __METHOD__
, 'IGNORE' );
387 unset( $insertions['globalnamespaces'] );
389 if ( isset( $insertions['globalinterwiki'] ) ) {
390 $this->mDb
->insert( 'globalinterwiki', $insertions['globalinterwiki'], __METHOD__
, 'IGNORE' );
391 unset( $insertions['globalinterwiki'] );
393 if ( count( $insertions ) ) {
394 $this->mDb
->insert( $table, $insertions, __METHOD__
, 'IGNORE' );
399 * Update a shared table by doing a delete query then an insert query
402 function incrSharedTableUpdate( $table, $prefix, $deletions, $insertions ) {
403 global $wgGlobalDatabase;
405 if ( $wgGlobalDatabase ) {
406 $dbw = wfGetDB( DB_MASTER
, array(), $wgGlobalDatabase );
407 $where = array( "{$prefix}_from_wiki" => wfWikiID(),
408 "{$prefix}_from_page" => $this->mId
410 $baseKey = "{$prefix}_to_wiki";
411 $middleKey = "{$prefix}_to_namespace";
413 $clause = $dbw->makeWhereFrom3d( $deletions, $baseKey, $middleKey, "{$prefix}_to_title" );
421 $dbw->delete( $table, $where, __METHOD__
);
423 if ( count( $insertions ) ) {
424 $dbw->insert( $table, $insertions, __METHOD__
, 'IGNORE' );
430 * Get an array of pagelinks insertions for passing to the DB
431 * Skips the titles specified by the 2-D array $existing
434 function getLinkInsertions( $existing = array() ) {
436 foreach( $this->mLinks
as $ns => $dbkeys ) {
437 $diffs = isset( $existing[$ns] )
438 ?
array_diff_key( $dbkeys, $existing[$ns] )
440 foreach ( $diffs as $dbk => $id ) {
442 'pl_from' => $this->mId
,
443 'pl_namespace' => $ns,
452 * Get an array of template insertions. Like getLinkInsertions()
455 function getTemplateInsertions( $existing = array() ) {
457 foreach( $this->mTemplates
as $ns => $dbkeys ) {
458 $diffs = isset( $existing[$ns] ) ?
array_diff_key( $dbkeys, $existing[$ns] ) : $dbkeys;
459 foreach ( $diffs as $dbk => $id ) {
461 'tl_from' => $this->mId
,
462 'tl_namespace' => $ns,
471 * Get an array of distant template insertions. Like getLinkInsertions()
474 function getDistantTemplateInsertions( $existing = array() ) {
476 foreach( $this->mDistantTemplates
as $prefix => $templatesToNS ) {
477 foreach( $templatesToNS as $ns => $dbkeys ) {
478 $diffs = isset( $existing[$prefix] ) && isset( $existing[$prefix][$ns] )
479 ?
array_diff_key( $dbkeys, $existing[$prefix][$ns] )
481 $interwiki = Interwiki
::fetch( $prefix );
482 $wikiid = $interwiki->getWikiID();
483 foreach ( $diffs as $dbk => $id ) {
484 $arr['globaltemplatelinks'][] = array(
485 'gtl_from_wiki' => wfWikiID(),
486 'gtl_from_page' => $this->mId
,
487 'gtl_from_namespace' => $this->mTitle
->getNamespace(),
488 'gtl_from_title' => $this->mTitle
->getText(),
489 'gtl_to_wiki' => $wikiid,
490 'gtl_to_namespace' => $ns,
491 'gtl_to_title' => $dbk
493 $arr['globalinterwiki'][] = array(
494 'giw_wikiid' => $wikiid,
495 'giw_prefix' => $prefix,
497 $arr['globalnamespaces'][] = array(
498 'gn_wiki' => wfWikiID( ),
499 'gn_namespace' => $this->mTitle
->getNamespace(),
500 'gn_namespacetext' => $this->mTitle
->getNsText(),
509 * Get an array of image insertions
510 * Skips the names specified in $existing
513 function getImageInsertions( $existing = array() ) {
515 $diffs = array_diff_key( $this->mImages
, $existing );
516 foreach( $diffs as $iname => $dummy ) {
518 'il_from' => $this->mId
,
526 * Get an array of externallinks insertions. Skips the names specified in $existing
529 function getExternalInsertions( $existing = array() ) {
531 $diffs = array_diff_key( $this->mExternals
, $existing );
532 foreach( $diffs as $url => $dummy ) {
534 'el_from' => $this->mId
,
536 'el_index' => wfMakeUrlIndex( $url ),
543 * Get an array of category insertions
545 * @param $existing Array mapping existing category names to sort keys. If both
546 * match a link in $this, the link will be omitted from the output
549 function getCategoryInsertions( $existing = array() ) {
550 global $wgContLang, $wgCategoryCollation;
551 $diffs = array_diff_assoc( $this->mCategories
, $existing );
553 foreach ( $diffs as $name => $prefix ) {
554 $nt = Title
::makeTitleSafe( NS_CATEGORY
, $name );
555 $wgContLang->findVariantLink( $name, $nt, true );
557 if ( $this->mTitle
->getNamespace() == NS_CATEGORY
) {
559 } elseif ( $this->mTitle
->getNamespace() == NS_FILE
) {
565 # Treat custom sortkeys as a prefix, so that if multiple
566 # things are forced to sort as '*' or something, they'll
567 # sort properly in the category rather than in page_id
569 $sortkey = Collation
::singleton()->getSortKey(
570 $this->mTitle
->getCategorySortkey( $prefix ) );
573 'cl_from' => $this->mId
,
575 'cl_sortkey' => $sortkey,
576 'cl_timestamp' => $this->mDb
->timestamp(),
577 'cl_sortkey_prefix' => $prefix,
578 'cl_collation' => $wgCategoryCollation,
586 * Get an array of interlanguage link insertions
588 * @param $existing Array mapping existing language codes to titles
591 function getInterlangInsertions( $existing = array() ) {
592 $diffs = array_diff_assoc( $this->mInterlangs
, $existing );
594 foreach( $diffs as $lang => $title ) {
596 'll_from' => $this->mId
,
605 * Get an array of page property insertions
607 function getPropertyInsertions( $existing = array() ) {
608 $diffs = array_diff_assoc( $this->mProperties
, $existing );
610 foreach ( $diffs as $name => $value ) {
612 'pp_page' => $this->mId
,
613 'pp_propname' => $name,
614 'pp_value' => $value,
621 * Get an array of interwiki insertions for passing to the DB
622 * Skips the titles specified by the 2-D array $existing
625 function getInterwikiInsertions( $existing = array() ) {
627 foreach( $this->mInterwikis
as $prefix => $dbkeys ) {
628 $diffs = isset( $existing[$prefix] ) ?
array_diff_key( $dbkeys, $existing[$prefix] ) : $dbkeys;
629 foreach ( $diffs as $dbk => $id ) {
631 'iwl_from' => $this->mId
,
632 'iwl_prefix' => $prefix,
641 * Given an array of existing links, returns those links which are not in $this
642 * and thus should be deleted.
645 function getLinkDeletions( $existing ) {
647 foreach ( $existing as $ns => $dbkeys ) {
648 if ( isset( $this->mLinks
[$ns] ) ) {
649 $del[$ns] = array_diff_key( $existing[$ns], $this->mLinks
[$ns] );
651 $del[$ns] = $existing[$ns];
658 * Given an array of existing templates, returns those templates which are not in $this
659 * and thus should be deleted.
662 function getTemplateDeletions( $existing ) {
664 foreach ( $existing as $ns => $dbkeys ) {
665 if ( isset( $this->mTemplates
[$ns] ) ) {
666 $del[$ns] = array_diff_key( $existing[$ns], $this->mTemplates
[$ns] );
668 $del[$ns] = $existing[$ns];
675 * Given an array of existing templates, returns those templates which are not in $this
676 * and thus should be deleted.
679 function getDistantTemplateDeletions( $existing ) {
681 foreach ( $existing as $wikiid => $templatesForNS ) {
682 if ( isset( $this->mDistantTemplates
[$wikiid] ) ) {
683 $del[$wikiid] = array_diff_key( $existing[$wikiid], $this->mDistantTemplates
[$wikiid] );
685 $del[$wikiid] = $existing[$wikiid];
687 foreach ( $templatesForNS as $ns => $dbkeys ) {
688 if ( isset( $this->mDistantTemplates
[$wikiid][$ns] ) ) {
689 $del[$wikiid][$ns] = array_diff_key( $existing[$wikiid][$ns], $this->mDistantTemplates
[$wikiid][$ns] );
691 $del[$wikiid][$ns] = $existing[$wikiid][$ns];
699 * Given an array of existing images, returns those images which are not in $this
700 * and thus should be deleted.
703 function getImageDeletions( $existing ) {
704 return array_diff_key( $existing, $this->mImages
);
708 * Given an array of existing external links, returns those links which are not
709 * in $this and thus should be deleted.
712 function getExternalDeletions( $existing ) {
713 return array_diff_key( $existing, $this->mExternals
);
717 * Given an array of existing categories, returns those categories which are not in $this
718 * and thus should be deleted.
721 function getCategoryDeletions( $existing ) {
722 return array_diff_assoc( $existing, $this->mCategories
);
726 * Given an array of existing interlanguage links, returns those links which are not
727 * in $this and thus should be deleted.
730 function getInterlangDeletions( $existing ) {
731 return array_diff_assoc( $existing, $this->mInterlangs
);
735 * Get array of properties which should be deleted.
738 function getPropertyDeletions( $existing ) {
739 return array_diff_assoc( $existing, $this->mProperties
);
743 * Given an array of existing interwiki links, returns those links which are not in $this
744 * and thus should be deleted.
747 function getInterwikiDeletions( $existing ) {
749 foreach ( $existing as $prefix => $dbkeys ) {
750 if ( isset( $this->mInterwikis
[$prefix] ) ) {
751 $del[$prefix] = array_diff_key( $existing[$prefix], $this->mInterwikis
[$prefix] );
753 $del[$prefix] = $existing[$prefix];
760 * Get an array of existing links, as a 2-D array
763 function getExistingLinks() {
764 $res = $this->mDb
->select( 'pagelinks', array( 'pl_namespace', 'pl_title' ),
765 array( 'pl_from' => $this->mId
), __METHOD__
, $this->mOptions
);
767 foreach ( $res as $row ) {
768 if ( !isset( $arr[$row->pl_namespace
] ) ) {
769 $arr[$row->pl_namespace
] = array();
771 $arr[$row->pl_namespace
][$row->pl_title
] = 1;
777 * Get an array of existing templates, as a 2-D array
780 function getExistingTemplates() {
781 $res = $this->mDb
->select( 'templatelinks', array( 'tl_namespace', 'tl_title' ),
782 array( 'tl_from' => $this->mId
), __METHOD__
, $this->mOptions
);
784 foreach ( $res as $row ) {
785 if ( !isset( $arr[$row->tl_namespace
] ) ) {
786 $arr[$row->tl_namespace
] = array();
788 $arr[$row->tl_namespace
][$row->tl_title
] = 1;
794 * Get an array of existing distant templates, as a 3-D array
797 function getDistantExistingTemplates() {
798 global $wgGlobalDatabase;
801 if ( $wgGlobalDatabase ) {
802 $dbr = wfGetDB( DB_SLAVE
, array(), $wgGlobalDatabase );
804 'globaltemplatelinks',
805 array( 'gtl_to_wiki', 'gtl_to_namespace', 'gtl_to_title' ),
806 array( 'gtl_from_wiki' => wfWikiID(), 'gtl_from_page' => $this->mId
),
810 foreach ( $res as $row ) {
811 if ( !isset( $arr[$row->gtl_to_wiki
] ) ) {
812 $arr[$row->gtl_to_wiki
] = array();
814 if ( !isset( $arr[$row->gtl_to_wiki
][$row->gtl_to_namespace
] ) ) {
815 $arr[$row->gtl_to_wiki
][$row->gtl_to_namespace
] = array();
817 $arr[$row->gtl_to_wiki
][$row->gtl_to_namespace
][$row->gtl_to_title
] = 1;
824 * Get an array of existing images, image names in the keys
827 function getExistingImages() {
828 $res = $this->mDb
->select( 'imagelinks', array( 'il_to' ),
829 array( 'il_from' => $this->mId
), __METHOD__
, $this->mOptions
);
831 foreach ( $res as $row ) {
832 $arr[$row->il_to
] = 1;
838 * Get an array of existing external links, URLs in the keys
841 function getExistingExternals() {
842 $res = $this->mDb
->select( 'externallinks', array( 'el_to' ),
843 array( 'el_from' => $this->mId
), __METHOD__
, $this->mOptions
);
845 foreach ( $res as $row ) {
846 $arr[$row->el_to
] = 1;
852 * Get an array of existing categories, with the name in the key and sort key in the value.
855 function getExistingCategories() {
856 $res = $this->mDb
->select( 'categorylinks', array( 'cl_to', 'cl_sortkey_prefix' ),
857 array( 'cl_from' => $this->mId
), __METHOD__
, $this->mOptions
);
859 foreach ( $res as $row ) {
860 $arr[$row->cl_to
] = $row->cl_sortkey_prefix
;
866 * Get an array of existing interlanguage links, with the language code in the key and the
867 * title in the value.
870 function getExistingInterlangs() {
871 $res = $this->mDb
->select( 'langlinks', array( 'll_lang', 'll_title' ),
872 array( 'll_from' => $this->mId
), __METHOD__
, $this->mOptions
);
874 foreach ( $res as $row ) {
875 $arr[$row->ll_lang
] = $row->ll_title
;
881 * Get an array of existing inline interwiki links, as a 2-D array
882 * @return array (prefix => array(dbkey => 1))
884 protected function getExistingInterwikis() {
885 $res = $this->mDb
->select( 'iwlinks', array( 'iwl_prefix', 'iwl_title' ),
886 array( 'iwl_from' => $this->mId
), __METHOD__
, $this->mOptions
);
888 foreach ( $res as $row ) {
889 if ( !isset( $arr[$row->iwl_prefix
] ) ) {
890 $arr[$row->iwl_prefix
] = array();
892 $arr[$row->iwl_prefix
][$row->iwl_title
] = 1;
898 * Get an array of existing categories, with the name in the key and sort key in the value.
901 function getExistingProperties() {
902 $res = $this->mDb
->select( 'page_props', array( 'pp_propname', 'pp_value' ),
903 array( 'pp_page' => $this->mId
), __METHOD__
, $this->mOptions
);
905 foreach ( $res as $row ) {
906 $arr[$row->pp_propname
] = $row->pp_value
;
913 * Return the title object of the page being updated
915 function getTitle() {
916 return $this->mTitle
;
920 * Return the list of images used as generated by the parser
922 public function getImages() {
923 return $this->mImages
;
927 * Invalidate any necessary link lists related to page property changes
929 function invalidateProperties( $changed ) {
930 global $wgPagePropLinkInvalidations;
932 foreach ( $changed as $name => $value ) {
933 if ( isset( $wgPagePropLinkInvalidations[$name] ) ) {
934 $inv = $wgPagePropLinkInvalidations[$name];
935 if ( !is_array( $inv ) ) {
936 $inv = array( $inv );
938 foreach ( $inv as $table ) {
939 $update = new HTMLCacheUpdate( $this->mTitle
, $table );