2 rcs_id('$Id: WikiDB.php,v 1.146 2007-01-02 13:20:00 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->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.
319 * @param TextSearchQuery $search A TextSearchQuery object
320 * @param string or false $sortby Optional. "+-column,+-column2".
321 * If false the result is faster in natural order.
322 * @param string or false $limit Optional. Encoded as "$offset,$count".
323 * $offset defaults to 0.
324 * @param string $exclude: Optional comma-seperated list of pagenames.
325 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
326 * @see TextSearchQuery
328 function titleSearch($search, $sortby='pagename', $limit='', $exclude='') {
329 $result = $this->_backend->text_search($search, false, $sortby, $limit, $exclude);
330 return new WikiDB_PageIterator($this, $result,
331 array('exclude' => $exclude,
338 * Search for pages containing (or not containing) certain words
339 * in their entire text (this includes the page content and the
342 * Pages are returned in alphabetical order whenever it is
343 * practical to do so.
347 * @param TextSearchQuery $search A TextSearchQuery object.
348 * @param string or false $sortby Optional. "+-column,+-column2".
349 * If false the result is faster in natural order.
350 * @param string or false $limit Optional. Encoded as "$offset,$count".
351 * $offset defaults to 0.
352 * @param string $exclude: Optional comma-seperated list of pagenames.
353 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching pages.
354 * @see TextSearchQuery
356 function fullSearch($search, $sortby='pagename', $limit='', $exclude='') {
357 $result = $this->_backend->text_search($search, true, $sortby, $limit, $exclude);
358 return new WikiDB_PageIterator($this, $result,
359 array('exclude' => $exclude,
361 'stoplisted' => $result->stoplisted
366 * Find the pages with the greatest hit counts.
368 * Pages are returned in reverse order by hit count.
372 * @param integer $limit The maximum number of pages to return.
373 * Set $limit to zero to return all pages. If $limit < 0, pages will
374 * be sorted in decreasing order of popularity.
375 * @param string or false $sortby Optional. "+-column,+-column2".
376 * If false the result is faster in natural order.
378 * @return WikiDB_PageIterator A WikiDB_PageIterator containing the matching
381 function mostPopular($limit = 20, $sortby = '-hits') {
382 $result = $this->_backend->most_popular($limit, $sortby);
383 return new WikiDB_PageIterator($this, $result);
387 * Find recent page revisions.
389 * Revisions are returned in reverse order by creation time.
393 * @param hash $params This hash is used to specify various optional
397 * <dd> (integer) At most this many revisions will be returned.
399 * <dd> (integer) Only revisions since this time (unix-timestamp)
401 * <dt> include_minor_revisions
402 * <dd> (boolean) Also include minor revisions. (Default is not to.)
403 * <dt> exclude_major_revisions
404 * <dd> (boolean) Don't include non-minor revisions.
405 * (Exclude_major_revisions implies include_minor_revisions.)
406 * <dt> include_all_revisions
407 * <dd> (boolean) Return all matching revisions for each page.
408 * Normally only the most recent matching revision is returned
412 * @return WikiDB_PageRevisionIterator A WikiDB_PageRevisionIterator
413 * containing the matching revisions.
415 function mostRecent($params = false) {
416 $result = $this->_backend->most_recent($params);
417 return new WikiDB_PageRevisionIterator($this, $result);
423 * @param string or false $sortby Optional. "+-column,+-column2".
424 * If false the result is faster in natural order.
425 * @param string or false $limit Optional. Encoded as "$offset,$count".
426 * $offset defaults to 0.
427 * @return Iterator A generic iterator containing rows of
428 * (duplicate) pagename, wantedfrom.
430 function wantedPages($exclude_from='', $exclude='', $sortby='', $limit='') {
431 return $this->_backend->wanted_pages($exclude_from, $exclude, $sortby, $limit);
432 //return new WikiDB_PageIterator($this, $result);
436 * Generic interface to the link table. Esp. useful to search for rdf triples as in
437 * SemanticSearch and ListRelations.
441 * @param $pages object A TextSearchQuery object.
442 * @param $search object A TextSearchQuery object.
443 * @param string $linktype One of "linkto", "linkfrom", "relation", "attribute".
444 * linktype parameter:
447 * <dd> search for simple out-links
449 * <dd> in-links, i.e BackLinks
451 * <dd> the first part in a <>::<> link
453 * <dd> the first part in a <>:=<> link
455 * @param $relation object An optional TextSearchQuery to match the
456 * relation name. Ignored on simple in-out links.
458 * @return Iterator A generic iterator containing links to pages or values.
459 * hash of "pagename", "linkname", "linkvalue.
461 function linkSearch($pages, $search, $linktype, $relation=false) {
462 return $this->_backend->link_search($pages, $search, $linktype, $relation);
466 * Return a simple list of all defined relations (and attributes), mainly
467 * for the SemanticSearch autocompletion.
471 * @return array of strings
473 function listRelations($also_attributes=false, $only_attributes=false, $sorted=true) {
474 if (method_exists($this->_backend, "list_relations"))
475 return $this->_backend->list_relations($also_attributes, $only_attributes, $sorted);
476 // dumb, slow fallback. no iter, so simply define it here.
477 $relations = array();
478 $iter = $this->getAllPages();
479 while ($page = $iter->next()) {
480 $reliter = $page->getRelations();
482 while ($rel = $reliter->next()) {
483 // if there's no pagename it's an attribute
484 $names[] = $rel->getName();
486 $relations = array_merge($relations, $names);
498 * Call the appropriate backend method.
501 * @param string $from Page to rename
502 * @param string $to New name
503 * @param boolean $updateWikiLinks If the text in all pages should be replaced.
504 * @return boolean true or false
506 function renamePage($from, $to, $updateWikiLinks = false) {
507 assert(is_string($from) && $from != '');
508 assert(is_string($to) && $to != '');
510 if (method_exists($this->_backend, 'rename_page')) {
511 $oldpage = $this->getPage($from);
512 $newpage = $this->getPage($to);
513 //update all WikiLinks in existing pages
514 //non-atomic! i.e. if rename fails the links are not undone
515 if ($updateWikiLinks) {
516 require_once('lib/plugin/WikiAdminSearchReplace.php');
517 $links = $oldpage->getBackLinks();
518 while ($linked_page = $links->next()) {
519 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,
520 $linked_page->getName(),
523 $links = $newpage->getBackLinks();
524 while ($linked_page = $links->next()) {
525 WikiPlugin_WikiAdminSearchReplace::replaceHelper($this,
526 $linked_page->getName(),
530 if ($oldpage->exists() and ! $newpage->exists()) {
531 if ($result = $this->_backend->rename_page($from, $to)) {
532 //create a RecentChanges entry with explaining summary
533 $page = $this->getPage($to);
534 $current = $page->getCurrentRevision();
535 $meta = $current->_data;
536 $version = $current->getVersion();
537 $meta['summary'] = sprintf(_("renamed from %s"), $from);
538 unset($meta['mtime']); // force new date
539 $page->save($current->getPackedContent(), $version + 1, $meta);
541 } elseif (!$oldpage->getCurrentRevision(false) and !$newpage->exists()) {
542 // if a version 0 exists try it also.
543 $result = $this->_backend->rename_page($from, $to);
546 trigger_error(_("WikiDB::renamePage() not yet implemented for this backend"),
549 /* Generate notification emails? */
550 if ($result and !isa($GLOBALS['request'], 'MockRequest')) {
551 $notify = $this->get('notify');
552 if (!empty($notify) and is_array($notify)) {
553 include_once("lib/MailNotify.php");
554 $MailNotify = new MailNotify($from);
555 $MailNotify->onRenamePage ($this, $from, $to);
561 /** Get timestamp when database was last modified.
563 * @return string A string consisting of two integers,
564 * separated by a space. The first is the time in
565 * unix timestamp format, the second is a modification
566 * count for the database.
568 * The idea is that you can cast the return value to an
569 * int to get a timestamp, or you can use the string value
570 * as a good hash for the entire database.
572 function getTimestamp() {
573 $ts = $this->get('_timestamp');
574 return sprintf("%d %d", $ts[0], $ts[1]);
578 * Update the database timestamp.
582 $ts = $this->get('_timestamp');
583 $this->set('_timestamp', array(time(), $ts[1] + 1));
587 * Roughly similar to the float in phpwiki_version(). Set by action=upgrade.
589 function get_db_version() {
590 return (float) $this->get('_db_version');
592 function set_db_version($ver) {
593 return $this->set('_db_version', (float)$ver);
597 * Access WikiDB global meta-data.
599 * NOTE: this is currently implemented in a hackish and
600 * not very efficient manner.
604 * @param string $key Which meta data to get.
605 * Some reserved meta-data keys are:
607 * <dt>'_timestamp' <dd> Data used by getTimestamp().
610 * @return scalar The requested value, or false if the requested data
614 if (!$key || $key[0] == '%')
617 * Hack Alert: We can use any page (existing or not) to store
618 * this data (as long as we always use the same one.)
620 $gd = $this->getPage('global_data');
621 $data = $gd->get('__global');
623 if ($data && isset($data[$key]))
630 * Set global meta-data.
632 * NOTE: this is currently implemented in a hackish and
633 * not very efficient manner.
638 * @param string $key Meta-data key to set.
639 * @param string $newval New value.
641 function set($key, $newval) {
642 if (!$key || $key[0] == '%')
645 $gd = $this->getPage('global_data');
646 $data = $gd->get('__global');
653 $data[$key] = $newval;
655 $gd->set('__global', $data);
658 /* TODO: these are really backend methods */
660 // SQL result: for simple select or create/update queries
661 // returns the database specific resource type
662 function genericSqlQuery($sql, $args=false) {
663 if (function_exists('debug_backtrace')) { // >= 4.3.0
664 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
666 trigger_error("no SQL database", E_USER_ERROR);
670 // SQL iter: for simple select or create/update queries
671 // returns the generic iterator object (count,next)
672 function genericSqlIter($sql, $field_list = NULL) {
673 if (function_exists('debug_backtrace')) { // >= 4.3.0
674 echo "<pre>", printSimpleTrace(debug_backtrace()), "</pre>\n";
676 trigger_error("no SQL database", E_USER_ERROR);
680 // see backend upstream methods
681 // ADODB adds surrounding quotes, SQL not yet!
682 function quote ($s) {
688 if (!$request->_dbi) return false;
689 else return false; /* so far only needed for sql so false it.
690 later we have to check dba also */
693 function getParam($param) {
695 if (isset($DBParams[$param])) return $DBParams[$param];
696 elseif ($param == 'prefix') return '';
700 function getAuthParam($param) {
701 global $DBAuthParams;
702 if (isset($DBAuthParams[$param])) return $DBAuthParams[$param];
703 elseif ($param == 'USER_AUTH_ORDER') return $GLOBALS['USER_AUTH_ORDER'];
704 elseif ($param == 'USER_AUTH_POLICY') return $GLOBALS['USER_AUTH_POLICY'];
711 * An abstract base class which representing a wiki-page within a
714 * A WikiDB_Page contains a number (at least one) of
715 * WikiDB_PageRevisions.
719 function WikiDB_Page(&$wikidb, $pagename) {
720 $this->_wikidb = &$wikidb;
721 $this->_pagename = $pagename;
723 if (!(is_string($pagename) and $pagename != '')) {
724 if (function_exists("xdebug_get_function_stack")) {
725 echo "xdebug_get_function_stack(): "; var_dump(xdebug_get_function_stack());
726 } elseif (function_exists("debug_backtrace")) { // >= 4.3.0
727 printSimpleTrace(debug_backtrace());
729 trigger_error("empty pagename", E_USER_WARNING);
733 assert(is_string($pagename) and $pagename != '');
738 * Get the name of the wiki page.
742 * @return string The page name.
745 return $this->_pagename;
748 // To reduce the memory footprint for larger sets of pagelists,
749 // we don't cache the content (only true or false) and
750 // we purge the pagedata (_cached_html) also
752 if (isset($this->_wikidb->_cache->_id_cache[$this->_pagename])) return true;
753 $current = $this->getCurrentRevision(false);
754 if (!$current) return false;
755 return ! $current->hasDefaultContents();
759 * Delete an old revision of a WikiDB_Page.
761 * Deletes the specified revision of the page.
762 * It is a fatal error to attempt to delete the current revision.
766 * @param integer $version Which revision to delete. (You can also
767 * use a WikiDB_PageRevision object here.)
769 function deleteRevision($version) {
770 $backend = &$this->_wikidb->_backend;
771 $cache = &$this->_wikidb->_cache;
772 $pagename = &$this->_pagename;
774 $version = $this->_coerce_to_version($version);
778 $backend->lock(array('page','version'));
779 $latestversion = $cache->get_latest_version($pagename);
780 if ($latestversion && ($version == $latestversion)) {
781 $backend->unlock(array('page','version'));
782 trigger_error(sprintf("Attempt to delete most recent revision of '%s'",
783 $pagename), E_USER_ERROR);
787 $cache->delete_versiondata($pagename, $version);
788 $backend->unlock(array('page','version'));
792 * Delete a revision, or possibly merge it with a previous
796 * Suppose an author make a (major) edit to a page. Shortly
797 * after that the same author makes a minor edit (e.g. to fix
798 * spelling mistakes he just made.)
800 * Now some time later, where cleaning out old saved revisions,
801 * and would like to delete his minor revision (since there's
802 * really no point in keeping minor revisions around for a long
805 * Note that the text after the minor revision probably represents
806 * what the author intended to write better than the text after
807 * the preceding major edit.
809 * So what we really want to do is merge the minor edit with the
812 * We will only do this when:
814 * <li>The revision being deleted is a minor one, and
815 * <li>It has the same author as the immediately preceding revision.
818 function mergeRevision($version) {
819 $backend = &$this->_wikidb->_backend;
820 $cache = &$this->_wikidb->_cache;
821 $pagename = &$this->_pagename;
823 $version = $this->_coerce_to_version($version);
827 $backend->lock(array('version'));
828 $latestversion = $cache->get_latest_version($pagename);
829 if ($latestversion && $version == $latestversion) {
830 $backend->unlock(array('version'));
831 trigger_error(sprintf("Attempt to merge most recent revision of '%s'",
832 $pagename), E_USER_ERROR);
836 $versiondata = $cache->get_versiondata($pagename, $version, true);
838 // Not there? ... we're done!
839 $backend->unlock(array('version'));
843 if ($versiondata['is_minor_edit']) {
844 $previous = $backend->get_previous_version($pagename, $version);
846 $prevdata = $cache->get_versiondata($pagename, $previous);
847 if ($prevdata['author_id'] == $versiondata['author_id']) {
848 // This is a minor revision, previous version is
849 // by the same author. We will merge the
851 $cache->update_versiondata($pagename, $previous,
852 array('%content' => $versiondata['%content'],
853 '_supplanted' => $versiondata['_supplanted']));
858 $cache->delete_versiondata($pagename, $version);
859 $backend->unlock(array('version'));
864 * Create a new revision of a {@link WikiDB_Page}.
868 * @param int $version Version number for new revision.
869 * To ensure proper serialization of edits, $version must be
870 * exactly one higher than the current latest version.
871 * (You can defeat this check by setting $version to
872 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
874 * @param string $content Contents of new revision.
876 * @param hash $metadata Metadata for new revision.
877 * All values in the hash should be scalars (strings or integers).
879 * @param hash $links List of linkto=>pagename, relation=>pagename which this page links to.
881 * @return WikiDB_PageRevision Returns the new WikiDB_PageRevision object. If
882 * $version was incorrect, returns false
884 function createRevision($version, &$content, $metadata, $links) {
885 $backend = &$this->_wikidb->_backend;
886 $cache = &$this->_wikidb->_cache;
887 $pagename = &$this->_pagename;
888 $cache->invalidate_cache($pagename);
890 $backend->lock(array('version','page','recent','link','nonempty'));
892 $latestversion = $backend->get_latest_version($pagename);
893 $newversion = ($latestversion ? $latestversion : 0) + 1;
894 assert($newversion >= 1);
896 if ($version != WIKIDB_FORCE_CREATE and $version != $newversion) {
897 $backend->unlock(array('version','page','recent','link','nonempty'));
903 foreach ($data as $key => $val) {
904 if (empty($val) || $key[0] == '_' || $key[0] == '%')
908 assert(!empty($data['author']));
909 if (empty($data['author_id']))
910 @$data['author_id'] = $data['author'];
912 if (empty($data['mtime']))
913 $data['mtime'] = time();
915 if ($latestversion and $version != WIKIDB_FORCE_CREATE) {
916 // Ensure mtimes are monotonic.
917 $pdata = $cache->get_versiondata($pagename, $latestversion);
918 if ($data['mtime'] < $pdata['mtime']) {
919 trigger_error(sprintf(_("%s: Date of new revision is %s"),
920 $pagename,"'non-monotonic'"),
922 $data['orig_mtime'] = $data['mtime'];
923 $data['mtime'] = $pdata['mtime'];
926 // FIXME: use (possibly user specified) 'mtime' time or
928 $cache->update_versiondata($pagename, $latestversion,
929 array('_supplanted' => $data['mtime']));
932 $data['%content'] = &$content;
934 $cache->set_versiondata($pagename, $newversion, $data);
936 //$cache->update_pagedata($pagename, array(':latestversion' => $newversion,
937 //':deleted' => empty($content)));
939 $backend->set_links($pagename, $links);
941 $backend->unlock(array('version','page','recent','link','nonempty'));
943 return new WikiDB_PageRevision($this->_wikidb, $pagename, $newversion,
947 /** A higher-level interface to createRevision.
949 * This takes care of computing the links, and storing
950 * a cached version of the transformed wiki-text.
952 * @param string $wikitext The page content.
954 * @param int $version Version number for new revision.
955 * To ensure proper serialization of edits, $version must be
956 * exactly one higher than the current latest version.
957 * (You can defeat this check by setting $version to
958 * {@link WIKIDB_FORCE_CREATE} --- not usually recommended.)
960 * @param hash $meta Meta-data for new revision.
962 function save($wikitext, $version, $meta) {
963 $formatted = new TransformedText($this, $wikitext, $meta);
964 $type = $formatted->getType();
965 $meta['pagetype'] = $type->getName();
966 $links = $formatted->getWikiPageLinks(); // linkto => relation
968 $backend = &$this->_wikidb->_backend;
969 $newrevision = $this->createRevision($version, $wikitext, $meta, $links);
970 if ($newrevision and !WIKIDB_NOCACHE_MARKUP)
971 $this->set('_cached_html', $formatted->pack());
973 // FIXME: probably should have some global state information
974 // in the backend to control when to optimize.
976 // We're doing this here rather than in createRevision because
977 // postgresql can't optimize while locked.
978 if (((int)DEBUG & _DEBUG_SQL)
979 or (DATABASE_OPTIMISE_FREQUENCY > 0 and
980 (time() % DATABASE_OPTIMISE_FREQUENCY == 0))) {
981 if ($backend->optimize()) {
983 trigger_error(_("Optimizing database"), E_USER_NOTICE);
987 /* Generate notification emails? */
988 if (isa($newrevision, 'WikiDB_PageRevision')) {
989 // Save didn't fail because of concurrent updates.
990 $notify = $this->_wikidb->get('notify');
991 if (!empty($notify) and is_array($notify) and !isa($GLOBALS['request'],'MockRequest')) {
992 include_once("lib/MailNotify.php");
993 $MailNotify = new MailNotify($newrevision->getName());
994 $MailNotify->onChangePage ($this, $wikitext, $version, $meta);
996 $newrevision->_transformedContent = $formatted;
1003 * Get the most recent revision of a page.
1007 * @return WikiDB_PageRevision The current WikiDB_PageRevision object.
1009 function getCurrentRevision ($need_content=true) {
1010 $backend = &$this->_wikidb->_backend;
1011 $cache = &$this->_wikidb->_cache;
1012 $pagename = &$this->_pagename;
1014 // Prevent deadlock in case of memory exhausted errors
1015 // Pure selection doesn't really need locking here.
1016 // sf.net bug#927395
1017 // I know it would be better to lock, but with lots of pages this deadlock is more
1018 // severe than occasionally get not the latest revision.
1019 // In spirit to wikiwiki: read fast, edit slower.
1021 $version = $cache->get_latest_version($pagename);
1022 // getRevision gets the content also!
1023 $revision = $this->getRevision($version, $need_content);
1024 //$backend->unlock();
1030 * Get a specific revision of a WikiDB_Page.
1034 * @param integer $version Which revision to get.
1036 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or
1037 * false if the requested revision does not exist in the {@link WikiDB}.
1038 * Note that version zero of any page always exists.
1040 function getRevision ($version, $need_content=true) {
1041 $cache = &$this->_wikidb->_cache;
1042 $pagename = &$this->_pagename;
1044 if (! $version or $version == -1) // 0 or false
1045 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1047 assert($version > 0);
1048 $vdata = $cache->get_versiondata($pagename, $version, $need_content);
1050 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1052 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1057 * Get previous page revision.
1059 * This method find the most recent revision before a specified
1064 * @param integer $version Find most recent revision before this version.
1065 * You can also use a WikiDB_PageRevision object to specify the $version.
1067 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or false if the
1068 * requested revision does not exist in the {@link WikiDB}. Note that
1069 * unless $version is greater than zero, a revision (perhaps version zero,
1070 * the default revision) will always be found.
1072 function getRevisionBefore ($version=false, $need_content=true) {
1073 $backend = &$this->_wikidb->_backend;
1074 $pagename = &$this->_pagename;
1075 if ($version === false)
1076 $version = $this->_wikidb->_cache->get_latest_version($pagename);
1078 $version = $this->_coerce_to_version($version);
1083 $previous = $backend->get_previous_version($pagename, $version);
1084 $revision = $this->getRevision($previous, $need_content);
1085 //$backend->unlock();
1091 * Get all revisions of the WikiDB_Page.
1093 * This does not include the version zero (default) revision in the
1094 * returned revision set.
1096 * @return WikiDB_PageRevisionIterator A
1097 * WikiDB_PageRevisionIterator containing all revisions of this
1098 * WikiDB_Page in reverse order by version number.
1100 function getAllRevisions() {
1101 $backend = &$this->_wikidb->_backend;
1102 $revs = $backend->get_all_revisions($this->_pagename);
1103 return new WikiDB_PageRevisionIterator($this->_wikidb, $revs);
1107 * Find pages which link to or are linked from a page.
1108 * relations: $backend->get_links is responsible to add the relation to the pagehash
1109 * as 'linkrelation' key as pagename. See WikiDB_PageIterator::next
1110 * if (isset($next['linkrelation']))
1114 * @param boolean $reversed Which links to find: true for backlinks (default).
1116 * @return WikiDB_PageIterator A WikiDB_PageIterator containing
1117 * all matching pages.
1119 function getLinks ($reversed=true, $include_empty=false, $sortby='',
1120 $limit='', $exclude='', $want_relations=false)
1122 $backend = &$this->_wikidb->_backend;
1123 $result = $backend->get_links($this->_pagename, $reversed,
1124 $include_empty, $sortby, $limit, $exclude,
1126 return new WikiDB_PageIterator($this->_wikidb, $result,
1127 array('include_empty' => $include_empty,
1128 'sortby' => $sortby,
1130 'exclude' => $exclude,
1131 'want_relations'=> $want_relations));
1135 * All Links from other pages to this page.
1137 function getBackLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1138 $want_relations=false)
1140 return $this->getLinks(true, $include_empty, $sortby, $limit, $exclude);
1143 * Forward Links: All Links from this page to other pages.
1145 function getPageLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1146 $want_relations=false)
1148 return $this->getLinks(false, $include_empty, $sortby, $limit, $exclude);
1151 * Relations: All links from this page to other pages with relation <> 0.
1152 * is_a:=page or population:=number
1154 function getRelations($sortby='', $limit='', $exclude='') {
1155 $backend = &$this->_wikidb->_backend;
1156 $result = $backend->get_links($this->_pagename, false, true,
1157 $sortby, $limit, $exclude,
1159 // we do not care for the linked page versiondata, just the pagename and linkrelation
1160 return new WikiDB_PageIterator($this->_wikidb, $result,
1161 array('include_empty' => true,
1162 'sortby' => $sortby,
1164 'exclude' => $exclude,
1165 'want_relations'=> true));
1169 * possibly faster link existance check. not yet accelerated.
1171 function existLink($link, $reversed=false) {
1172 $backend = &$this->_wikidb->_backend;
1173 if (method_exists($backend,'exists_link'))
1174 return $backend->exists_link($this->_pagename, $link, $reversed);
1175 //$cache = &$this->_wikidb->_cache;
1176 // TODO: check cache if it is possible
1177 $iter = $this->getLinks($reversed, false);
1178 while ($page = $iter->next()) {
1179 if ($page->getName() == $link)
1186 /* Semantic relations are links with the relation pointing to another page,
1187 the so-called "RDF Triple".
1188 [San Diego] is%20a::city
1189 => "At the page San Diego there is a relation link of 'is a' to the page 'city'."
1192 /* Semantic attributes for a page.
1193 [San Diego] population:=1,305,736
1194 Attributes are links with the relation pointing to another page.
1198 * Access WikiDB_Page non version-specific meta-data.
1202 * @param string $key Which meta data to get.
1203 * Some reserved meta-data keys are:
1205 * <dt>'date' <dd> Created as unixtime
1206 * <dt>'locked'<dd> Is page locked? 'yes' or 'no'
1207 * <dt>'hits' <dd> Page hit counter.
1208 * <dt>'_cached_html' <dd> Transformed CachedMarkup object, serialized + optionally gzipped.
1209 * In SQL stored now in an extra column.
1211 * <dt>'pref' <dd> Users preferences, stored only in homepages.
1212 * <dt>'owner' <dd> Default: first author_id. We might add a group with a dot here:
1213 * E.g. "owner.users"
1214 * <dt>'perm' <dd> Permission flag to authorize read/write/execution of
1215 * page-headers and content.
1216 + <dt>'moderation'<dd> ModeratedPage data
1217 * <dt>'score' <dd> Page score (not yet implement, do we need?)
1220 * @return scalar The requested value, or false if the requested data
1223 function get($key) {
1224 $cache = &$this->_wikidb->_cache;
1225 $backend = &$this->_wikidb->_backend;
1226 if (!$key || $key[0] == '%')
1228 // several new SQL backends optimize this.
1229 if (!WIKIDB_NOCACHE_MARKUP
1230 and $key == '_cached_html'
1231 and method_exists($backend, 'get_cached_html'))
1233 return $backend->get_cached_html($this->_pagename);
1235 $data = $cache->get_pagedata($this->_pagename);
1236 return isset($data[$key]) ? $data[$key] : false;
1240 * Get all the page meta-data as a hash.
1242 * @return hash The page meta-data.
1244 function getMetaData() {
1245 $cache = &$this->_wikidb->_cache;
1246 $data = $cache->get_pagedata($this->_pagename);
1248 foreach ($data as $key => $val) {
1249 if (/*!empty($val) &&*/ $key[0] != '%')
1256 * Set page meta-data.
1261 * @param string $key Meta-data key to set.
1262 * @param string $newval New value.
1264 function set($key, $newval) {
1265 $cache = &$this->_wikidb->_cache;
1266 $backend = &$this->_wikidb->_backend;
1267 $pagename = &$this->_pagename;
1269 assert($key && $key[0] != '%');
1271 // several new SQL backends optimize this.
1272 if (!WIKIDB_NOCACHE_MARKUP
1273 and $key == '_cached_html'
1274 and method_exists($backend, 'set_cached_html'))
1276 return $backend->set_cached_html($pagename, $newval);
1279 $data = $cache->get_pagedata($pagename);
1281 if (!empty($newval)) {
1282 if (!empty($data[$key]) && $data[$key] == $newval)
1283 return; // values identical, skip update.
1286 if (empty($data[$key]))
1287 return; // values identical, skip update.
1290 $cache->update_pagedata($pagename, array($key => $newval));
1294 * Increase page hit count.
1296 * FIXME: IS this needed? Probably not.
1298 * This is a convenience function.
1299 * <pre> $page->increaseHitCount(); </pre>
1300 * is functionally identical to
1301 * <pre> $page->set('hits',$page->get('hits')+1); </pre>
1302 * but less expensive (ignores the pagadata string)
1304 * Note that this method may be implemented in more efficient ways
1305 * in certain backends.
1309 function increaseHitCount() {
1310 if (method_exists($this->_wikidb->_backend, 'increaseHitCount'))
1311 $this->_wikidb->_backend->increaseHitCount($this->_pagename);
1313 @$newhits = $this->get('hits') + 1;
1314 $this->set('hits', $newhits);
1319 * Return a string representation of the WikiDB_Page
1321 * This is really only for debugging.
1325 * @return string Printable representation of the WikiDB_Page.
1327 function asString () {
1329 printf("[%s:%s\n", get_class($this), $this->getName());
1330 print_r($this->getMetaData());
1332 $strval = ob_get_contents();
1340 * @param integer_or_object $version_or_pagerevision
1341 * Takes either the version number (and int) or a WikiDB_PageRevision
1343 * @return integer The version number.
1345 function _coerce_to_version($version_or_pagerevision) {
1346 if (method_exists($version_or_pagerevision, "getContent"))
1347 $version = $version_or_pagerevision->getVersion();
1349 $version = (int) $version_or_pagerevision;
1351 assert($version >= 0);
1355 function isUserPage ($include_empty = true) {
1356 if (!$include_empty and !$this->exists()) return false;
1357 return $this->get('pref') ? true : false;
1360 // May be empty. Either the stored owner (/Chown), or the first authorized author
1361 function getOwner() {
1362 if ($owner = $this->get('owner'))
1363 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1364 // check all revisions forwards for the first author_id
1365 $backend = &$this->_wikidb->_backend;
1366 $pagename = &$this->_pagename;
1367 $latestversion = $backend->get_latest_version($pagename);
1368 for ($v=1; $v <= $latestversion; $v++) {
1369 $rev = $this->getRevision($v,false);
1370 if ($rev and $owner = $rev->get('author_id')) {
1371 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1377 // The authenticated author of the first revision or empty if not authenticated then.
1378 function getCreator() {
1379 if ($current = $this->getRevision(1,false)) return $current->get('author_id');
1383 // The authenticated author of the current revision.
1384 function getAuthor() {
1385 if ($current = $this->getCurrentRevision(false)) return $current->get('author_id');
1389 /* Semantic Web value, not stored in the links
1390 * todo: unify with some unit knowledge
1392 function setAttribute($relation, $value) {
1393 $attr = $this->get('attributes');
1395 $attr = array($relation => $value);
1397 $attr[$relation] = $value;
1398 $this->set('attributes', $attr);
1404 * This class represents a specific revision of a WikiDB_Page within
1407 * A WikiDB_PageRevision has read-only semantics. You may only create
1408 * new revisions (and delete old ones) --- you cannot modify existing
1411 class WikiDB_PageRevision
1413 //var $_transformedContent = false; // set by WikiDB_Page::save()
1415 function WikiDB_PageRevision(&$wikidb, $pagename, $version, $versiondata = false) {
1416 $this->_wikidb = &$wikidb;
1417 $this->_pagename = $pagename;
1418 $this->_version = $version;
1419 $this->_data = $versiondata ? $versiondata : array();
1420 $this->_transformedContent = false; // set by WikiDB_Page::save()
1424 * Get the WikiDB_Page which this revision belongs to.
1428 * @return WikiDB_Page The WikiDB_Page which this revision belongs to.
1430 function getPage() {
1431 return new WikiDB_Page($this->_wikidb, $this->_pagename);
1435 * Get the version number of this revision.
1439 * @return integer The version number of this revision.
1441 function getVersion() {
1442 return $this->_version;
1446 * Determine whether this revision has defaulted content.
1448 * The default revision (version 0) of each page, as well as any
1449 * pages which are created with empty content have their content
1450 * defaulted to something like:
1452 * Describe [ThisPage] here.
1457 * @return boolean Returns true if the page has default content.
1459 function hasDefaultContents() {
1460 $data = &$this->_data;
1461 return empty($data['%content']); // FIXME: what if it's the number 0? <>'' or === false
1465 * Get the content as an array of lines.
1469 * @return array An array of lines.
1470 * The lines should contain no trailing white space.
1472 function getContent() {
1473 return explode("\n", $this->getPackedContent());
1477 * Get the pagename of the revision.
1481 * @return string pagename.
1483 function getPageName() {
1484 return $this->_pagename;
1486 function getName() {
1487 return $this->_pagename;
1491 * Determine whether revision is the latest.
1495 * @return boolean True iff the revision is the latest (most recent) one.
1497 function isCurrent() {
1498 if (!isset($this->_iscurrent)) {
1499 $page = $this->getPage();
1500 $current = $page->getCurrentRevision(false);
1501 $this->_iscurrent = $this->getVersion() == $current->getVersion();
1503 return $this->_iscurrent;
1507 * Get the transformed content of a page.
1509 * @param string $pagetype Override the page-type of the revision.
1511 * @return object An XmlContent-like object containing the page transformed
1514 function getTransformedContent($pagetype_override=false) {
1515 $backend = &$this->_wikidb->_backend;
1517 if ($pagetype_override) {
1518 // Figure out the normal page-type for this page.
1519 $type = PageType::GetPageType($this->get('pagetype'));
1520 if ($type->getName() == $pagetype_override)
1521 $pagetype_override = false; // Not really an override...
1524 if ($pagetype_override) {
1525 // Overriden page type, don't cache (or check cache).
1526 return new TransformedText($this->getPage(),
1527 $this->getPackedContent(),
1528 $this->getMetaData(),
1529 $pagetype_override);
1532 $possibly_cache_results = true;
1534 if (!USECACHE or WIKIDB_NOCACHE_MARKUP) {
1535 if (WIKIDB_NOCACHE_MARKUP == 'purge') {
1536 // flush cache for this page.
1537 $page = $this->getPage();
1538 $page->set('_cached_html', ''); // ignored with !USECACHE
1540 $possibly_cache_results = false;
1542 elseif (USECACHE and !$this->_transformedContent) {
1544 if ($this->isCurrent()) {
1545 $page = $this->getPage();
1546 $this->_transformedContent = TransformedText::unpack($page->get('_cached_html'));
1549 $possibly_cache_results = false;
1551 //$backend->unlock();
1554 if (!$this->_transformedContent) {
1555 $this->_transformedContent
1556 = new TransformedText($this->getPage(),
1557 $this->getPackedContent(),
1558 $this->getMetaData());
1560 if ($possibly_cache_results and !WIKIDB_NOCACHE_MARKUP) {
1561 // If we're still the current version, cache the transfomed page.
1563 if ($this->isCurrent()) {
1564 $page->set('_cached_html', $this->_transformedContent->pack());
1566 //$backend->unlock();
1570 return $this->_transformedContent;
1574 * Get the content as a string.
1578 * @return string The page content.
1579 * Lines are separated by new-lines.
1581 function getPackedContent() {
1582 $data = &$this->_data;
1585 if (empty($data['%content'])) {
1586 include_once('lib/InlineParser.php');
1588 // A feature similar to taglines at http://www.wlug.org.nz/
1589 // Lib from http://www.aasted.org/quote/
1590 if (defined('FORTUNE_DIR')
1591 and is_dir(FORTUNE_DIR)
1592 and in_array($GLOBALS['request']->getArg('action'),
1593 array('create','edit')))
1595 include_once("lib/fortune.php");
1596 $fortune = new Fortune();
1597 $quote = $fortune->quoteFromDir(FORTUNE_DIR);
1599 $quote = "<verbatim>\n"
1600 . str_replace("\n<br>","\n", $quote)
1601 . "</verbatim>\n\n";
1605 . sprintf(_("Describe %s here."),
1606 "[" . WikiEscape($this->_pagename) . "]");
1608 // Replace empty content with default value.
1609 return sprintf(_("Describe %s here."),
1610 "[" . WikiEscape($this->_pagename) . "]");
1613 // There is (non-default) content.
1614 assert($this->_version > 0);
1616 if (!is_string($data['%content'])) {
1617 // Content was not provided to us at init time.
1618 // (This is allowed because for some backends, fetching
1619 // the content may be expensive, and often is not wanted
1622 // In any case, now we need to get it.
1623 $data['%content'] = $this->_get_content();
1624 assert(is_string($data['%content']));
1627 return $data['%content'];
1630 function _get_content() {
1631 $cache = &$this->_wikidb->_cache;
1632 $pagename = $this->_pagename;
1633 $version = $this->_version;
1635 assert($version > 0);
1637 $newdata = $cache->get_versiondata($pagename, $version, true);
1639 assert(is_string($newdata['%content']));
1640 return $newdata['%content'];
1643 // else revision has been deleted... What to do?
1644 return __sprintf("Oops! Revision %s of %s seems to have been deleted!",
1645 $version, $pagename);
1650 * Get meta-data for this revision.
1655 * @param string $key Which meta-data to access.
1657 * Some reserved revision meta-data keys are:
1659 * <dt> 'mtime' <dd> Time this revision was created (seconds since midnight Jan 1, 1970.)
1660 * The 'mtime' meta-value is normally set automatically by the database
1661 * backend, but it may be specified explicitly when creating a new revision.
1663 * <dd> To ensure consistency of RecentChanges, the mtimes of the versions
1664 * of a page must be monotonically increasing. If an attempt is
1665 * made to create a new revision with an mtime less than that of
1666 * the preceeding revision, the new revisions timestamp is force
1667 * to be equal to that of the preceeding revision. In that case,
1668 * the originally requested mtime is preserved in 'orig_mtime'.
1669 * <dt> '_supplanted' <dd> Time this revision ceased to be the most recent.
1670 * This meta-value is <em>always</em> automatically maintained by the database
1671 * backend. (It is set from the 'mtime' meta-value of the superceding
1672 * revision.) '_supplanted' has a value of 'false' for the current revision.
1674 * FIXME: this could be refactored:
1676 * <dd> Author of the page (as he should be reported in, e.g. RecentChanges.)
1678 * <dd> Authenticated author of a page. This is used to identify
1679 * the distinctness of authors when cleaning old revisions from
1681 * <dt> 'is_minor_edit' <dd> Set if change was marked as a minor revision by the author.
1682 * <dt> 'summary' <dd> Short change summary entered by page author.
1685 * Meta-data keys must be valid C identifers (they have to start with a letter
1686 * or underscore, and can contain only alphanumerics and underscores.)
1688 * @return string The requested value, or false if the requested value
1691 function get($key) {
1692 if (!$key || $key[0] == '%')
1694 $data = &$this->_data;
1695 return isset($data[$key]) ? $data[$key] : false;
1699 * Get all the revision page meta-data as a hash.
1701 * @return hash The revision meta-data.
1703 function getMetaData() {
1705 foreach ($this->_data as $key => $val) {
1706 if (!empty($val) && $key[0] != '%')
1714 * Return a string representation of the revision.
1716 * This is really only for debugging.
1720 * @return string Printable representation of the WikiDB_Page.
1722 function asString () {
1724 printf("[%s:%d\n", get_class($this), $this->get('version'));
1725 print_r($this->_data);
1726 echo $this->getPackedContent() . "\n]\n";
1727 $strval = ob_get_contents();
1735 * Class representing a sequence of WikiDB_Pages.
1736 * TODO: Enhance to php5 iterators
1738 * apply filters for options like 'sortby', 'limit', 'exclude'
1739 * for simple queries like titleSearch, where the backend is not ready yet.
1741 class WikiDB_PageIterator
1743 function WikiDB_PageIterator(&$wikidb, &$iter, $options=false) {
1744 $this->_iter = $iter; // a WikiDB_backend_iterator
1745 $this->_wikidb = &$wikidb;
1746 $this->_options = $options;
1750 return $this->_iter->count();
1754 * Get next WikiDB_Page in sequence.
1758 * @return WikiDB_Page The next WikiDB_Page in the sequence.
1761 if ( ! ($next = $this->_iter->next()) )
1764 $pagename = &$next['pagename'];
1765 if (!is_string($pagename)) { // Bug #1327912 fixed by Joachim Lous
1766 $pagename = strval($pagename);
1769 if (isset($next['linkrelation'])) return false;
1770 trigger_error('empty pagename in WikiDB_PageIterator::next()', E_USER_WARNING);
1774 // There's always hits, but we cache only if more
1775 // (well not with file, cvs and dba)
1776 if (isset($next['pagedata']) and count($next['pagedata']) > 1) {
1777 $this->_wikidb->_cache->cache_data($next);
1778 // cache existing page id's since we iterate over all links in GleanDescription
1779 // and need them later for LinkExistingWord
1780 } elseif ($this->_options and array_key_exists('include_empty', $this->_options)
1781 and !$this->_options['include_empty'] and isset($next['id'])) {
1782 $this->_wikidb->_cache->_id_cache[$next['pagename']] = $next['id'];
1784 $page = new WikiDB_Page($this->_wikidb, $pagename);
1785 if (isset($next['linkrelation']))
1786 $page->set('linkrelation', $next['linkrelation']);
1791 * Release resources held by this iterator.
1793 * The iterator may not be used after free() is called.
1795 * There is no need to call free(), if next() has returned false.
1796 * (I.e. if you iterate through all the pages in the sequence,
1797 * you do not need to call free() --- you only need to call it
1798 * if you stop before the end of the iterator is reached.)
1803 $this->_iter->free();
1806 function asArray() {
1808 while ($page = $this->next())
1815 * Apply filters for options like 'sortby', 'limit', 'exclude'
1816 * for simple queries like titleSearch, where the backend is not ready yet.
1817 * Since iteration is usually destructive for SQL results,
1818 * we have to generate a copy.
1820 function applyFilters($options = false) {
1821 if (!$options) $options = $this->_options;
1822 if (isset($options['sortby'])) {
1824 /* this is destructive */
1825 while ($page = $this->next())
1826 $result[] = $page->getName();
1827 $this->_doSort($array, $options['sortby']);
1829 /* the rest is not destructive.
1830 * reconstruct a new iterator
1832 $pagenames = array(); $i = 0;
1833 if (isset($options['limit']))
1834 $limit = $options['limit'];
1837 if (isset($options['exclude']))
1838 $exclude = $options['exclude'];
1839 if (is_string($exclude) and !is_array($exclude))
1840 $exclude = PageList::explodePageList($exclude, false, false, $limit);
1841 foreach($array as $pagename) {
1842 if ($limit and $i++ > $limit)
1843 return new WikiDB_Array_PageIterator($pagenames);
1844 if (!empty($exclude) and !in_array($pagename, $exclude))
1845 $pagenames[] = $pagename;
1846 elseif (empty($exclude))
1847 $pagenames[] = $pagename;
1849 return new WikiDB_Array_PageIterator($pagenames);
1853 function _doSort(&$array, $sortby) {
1854 $sortby = PageList::sortby($sortby, 'init');
1855 if ($sortby == '+pagename')
1856 sort($array, SORT_STRING);
1857 elseif ($sortby == '-pagename')
1858 rsort($array, SORT_STRING);
1865 * A class which represents a sequence of WikiDB_PageRevisions.
1866 * TODO: Enhance to php5 iterators
1868 class WikiDB_PageRevisionIterator
1870 function WikiDB_PageRevisionIterator(&$wikidb, &$revisions, $options=false) {
1871 $this->_revisions = $revisions;
1872 $this->_wikidb = &$wikidb;
1873 $this->_options = $options;
1877 return $this->_revisions->count();
1881 * Get next WikiDB_PageRevision in sequence.
1885 * @return WikiDB_PageRevision
1886 * The next WikiDB_PageRevision in the sequence.
1889 if ( ! ($next = $this->_revisions->next()) )
1892 //$this->_wikidb->_cache->cache_data($next);
1894 $pagename = $next['pagename'];
1895 $version = $next['version'];
1896 $versiondata = $next['versiondata'];
1898 if (!(is_string($pagename) and $pagename != '')) {
1899 trigger_error("empty pagename",E_USER_WARNING);
1902 } else assert(is_string($pagename) and $pagename != '');
1904 if (!is_array($versiondata)) {
1905 trigger_error("empty versiondata",E_USER_WARNING);
1908 } else assert(is_array($versiondata));
1910 if (!($version > 0)) {
1911 trigger_error("invalid version",E_USER_WARNING);
1914 } else assert($version > 0);
1916 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1921 * Release resources held by this iterator.
1923 * The iterator may not be used after free() is called.
1925 * There is no need to call free(), if next() has returned false.
1926 * (I.e. if you iterate through all the revisions in the sequence,
1927 * you do not need to call free() --- you only need to call it
1928 * if you stop before the end of the iterator is reached.)
1933 $this->_revisions->free();
1936 function asArray() {
1938 while ($rev = $this->next())
1947 class WikiDB_Array_PageIterator
1949 function WikiDB_Array_PageIterator($pagenames) {
1951 $this->_dbi = $request->getDbh();
1952 $this->_pages = $pagenames;
1953 reset($this->_pages);
1956 $c =& current($this->_pages);
1957 next($this->_pages);
1958 return $c !== false ? $this->_dbi->getPage($c) : false;
1961 return count($this->_pages);
1964 function asArray() {
1965 reset($this->_pages);
1966 return $this->_pages;
1970 class WikiDB_Array_generic_iter
1972 function WikiDB_Array_generic_iter($result) {
1973 // $result may be either an array or a query result
1974 if (is_array($result)) {
1975 $this->_array = $result;
1976 } elseif (is_object($result)) {
1977 $this->_array = $result->asArray();
1979 $this->_array = array();
1981 if (!empty($this->_array))
1982 reset($this->_array);
1985 $c =& current($this->_array);
1986 next($this->_array);
1987 return $c !== false ? $c : false;
1990 return count($this->_array);
1993 function asArray() {
1994 if (!empty($this->_array))
1995 reset($this->_array);
1996 return $this->_array;
2001 * Data cache used by WikiDB.
2003 * FIXME: Maybe rename this to caching_backend (or some such).
2009 // FIXME: beautify versiondata cache. Cache only limited data?
2011 function WikiDB_cache (&$backend) {
2012 $this->_backend = &$backend;
2014 $this->_pagedata_cache = array();
2015 $this->_versiondata_cache = array();
2016 array_push ($this->_versiondata_cache, array());
2017 $this->_glv_cache = array();
2018 $this->_id_cache = array(); // formerly ->_dbi->_iwpcache (nonempty pages => id)
2022 $this->_pagedata_cache = array();
2023 $this->_versiondata_cache = array();
2024 $this->_glv_cache = array();
2025 $this->_id_cache = array();
2028 function get_pagedata($pagename) {
2029 assert(is_string($pagename) && $pagename != '');
2031 $cache = &$this->_pagedata_cache;
2032 if (!isset($cache[$pagename]) || !is_array($cache[$pagename])) {
2033 $cache[$pagename] = $this->_backend->get_pagedata($pagename);
2034 if (empty($cache[$pagename]))
2035 $cache[$pagename] = array();
2037 return $cache[$pagename];
2039 return $this->_backend->get_pagedata($pagename);
2043 function update_pagedata($pagename, $newdata) {
2044 assert(is_string($pagename) && $pagename != '');
2046 $this->_backend->update_pagedata($pagename, $newdata);
2049 if (!empty($this->_pagedata_cache[$pagename])
2050 and is_array($this->_pagedata_cache[$pagename]))
2052 $cachedata = &$this->_pagedata_cache[$pagename];
2053 foreach($newdata as $key => $val)
2054 $cachedata[$key] = $val;
2056 $this->_pagedata_cache[$pagename] = $newdata;
2060 function invalidate_cache($pagename) {
2061 unset ($this->_pagedata_cache[$pagename]);
2062 unset ($this->_versiondata_cache[$pagename]);
2063 unset ($this->_glv_cache[$pagename]);
2064 unset ($this->_id_cache[$pagename]);
2065 //unset ($this->_backend->_page_data);
2068 function delete_page($pagename) {
2069 $result = $this->_backend->delete_page($pagename);
2070 $this->invalidate_cache($pagename);
2074 function purge_page($pagename) {
2075 $result = $this->_backend->purge_page($pagename);
2076 $this->invalidate_cache($pagename);
2080 // FIXME: ugly and wrong. may overwrite full cache with partial cache
2081 function cache_data($data) {
2083 //if (isset($data['pagedata']))
2084 // $this->_pagedata_cache[$data['pagename']] = $data['pagedata'];
2087 function get_versiondata($pagename, $version, $need_content = false) {
2088 // FIXME: Seriously ugly hackage
2090 if (USECACHE) { //temporary - for debugging
2091 assert(is_string($pagename) && $pagename != '');
2092 // There is a bug here somewhere which results in an assertion failure at line 105
2093 // of ArchiveCleaner.php It goes away if we use the next line.
2094 //$need_content = true;
2095 $nc = $need_content ? '1':'0';
2096 $cache = &$this->_versiondata_cache;
2097 if (!isset($cache[$pagename][$version][$nc])
2098 || !(is_array ($cache[$pagename]))
2099 || !(is_array ($cache[$pagename][$version])))
2101 $cache[$pagename][$version][$nc] =
2102 $this->_backend->get_versiondata($pagename, $version, $need_content);
2104 // If we have retrieved all data, we may as well set the cache for
2105 // $need_content = false
2107 $cache[$pagename][$version]['0'] =& $cache[$pagename][$version]['1'];
2110 $vdata = $cache[$pagename][$version][$nc];
2112 $vdata = $this->_backend->get_versiondata($pagename, $version, $need_content);
2115 if ($readdata && $vdata && !empty($vdata['%pagedata'])) {
2116 $this->_pagedata_cache[$pagename] =& $vdata['%pagedata'];
2121 function set_versiondata($pagename, $version, $data) {
2122 //unset($this->_versiondata_cache[$pagename][$version]);
2124 $new = $this->_backend->set_versiondata($pagename, $version, $data);
2126 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2127 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2128 // Is this necessary?
2129 unset($this->_glv_cache[$pagename]);
2132 function update_versiondata($pagename, $version, $data) {
2133 $new = $this->_backend->update_versiondata($pagename, $version, $data);
2135 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2137 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2138 // Is this necessary?
2139 unset($this->_glv_cache[$pagename]);
2142 function delete_versiondata($pagename, $version) {
2143 $new = $this->_backend->delete_versiondata($pagename, $version);
2144 if (isset($this->_versiondata_cache[$pagename][$version]))
2145 unset ($this->_versiondata_cache[$pagename][$version]);
2146 // dirty latest version cache only if latest version gets deleted
2147 if (isset($this->_glv_cache[$pagename]) and $this->_glv_cache[$pagename] == $version)
2148 unset ($this->_glv_cache[$pagename]);
2151 function get_latest_version($pagename) {
2153 assert (is_string($pagename) && $pagename != '');
2154 $cache = &$this->_glv_cache;
2155 if (!isset($cache[$pagename])) {
2156 $cache[$pagename] = $this->_backend->get_latest_version($pagename);
2157 if (empty($cache[$pagename]))
2158 $cache[$pagename] = 0;
2160 return $cache[$pagename];
2162 return $this->_backend->get_latest_version($pagename);
2167 function _sql_debuglog($msg, $newline=true, $shutdown=false) {
2171 $stamp = strftime("%y%m%d-%H%M%S");
2172 $fp = fopen("/tmp/sql-$stamp.log", "a");
2173 register_shutdown_function("_sql_debuglog_shutdown_function");
2174 } elseif ($shutdown) {
2178 if ($newline) fputs($fp, "[$i++] $msg");
2179 else fwrite($fp, $msg);
2182 function _sql_debuglog_shutdown_function() {
2183 _sql_debuglog('',false,true);
2186 // $Log: not supported by cvs2svn $
2187 // Revision 1.145 2006/12/22 17:59:55 rurban
2188 // Move mailer functions into seperate MailNotify.php
2190 // Revision 1.144 2006/10/12 06:36:09 rurban
2191 // Guard against unwanted DEBUG="DEBUG" logic. In detail (WikiDB),
2192 // and generally by forcing all int constants to be defined as int.
2194 // Revision 1.143 2006/09/06 05:46:40 rurban
2195 // do db backend check on _DEBUG_SQL
2197 // Revision 1.142 2006/06/10 11:55:58 rurban
2198 // print optimize only when DEBUG
2200 // Revision 1.141 2006/04/17 17:28:21 rurban
2201 // honor getWikiPageLinks change linkto=>relation
2203 // Revision 1.140 2006/03/19 14:23:51 rurban
2204 // sf.net patch #1377011 by Matt Brown: add DATABASE_OPTIMISE_FREQUENCY
2206 // Revision 1.139 2006/01/12 16:38:07 rurban
2207 // add page method listRelations()
2208 // fix bug #1327912 numeric pagenames can break plugins (Joachim Lous)
2210 // Revision 1.138 2005/11/14 22:27:07 rurban
2211 // add linkrelation support
2212 // getPageLinks returns now an array of hashes
2213 // pass stoplist through iterator
2215 // Revision 1.137 2005/10/12 06:16:18 rurban
2216 // better From header
2218 // Revision 1.136 2005/10/03 16:14:57 rurban
2219 // improve description
2221 // Revision 1.135 2005/09/11 14:19:44 rurban
2222 // enable LIMIT support for fulltext search
2224 // Revision 1.134 2005/09/10 21:28:10 rurban
2225 // applyFilters hack to use filters after methods, which do not support them (titleSearch)
2227 // Revision 1.133 2005/08/27 09:39:10 rurban
2228 // dumphtml when not at admin page: dump the current or given page
2230 // Revision 1.132 2005/08/07 10:10:07 rurban
2231 // clean whole version cache
2233 // Revision 1.131 2005/04/23 11:30:12 rurban
2234 // allow emtpy WikiDB::getRevisionBefore(), for simplier templates (revert)
2236 // Revision 1.130 2005/04/06 06:19:30 rurban
2237 // Revert the previous wrong bugfix #1175761: USECACHE was mixed with WIKIDB_NOCACHE_MARKUP.
2238 // Fix WIKIDB_NOCACHE_MARKUP in main (always set it) and clarify it in WikiDB
2240 // Revision 1.129 2005/04/06 05:50:29 rurban
2241 // honor !USECACHE for _cached_html, fixes #1175761
2243 // Revision 1.128 2005/04/01 16:11:42 rurban
2246 // Revision 1.127 2005/02/18 20:43:40 uckelman
2247 // WikiDB::genericWarnings() is no longer used.
2249 // Revision 1.126 2005/02/04 17:58:06 rurban
2250 // minor versioncache improvement. part 2/3 of Charles Corrigan cache patch. not sure about the 0/1 issue
2252 // Revision 1.125 2005/02/03 05:08:39 rurban
2253 // ref fix by Charles Corrigan
2255 // Revision 1.124 2005/01/29 20:43:32 rurban
2256 // protect against empty request: on some occasion this happens
2258 // Revision 1.123 2005/01/25 06:58:21 rurban
2261 // Revision 1.122 2005/01/20 10:18:17 rurban
2264 // Revision 1.121 2005/01/04 20:25:01 rurban
2265 // remove old [%pagedata][_cached_html] code
2267 // Revision 1.120 2004/12/23 14:12:31 rurban
2268 // dont email on unittest
2270 // Revision 1.119 2004/12/20 16:05:00 rurban
2271 // gettext msg unification
2273 // Revision 1.118 2004/12/13 13:22:57 rurban
2274 // new BlogArchives plugin for the new blog theme. enable default box method
2275 // for all plugins. Minor search improvement.
2277 // Revision 1.117 2004/12/13 08:15:09 rurban
2278 // false is wrong. null might be better but lets play safe.
2280 // Revision 1.116 2004/12/10 22:15:00 rurban
2281 // fix $page->get('_cached_html)
2282 // refactor upgrade db helper _convert_cached_html() to be able to call them from WikiAdminUtils also.
2283 // support 2nd genericSqlQuery param (bind huge arg)
2285 // Revision 1.115 2004/12/10 02:45:27 rurban
2286 // SQL optimization:
2287 // put _cached_html from pagedata into a new seperate blob, not huge serialized string.
2288 // it is only rarelely needed: for current page only, if-not-modified
2289 // but was extracted for every simple page iteration.
2291 // Revision 1.114 2004/12/09 22:24:44 rurban
2292 // optimize on _DEBUG_SQL only. but now again on every 50th request, not just save.
2294 // Revision 1.113 2004/12/06 19:49:55 rurban
2295 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
2296 // renamed delete_page to purge_page.
2297 // enable action=edit&version=-1 to force creation of a new version.
2298 // added BABYCART_PATH config
2299 // fixed magiqc in adodb.inc.php
2300 // and some more docs
2302 // Revision 1.112 2004/11/30 17:45:53 rurban
2303 // exists_links backend implementation
2305 // Revision 1.111 2004/11/28 20:39:43 rurban
2306 // deactivate pagecache overwrite: it is wrong
2308 // Revision 1.110 2004/11/26 18:39:01 rurban
2309 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
2311 // Revision 1.109 2004/11/25 17:20:50 rurban
2312 // and again a couple of more native db args: backlinks
2314 // Revision 1.108 2004/11/23 13:35:31 rurban
2315 // add case_exact search
2317 // Revision 1.107 2004/11/21 11:59:16 rurban
2318 // remove final \n to be ob_cache independent
2320 // Revision 1.106 2004/11/20 17:35:56 rurban
2321 // improved WantedPages SQL backends
2322 // PageList::sortby new 3rd arg valid_fields (override db fields)
2323 // WantedPages sql pager inexact for performance reasons:
2324 // assume 3 wantedfrom per page, to be correct, no getTotal()
2325 // support exclude argument for get_all_pages, new _sql_set()
2327 // Revision 1.105 2004/11/20 09:16:27 rurban
2328 // Fix bad-style Cut&Paste programming errors, detected by Charles Corrigan.
2330 // Revision 1.104 2004/11/19 19:22:03 rurban
2331 // ModeratePage part1: change status
2333 // Revision 1.103 2004/11/16 17:29:04 rurban
2334 // fix remove notification error
2335 // fix creation + update id_cache update
2337 // Revision 1.102 2004/11/11 18:31:26 rurban
2338 // add simple backtrace on such general failures to get at least an idea where
2340 // Revision 1.101 2004/11/10 19:32:22 rurban
2341 // * optimize increaseHitCount, esp. for mysql.
2342 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
2343 // * Pear_DB version logic (awful but needed)
2344 // * fix broken ADODB quote
2345 // * _extract_page_data simplification
2347 // Revision 1.100 2004/11/10 15:29:20 rurban
2348 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
2349 // * ACCESS_LOG_SQL: fix cause request not yet initialized
2350 // * WikiDB: moved SQL specific methods upwards
2351 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
2352 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
2354 // Revision 1.99 2004/11/09 17:11:05 rurban
2355 // * revert to the wikidb ref passing. there's no memory abuse there.
2356 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
2357 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
2358 // are also needed at the rendering for linkExistingWikiWord().
2359 // pass options to pageiterator.
2360 // use this cache also for _get_pageid()
2361 // This saves about 8 SELECT count per page (num all pagelinks).
2362 // * fix passing of all page fields to the pageiterator.
2363 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
2365 // Revision 1.98 2004/11/07 18:34:29 rurban
2366 // more logging fixes
2368 // Revision 1.97 2004/11/07 16:02:51 rurban
2369 // new sql access log (for spam prevention), and restructured access log class
2370 // dbh->quote (generic)
2371 // pear_db: mysql specific parts seperated (using replace)
2373 // Revision 1.96 2004/11/05 22:32:15 rurban
2374 // encode the subject to be 7-bit safe
2376 // Revision 1.95 2004/11/05 20:53:35 rurban
2377 // login cleanup: better debug msg on failing login,
2378 // checked password less immediate login (bogo or anon),
2379 // checked olduser pref session error,
2380 // better PersonalPage without password warning on minimal password length=0
2381 // (which is default now)
2383 // Revision 1.94 2004/11/01 10:43:56 rurban
2384 // seperate PassUser methods into seperate dir (memory usage)
2385 // fix WikiUser (old) overlarge data session
2386 // remove wikidb arg from various page class methods, use global ->_dbi instead
2389 // Revision 1.93 2004/10/14 17:17:57 rurban
2390 // remove dbi WikiDB_Page param: use global request object instead. (memory)
2391 // allow most_popular sortby arguments
2393 // Revision 1.92 2004/10/05 17:00:04 rurban
2394 // support paging for simple lists
2395 // fix RatingDb sql backend.
2396 // remove pages from AllPages (this is ListPages then)
2398 // Revision 1.91 2004/10/04 23:41:19 rurban
2399 // delete notify: fix, @unset syntax error
2401 // Revision 1.90 2004/09/28 12:50:22 rurban
2402 // https://sourceforge.net/forum/forum.php?thread_id=1150924&forum_id=18929
2404 // Revision 1.89 2004/09/26 10:54:42 rurban
2405 // silence deferred check
2407 // Revision 1.88 2004/09/25 18:16:40 rurban
2408 // unset more unneeded _cached_html. (Guess this should fix sf.net now)
2410 // Revision 1.87 2004/09/25 16:25:40 rurban
2411 // notify on rename and remove (to be improved)
2413 // Revision 1.86 2004/09/23 18:52:06 rurban
2414 // only fortune at create
2416 // Revision 1.85 2004/09/16 08:00:51 rurban
2417 // just some comments
2419 // Revision 1.84 2004/09/14 10:34:30 rurban
2420 // fix TransformedText call to use refs
2422 // Revision 1.83 2004/09/08 13:38:00 rurban
2423 // improve loadfile stability by using markup=2 as default for undefined markup-style.
2424 // use more refs for huge objects.
2425 // fix debug=static issue in WikiPluginCached
2427 // Revision 1.82 2004/09/06 12:08:49 rurban
2428 // memory_limit on unix workaround
2429 // VisualWiki: default autosize image
2431 // Revision 1.81 2004/09/06 08:28:00 rurban
2432 // rename genericQuery to genericSqlQuery
2434 // Revision 1.80 2004/07/09 13:05:34 rurban
2437 // Revision 1.79 2004/07/09 10:06:49 rurban
2438 // Use backend specific sortby and sortable_columns method, to be able to
2439 // select between native (Db backend) and custom (PageList) sorting.
2440 // Fixed PageList::AddPageList (missed the first)
2441 // Added the author/creator.. name to AllPagesBy...
2442 // display no pages if none matched.
2443 // Improved dba and file sortby().
2444 // Use &$request reference
2446 // Revision 1.78 2004/07/08 21:32:35 rurban
2447 // Prevent from more warnings, minor db and sort optimizations
2449 // Revision 1.77 2004/07/08 19:04:42 rurban
2450 // more unittest fixes (file backend, metadata RatingsDb)
2452 // Revision 1.76 2004/07/08 17:31:43 rurban
2453 // improve numPages for file (fixing AllPagesTest)
2455 // Revision 1.75 2004/07/05 13:56:22 rurban
2456 // sqlite autoincrement fix
2458 // Revision 1.74 2004/07/03 16:51:05 rurban
2459 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
2460 // added atomic mysql REPLACE for PearDB as in ADODB
2461 // fixed _lock_tables typo links => link
2462 // fixes unserialize ADODB bug in line 180
2464 // Revision 1.73 2004/06/29 08:52:22 rurban
2465 // Use ...version() $need_content argument in WikiDB also:
2466 // To reduce the memory footprint for larger sets of pagelists,
2467 // we don't cache the content (only true or false) and
2468 // we purge the pagedata (_cached_html) also.
2469 // _cached_html is only cached for the current pagename.
2470 // => Vastly improved page existance check, ACL check, ...
2472 // Now only PagedList info=content or size needs the whole content, esp. if sortable.
2474 // Revision 1.72 2004/06/25 14:15:08 rurban
2475 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
2477 // Revision 1.71 2004/06/21 16:22:30 rurban
2478 // add DEFAULT_DUMP_DIR and HTML_DUMP_DIR constants, for easier cmdline dumps,
2479 // fixed dumping buttons locally (images/buttons/),
2480 // support pages arg for dumphtml,
2481 // optional directory arg for dumpserial + dumphtml,
2482 // fix a AllPages warning,
2483 // show dump warnings/errors on DEBUG,
2484 // don't warn just ignore on wikilens pagelist columns, if not loaded.
2485 // RateIt pagelist column is called "rating", not "ratingwidget" (Dan?)
2487 // Revision 1.70 2004/06/18 14:39:31 rurban
2488 // actually check USECACHE
2490 // Revision 1.69 2004/06/13 15:33:20 rurban
2491 // new support for arguments owner, author, creator in most relevant
2492 // PageList plugins. in WikiAdmin* via preSelectS()
2494 // Revision 1.68 2004/06/08 21:03:20 rurban
2495 // updated RssParser for XmlParser quirks (store parser object params in globals)
2497 // Revision 1.67 2004/06/07 19:12:49 rurban
2498 // fixed rename version=0, bug #966284
2500 // Revision 1.66 2004/06/07 18:57:27 rurban
2501 // fix rename: Change pagename in all linked pages
2503 // Revision 1.65 2004/06/04 20:32:53 rurban
2504 // Several locale related improvements suggested by Pierrick Meignen
2505 // LDAP fix by John Cole
2506 // reanable admin check without ENABLE_PAGEPERM in the admin plugins
2508 // Revision 1.64 2004/06/04 16:50:00 rurban
2509 // add random quotes to empty pages
2511 // Revision 1.63 2004/06/04 11:58:38 rurban
2512 // added USE_TAGLINES
2514 // Revision 1.62 2004/06/03 22:24:41 rurban
2515 // reenable admin check on !ENABLE_PAGEPERM, honor s=Wildcard arg, fix warning after Remove
2517 // Revision 1.61 2004/06/02 17:13:48 rurban
2518 // fix getRevisionBefore assertion
2520 // Revision 1.60 2004/05/28 10:09:58 rurban
2521 // fix bug #962117, incorrect init of auth_dsn
2523 // Revision 1.59 2004/05/27 17:49:05 rurban
2524 // renamed DB_Session to DbSession (in CVS also)
2525 // added WikiDB->getParam and WikiDB->getAuthParam method to get rid of globals
2526 // remove leading slash in error message
2527 // added force_unlock parameter to File_Passwd (no return on stale locks)
2528 // fixed adodb session AffectedRows
2529 // added FileFinder helpers to unify local filenames and DATA_PATH names
2530 // editpage.php: new edit toolbar javascript on ENABLE_EDIT_TOOLBAR
2532 // Revision 1.58 2004/05/18 13:59:14 rurban
2533 // rename simpleQuery to genericQuery
2535 // Revision 1.57 2004/05/16 22:07:35 rurban
2536 // check more config-default and predefined constants
2537 // various PagePerm fixes:
2538 // fix default PagePerms, esp. edit and view for Bogo and Password users
2539 // implemented Creator and Owner
2540 // BOGOUSERS renamed to BOGOUSER
2541 // fixed syntax errors in signin.tmpl
2543 // Revision 1.56 2004/05/15 22:54:49 rurban
2544 // fixed important WikiDB bug with DEBUG > 0: wrong assertion
2545 // improved SetAcl (works) and PagePerms, some WikiGroup helpers.
2547 // Revision 1.55 2004/05/12 19:27:47 rurban
2548 // revert wrong inline optimization.
2550 // Revision 1.54 2004/05/12 10:49:55 rurban
2551 // require_once fix for those libs which are loaded before FileFinder and
2552 // its automatic include_path fix, and where require_once doesn't grok
2553 // dirname(__FILE__) != './lib'
2554 // upgrade fix with PearDB
2555 // navbar.tmpl: remove spaces for IE button alignment
2557 // Revision 1.53 2004/05/08 14:06:12 rurban
2558 // new support for inlined image attributes: [image.jpg size=50x30 align=right]
2559 // minor stability and portability fixes
2561 // Revision 1.52 2004/05/06 19:26:16 rurban
2562 // improve stability, trying to find the InlineParser endless loop on sf.net
2564 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
2566 // Revision 1.51 2004/05/06 17:30:37 rurban
2567 // CategoryGroup: oops, dos2unix eol
2568 // improved phpwiki_version:
2569 // pre -= .0001 (1.3.10pre: 1030.099)
2570 // -p1 += .001 (1.3.9-p1: 1030.091)
2571 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
2572 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
2573 // backend->backendType(), backend->database(),
2574 // backend->listOfFields(),
2575 // backend->listOfTables(),
2577 // Revision 1.50 2004/05/04 22:34:25 rurban
2580 // Revision 1.49 2004/05/03 11:16:40 rurban
2581 // fixed sendPageChangeNotification
2582 // subject rewording
2584 // Revision 1.48 2004/04/29 23:03:54 rurban
2585 // fixed sf.net bug #940996
2587 // Revision 1.47 2004/04/29 19:39:44 rurban
2588 // special support for formatted plugins (one-liners)
2589 // like <small><plugin BlaBla ></small>
2590 // iter->asArray() helper for PopularNearby
2591 // db_session for older php's (no &func() allowed)
2593 // Revision 1.46 2004/04/26 20:44:34 rurban
2594 // locking table specific for better databases
2596 // Revision 1.45 2004/04/20 00:06:03 rurban
2597 // themable paging support
2599 // Revision 1.44 2004/04/19 18:27:45 rurban
2600 // Prevent from some PHP5 warnings (ref args, no :: object init)
2601 // php5 runs now through, just one wrong XmlElement object init missing
2602 // Removed unneccesary UpgradeUser lines
2603 // Changed WikiLink to omit version if current (RecentChanges)
2605 // Revision 1.43 2004/04/18 01:34:20 rurban
2606 // protect most_popular from sortby=mtime
2608 // Revision 1.42 2004/04/18 01:11:51 rurban
2609 // more numeric pagename fixes.
2610 // fixed action=upload with merge conflict warnings.
2611 // charset changed from constant to global (dynamic utf-8 switching)
2617 // c-basic-offset: 4
2618 // c-hanging-comment-ender-p: nil
2619 // indent-tabs-mode: nil