2 rcs_id('$Id: WikiDB.php,v 1.153 2007-06-07 16:54:29 rurban Exp $');
4 require_once('lib/PageType.php');
7 * The classes in the file define the interface to the
11 * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
12 * Minor enhancements by Reini Urban
16 * Force the creation of a new revision.
17 * @see WikiDB_Page::createRevision()
19 if (!defined('WIKIDB_FORCE_CREATE'))
20 define('WIKIDB_FORCE_CREATE', -1);
23 * Abstract base class for the database used by PhpWiki.
25 * A <tt>WikiDB</tt> is a container for <tt>WikiDB_Page</tt>s which in
26 * turn contain <tt>WikiDB_PageRevision</tt>s.
28 * Conceptually a <tt>WikiDB</tt> contains all possible
29 * <tt>WikiDB_Page</tt>s, whether they have been initialized or not.
30 * Since all possible pages are already contained in a WikiDB, a call
31 * to WikiDB::getPage() will never fail (barring bugs and
32 * e.g. filesystem or SQL database problems.)
34 * Also each <tt>WikiDB_Page</tt> always contains at least one
35 * <tt>WikiDB_PageRevision</tt>: the default content (e.g. "Describe
36 * [PageName] here."). This default content has a version number of
39 * <tt>WikiDB_PageRevision</tt>s have read-only semantics. One can
40 * only create new revisions or delete old ones --- one can not modify
41 * an existing revision.
45 * Open a WikiDB database.
47 * This is a static member function. This function inspects its
48 * arguments to determine the proper subclass of WikiDB to
49 * instantiate, and then it instantiates it.
53 * @param hash $dbparams Database configuration parameters.
54 * Some pertinent paramters are:
57 * <dd> The back-end type. Current supported types are:
60 * <dd> Generic SQL backend based on the PEAR/DB database abstraction
61 * library. (More stable and conservative)
63 * <dd> Another generic SQL backend. (More current features are tested here. Much faster)
65 * <dd> Dba based backend. The default and by far the fastest.
73 * <dd> (Used by the SQL and ADODB backends.)
74 * The DSN specifying which database to connect to.
77 * <dd> Prefix to be prepended to database tables (and file names).
80 * <dd> (Used by the dba backend.)
81 * Which directory db files reside in.
84 * <dd> Used only by the dba backend so far.
85 * And: When optimizing mysql it closes timed out mysql processes.
86 * otherwise only used for dba: Timeout in seconds for opening (and
87 * obtaining lock) on the dbm file.
90 * <dd> (Used by the dba backend.)
92 * Which dba handler to use. Good choices are probably either
96 * @return WikiDB A WikiDB object.
98 function open ($dbparams) {
99 $dbtype = $dbparams{'dbtype'};
100 include_once("lib/WikiDB/$dbtype.php");
102 $class = 'WikiDB_' . $dbtype;
103 return new $class ($dbparams);
113 function WikiDB (&$backend, $dbparams) {
114 $this->_backend = &$backend;
115 // don't do the following with the auth_dsn!
116 if (isset($dbparams['auth_dsn'])) return;
118 $this->_cache = new WikiDB_cache($backend);
119 if (!empty($GLOBALS['request'])) $GLOBALS['request']->_dbi = $this;
121 // If the database doesn't yet have a timestamp, initialize it now.
122 if ($this->get('_timestamp') === false)
126 if ((int)DEBUG & _DEBUG_SQL) {
127 $this->_backend->check();
132 * Close database connection.
134 * The database may no longer be used after it is closed.
136 * Closing a WikiDB invalidates all <tt>WikiDB_Page</tt>s,
137 * <tt>WikiDB_PageRevision</tt>s and <tt>WikiDB_PageIterator</tt>s
138 * which have been obtained from it.
143 $this->_backend->close();
144 $this->_cache->close();
148 * Get a WikiDB_Page from a WikiDB.
150 * A {@link WikiDB} consists of the (infinite) set of all possible pages,
151 * therefore this method never fails.
154 * @param string $pagename Which page to get.
155 * @return WikiDB_Page The requested WikiDB_Page.
157 function getPage($pagename) {
158 static $error_displayed = false;
159 $pagename = (string) $pagename;
161 if ($pagename === '') {
162 if ($error_displayed) return false;
163 $error_displayed = true;
164 if (function_exists("xdebug_get_function_stack"))
165 var_dump(xdebug_get_function_stack());
166 trigger_error("empty pagename", E_USER_WARNING);
170 assert($pagename != '');
172 return new WikiDB_Page($this, $pagename);
176 * Determine whether page exists (in non-default form).
179 * $is_page = $dbi->isWikiPage($pagename);
183 * $page = $dbi->getPage($pagename);
184 * $current = $page->getCurrentRevision();
185 * $is_page = ! $current->hasDefaultContents();
187 * however isWikiPage may be implemented in a more efficient
188 * manner in certain back-ends.
191 * @param string $pagename string Which page to check.
192 * @return boolean True if the page actually exists with
193 * non-default contents in the WikiDataBase.
195 function isWikiPage ($pagename) {
196 $page = $this->getPage($pagename);
197 return ($page and $page->exists());
201 * Delete page from the WikiDB.
203 * Deletes the page from the WikiDB with the possibility to revert and diff.
204 * //Also resets all page meta-data to the default values.
206 * Note: purgePage() effectively destroys all revisions of the page from the WikiDB.
209 * @param string $pagename Name of page to delete.
212 function deletePage($pagename) {
213 // don't create empty revisions of already purged pages.
214 if ($this->_backend->get_latest_version($pagename))
215 $result = $this->_cache->delete_page($pagename);
219 /* Generate notification emails */
220 include_once("lib/MailNotify.php");
221 $MailNotify = new MailNotify($pagename);
222 $MailNotify->onDeletePage ($this, $pagename);
224 //How to create a RecentChanges entry with explaining summary? Dynamically
226 $page = $this->getPage($pagename);
227 $current = $page->getCurrentRevision();
228 $meta = $current->_data;
229 $version = $current->getVersion();
230 $meta['summary'] = _("removed");
231 $page->save($current->getPackedContent(), $version + 1, $meta);
237 * Completely remove the page from the WikiDB, without undo possibility.
239 * @param string $pagename Name of page to delete.
242 function purgePage($pagename) {
243 $result = $this->_cache->purge_page($pagename);
244 $this->deletePage($pagename); // just for the notification
249 * Retrieve all pages.
251 * Gets the set of all pages with non-default contents.
255 * @param boolean $include_empty Optional. Normally pages whose most
256 * recent revision has empty content are considered to be
257 * non-existant. Unless $include_defaulted is set to true, those
258 * pages will not be returned.
259 * @param string or false $sortby Optional. "+-column,+-column2".
260 * If false the result is faster in natural order.
261 * @param string or false $limit Optional. Encoded as "$offset,$count".
262 * $offset defaults to 0.
263 * @param string $exclude: Optional comma-seperated list of pagenames.
265 * @return WikiDB_PageIterator A WikiDB_PageIterator which contains all pages
266 * in the WikiDB which have non-default contents.
268 function getAllPages($include_empty=false, $sortby='', $limit='', $exclude='')
270 // HACK: memory_limit=8M will fail on too large pagesets. old php on unix only!
272 $mem = ini_get("memory_limit");
273 if ($mem and !$limit and !isWindows() and !check_php_version(4,3)) {
275 $GLOBALS['request']->setArg('limit', $limit);
276 $GLOBALS['request']->setArg('paging', 'auto');
279 $result = $this->_backend->get_all_pages($include_empty, $sortby, $limit,
281 return new WikiDB_PageIterator($this, $result,
282 array('include_empty' => $include_empty,
283 'exclude' => $exclude,
290 * @param boolean $include_empty If true include also empty pages
291 * @param string $exclude: comma-seperated list of pagenames.
292 * TBD: array of pagenames
296 function numPages($include_empty=false, $exclude='') {
297 if (method_exists($this->_backend, 'numPages'))
298 // FIXME: currently are all args ignored.
299 $count = $this->_backend->numPages($include_empty, $exclude);
301 // FIXME: exclude ignored.
302 $iter = $this->getAllPages($include_empty, false, false, $exclude);
303 $count = $iter->count();
312 * Search for pages containing (or not containing) certain words
315 * Pages are returned in alphabetical order whenever it is
316 * practical to do so.
317 * TODO: Sort by ranking. Only postgresql with tsearch2 can do ranking so far.
320 * @param TextSearchQuery $search A TextSearchQuery object
321 * @param string or false $sortby Optional. "+-column,+-column2".
322 * If false the result is faster in natural order.
323 * @param string or false $limit Optional. Encoded as "$offset,$count".
324 * $offset defaults to 0.
325 * @param string $exclude: Optional comma-seperated list of pagenames.
326 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
327 * @see TextSearchQuery
329 function titleSearch($search, $sortby='pagename', $limit='', $exclude='') {
330 $result = $this->_backend->text_search($search, false, $sortby, $limit, $exclude);
331 return new WikiDB_PageIterator($this, $result,
332 array('exclude' => $exclude,
339 * Search for pages containing (or not containing) certain words
340 * in their entire text (this includes the page content and the
343 * Pages are returned in alphabetical order whenever it is
344 * practical to do so.
345 * TODO: Sort by ranking. Only postgresql with tsearch2 can do ranking so far.
349 * @param TextSearchQuery $search A TextSearchQuery object.
350 * @param string or false $sortby Optional. "+-column,+-column2".
351 * If false the result is faster in natural order.
352 * @param string or false $limit Optional. Encoded as "$offset,$count".
353 * $offset defaults to 0.
354 * @param string $exclude: Optional comma-seperated list of pagenames.
355 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
356 * @see TextSearchQuery
358 function fullSearch($search, $sortby='pagename', $limit='', $exclude='') {
359 $result = $this->_backend->text_search($search, true, $sortby, $limit, $exclude);
360 return new WikiDB_PageIterator($this, $result,
361 array('exclude' => $exclude,
363 'stoplisted' => $result->stoplisted
368 * Find the pages with the greatest hit counts.
370 * Pages are returned in reverse order by hit count.
374 * @param integer $limit The maximum number of pages to return.
375 * Set $limit to zero to return all pages. If $limit < 0, pages will
376 * be sorted in decreasing order of popularity.
377 * @param string or false $sortby Optional. "+-column,+-column2".
378 * If false the result is faster in natural order.
380 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching
383 function mostPopular($limit = 20, $sortby = '-hits') {
384 $result = $this->_backend->most_popular($limit, $sortby);
385 return new WikiDB_PageIterator($this, $result);
389 * Find recent page revisions.
391 * Revisions are returned in reverse order by creation time.
395 * @param hash $params This hash is used to specify various optional
399 * <dd> (integer) At most this many revisions will be returned.
401 * <dd> (integer) Only revisions since this time (unix-timestamp)
403 * <dt> include_minor_revisions
404 * <dd> (boolean) Also include minor revisions. (Default is not to.)
405 * <dt> exclude_major_revisions
406 * <dd> (boolean) Don't include non-minor revisions.
407 * (Exclude_major_revisions implies include_minor_revisions.)
408 * <dt> include_all_revisions
409 * <dd> (boolean) Return all matching revisions for each page.
410 * Normally only the most recent matching revision is returned
414 * @return WikiDB_PageRevisionIterator A WikiDB_PageRevisionIterator
415 * containing the matching revisions.
417 function mostRecent($params = false) {
418 $result = $this->_backend->most_recent($params);
419 return new WikiDB_PageRevisionIterator($this, $result);
425 * @param string or false $sortby Optional. "+-column,+-column2".
426 * If false the result is faster in natural order.
427 * @param string or false $limit Optional. Encoded as "$offset,$count".
428 * $offset defaults to 0.
429 * @return Iterator A generic iterator containing rows of
430 * (duplicate) pagename, wantedfrom.
432 function wantedPages($exclude_from='', $exclude='', $sortby='', $limit='') {
433 return $this->_backend->wanted_pages($exclude_from, $exclude, $sortby, $limit);
434 //return new WikiDB_PageIterator($this, $result);
438 * Generic interface to the link table. Esp. useful to search for rdf triples as in
439 * SemanticSearch and ListRelations.
443 * @param $pages object A TextSearchQuery object.
444 * @param $search object A TextSearchQuery object.
445 * @param string $linktype One of "linkto", "linkfrom", "relation", "attribute".
446 * linktype parameter:
449 * <dd> search for simple out-links
451 * <dd> in-links, i.e BackLinks
453 * <dd> the first part in a <>::<> link
455 * <dd> the first part in a <>:=<> link
457 * @param $relation object An optional TextSearchQuery to match the
458 * relation name. Ignored on simple in-out links.
460 * @return Iterator A generic iterator containing links to pages or values.
461 * hash of "pagename", "linkname", "linkvalue.
463 function linkSearch($pages, $search, $linktype, $relation=false) {
464 return $this->_backend->link_search($pages, $search, $linktype, $relation);
468 * Return a simple list of all defined relations (and attributes), mainly
469 * for the SemanticSearch autocompletion.
473 * @return array of strings
475 function listRelations($also_attributes=false, $only_attributes=false, $sorted=true) {
476 if (method_exists($this->_backend, "list_relations"))
477 return $this->_backend->list_relations($also_attributes, $only_attributes, $sorted);
478 // dumb, slow fallback. no iter, so simply define it here.
479 $relations = array();
480 $iter = $this->getAllPages();
481 while ($page = $iter->next()) {
482 $reliter = $page->getRelations();
484 while ($rel = $reliter->next()) {
485 // if there's no pagename it's an attribute
486 $names[] = $rel->getName();
488 $relations = array_merge($relations, $names);
500 * Call the appropriate backend method.
503 * @param string $from Page to rename
504 * @param string $to New name
505 * @param boolean $updateWikiLinks If the text in all pages should be replaced.
506 * @return boolean true or false
508 function renamePage($from, $to, $updateWikiLinks = false) {
509 assert(is_string($from) && $from != '');
510 assert(is_string($to) && $to != '');
512 if (method_exists($this->_backend, 'rename_page')) {
513 $oldpage = $this->getPage($from);
514 $newpage = $this->getPage($to);
515 //update all WikiLinks in existing pages
516 //non-atomic! i.e. if rename fails the links are not undone
517 if ($updateWikiLinks) {
518 require_once('lib/plugin/WikiAdminSearchReplace.php');
519 $links = $oldpage->getBackLinks();
520 while ($linked_page = $links->next()) {
521 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,
522 $linked_page->getName(),
525 $links = $newpage->getBackLinks();
526 while ($linked_page = $links->next()) {
527 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,
528 $linked_page->getName(),
532 if ($oldpage->exists() and ! $newpage->exists()) {
533 if ($result = $this->_backend->rename_page($from, $to)) {
534 //create a RecentChanges entry with explaining summary
535 $page = $this->getPage($to);
536 $current = $page->getCurrentRevision();
537 $meta = $current->_data;
538 $version = $current->getVersion();
539 $meta['summary'] = sprintf(_("renamed from %s"), $from);
540 unset($meta['mtime']); // force new date
541 $page->save($current->getPackedContent(), $version + 1, $meta);
543 } elseif (!$oldpage->getCurrentRevision(false) and !$newpage->exists()) {
544 // if a version 0 exists try it also.
545 $result = $this->_backend->rename_page($from, $to);
548 trigger_error(_("WikiDB::renamePage() not yet implemented for this backend"),
551 /* Generate notification emails? */
552 if ($result and !isa($GLOBALS['request'], 'MockRequest')) {
553 $notify = $this->get('notify');
554 if (!empty($notify) and is_array($notify)) {
555 include_once("lib/MailNotify.php");
556 $MailNotify = new MailNotify($from);
557 $MailNotify->onRenamePage ($this, $from, $to);
563 /** Get timestamp when database was last modified.
565 * @return string A string consisting of two integers,
566 * separated by a space. The first is the time in
567 * unix timestamp format, the second is a modification
568 * count for the database.
570 * The idea is that you can cast the return value to an
571 * int to get a timestamp, or you can use the string value
572 * as a good hash for the entire database.
574 function getTimestamp() {
575 $ts = $this->get('_timestamp');
576 return sprintf("%d %d", $ts[0], $ts[1]);
580 * Update the database timestamp.
584 $ts = $this->get('_timestamp');
585 $this->set('_timestamp', array(time(), $ts[1] + 1));
589 * Roughly similar to the float in phpwiki_version(). Set by action=upgrade.
591 function get_db_version() {
592 return (float) $this->get('_db_version');
594 function set_db_version($ver) {
595 return $this->set('_db_version', (float)$ver);
599 * Access WikiDB global meta-data.
601 * NOTE: this is currently implemented in a hackish and
602 * not very efficient manner.
606 * @param string $key Which meta data to get.
607 * Some reserved meta-data keys are:
609 * <dt>'_timestamp' <dd> Data used by getTimestamp().
612 * @return scalar The requested value, or false if the requested data
616 if (!$key || $key[0] == '%')
619 * Hack Alert: We can use any page (existing or not) to store
620 * this data (as long as we always use the same one.)
622 $gd = $this->getPage('global_data');
623 $data = $gd->get('__global');
625 if ($data && isset($data[$key]))
632 * Set global meta-data.
634 * NOTE: this is currently implemented in a hackish and
635 * not very efficient manner.
640 * @param string $key Meta-data key to set.
641 * @param string $newval New value.
643 function set($key, $newval) {
644 if (!$key || $key[0] == '%')
647 $gd = $this->getPage('global_data');
648 $data = $gd->get('__global');
655 $data[$key] = $newval;
657 $gd->set('__global', $data);
660 /* TODO: these are really backend methods */
662 // SQL result: for simple select or create/update queries
663 // returns the database specific resource type
664 function genericSqlQuery($sql, $args=false) {
665 if (function_exists('debug_backtrace')) { // >= 4.3.0
666 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
668 trigger_error("no SQL database", E_USER_ERROR);
672 // SQL iter: for simple select or create/update queries
673 // returns the generic iterator object (count,next)
674 function genericSqlIter($sql, $field_list = NULL) {
675 if (function_exists('debug_backtrace')) { // >= 4.3.0
676 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
678 trigger_error("no SQL database", E_USER_ERROR);
682 // see backend upstream methods
683 // ADODB adds surrounding quotes, SQL not yet!
684 function quote ($s) {
690 if (!$request->_dbi) return false;
691 else return false; /* so far only needed for sql so false it.
692 later we have to check dba also */
695 function getParam($param) {
697 if (isset($DBParams[$param])) return $DBParams[$param];
698 elseif ($param == 'prefix') return '';
702 function getAuthParam($param) {
703 global $DBAuthParams;
704 if (isset($DBAuthParams[$param])) return $DBAuthParams[$param];
705 elseif ($param == 'USER_AUTH_ORDER') return $GLOBALS['USER_AUTH_ORDER'];
706 elseif ($param == 'USER_AUTH_POLICY') return $GLOBALS['USER_AUTH_POLICY'];
713 * An abstract base class which representing a wiki-page within a
716 * A WikiDB_Page contains a number (at least one) of
717 * WikiDB_PageRevisions.
721 function WikiDB_Page(&$wikidb, $pagename) {
722 $this->_wikidb = &$wikidb;
723 $this->_pagename = $pagename;
725 if (!(is_string($pagename) and $pagename != '')) {
726 if (function_exists("xdebug_get_function_stack")) {
727 echo "xdebug_get_function_stack(): "; var_dump(xdebug_get_function_stack());
728 } elseif (function_exists("debug_backtrace")) { // >= 4.3.0
729 printSimpleTrace(debug_backtrace());
731 trigger_error("empty pagename", E_USER_WARNING);
735 assert(is_string($pagename) and $pagename != '');
740 * Get the name of the wiki page.
744 * @return string The page name.
747 return $this->_pagename;
750 // To reduce the memory footprint for larger sets of pagelists,
751 // we don't cache the content (only true or false) and
752 // we purge the pagedata (_cached_html) also
754 if (isset($this->_wikidb->_cache->_id_cache[$this->_pagename])) return true;
755 $current = $this->getCurrentRevision(false);
756 if (!$current) return false;
757 return ! $current->hasDefaultContents();
761 * Delete an old revision of a WikiDB_Page.
763 * Deletes the specified revision of the page.
764 * It is a fatal error to attempt to delete the current revision.
768 * @param integer $version Which revision to delete. (You can also
769 * use a WikiDB_PageRevision object here.)
771 function deleteRevision($version) {
772 $backend = &$this->_wikidb->_backend;
773 $cache = &$this->_wikidb->_cache;
774 $pagename = &$this->_pagename;
776 $version = $this->_coerce_to_version($version);
780 $backend->lock(array('page','version'));
781 $latestversion = $cache->get_latest_version($pagename);
782 if ($latestversion && ($version == $latestversion)) {
783 $backend->unlock(array('page','version'));
784 trigger_error(sprintf("Attempt to delete most recent revision of '%s'",
785 $pagename), E_USER_ERROR);
789 $cache->delete_versiondata($pagename, $version);
790 $backend->unlock(array('page','version'));
794 * Delete a revision, or possibly merge it with a previous
798 * Suppose an author make a (major) edit to a page. Shortly
799 * after that the same author makes a minor edit (e.g. to fix
800 * spelling mistakes he just made.)
802 * Now some time later, where cleaning out old saved revisions,
803 * and would like to delete his minor revision (since there's
804 * really no point in keeping minor revisions around for a long
807 * Note that the text after the minor revision probably represents
808 * what the author intended to write better than the text after
809 * the preceding major edit.
811 * So what we really want to do is merge the minor edit with the
814 * We will only do this when:
816 * <li>The revision being deleted is a minor one, and
817 * <li>It has the same author as the immediately preceding revision.
820 function mergeRevision($version) {
821 $backend = &$this->_wikidb->_backend;
822 $cache = &$this->_wikidb->_cache;
823 $pagename = &$this->_pagename;
825 $version = $this->_coerce_to_version($version);
829 $backend->lock(array('version'));
830 $latestversion = $cache->get_latest_version($pagename);
831 if ($latestversion && $version == $latestversion) {
832 $backend->unlock(array('version'));
833 trigger_error(sprintf("Attempt to merge most recent revision of '%s'",
834 $pagename), E_USER_ERROR);
838 $versiondata = $cache->get_versiondata($pagename, $version, true);
840 // Not there? ... we're done!
841 $backend->unlock(array('version'));
845 if ($versiondata['is_minor_edit']) {
846 $previous = $backend->get_previous_version($pagename, $version);
848 $prevdata = $cache->get_versiondata($pagename, $previous);
849 if ($prevdata['author_id'] == $versiondata['author_id']) {
850 // This is a minor revision, previous version is
851 // by the same author. We will merge the
853 $cache->update_versiondata($pagename, $previous,
854 array('%content' => $versiondata['%content'],
855 '_supplanted' => $versiondata['_supplanted']));
860 $cache->delete_versiondata($pagename, $version);
861 $backend->unlock(array('version'));
866 * Create a new revision of a {@link WikiDB_Page}.
870 * @param int $version Version number for new revision.
871 * To ensure proper serialization of edits, $version must be
872 * exactly one higher than the current latest version.
873 * (You can defeat this check by setting $version to
874 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
876 * @param string $content Contents of new revision.
878 * @param hash $metadata Metadata for new revision.
879 * All values in the hash should be scalars (strings or integers).
881 * @param hash $links List of linkto=>pagename, relation=>pagename which this page links to.
883 * @return WikiDB_PageRevision Returns the new WikiDB_PageRevision object. If
884 * $version was incorrect, returns false
886 function createRevision($version, &$content, $metadata, $links) {
887 $backend = &$this->_wikidb->_backend;
888 $cache = &$this->_wikidb->_cache;
889 $pagename = &$this->_pagename;
890 $cache->invalidate_cache($pagename);
892 $backend->lock(array('version','page','recent','link','nonempty'));
894 $latestversion = $backend->get_latest_version($pagename);
895 $newversion = ($latestversion ? $latestversion : 0) + 1;
896 assert($newversion >= 1);
898 if ($version != WIKIDB_FORCE_CREATE and $version != $newversion) {
899 $backend->unlock(array('version','page','recent','link','nonempty'));
905 foreach ($data as $key => $val) {
906 if (empty($val) || $key[0] == '_' || $key[0] == '%')
910 assert(!empty($data['author']));
911 if (empty($data['author_id']))
912 @$data['author_id'] = $data['author'];
914 if (empty($data['mtime']))
915 $data['mtime'] = time();
917 if ($latestversion and $version != WIKIDB_FORCE_CREATE) {
918 // Ensure mtimes are monotonic.
919 $pdata = $cache->get_versiondata($pagename, $latestversion);
920 if ($data['mtime'] < $pdata['mtime']) {
921 trigger_error(sprintf(_("%s: Date of new revision is %s"),
922 $pagename,"'non-monotonic'"),
924 $data['orig_mtime'] = $data['mtime'];
925 $data['mtime'] = $pdata['mtime'];
928 // FIXME: use (possibly user specified) 'mtime' time or
930 $cache->update_versiondata($pagename, $latestversion,
931 array('_supplanted' => $data['mtime']));
934 $data['%content'] = &$content;
936 $cache->set_versiondata($pagename, $newversion, $data);
938 //$cache->update_pagedata($pagename, array(':latestversion' => $newversion,
939 //':deleted' => empty($content)));
941 $backend->set_links($pagename, $links);
943 $backend->unlock(array('version','page','recent','link','nonempty'));
945 return new WikiDB_PageRevision($this->_wikidb, $pagename, $newversion,
949 /** A higher-level interface to createRevision.
951 * This takes care of computing the links, and storing
952 * a cached version of the transformed wiki-text.
954 * @param string $wikitext The page content.
956 * @param int $version Version number for new revision.
957 * To ensure proper serialization of edits, $version must be
958 * exactly one higher than the current latest version.
959 * (You can defeat this check by setting $version to
960 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
962 * @param hash $meta Meta-data for new revision.
964 function save($wikitext, $version, $meta, $formatted = null) {
965 if (is_null($formatted))
966 $formatted = new TransformedText($this, $wikitext, $meta);
967 $type = $formatted->getType();
968 $meta['pagetype'] = $type->getName();
969 $links = $formatted->getWikiPageLinks(); // linkto => relation
970 $attributes = array();
971 foreach ($links as $link) {
972 if ($link['linkto'] === "" and $link['relation']) {
973 $attributes[$link['relation']] = $this->getAttribute($link['relation']);
976 $meta['attribute'] = $attributes;
978 $backend = &$this->_wikidb->_backend;
979 $newrevision = $this->createRevision($version, $wikitext, $meta, $links);
980 if ($newrevision and !WIKIDB_NOCACHE_MARKUP)
981 $this->set('_cached_html', $formatted->pack());
983 // FIXME: probably should have some global state information
984 // in the backend to control when to optimize.
986 // We're doing this here rather than in createRevision because
987 // postgresql can't optimize while locked.
988 if (((int)DEBUG & _DEBUG_SQL)
989 or (DATABASE_OPTIMISE_FREQUENCY > 0 and
990 (time() % DATABASE_OPTIMISE_FREQUENCY == 0))) {
991 if ($backend->optimize()) {
993 trigger_error(_("Optimizing database"), E_USER_NOTICE);
997 /* Generate notification emails? */
998 if (isa($newrevision, 'WikiDB_PageRevision')) {
999 // Save didn't fail because of concurrent updates.
1000 $notify = $this->_wikidb->get('notify');
1002 and is_array($notify)
1003 and !isa($GLOBALS['request'],'MockRequest'))
1005 include_once("lib/MailNotify.php");
1006 $MailNotify = new MailNotify($newrevision->getName());
1007 $MailNotify->onChangePage ($this->_wikidb, $wikitext, $version, $meta);
1009 $newrevision->_transformedContent = $formatted;
1012 return $newrevision;
1016 * Get the most recent revision of a page.
1020 * @return WikiDB_PageRevision The current WikiDB_PageRevision object.
1022 function getCurrentRevision ($need_content=true) {
1023 $backend = &$this->_wikidb->_backend;
1024 $cache = &$this->_wikidb->_cache;
1025 $pagename = &$this->_pagename;
1027 // Prevent deadlock in case of memory exhausted errors
1028 // Pure selection doesn't really need locking here.
1029 // sf.net bug#927395
1030 // I know it would be better to lock, but with lots of pages this deadlock is more
1031 // severe than occasionally get not the latest revision.
1032 // In spirit to wikiwiki: read fast, edit slower.
1034 $version = $cache->get_latest_version($pagename);
1035 // getRevision gets the content also!
1036 $revision = $this->getRevision($version, $need_content);
1037 //$backend->unlock();
1043 * Get a specific revision of a WikiDB_Page.
1047 * @param integer $version Which revision to get.
1049 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or
1050 * false if the requested revision does not exist in the {@link WikiDB}.
1051 * Note that version zero of any page always exists.
1053 function getRevision ($version, $need_content=true) {
1054 $cache = &$this->_wikidb->_cache;
1055 $pagename = &$this->_pagename;
1057 if (! $version or $version == -1) // 0 or false
1058 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1060 assert($version > 0);
1061 $vdata = $cache->get_versiondata($pagename, $version, $need_content);
1063 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1065 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1070 * Get previous page revision.
1072 * This method find the most recent revision before a specified
1077 * @param integer $version Find most recent revision before this version.
1078 * You can also use a WikiDB_PageRevision object to specify the $version.
1080 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or false if the
1081 * requested revision does not exist in the {@link WikiDB}. Note that
1082 * unless $version is greater than zero, a revision (perhaps version zero,
1083 * the default revision) will always be found.
1085 function getRevisionBefore ($version=false, $need_content=true) {
1086 $backend = &$this->_wikidb->_backend;
1087 $pagename = &$this->_pagename;
1088 if ($version === false)
1089 $version = $this->_wikidb->_cache->get_latest_version($pagename);
1091 $version = $this->_coerce_to_version($version);
1096 $previous = $backend->get_previous_version($pagename, $version);
1097 $revision = $this->getRevision($previous, $need_content);
1098 //$backend->unlock();
1104 * Get all revisions of the WikiDB_Page.
1106 * This does not include the version zero (default) revision in the
1107 * returned revision set.
1109 * @return WikiDB_PageRevisionIterator A
1110 * WikiDB_PageRevisionIterator containing all revisions of this
1111 * WikiDB_Page in reverse order by version number.
1113 function getAllRevisions() {
1114 $backend = &$this->_wikidb->_backend;
1115 $revs = $backend->get_all_revisions($this->_pagename);
1116 return new WikiDB_PageRevisionIterator($this->_wikidb, $revs);
1120 * Find pages which link to or are linked from a page.
1121 * relations: $backend->get_links is responsible to add the relation to the pagehash
1122 * as 'linkrelation' key as pagename. See WikiDB_PageIterator::next
1123 * if (isset($next['linkrelation']))
1127 * @param boolean $reversed Which links to find: true for backlinks (default).
1129 * @return WikiDB_PageIterator A WikiDB_PageIterator containing
1130 * all matching pages.
1132 function getLinks ($reversed=true, $include_empty=false, $sortby='',
1133 $limit='', $exclude='', $want_relations=false)
1135 $backend = &$this->_wikidb->_backend;
1136 $result = $backend->get_links($this->_pagename, $reversed,
1137 $include_empty, $sortby, $limit, $exclude,
1139 return new WikiDB_PageIterator($this->_wikidb, $result,
1140 array('include_empty' => $include_empty,
1141 'sortby' => $sortby,
1143 'exclude' => $exclude,
1144 'want_relations'=> $want_relations));
1148 * All Links from other pages to this page.
1150 function getBackLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1151 $want_relations=false)
1153 return $this->getLinks(true, $include_empty, $sortby, $limit, $exclude);
1156 * Forward Links: All Links from this page to other pages.
1158 function getPageLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1159 $want_relations=false)
1161 return $this->getLinks(false, $include_empty, $sortby, $limit, $exclude);
1164 * Relations: All links from this page to other pages with relation <> 0.
1165 * is_a:=page or population:=number
1167 function getRelations($sortby='', $limit='', $exclude='') {
1168 $backend = &$this->_wikidb->_backend;
1169 $result = $backend->get_links($this->_pagename, false, true,
1170 $sortby, $limit, $exclude,
1172 // we do not care for the linked page versiondata, just the pagename and linkrelation
1173 return new WikiDB_PageIterator($this->_wikidb, $result,
1174 array('include_empty' => true,
1175 'sortby' => $sortby,
1177 'exclude' => $exclude,
1178 'want_relations'=> true));
1182 * possibly faster link existance check. not yet accelerated.
1184 function existLink($link, $reversed=false) {
1185 $backend = &$this->_wikidb->_backend;
1186 if (method_exists($backend,'exists_link'))
1187 return $backend->exists_link($this->_pagename, $link, $reversed);
1188 //$cache = &$this->_wikidb->_cache;
1189 // TODO: check cache if it is possible
1190 $iter = $this->getLinks($reversed, false);
1191 while ($page = $iter->next()) {
1192 if ($page->getName() == $link)
1199 /* Semantic relations are links with the relation pointing to another page,
1200 the so-called "RDF Triple".
1201 [San Diego] is%20a::city
1202 => "At the page San Diego there is a relation link of 'is a' to the page 'city'."
1205 /* Semantic attributes for a page.
1206 [San Diego] population:=1,305,736
1207 Attributes are links with the relation pointing to another page.
1211 * Access WikiDB_Page non version-specific meta-data.
1215 * @param string $key Which meta data to get.
1216 * Some reserved meta-data keys are:
1218 * <dt>'date' <dd> Created as unixtime
1219 * <dt>'locked'<dd> Is page locked? 'yes' or 'no'
1220 * <dt>'hits' <dd> Page hit counter.
1221 * <dt>'_cached_html' <dd> Transformed CachedMarkup object, serialized + optionally gzipped.
1222 * In SQL stored now in an extra column.
1224 * <dt>'pref' <dd> Users preferences, stored only in homepages.
1225 * <dt>'owner' <dd> Default: first author_id. We might add a group with a dot here:
1226 * E.g. "owner.users"
1227 * <dt>'perm' <dd> Permission flag to authorize read/write/execution of
1228 * page-headers and content.
1229 + <dt>'moderation'<dd> ModeratedPage data
1230 * <dt>'score' <dd> Page score (not yet implement, do we need?)
1233 * @return scalar The requested value, or false if the requested data
1236 function get($key) {
1237 $cache = &$this->_wikidb->_cache;
1238 $backend = &$this->_wikidb->_backend;
1239 if (!$key || $key[0] == '%')
1241 // several new SQL backends optimize this.
1242 if (!WIKIDB_NOCACHE_MARKUP
1243 and $key == '_cached_html'
1244 and method_exists($backend, 'get_cached_html'))
1246 return $backend->get_cached_html($this->_pagename);
1248 $data = $cache->get_pagedata($this->_pagename);
1249 return isset($data[$key]) ? $data[$key] : false;
1253 * Get all the page meta-data as a hash.
1255 * @return hash The page meta-data.
1257 function getMetaData() {
1258 $cache = &$this->_wikidb->_cache;
1259 $data = $cache->get_pagedata($this->_pagename);
1261 foreach ($data as $key => $val) {
1262 if (/*!empty($val) &&*/ $key[0] != '%')
1269 * Set page meta-data.
1274 * @param string $key Meta-data key to set.
1275 * @param string $newval New value.
1277 function set($key, $newval) {
1278 $cache = &$this->_wikidb->_cache;
1279 $backend = &$this->_wikidb->_backend;
1280 $pagename = &$this->_pagename;
1282 assert($key && $key[0] != '%');
1284 // several new SQL backends optimize this.
1285 if (!WIKIDB_NOCACHE_MARKUP
1286 and $key == '_cached_html'
1287 and method_exists($backend, 'set_cached_html'))
1289 return $backend->set_cached_html($pagename, $newval);
1292 $data = $cache->get_pagedata($pagename);
1294 if (!empty($newval)) {
1295 if (!empty($data[$key]) && $data[$key] == $newval)
1296 return; // values identical, skip update.
1299 if (empty($data[$key]))
1300 return; // values identical, skip update.
1303 $cache->update_pagedata($pagename, array($key => $newval));
1307 * Increase page hit count.
1309 * FIXME: IS this needed? Probably not.
1311 * This is a convenience function.
1312 * <pre> $page->increaseHitCount(); </pre>
1313 * is functionally identical to
1314 * <pre> $page->set('hits',$page->get('hits')+1); </pre>
1315 * but less expensive (ignores the pagadata string)
1317 * Note that this method may be implemented in more efficient ways
1318 * in certain backends.
1322 function increaseHitCount() {
1323 if (method_exists($this->_wikidb->_backend, 'increaseHitCount'))
1324 $this->_wikidb->_backend->increaseHitCount($this->_pagename);
1326 @$newhits = $this->get('hits') + 1;
1327 $this->set('hits', $newhits);
1332 * Return a string representation of the WikiDB_Page
1334 * This is really only for debugging.
1338 * @return string Printable representation of the WikiDB_Page.
1340 function asString () {
1342 printf("[%s:%s\n", get_class($this), $this->getName());
1343 print_r($this->getMetaData());
1345 $strval = ob_get_contents();
1353 * @param integer_or_object $version_or_pagerevision
1354 * Takes either the version number (and int) or a WikiDB_PageRevision
1356 * @return integer The version number.
1358 function _coerce_to_version($version_or_pagerevision) {
1359 if (method_exists($version_or_pagerevision, "getContent"))
1360 $version = $version_or_pagerevision->getVersion();
1362 $version = (int) $version_or_pagerevision;
1364 assert($version >= 0);
1368 function isUserPage ($include_empty = true) {
1369 if (!$include_empty and !$this->exists()) return false;
1370 return $this->get('pref') ? true : false;
1373 // May be empty. Either the stored owner (/Chown), or the first authorized author
1374 function getOwner() {
1375 if ($owner = $this->get('owner'))
1376 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1377 // check all revisions forwards for the first author_id
1378 $backend = &$this->_wikidb->_backend;
1379 $pagename = &$this->_pagename;
1380 $latestversion = $backend->get_latest_version($pagename);
1381 for ($v=1; $v <= $latestversion; $v++) {
1382 $rev = $this->getRevision($v,false);
1383 if ($rev and $owner = $rev->get('author_id')) {
1384 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1390 // The authenticated author of the first revision or empty if not authenticated then.
1391 function getCreator() {
1392 if ($current = $this->getRevision(1,false)) return $current->get('author_id');
1396 // The authenticated author of the current revision.
1397 function getAuthor() {
1398 if ($current = $this->getCurrentRevision(false)) return $current->get('author_id');
1402 /* Semantic Web value, not stored in the links.
1403 * todo: unify with some unit knowledge
1405 function setAttribute($relation, $value) {
1406 $attr = $this->get('attributes');
1408 $attr = array($relation => $value);
1410 $attr[$relation] = $value;
1411 $this->set('attributes', $attr);
1414 function getAttribute($relation) {
1415 $meta = $this->get('attributes');
1419 return $meta[$relation];
1425 * This class represents a specific revision of a WikiDB_Page within
1428 * A WikiDB_PageRevision has read-only semantics. You may only create
1429 * new revisions (and delete old ones) --- you cannot modify existing
1432 class WikiDB_PageRevision
1434 //var $_transformedContent = false; // set by WikiDB_Page::save()
1436 function WikiDB_PageRevision(&$wikidb, $pagename, $version, $versiondata = false) {
1437 $this->_wikidb = &$wikidb;
1438 $this->_pagename = $pagename;
1439 $this->_version = $version;
1440 $this->_data = $versiondata ? $versiondata : array();
1441 $this->_transformedContent = false; // set by WikiDB_Page::save()
1445 * Get the WikiDB_Page which this revision belongs to.
1449 * @return WikiDB_Page The WikiDB_Page which this revision belongs to.
1451 function getPage() {
1452 return new WikiDB_Page($this->_wikidb, $this->_pagename);
1456 * Get the version number of this revision.
1460 * @return integer The version number of this revision.
1462 function getVersion() {
1463 return $this->_version;
1467 * Determine whether this revision has defaulted content.
1469 * The default revision (version 0) of each page, as well as any
1470 * pages which are created with empty content have their content
1471 * defaulted to something like:
1473 * Describe [ThisPage] here.
1478 * @return boolean Returns true if the page has default content.
1480 function hasDefaultContents() {
1481 $data = &$this->_data;
1482 return empty($data['%content']); // FIXME: what if it's the number 0? <>'' or === false
1486 * Get the content as an array of lines.
1490 * @return array An array of lines.
1491 * The lines should contain no trailing white space.
1493 function getContent() {
1494 return explode("\n", $this->getPackedContent());
1498 * Get the pagename of the revision.
1502 * @return string pagename.
1504 function getPageName() {
1505 return $this->_pagename;
1507 function getName() {
1508 return $this->_pagename;
1512 * Determine whether revision is the latest.
1516 * @return boolean True iff the revision is the latest (most recent) one.
1518 function isCurrent() {
1519 if (!isset($this->_iscurrent)) {
1520 $page = $this->getPage();
1521 $current = $page->getCurrentRevision(false);
1522 $this->_iscurrent = $this->getVersion() == $current->getVersion();
1524 return $this->_iscurrent;
1528 * Get the transformed content of a page.
1530 * @param string $pagetype Override the page-type of the revision.
1532 * @return object An XmlContent-like object containing the page transformed
1535 function getTransformedContent($pagetype_override=false) {
1536 $backend = &$this->_wikidb->_backend;
1538 if ($pagetype_override) {
1539 // Figure out the normal page-type for this page.
1540 $type = PageType::GetPageType($this->get('pagetype'));
1541 if ($type->getName() == $pagetype_override)
1542 $pagetype_override = false; // Not really an override...
1545 if ($pagetype_override) {
1546 // Overriden page type, don't cache (or check cache).
1547 return new TransformedText($this->getPage(),
1548 $this->getPackedContent(),
1549 $this->getMetaData(),
1550 $pagetype_override);
1553 $possibly_cache_results = true;
1555 if (!USECACHE or WIKIDB_NOCACHE_MARKUP) {
1556 if (WIKIDB_NOCACHE_MARKUP == 'purge') {
1557 // flush cache for this page.
1558 $page = $this->getPage();
1559 $page->set('_cached_html', ''); // ignored with !USECACHE
1561 $possibly_cache_results = false;
1563 elseif (USECACHE and !$this->_transformedContent) {
1565 if ($this->isCurrent()) {
1566 $page = $this->getPage();
1567 $this->_transformedContent = TransformedText::unpack($page->get('_cached_html'));
1570 $possibly_cache_results = false;
1572 //$backend->unlock();
1575 if (!$this->_transformedContent) {
1576 $this->_transformedContent
1577 = new TransformedText($this->getPage(),
1578 $this->getPackedContent(),
1579 $this->getMetaData());
1581 if ($possibly_cache_results and !WIKIDB_NOCACHE_MARKUP) {
1582 // If we're still the current version, cache the transfomed page.
1584 if ($this->isCurrent()) {
1585 $page->set('_cached_html', $this->_transformedContent->pack());
1587 //$backend->unlock();
1591 return $this->_transformedContent;
1595 * Get the content as a string.
1599 * @return string The page content.
1600 * Lines are separated by new-lines.
1602 function getPackedContent() {
1603 $data = &$this->_data;
1605 if (empty($data['%content'])
1606 || (!$this->_wikidb->isWikiPage($this->_pagename)
1607 && $this->isCurrent())) {
1608 include_once('lib/InlineParser.php');
1610 // A feature similar to taglines at http://www.wlug.org.nz/
1611 // Lib from http://www.aasted.org/quote/
1612 if (defined('FORTUNE_DIR')
1613 and is_dir(FORTUNE_DIR)
1614 and in_array($GLOBALS['request']->getArg('action'),
1615 array('create','edit')))
1617 include_once("lib/fortune.php");
1618 $fortune = new Fortune();
1619 $quote = $fortune->quoteFromDir(FORTUNE_DIR);
1621 $quote = "<verbatim>\n"
1622 . str_replace("\n<br>","\n", $quote)
1623 . "</verbatim>\n\n";
1627 . sprintf(_("Describe %s here."),
1628 "[" . WikiEscape($this->_pagename) . "]");
1630 // Replace empty content with default value.
1631 return sprintf(_("Describe %s here."),
1632 "[" . WikiEscape($this->_pagename) . "]");
1635 // There is (non-default) content.
1636 assert($this->_version > 0);
1638 if (!is_string($data['%content'])) {
1639 // Content was not provided to us at init time.
1640 // (This is allowed because for some backends, fetching
1641 // the content may be expensive, and often is not wanted
1644 // In any case, now we need to get it.
1645 $data['%content'] = $this->_get_content();
1646 assert(is_string($data['%content']));
1649 return $data['%content'];
1652 function _get_content() {
1653 $cache = &$this->_wikidb->_cache;
1654 $pagename = $this->_pagename;
1655 $version = $this->_version;
1657 assert($version > 0);
1659 $newdata = $cache->get_versiondata($pagename, $version, true);
1661 assert(is_string($newdata['%content']));
1662 return $newdata['%content'];
1665 // else revision has been deleted... What to do?
1666 return __sprintf("Oops! Revision %s of %s seems to have been deleted!",
1667 $version, $pagename);
1672 * Get meta-data for this revision.
1677 * @param string $key Which meta-data to access.
1679 * Some reserved revision meta-data keys are:
1681 * <dt> 'mtime' <dd> Time this revision was created (seconds since midnight Jan 1, 1970.)
1682 * The 'mtime' meta-value is normally set automatically by the database
1683 * backend, but it may be specified explicitly when creating a new revision.
1685 * <dd> To ensure consistency of RecentChanges, the mtimes of the versions
1686 * of a page must be monotonically increasing. If an attempt is
1687 * made to create a new revision with an mtime less than that of
1688 * the preceeding revision, the new revisions timestamp is force
1689 * to be equal to that of the preceeding revision. In that case,
1690 * the originally requested mtime is preserved in 'orig_mtime'.
1691 * <dt> '_supplanted' <dd> Time this revision ceased to be the most recent.
1692 * This meta-value is <em>always</em> automatically maintained by the database
1693 * backend. (It is set from the 'mtime' meta-value of the superceding
1694 * revision.) '_supplanted' has a value of 'false' for the current revision.
1696 * FIXME: this could be refactored:
1698 * <dd> Author of the page (as he should be reported in, e.g. RecentChanges.)
1700 * <dd> Authenticated author of a page. This is used to identify
1701 * the distinctness of authors when cleaning old revisions from
1703 * <dt> 'is_minor_edit' <dd> Set if change was marked as a minor revision by the author.
1704 * <dt> 'summary' <dd> Short change summary entered by page author.
1707 * Meta-data keys must be valid C identifers (they have to start with a letter
1708 * or underscore, and can contain only alphanumerics and underscores.)
1710 * @return string The requested value, or false if the requested value
1713 function get($key) {
1714 if (!$key || $key[0] == '%')
1716 $data = &$this->_data;
1717 return isset($data[$key]) ? $data[$key] : false;
1721 * Get all the revision page meta-data as a hash.
1723 * @return hash The revision meta-data.
1725 function getMetaData() {
1727 foreach ($this->_data as $key => $val) {
1728 if (!empty($val) && $key[0] != '%')
1736 * Return a string representation of the revision.
1738 * This is really only for debugging.
1742 * @return string Printable representation of the WikiDB_Page.
1744 function asString () {
1746 printf("[%s:%d\n", get_class($this), $this->get('version'));
1747 print_r($this->_data);
1748 echo $this->getPackedContent() . "\n]\n";
1749 $strval = ob_get_contents();
1757 * Class representing a sequence of WikiDB_Pages.
1758 * TODO: Enhance to php5 iterators
1760 * apply filters for options like 'sortby', 'limit', 'exclude'
1761 * for simple queries like titleSearch, where the backend is not ready yet.
1763 class WikiDB_PageIterator
1765 function WikiDB_PageIterator(&$wikidb, &$iter, $options=false) {
1766 $this->_iter = $iter; // a WikiDB_backend_iterator
1767 $this->_wikidb = &$wikidb;
1768 $this->_options = $options;
1772 return $this->_iter->count();
1776 * Get next WikiDB_Page in sequence.
1780 * @return WikiDB_Page The next WikiDB_Page in the sequence.
1783 if ( ! ($next = $this->_iter->next()) )
1786 $pagename = &$next['pagename'];
1787 if (!is_string($pagename)) { // Bug #1327912 fixed by Joachim Lous
1788 /*if (is_array($pagename) && isset($pagename['linkto'])) {
1789 $pagename = $pagename['linkto'];
1791 $pagename = strval($pagename);*/
1792 trigger_error("WikiDB_PageIterator->next pagename", E_USER_WARNING);
1795 if (isset($next['linkrelation'])
1796 or isset($next['pagedata']['linkrelation'])) return false;
1797 trigger_error('empty pagename in WikiDB_PageIterator::next()', E_USER_WARNING);
1801 // There's always hits, but we cache only if more
1802 // (well not with file, cvs and dba)
1803 if (isset($next['pagedata']) and count($next['pagedata']) > 1) {
1804 $this->_wikidb->_cache->cache_data($next);
1805 // cache existing page id's since we iterate over all links in GleanDescription
1806 // and need them later for LinkExistingWord
1807 } elseif ($this->_options and array_key_exists('include_empty', $this->_options)
1808 and !$this->_options['include_empty'] and isset($next['id'])) {
1809 $this->_wikidb->_cache->_id_cache[$next['pagename']] = $next['id'];
1811 $page = new WikiDB_Page($this->_wikidb, $pagename);
1812 if (isset($next['linkrelation']))
1813 $page->set('linkrelation', $next['linkrelation']);
1818 * Release resources held by this iterator.
1820 * The iterator may not be used after free() is called.
1822 * There is no need to call free(), if next() has returned false.
1823 * (I.e. if you iterate through all the pages in the sequence,
1824 * you do not need to call free() --- you only need to call it
1825 * if you stop before the end of the iterator is reached.)
1830 $this->_iter->free();
1833 function asArray() {
1835 while ($page = $this->next())
1842 * Apply filters for options like 'sortby', 'limit', 'exclude'
1843 * for simple queries like titleSearch, where the backend is not ready yet.
1844 * Since iteration is usually destructive for SQL results,
1845 * we have to generate a copy.
1847 function applyFilters($options = false) {
1848 if (!$options) $options = $this->_options;
1849 if (isset($options['sortby'])) {
1851 /* this is destructive */
1852 while ($page = $this->next())
1853 $result[] = $page->getName();
1854 $this->_doSort($array, $options['sortby']);
1856 /* the rest is not destructive.
1857 * reconstruct a new iterator
1859 $pagenames = array(); $i = 0;
1860 if (isset($options['limit']))
1861 $limit = $options['limit'];
1864 if (isset($options['exclude']))
1865 $exclude = $options['exclude'];
1866 if (is_string($exclude) and !is_array($exclude))
1867 $exclude = PageList::explodePageList($exclude, false, false, $limit);
1868 foreach($array as $pagename) {
1869 if ($limit and $i++ > $limit)
1870 return new WikiDB_Array_PageIterator($pagenames);
1871 if (!empty($exclude) and !in_array($pagename, $exclude))
1872 $pagenames[] = $pagename;
1873 elseif (empty($exclude))
1874 $pagenames[] = $pagename;
1876 return new WikiDB_Array_PageIterator($pagenames);
1880 function _doSort(&$array, $sortby) {
1881 $sortby = PageList::sortby($sortby, 'init');
1882 if ($sortby == '+pagename')
1883 sort($array, SORT_STRING);
1884 elseif ($sortby == '-pagename')
1885 rsort($array, SORT_STRING);
1892 * A class which represents a sequence of WikiDB_PageRevisions.
1893 * TODO: Enhance to php5 iterators
1895 class WikiDB_PageRevisionIterator
1897 function WikiDB_PageRevisionIterator(&$wikidb, &$revisions, $options=false) {
1898 $this->_revisions = $revisions;
1899 $this->_wikidb = &$wikidb;
1900 $this->_options = $options;
1904 return $this->_revisions->count();
1908 * Get next WikiDB_PageRevision in sequence.
1912 * @return WikiDB_PageRevision
1913 * The next WikiDB_PageRevision in the sequence.
1916 if ( ! ($next = $this->_revisions->next()) )
1919 //$this->_wikidb->_cache->cache_data($next);
1921 $pagename = $next['pagename'];
1922 $version = $next['version'];
1923 $versiondata = $next['versiondata'];
1925 if (!(is_string($pagename) and $pagename != '')) {
1926 trigger_error("empty pagename",E_USER_WARNING);
1929 } else assert(is_string($pagename) and $pagename != '');
1931 if (!is_array($versiondata)) {
1932 trigger_error("empty versiondata",E_USER_WARNING);
1935 } else assert(is_array($versiondata));
1937 if (!($version > 0)) {
1938 trigger_error("invalid version",E_USER_WARNING);
1941 } else assert($version > 0);
1943 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1948 * Release resources held by this iterator.
1950 * The iterator may not be used after free() is called.
1952 * There is no need to call free(), if next() has returned false.
1953 * (I.e. if you iterate through all the revisions in the sequence,
1954 * you do not need to call free() --- you only need to call it
1955 * if you stop before the end of the iterator is reached.)
1960 $this->_revisions->free();
1963 function asArray() {
1965 while ($rev = $this->next())
1974 class WikiDB_Array_PageIterator
1976 function WikiDB_Array_PageIterator($pagenames) {
1978 $this->_dbi = $request->getDbh();
1979 $this->_pages = $pagenames;
1980 reset($this->_pages);
1983 $c =& current($this->_pages);
1984 next($this->_pages);
1985 return $c !== false ? $this->_dbi->getPage($c) : false;
1988 return count($this->_pages);
1991 function asArray() {
1992 reset($this->_pages);
1993 return $this->_pages;
1997 class WikiDB_Array_generic_iter
1999 function WikiDB_Array_generic_iter($result) {
2000 // $result may be either an array or a query result
2001 if (is_array($result)) {
2002 $this->_array = $result;
2003 } elseif (is_object($result)) {
2004 $this->_array = $result->asArray();
2006 $this->_array = array();
2008 if (!empty($this->_array))
2009 reset($this->_array);
2012 $c =& current($this->_array);
2013 next($this->_array);
2014 return $c !== false ? $c : false;
2017 return count($this->_array);
2020 function asArray() {
2021 if (!empty($this->_array))
2022 reset($this->_array);
2023 return $this->_array;
2028 * Data cache used by WikiDB.
2030 * FIXME: Maybe rename this to caching_backend (or some such).
2036 // FIXME: beautify versiondata cache. Cache only limited data?
2038 function WikiDB_cache (&$backend) {
2039 $this->_backend = &$backend;
2041 $this->_pagedata_cache = array();
2042 $this->_versiondata_cache = array();
2043 array_push ($this->_versiondata_cache, array());
2044 $this->_glv_cache = array();
2045 $this->_id_cache = array(); // formerly ->_dbi->_iwpcache (nonempty pages => id)
2049 $this->_pagedata_cache = array();
2050 $this->_versiondata_cache = array();
2051 $this->_glv_cache = array();
2052 $this->_id_cache = array();
2055 function get_pagedata($pagename) {
2056 assert(is_string($pagename) && $pagename != '');
2058 $cache = &$this->_pagedata_cache;
2059 if (!isset($cache[$pagename]) || !is_array($cache[$pagename])) {
2060 $cache[$pagename] = $this->_backend->get_pagedata($pagename);
2061 if (empty($cache[$pagename]))
2062 $cache[$pagename] = array();
2064 return $cache[$pagename];
2066 return $this->_backend->get_pagedata($pagename);
2070 function update_pagedata($pagename, $newdata) {
2071 assert(is_string($pagename) && $pagename != '');
2073 $this->_backend->update_pagedata($pagename, $newdata);
2076 if (!empty($this->_pagedata_cache[$pagename])
2077 and is_array($this->_pagedata_cache[$pagename]))
2079 $cachedata = &$this->_pagedata_cache[$pagename];
2080 foreach($newdata as $key => $val)
2081 $cachedata[$key] = $val;
2083 $this->_pagedata_cache[$pagename] = $newdata;
2087 function invalidate_cache($pagename) {
2088 unset ($this->_pagedata_cache[$pagename]);
2089 unset ($this->_versiondata_cache[$pagename]);
2090 unset ($this->_glv_cache[$pagename]);
2091 unset ($this->_id_cache[$pagename]);
2092 //unset ($this->_backend->_page_data);
2095 function delete_page($pagename) {
2096 $result = $this->_backend->delete_page($pagename);
2097 $this->invalidate_cache($pagename);
2101 function purge_page($pagename) {
2102 $result = $this->_backend->purge_page($pagename);
2103 $this->invalidate_cache($pagename);
2107 // FIXME: ugly and wrong. may overwrite full cache with partial cache
2108 function cache_data($data) {
2110 //if (isset($data['pagedata']))
2111 // $this->_pagedata_cache[$data['pagename']] = $data['pagedata'];
2114 function get_versiondata($pagename, $version, $need_content = false) {
2115 // FIXME: Seriously ugly hackage
2117 if (USECACHE) { //temporary - for debugging
2118 assert(is_string($pagename) && $pagename != '');
2119 // There is a bug here somewhere which results in an assertion failure at line 105
2120 // of ArchiveCleaner.php It goes away if we use the next line.
2121 //$need_content = true;
2122 $nc = $need_content ? '1':'0';
2123 $cache = &$this->_versiondata_cache;
2124 if (!isset($cache[$pagename][$version][$nc])
2125 || !(is_array ($cache[$pagename]))
2126 || !(is_array ($cache[$pagename][$version])))
2128 $cache[$pagename][$version][$nc] =
2129 $this->_backend->get_versiondata($pagename, $version, $need_content);
2131 // If we have retrieved all data, we may as well set the cache for
2132 // $need_content = false
2134 $cache[$pagename][$version]['0'] =& $cache[$pagename][$version]['1'];
2137 $vdata = $cache[$pagename][$version][$nc];
2139 $vdata = $this->_backend->get_versiondata($pagename, $version, $need_content);
2142 if ($readdata && $vdata && !empty($vdata['%pagedata'])) {
2143 $this->_pagedata_cache[$pagename] =& $vdata['%pagedata'];
2148 function set_versiondata($pagename, $version, $data) {
2149 //unset($this->_versiondata_cache[$pagename][$version]);
2151 $new = $this->_backend->set_versiondata($pagename, $version, $data);
2153 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2154 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2155 // Is this necessary?
2156 unset($this->_glv_cache[$pagename]);
2159 function update_versiondata($pagename, $version, $data) {
2160 $new = $this->_backend->update_versiondata($pagename, $version, $data);
2162 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2164 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2165 // Is this necessary?
2166 unset($this->_glv_cache[$pagename]);
2169 function delete_versiondata($pagename, $version) {
2170 $new = $this->_backend->delete_versiondata($pagename, $version);
2171 if (isset($this->_versiondata_cache[$pagename][$version]))
2172 unset ($this->_versiondata_cache[$pagename][$version]);
2173 // dirty latest version cache only if latest version gets deleted
2174 if (isset($this->_glv_cache[$pagename]) and $this->_glv_cache[$pagename] == $version)
2175 unset ($this->_glv_cache[$pagename]);
2178 function get_latest_version($pagename) {
2180 assert (is_string($pagename) && $pagename != '');
2181 $cache = &$this->_glv_cache;
2182 if (!isset($cache[$pagename])) {
2183 $cache[$pagename] = $this->_backend->get_latest_version($pagename);
2184 if (empty($cache[$pagename]))
2185 $cache[$pagename] = 0;
2187 return $cache[$pagename];
2189 return $this->_backend->get_latest_version($pagename);
2194 function _sql_debuglog($msg, $newline=true, $shutdown=false) {
2198 $stamp = strftime("%y%m%d-%H%M%S");
2199 $fp = fopen(TEMP_DIR."/sql-$stamp.log", "a");
2200 register_shutdown_function("_sql_debuglog_shutdown_function");
2201 } elseif ($shutdown) {
2205 if ($newline) fputs($fp, "[$i++] $msg");
2206 else fwrite($fp, $msg);
2209 function _sql_debuglog_shutdown_function() {
2210 _sql_debuglog('',false,true);
2213 // $Log: not supported by cvs2svn $
2214 // Revision 1.152 2007/05/28 20:13:46 rurban
2215 // Overwrite all attributes at once at page->save to delete dangling meta
2217 // Revision 1.151 2007/05/01 16:20:12 rurban
2218 // MailNotify->onChangePage only on DEBUG (still broken)
2220 // Revision 1.150 2007/03/18 17:35:27 rurban
2223 // Revision 1.149 2007/02/17 14:16:37 rurban
2224 // isWikiPage no error on empty pagenames. MailNotify->onChangePage fix by ??
2226 // Revision 1.148 2007/01/27 21:53:03 rurban
2227 // Use TEMP_DIR for debug sql.log
2229 // Revision 1.147 2007/01/04 16:41:41 rurban
2230 // Some pageiterators also set ['pagedata']['linkrelation'], hmm
2232 // Revision 1.146 2007/01/02 13:20:00 rurban
2233 // rewrote listRelations. added linkSearch. force new date in renamePage. fix fortune error handling. added page->setAttributes. use translated initial owner. Clarify API: sortby,limit and exclude are strings. Enhance documentation.
2235 // Revision 1.145 2006/12/22 17:59:55 rurban
2236 // Move mailer functions into seperate MailNotify.php
2238 // Revision 1.144 2006/10/12 06:36:09 rurban
2239 // Guard against unwanted DEBUG="DEBUG" logic. In detail (WikiDB),
2240 // and generally by forcing all int constants to be defined as int.
2242 // Revision 1.143 2006/09/06 05:46:40 rurban
2243 // do db backend check on _DEBUG_SQL
2245 // Revision 1.142 2006/06/10 11:55:58 rurban
2246 // print optimize only when DEBUG
2248 // Revision 1.141 2006/04/17 17:28:21 rurban
2249 // honor getWikiPageLinks change linkto=>relation
2251 // Revision 1.140 2006/03/19 14:23:51 rurban
2252 // sf.net patch #1377011 by Matt Brown: add DATABASE_OPTIMISE_FREQUENCY
2254 // Revision 1.139 2006/01/12 16:38:07 rurban
2255 // add page method listRelations()
2256 // fix bug #1327912 numeric pagenames can break plugins (Joachim Lous)
2258 // Revision 1.138 2005/11/14 22:27:07 rurban
2259 // add linkrelation support
2260 // getPageLinks returns now an array of hashes
2261 // pass stoplist through iterator
2263 // Revision 1.137 2005/10/12 06:16:18 rurban
2264 // better From header
2266 // Revision 1.136 2005/10/03 16:14:57 rurban
2267 // improve description
2269 // Revision 1.135 2005/09/11 14:19:44 rurban
2270 // enable LIMIT support for fulltext search
2272 // Revision 1.134 2005/09/10 21:28:10 rurban
2273 // applyFilters hack to use filters after methods, which do not support them (titleSearch)
2275 // Revision 1.133 2005/08/27 09:39:10 rurban
2276 // dumphtml when not at admin page: dump the current or given page
2278 // Revision 1.132 2005/08/07 10:10:07 rurban
2279 // clean whole version cache
2281 // Revision 1.131 2005/04/23 11:30:12 rurban
2282 // allow emtpy WikiDB::getRevisionBefore(), for simplier templates (revert)
2284 // Revision 1.130 2005/04/06 06:19:30 rurban
2285 // Revert the previous wrong bugfix #1175761: USECACHE was mixed with WIKIDB_NOCACHE_MARKUP.
2286 // Fix WIKIDB_NOCACHE_MARKUP in main (always set it) and clarify it in WikiDB
2288 // Revision 1.129 2005/04/06 05:50:29 rurban
2289 // honor !USECACHE for _cached_html, fixes #1175761
2291 // Revision 1.128 2005/04/01 16:11:42 rurban
2294 // Revision 1.127 2005/02/18 20:43:40 uckelman
2295 // WikiDB::genericWarnings() is no longer used.
2297 // Revision 1.126 2005/02/04 17:58:06 rurban
2298 // minor versioncache improvement. part 2/3 of Charles Corrigan cache patch. not sure about the 0/1 issue
2300 // Revision 1.125 2005/02/03 05:08:39 rurban
2301 // ref fix by Charles Corrigan
2303 // Revision 1.124 2005/01/29 20:43:32 rurban
2304 // protect against empty request: on some occasion this happens
2306 // Revision 1.123 2005/01/25 06:58:21 rurban
2309 // Revision 1.122 2005/01/20 10:18:17 rurban
2312 // Revision 1.121 2005/01/04 20:25:01 rurban
2313 // remove old [%pagedata][_cached_html] code
2315 // Revision 1.120 2004/12/23 14:12:31 rurban
2316 // dont email on unittest
2318 // Revision 1.119 2004/12/20 16:05:00 rurban
2319 // gettext msg unification
2321 // Revision 1.118 2004/12/13 13:22:57 rurban
2322 // new BlogArchives plugin for the new blog theme. enable default box method
2323 // for all plugins. Minor search improvement.
2325 // Revision 1.117 2004/12/13 08:15:09 rurban
2326 // false is wrong. null might be better but lets play safe.
2328 // Revision 1.116 2004/12/10 22:15:00 rurban
2329 // fix $page->get('_cached_html)
2330 // refactor upgrade db helper _convert_cached_html() to be able to call them from WikiAdminUtils also.
2331 // support 2nd genericSqlQuery param (bind huge arg)
2333 // Revision 1.115 2004/12/10 02:45:27 rurban
2334 // SQL optimization:
2335 // put _cached_html from pagedata into a new seperate blob, not huge serialized string.
2336 // it is only rarelely needed: for current page only, if-not-modified
2337 // but was extracted for every simple page iteration.
2339 // Revision 1.114 2004/12/09 22:24:44 rurban
2340 // optimize on _DEBUG_SQL only. but now again on every 50th request, not just save.
2342 // Revision 1.113 2004/12/06 19:49:55 rurban
2343 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
2344 // renamed delete_page to purge_page.
2345 // enable action=edit&version=-1 to force creation of a new version.
2346 // added BABYCART_PATH config
2347 // fixed magiqc in adodb.inc.php
2348 // and some more docs
2350 // Revision 1.112 2004/11/30 17:45:53 rurban
2351 // exists_links backend implementation
2353 // Revision 1.111 2004/11/28 20:39:43 rurban
2354 // deactivate pagecache overwrite: it is wrong
2356 // Revision 1.110 2004/11/26 18:39:01 rurban
2357 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
2359 // Revision 1.109 2004/11/25 17:20:50 rurban
2360 // and again a couple of more native db args: backlinks
2362 // Revision 1.108 2004/11/23 13:35:31 rurban
2363 // add case_exact search
2365 // Revision 1.107 2004/11/21 11:59:16 rurban
2366 // remove final \n to be ob_cache independent
2368 // Revision 1.106 2004/11/20 17:35:56 rurban
2369 // improved WantedPages SQL backends
2370 // PageList::sortby new 3rd arg valid_fields (override db fields)
2371 // WantedPages sql pager inexact for performance reasons:
2372 // assume 3 wantedfrom per page, to be correct, no getTotal()
2373 // support exclude argument for get_all_pages, new _sql_set()
2375 // Revision 1.105 2004/11/20 09:16:27 rurban
2376 // Fix bad-style Cut&Paste programming errors, detected by Charles Corrigan.
2378 // Revision 1.104 2004/11/19 19:22:03 rurban
2379 // ModeratePage part1: change status
2381 // Revision 1.103 2004/11/16 17:29:04 rurban
2382 // fix remove notification error
2383 // fix creation + update id_cache update
2385 // Revision 1.102 2004/11/11 18:31:26 rurban
2386 // add simple backtrace on such general failures to get at least an idea where
2388 // Revision 1.101 2004/11/10 19:32:22 rurban
2389 // * optimize increaseHitCount, esp. for mysql.
2390 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
2391 // * Pear_DB version logic (awful but needed)
2392 // * fix broken ADODB quote
2393 // * _extract_page_data simplification
2395 // Revision 1.100 2004/11/10 15:29:20 rurban
2396 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
2397 // * ACCESS_LOG_SQL: fix cause request not yet initialized
2398 // * WikiDB: moved SQL specific methods upwards
2399 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
2400 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
2402 // Revision 1.99 2004/11/09 17:11:05 rurban
2403 // * revert to the wikidb ref passing. there's no memory abuse there.
2404 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
2405 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
2406 // are also needed at the rendering for linkExistingWikiWord().
2407 // pass options to pageiterator.
2408 // use this cache also for _get_pageid()
2409 // This saves about 8 SELECT count per page (num all pagelinks).
2410 // * fix passing of all page fields to the pageiterator.
2411 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
2413 // Revision 1.98 2004/11/07 18:34:29 rurban
2414 // more logging fixes
2416 // Revision 1.97 2004/11/07 16:02:51 rurban
2417 // new sql access log (for spam prevention), and restructured access log class
2418 // dbh->quote (generic)
2419 // pear_db: mysql specific parts seperated (using replace)
2421 // Revision 1.96 2004/11/05 22:32:15 rurban
2422 // encode the subject to be 7-bit safe
2424 // Revision 1.95 2004/11/05 20:53:35 rurban
2425 // login cleanup: better debug msg on failing login,
2426 // checked password less immediate login (bogo or anon),
2427 // checked olduser pref session error,
2428 // better PersonalPage without password warning on minimal password length=0
2429 // (which is default now)
2431 // Revision 1.94 2004/11/01 10:43:56 rurban
2432 // seperate PassUser methods into seperate dir (memory usage)
2433 // fix WikiUser (old) overlarge data session
2434 // remove wikidb arg from various page class methods, use global ->_dbi instead
2437 // Revision 1.93 2004/10/14 17:17:57 rurban
2438 // remove dbi WikiDB_Page param: use global request object instead. (memory)
2439 // allow most_popular sortby arguments
2441 // Revision 1.92 2004/10/05 17:00:04 rurban
2442 // support paging for simple lists
2443 // fix RatingDb sql backend.
2444 // remove pages from AllPages (this is ListPages then)
2446 // Revision 1.91 2004/10/04 23:41:19 rurban
2447 // delete notify: fix, @unset syntax error
2449 // Revision 1.90 2004/09/28 12:50:22 rurban
2450 // https://sourceforge.net/forum/forum.php?thread_id=1150924&forum_id=18929
2452 // Revision 1.89 2004/09/26 10:54:42 rurban
2453 // silence deferred check
2455 // Revision 1.88 2004/09/25 18:16:40 rurban
2456 // unset more unneeded _cached_html. (Guess this should fix sf.net now)
2458 // Revision 1.87 2004/09/25 16:25:40 rurban
2459 // notify on rename and remove (to be improved)
2461 // Revision 1.86 2004/09/23 18:52:06 rurban
2462 // only fortune at create
2464 // Revision 1.85 2004/09/16 08:00:51 rurban
2465 // just some comments
2467 // Revision 1.84 2004/09/14 10:34:30 rurban
2468 // fix TransformedText call to use refs
2470 // Revision 1.83 2004/09/08 13:38:00 rurban
2471 // improve loadfile stability by using markup=2 as default for undefined markup-style.
2472 // use more refs for huge objects.
2473 // fix debug=static issue in WikiPluginCached
2475 // Revision 1.82 2004/09/06 12:08:49 rurban
2476 // memory_limit on unix workaround
2477 // VisualWiki: default autosize image
2479 // Revision 1.81 2004/09/06 08:28:00 rurban
2480 // rename genericQuery to genericSqlQuery
2482 // Revision 1.80 2004/07/09 13:05:34 rurban
2485 // Revision 1.79 2004/07/09 10:06:49 rurban
2486 // Use backend specific sortby and sortable_columns method, to be able to
2487 // select between native (Db backend) and custom (PageList) sorting.
2488 // Fixed PageList::AddPageList (missed the first)
2489 // Added the author/creator.. name to AllPagesBy...
2490 // display no pages if none matched.
2491 // Improved dba and file sortby().
2492 // Use &$request reference
2494 // Revision 1.78 2004/07/08 21:32:35 rurban
2495 // Prevent from more warnings, minor db and sort optimizations
2497 // Revision 1.77 2004/07/08 19:04:42 rurban
2498 // more unittest fixes (file backend, metadata RatingsDb)
2500 // Revision 1.76 2004/07/08 17:31:43 rurban
2501 // improve numPages for file (fixing AllPagesTest)
2503 // Revision 1.75 2004/07/05 13:56:22 rurban
2504 // sqlite autoincrement fix
2506 // Revision 1.74 2004/07/03 16:51:05 rurban
2507 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
2508 // added atomic mysql REPLACE for PearDB as in ADODB
2509 // fixed _lock_tables typo links => link
2510 // fixes unserialize ADODB bug in line 180
2512 // Revision 1.73 2004/06/29 08:52:22 rurban
2513 // Use ...version() $need_content argument in WikiDB also:
2514 // To reduce the memory footprint for larger sets of pagelists,
2515 // we don't cache the content (only true or false) and
2516 // we purge the pagedata (_cached_html) also.
2517 // _cached_html is only cached for the current pagename.
2518 // => Vastly improved page existance check, ACL check, ...
2520 // Now only PagedList info=content or size needs the whole content, esp. if sortable.
2522 // Revision 1.72 2004/06/25 14:15:08 rurban
2523 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
2525 // Revision 1.71 2004/06/21 16:22:30 rurban
2526 // add DEFAULT_DUMP_DIR and HTML_DUMP_DIR constants, for easier cmdline dumps,
2527 // fixed dumping buttons locally (images/buttons/),
2528 // support pages arg for dumphtml,
2529 // optional directory arg for dumpserial + dumphtml,
2530 // fix a AllPages warning,
2531 // show dump warnings/errors on DEBUG,
2532 // don't warn just ignore on wikilens pagelist columns, if not loaded.
2533 // RateIt pagelist column is called "rating", not "ratingwidget" (Dan?)
2535 // Revision 1.70 2004/06/18 14:39:31 rurban
2536 // actually check USECACHE
2538 // Revision 1.69 2004/06/13 15:33:20 rurban
2539 // new support for arguments owner, author, creator in most relevant
2540 // PageList plugins. in WikiAdmin* via preSelectS()
2542 // Revision 1.68 2004/06/08 21:03:20 rurban
2543 // updated RssParser for XmlParser quirks (store parser object params in globals)
2545 // Revision 1.67 2004/06/07 19:12:49 rurban
2546 // fixed rename version=0, bug #966284
2548 // Revision 1.66 2004/06/07 18:57:27 rurban
2549 // fix rename: Change pagename in all linked pages
2551 // Revision 1.65 2004/06/04 20:32:53 rurban
2552 // Several locale related improvements suggested by Pierrick Meignen
2553 // LDAP fix by John Cole
2554 // reanable admin check without ENABLE_PAGEPERM in the admin plugins
2556 // Revision 1.64 2004/06/04 16:50:00 rurban
2557 // add random quotes to empty pages
2559 // Revision 1.63 2004/06/04 11:58:38 rurban
2560 // added USE_TAGLINES
2562 // Revision 1.62 2004/06/03 22:24:41 rurban
2563 // reenable admin check on !ENABLE_PAGEPERM, honor s=Wildcard arg, fix warning after Remove
2565 // Revision 1.61 2004/06/02 17:13:48 rurban
2566 // fix getRevisionBefore assertion
2568 // Revision 1.60 2004/05/28 10:09:58 rurban
2569 // fix bug #962117, incorrect init of auth_dsn
2571 // Revision 1.59 2004/05/27 17:49:05 rurban
2572 // renamed DB_Session to DbSession (in CVS also)
2573 // added WikiDB->getParam and WikiDB->getAuthParam method to get rid of globals
2574 // remove leading slash in error message
2575 // added force_unlock parameter to File_Passwd (no return on stale locks)
2576 // fixed adodb session AffectedRows
2577 // added FileFinder helpers to unify local filenames and DATA_PATH names
2578 // editpage.php: new edit toolbar javascript on ENABLE_EDIT_TOOLBAR
2580 // Revision 1.58 2004/05/18 13:59:14 rurban
2581 // rename simpleQuery to genericQuery
2583 // Revision 1.57 2004/05/16 22:07:35 rurban
2584 // check more config-default and predefined constants
2585 // various PagePerm fixes:
2586 // fix default PagePerms, esp. edit and view for Bogo and Password users
2587 // implemented Creator and Owner
2588 // BOGOUSERS renamed to BOGOUSER
2589 // fixed syntax errors in signin.tmpl
2591 // Revision 1.56 2004/05/15 22:54:49 rurban
2592 // fixed important WikiDB bug with DEBUG > 0: wrong assertion
2593 // improved SetAcl (works) and PagePerms, some WikiGroup helpers.
2595 // Revision 1.55 2004/05/12 19:27:47 rurban
2596 // revert wrong inline optimization.
2598 // Revision 1.54 2004/05/12 10:49:55 rurban
2599 // require_once fix for those libs which are loaded before FileFinder and
2600 // its automatic include_path fix, and where require_once doesn't grok
2601 // dirname(__FILE__) != './lib'
2602 // upgrade fix with PearDB
2603 // navbar.tmpl: remove spaces for IE button alignment
2605 // Revision 1.53 2004/05/08 14:06:12 rurban
2606 // new support for inlined image attributes: [image.jpg size=50x30 align=right]
2607 // minor stability and portability fixes
2609 // Revision 1.52 2004/05/06 19:26:16 rurban
2610 // improve stability, trying to find the InlineParser endless loop on sf.net
2612 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
2614 // Revision 1.51 2004/05/06 17:30:37 rurban
2615 // CategoryGroup: oops, dos2unix eol
2616 // improved phpwiki_version:
2617 // pre -= .0001 (1.3.10pre: 1030.099)
2618 // -p1 += .001 (1.3.9-p1: 1030.091)
2619 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
2620 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
2621 // backend->backendType(), backend->database(),
2622 // backend->listOfFields(),
2623 // backend->listOfTables(),
2625 // Revision 1.50 2004/05/04 22:34:25 rurban
2628 // Revision 1.49 2004/05/03 11:16:40 rurban
2629 // fixed sendPageChangeNotification
2630 // subject rewording
2632 // Revision 1.48 2004/04/29 23:03:54 rurban
2633 // fixed sf.net bug #940996
2635 // Revision 1.47 2004/04/29 19:39:44 rurban
2636 // special support for formatted plugins (one-liners)
2637 // like <small><plugin BlaBla ></small>
2638 // iter->asArray() helper for PopularNearby
2639 // db_session for older php's (no &func() allowed)
2641 // Revision 1.46 2004/04/26 20:44:34 rurban
2642 // locking table specific for better databases
2644 // Revision 1.45 2004/04/20 00:06:03 rurban
2645 // themable paging support
2647 // Revision 1.44 2004/04/19 18:27:45 rurban
2648 // Prevent from some PHP5 warnings (ref args, no :: object init)
2649 // php5 runs now through, just one wrong XmlElement object init missing
2650 // Removed unneccesary UpgradeUser lines
2651 // Changed WikiLink to omit version if current (RecentChanges)
2653 // Revision 1.43 2004/04/18 01:34:20 rurban
2654 // protect most_popular from sortby=mtime
2656 // Revision 1.42 2004/04/18 01:11:51 rurban
2657 // more numeric pagename fixes.
2658 // fixed action=upload with merge conflict warnings.
2659 // charset changed from constant to global (dynamic utf-8 switching)
2665 // c-basic-offset: 4
2666 // c-hanging-comment-ender-p: nil
2667 // indent-tabs-mode: nil