2 rcs_id('$Id: WikiDB.php,v 1.151 2007-05-01 16:20:12 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) {
965 $formatted = new TransformedText($this, $wikitext, $meta);
966 $type = $formatted->getType();
967 $meta['pagetype'] = $type->getName();
968 $links = $formatted->getWikiPageLinks(); // linkto => relation
970 $backend = &$this->_wikidb->_backend;
971 $newrevision = $this->createRevision($version, $wikitext, $meta, $links);
972 if ($newrevision and !WIKIDB_NOCACHE_MARKUP)
973 $this->set('_cached_html', $formatted->pack());
975 // FIXME: probably should have some global state information
976 // in the backend to control when to optimize.
978 // We're doing this here rather than in createRevision because
979 // postgresql can't optimize while locked.
980 if (((int)DEBUG & _DEBUG_SQL)
981 or (DATABASE_OPTIMISE_FREQUENCY > 0 and
982 (time() % DATABASE_OPTIMISE_FREQUENCY == 0))) {
983 if ($backend->optimize()) {
985 trigger_error(_("Optimizing database"), E_USER_NOTICE);
989 /* Generate notification emails? */
990 if (isa($newrevision, 'WikiDB_PageRevision')) {
991 // Save didn't fail because of concurrent updates.
992 $notify = $this->_wikidb->get('notify');
994 and is_array($notify)
995 and !isa($GLOBALS['request'],'MockRequest'))
997 include_once("lib/MailNotify.php");
998 $MailNotify = new MailNotify($newrevision->getName());
999 // FIXME: this breaks after-edit-redirect
1001 $MailNotify->onChangePage ($this->_wikidb, $wikitext, $version, $meta);
1003 $newrevision->_transformedContent = $formatted;
1006 return $newrevision;
1010 * Get the most recent revision of a page.
1014 * @return WikiDB_PageRevision The current WikiDB_PageRevision object.
1016 function getCurrentRevision ($need_content=true) {
1017 $backend = &$this->_wikidb->_backend;
1018 $cache = &$this->_wikidb->_cache;
1019 $pagename = &$this->_pagename;
1021 // Prevent deadlock in case of memory exhausted errors
1022 // Pure selection doesn't really need locking here.
1023 // sf.net bug#927395
1024 // I know it would be better to lock, but with lots of pages this deadlock is more
1025 // severe than occasionally get not the latest revision.
1026 // In spirit to wikiwiki: read fast, edit slower.
1028 $version = $cache->get_latest_version($pagename);
1029 // getRevision gets the content also!
1030 $revision = $this->getRevision($version, $need_content);
1031 //$backend->unlock();
1037 * Get a specific revision of a WikiDB_Page.
1041 * @param integer $version Which revision to get.
1043 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or
1044 * false if the requested revision does not exist in the {@link WikiDB}.
1045 * Note that version zero of any page always exists.
1047 function getRevision ($version, $need_content=true) {
1048 $cache = &$this->_wikidb->_cache;
1049 $pagename = &$this->_pagename;
1051 if (! $version or $version == -1) // 0 or false
1052 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1054 assert($version > 0);
1055 $vdata = $cache->get_versiondata($pagename, $version, $need_content);
1057 return new WikiDB_PageRevision($this->_wikidb, $pagename, 0);
1059 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1064 * Get previous page revision.
1066 * This method find the most recent revision before a specified
1071 * @param integer $version Find most recent revision before this version.
1072 * You can also use a WikiDB_PageRevision object to specify the $version.
1074 * @return WikiDB_PageRevision The requested WikiDB_PageRevision object, or false if the
1075 * requested revision does not exist in the {@link WikiDB}. Note that
1076 * unless $version is greater than zero, a revision (perhaps version zero,
1077 * the default revision) will always be found.
1079 function getRevisionBefore ($version=false, $need_content=true) {
1080 $backend = &$this->_wikidb->_backend;
1081 $pagename = &$this->_pagename;
1082 if ($version === false)
1083 $version = $this->_wikidb->_cache->get_latest_version($pagename);
1085 $version = $this->_coerce_to_version($version);
1090 $previous = $backend->get_previous_version($pagename, $version);
1091 $revision = $this->getRevision($previous, $need_content);
1092 //$backend->unlock();
1098 * Get all revisions of the WikiDB_Page.
1100 * This does not include the version zero (default) revision in the
1101 * returned revision set.
1103 * @return WikiDB_PageRevisionIterator A
1104 * WikiDB_PageRevisionIterator containing all revisions of this
1105 * WikiDB_Page in reverse order by version number.
1107 function getAllRevisions() {
1108 $backend = &$this->_wikidb->_backend;
1109 $revs = $backend->get_all_revisions($this->_pagename);
1110 return new WikiDB_PageRevisionIterator($this->_wikidb, $revs);
1114 * Find pages which link to or are linked from a page.
1115 * relations: $backend->get_links is responsible to add the relation to the pagehash
1116 * as 'linkrelation' key as pagename. See WikiDB_PageIterator::next
1117 * if (isset($next['linkrelation']))
1121 * @param boolean $reversed Which links to find: true for backlinks (default).
1123 * @return WikiDB_PageIterator A WikiDB_PageIterator containing
1124 * all matching pages.
1126 function getLinks ($reversed=true, $include_empty=false, $sortby='',
1127 $limit='', $exclude='', $want_relations=false)
1129 $backend = &$this->_wikidb->_backend;
1130 $result = $backend->get_links($this->_pagename, $reversed,
1131 $include_empty, $sortby, $limit, $exclude,
1133 return new WikiDB_PageIterator($this->_wikidb, $result,
1134 array('include_empty' => $include_empty,
1135 'sortby' => $sortby,
1137 'exclude' => $exclude,
1138 'want_relations'=> $want_relations));
1142 * All Links from other pages to this page.
1144 function getBackLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1145 $want_relations=false)
1147 return $this->getLinks(true, $include_empty, $sortby, $limit, $exclude);
1150 * Forward Links: All Links from this page to other pages.
1152 function getPageLinks($include_empty=false, $sortby='', $limit='', $exclude='',
1153 $want_relations=false)
1155 return $this->getLinks(false, $include_empty, $sortby, $limit, $exclude);
1158 * Relations: All links from this page to other pages with relation <> 0.
1159 * is_a:=page or population:=number
1161 function getRelations($sortby='', $limit='', $exclude='') {
1162 $backend = &$this->_wikidb->_backend;
1163 $result = $backend->get_links($this->_pagename, false, true,
1164 $sortby, $limit, $exclude,
1166 // we do not care for the linked page versiondata, just the pagename and linkrelation
1167 return new WikiDB_PageIterator($this->_wikidb, $result,
1168 array('include_empty' => true,
1169 'sortby' => $sortby,
1171 'exclude' => $exclude,
1172 'want_relations'=> true));
1176 * possibly faster link existance check. not yet accelerated.
1178 function existLink($link, $reversed=false) {
1179 $backend = &$this->_wikidb->_backend;
1180 if (method_exists($backend,'exists_link'))
1181 return $backend->exists_link($this->_pagename, $link, $reversed);
1182 //$cache = &$this->_wikidb->_cache;
1183 // TODO: check cache if it is possible
1184 $iter = $this->getLinks($reversed, false);
1185 while ($page = $iter->next()) {
1186 if ($page->getName() == $link)
1193 /* Semantic relations are links with the relation pointing to another page,
1194 the so-called "RDF Triple".
1195 [San Diego] is%20a::city
1196 => "At the page San Diego there is a relation link of 'is a' to the page 'city'."
1199 /* Semantic attributes for a page.
1200 [San Diego] population:=1,305,736
1201 Attributes are links with the relation pointing to another page.
1205 * Access WikiDB_Page non version-specific meta-data.
1209 * @param string $key Which meta data to get.
1210 * Some reserved meta-data keys are:
1212 * <dt>'date' <dd> Created as unixtime
1213 * <dt>'locked'<dd> Is page locked? 'yes' or 'no'
1214 * <dt>'hits' <dd> Page hit counter.
1215 * <dt>'_cached_html' <dd> Transformed CachedMarkup object, serialized + optionally gzipped.
1216 * In SQL stored now in an extra column.
1218 * <dt>'pref' <dd> Users preferences, stored only in homepages.
1219 * <dt>'owner' <dd> Default: first author_id. We might add a group with a dot here:
1220 * E.g. "owner.users"
1221 * <dt>'perm' <dd> Permission flag to authorize read/write/execution of
1222 * page-headers and content.
1223 + <dt>'moderation'<dd> ModeratedPage data
1224 * <dt>'score' <dd> Page score (not yet implement, do we need?)
1227 * @return scalar The requested value, or false if the requested data
1230 function get($key) {
1231 $cache = &$this->_wikidb->_cache;
1232 $backend = &$this->_wikidb->_backend;
1233 if (!$key || $key[0] == '%')
1235 // several new SQL backends optimize this.
1236 if (!WIKIDB_NOCACHE_MARKUP
1237 and $key == '_cached_html'
1238 and method_exists($backend, 'get_cached_html'))
1240 return $backend->get_cached_html($this->_pagename);
1242 $data = $cache->get_pagedata($this->_pagename);
1243 return isset($data[$key]) ? $data[$key] : false;
1247 * Get all the page meta-data as a hash.
1249 * @return hash The page meta-data.
1251 function getMetaData() {
1252 $cache = &$this->_wikidb->_cache;
1253 $data = $cache->get_pagedata($this->_pagename);
1255 foreach ($data as $key => $val) {
1256 if (/*!empty($val) &&*/ $key[0] != '%')
1263 * Set page meta-data.
1268 * @param string $key Meta-data key to set.
1269 * @param string $newval New value.
1271 function set($key, $newval) {
1272 $cache = &$this->_wikidb->_cache;
1273 $backend = &$this->_wikidb->_backend;
1274 $pagename = &$this->_pagename;
1276 assert($key && $key[0] != '%');
1278 // several new SQL backends optimize this.
1279 if (!WIKIDB_NOCACHE_MARKUP
1280 and $key == '_cached_html'
1281 and method_exists($backend, 'set_cached_html'))
1283 return $backend->set_cached_html($pagename, $newval);
1286 $data = $cache->get_pagedata($pagename);
1288 if (!empty($newval)) {
1289 if (!empty($data[$key]) && $data[$key] == $newval)
1290 return; // values identical, skip update.
1293 if (empty($data[$key]))
1294 return; // values identical, skip update.
1297 $cache->update_pagedata($pagename, array($key => $newval));
1301 * Increase page hit count.
1303 * FIXME: IS this needed? Probably not.
1305 * This is a convenience function.
1306 * <pre> $page->increaseHitCount(); </pre>
1307 * is functionally identical to
1308 * <pre> $page->set('hits',$page->get('hits')+1); </pre>
1309 * but less expensive (ignores the pagadata string)
1311 * Note that this method may be implemented in more efficient ways
1312 * in certain backends.
1316 function increaseHitCount() {
1317 if (method_exists($this->_wikidb->_backend, 'increaseHitCount'))
1318 $this->_wikidb->_backend->increaseHitCount($this->_pagename);
1320 @$newhits = $this->get('hits') + 1;
1321 $this->set('hits', $newhits);
1326 * Return a string representation of the WikiDB_Page
1328 * This is really only for debugging.
1332 * @return string Printable representation of the WikiDB_Page.
1334 function asString () {
1336 printf("[%s:%s\n", get_class($this), $this->getName());
1337 print_r($this->getMetaData());
1339 $strval = ob_get_contents();
1347 * @param integer_or_object $version_or_pagerevision
1348 * Takes either the version number (and int) or a WikiDB_PageRevision
1350 * @return integer The version number.
1352 function _coerce_to_version($version_or_pagerevision) {
1353 if (method_exists($version_or_pagerevision, "getContent"))
1354 $version = $version_or_pagerevision->getVersion();
1356 $version = (int) $version_or_pagerevision;
1358 assert($version >= 0);
1362 function isUserPage ($include_empty = true) {
1363 if (!$include_empty and !$this->exists()) return false;
1364 return $this->get('pref') ? true : false;
1367 // May be empty. Either the stored owner (/Chown), or the first authorized author
1368 function getOwner() {
1369 if ($owner = $this->get('owner'))
1370 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1371 // check all revisions forwards for the first author_id
1372 $backend = &$this->_wikidb->_backend;
1373 $pagename = &$this->_pagename;
1374 $latestversion = $backend->get_latest_version($pagename);
1375 for ($v=1; $v <= $latestversion; $v++) {
1376 $rev = $this->getRevision($v,false);
1377 if ($rev and $owner = $rev->get('author_id')) {
1378 return ($owner == _("The PhpWiki programming team")) ? ADMIN_USER : $owner;
1384 // The authenticated author of the first revision or empty if not authenticated then.
1385 function getCreator() {
1386 if ($current = $this->getRevision(1,false)) return $current->get('author_id');
1390 // The authenticated author of the current revision.
1391 function getAuthor() {
1392 if ($current = $this->getCurrentRevision(false)) return $current->get('author_id');
1396 /* Semantic Web value, not stored in the links
1397 * todo: unify with some unit knowledge
1399 function setAttribute($relation, $value) {
1400 $attr = $this->get('attributes');
1402 $attr = array($relation => $value);
1404 $attr[$relation] = $value;
1405 $this->set('attributes', $attr);
1411 * This class represents a specific revision of a WikiDB_Page within
1414 * A WikiDB_PageRevision has read-only semantics. You may only create
1415 * new revisions (and delete old ones) --- you cannot modify existing
1418 class WikiDB_PageRevision
1420 //var $_transformedContent = false; // set by WikiDB_Page::save()
1422 function WikiDB_PageRevision(&$wikidb, $pagename, $version, $versiondata = false) {
1423 $this->_wikidb = &$wikidb;
1424 $this->_pagename = $pagename;
1425 $this->_version = $version;
1426 $this->_data = $versiondata ? $versiondata : array();
1427 $this->_transformedContent = false; // set by WikiDB_Page::save()
1431 * Get the WikiDB_Page which this revision belongs to.
1435 * @return WikiDB_Page The WikiDB_Page which this revision belongs to.
1437 function getPage() {
1438 return new WikiDB_Page($this->_wikidb, $this->_pagename);
1442 * Get the version number of this revision.
1446 * @return integer The version number of this revision.
1448 function getVersion() {
1449 return $this->_version;
1453 * Determine whether this revision has defaulted content.
1455 * The default revision (version 0) of each page, as well as any
1456 * pages which are created with empty content have their content
1457 * defaulted to something like:
1459 * Describe [ThisPage] here.
1464 * @return boolean Returns true if the page has default content.
1466 function hasDefaultContents() {
1467 $data = &$this->_data;
1468 return empty($data['%content']); // FIXME: what if it's the number 0? <>'' or === false
1472 * Get the content as an array of lines.
1476 * @return array An array of lines.
1477 * The lines should contain no trailing white space.
1479 function getContent() {
1480 return explode("\n", $this->getPackedContent());
1484 * Get the pagename of the revision.
1488 * @return string pagename.
1490 function getPageName() {
1491 return $this->_pagename;
1493 function getName() {
1494 return $this->_pagename;
1498 * Determine whether revision is the latest.
1502 * @return boolean True iff the revision is the latest (most recent) one.
1504 function isCurrent() {
1505 if (!isset($this->_iscurrent)) {
1506 $page = $this->getPage();
1507 $current = $page->getCurrentRevision(false);
1508 $this->_iscurrent = $this->getVersion() == $current->getVersion();
1510 return $this->_iscurrent;
1514 * Get the transformed content of a page.
1516 * @param string $pagetype Override the page-type of the revision.
1518 * @return object An XmlContent-like object containing the page transformed
1521 function getTransformedContent($pagetype_override=false) {
1522 $backend = &$this->_wikidb->_backend;
1524 if ($pagetype_override) {
1525 // Figure out the normal page-type for this page.
1526 $type = PageType::GetPageType($this->get('pagetype'));
1527 if ($type->getName() == $pagetype_override)
1528 $pagetype_override = false; // Not really an override...
1531 if ($pagetype_override) {
1532 // Overriden page type, don't cache (or check cache).
1533 return new TransformedText($this->getPage(),
1534 $this->getPackedContent(),
1535 $this->getMetaData(),
1536 $pagetype_override);
1539 $possibly_cache_results = true;
1541 if (!USECACHE or WIKIDB_NOCACHE_MARKUP) {
1542 if (WIKIDB_NOCACHE_MARKUP == 'purge') {
1543 // flush cache for this page.
1544 $page = $this->getPage();
1545 $page->set('_cached_html', ''); // ignored with !USECACHE
1547 $possibly_cache_results = false;
1549 elseif (USECACHE and !$this->_transformedContent) {
1551 if ($this->isCurrent()) {
1552 $page = $this->getPage();
1553 $this->_transformedContent = TransformedText::unpack($page->get('_cached_html'));
1556 $possibly_cache_results = false;
1558 //$backend->unlock();
1561 if (!$this->_transformedContent) {
1562 $this->_transformedContent
1563 = new TransformedText($this->getPage(),
1564 $this->getPackedContent(),
1565 $this->getMetaData());
1567 if ($possibly_cache_results and !WIKIDB_NOCACHE_MARKUP) {
1568 // If we're still the current version, cache the transfomed page.
1570 if ($this->isCurrent()) {
1571 $page->set('_cached_html', $this->_transformedContent->pack());
1573 //$backend->unlock();
1577 return $this->_transformedContent;
1581 * Get the content as a string.
1585 * @return string The page content.
1586 * Lines are separated by new-lines.
1588 function getPackedContent() {
1589 $data = &$this->_data;
1591 if (empty($data['%content'])
1592 || (!$this->_wikidb->isWikiPage($this->_pagename)
1593 && $this->isCurrent())) {
1594 include_once('lib/InlineParser.php');
1596 // A feature similar to taglines at http://www.wlug.org.nz/
1597 // Lib from http://www.aasted.org/quote/
1598 if (defined('FORTUNE_DIR')
1599 and is_dir(FORTUNE_DIR)
1600 and in_array($GLOBALS['request']->getArg('action'),
1601 array('create','edit')))
1603 include_once("lib/fortune.php");
1604 $fortune = new Fortune();
1605 $quote = $fortune->quoteFromDir(FORTUNE_DIR);
1607 $quote = "<verbatim>\n"
1608 . str_replace("\n<br>","\n", $quote)
1609 . "</verbatim>\n\n";
1613 . sprintf(_("Describe %s here."),
1614 "[" . WikiEscape($this->_pagename) . "]");
1616 // Replace empty content with default value.
1617 return sprintf(_("Describe %s here."),
1618 "[" . WikiEscape($this->_pagename) . "]");
1621 // There is (non-default) content.
1622 assert($this->_version > 0);
1624 if (!is_string($data['%content'])) {
1625 // Content was not provided to us at init time.
1626 // (This is allowed because for some backends, fetching
1627 // the content may be expensive, and often is not wanted
1630 // In any case, now we need to get it.
1631 $data['%content'] = $this->_get_content();
1632 assert(is_string($data['%content']));
1635 return $data['%content'];
1638 function _get_content() {
1639 $cache = &$this->_wikidb->_cache;
1640 $pagename = $this->_pagename;
1641 $version = $this->_version;
1643 assert($version > 0);
1645 $newdata = $cache->get_versiondata($pagename, $version, true);
1647 assert(is_string($newdata['%content']));
1648 return $newdata['%content'];
1651 // else revision has been deleted... What to do?
1652 return __sprintf("Oops! Revision %s of %s seems to have been deleted!",
1653 $version, $pagename);
1658 * Get meta-data for this revision.
1663 * @param string $key Which meta-data to access.
1665 * Some reserved revision meta-data keys are:
1667 * <dt> 'mtime' <dd> Time this revision was created (seconds since midnight Jan 1, 1970.)
1668 * The 'mtime' meta-value is normally set automatically by the database
1669 * backend, but it may be specified explicitly when creating a new revision.
1671 * <dd> To ensure consistency of RecentChanges, the mtimes of the versions
1672 * of a page must be monotonically increasing. If an attempt is
1673 * made to create a new revision with an mtime less than that of
1674 * the preceeding revision, the new revisions timestamp is force
1675 * to be equal to that of the preceeding revision. In that case,
1676 * the originally requested mtime is preserved in 'orig_mtime'.
1677 * <dt> '_supplanted' <dd> Time this revision ceased to be the most recent.
1678 * This meta-value is <em>always</em> automatically maintained by the database
1679 * backend. (It is set from the 'mtime' meta-value of the superceding
1680 * revision.) '_supplanted' has a value of 'false' for the current revision.
1682 * FIXME: this could be refactored:
1684 * <dd> Author of the page (as he should be reported in, e.g. RecentChanges.)
1686 * <dd> Authenticated author of a page. This is used to identify
1687 * the distinctness of authors when cleaning old revisions from
1689 * <dt> 'is_minor_edit' <dd> Set if change was marked as a minor revision by the author.
1690 * <dt> 'summary' <dd> Short change summary entered by page author.
1693 * Meta-data keys must be valid C identifers (they have to start with a letter
1694 * or underscore, and can contain only alphanumerics and underscores.)
1696 * @return string The requested value, or false if the requested value
1699 function get($key) {
1700 if (!$key || $key[0] == '%')
1702 $data = &$this->_data;
1703 return isset($data[$key]) ? $data[$key] : false;
1707 * Get all the revision page meta-data as a hash.
1709 * @return hash The revision meta-data.
1711 function getMetaData() {
1713 foreach ($this->_data as $key => $val) {
1714 if (!empty($val) && $key[0] != '%')
1722 * Return a string representation of the revision.
1724 * This is really only for debugging.
1728 * @return string Printable representation of the WikiDB_Page.
1730 function asString () {
1732 printf("[%s:%d\n", get_class($this), $this->get('version'));
1733 print_r($this->_data);
1734 echo $this->getPackedContent() . "\n]\n";
1735 $strval = ob_get_contents();
1743 * Class representing a sequence of WikiDB_Pages.
1744 * TODO: Enhance to php5 iterators
1746 * apply filters for options like 'sortby', 'limit', 'exclude'
1747 * for simple queries like titleSearch, where the backend is not ready yet.
1749 class WikiDB_PageIterator
1751 function WikiDB_PageIterator(&$wikidb, &$iter, $options=false) {
1752 $this->_iter = $iter; // a WikiDB_backend_iterator
1753 $this->_wikidb = &$wikidb;
1754 $this->_options = $options;
1758 return $this->_iter->count();
1762 * Get next WikiDB_Page in sequence.
1766 * @return WikiDB_Page The next WikiDB_Page in the sequence.
1769 if ( ! ($next = $this->_iter->next()) )
1772 $pagename = &$next['pagename'];
1773 if (!is_string($pagename)) { // Bug #1327912 fixed by Joachim Lous
1774 /*if (is_array($pagename) && isset($pagename['linkto'])) {
1775 $pagename = $pagename['linkto'];
1777 $pagename = strval($pagename);*/
1778 trigger_error("WikiDB_PageIterator->next pagename", E_USER_WARNING);
1781 if (isset($next['linkrelation'])
1782 or isset($next['pagedata']['linkrelation'])) return false;
1783 trigger_error('empty pagename in WikiDB_PageIterator::next()', E_USER_WARNING);
1787 // There's always hits, but we cache only if more
1788 // (well not with file, cvs and dba)
1789 if (isset($next['pagedata']) and count($next['pagedata']) > 1) {
1790 $this->_wikidb->_cache->cache_data($next);
1791 // cache existing page id's since we iterate over all links in GleanDescription
1792 // and need them later for LinkExistingWord
1793 } elseif ($this->_options and array_key_exists('include_empty', $this->_options)
1794 and !$this->_options['include_empty'] and isset($next['id'])) {
1795 $this->_wikidb->_cache->_id_cache[$next['pagename']] = $next['id'];
1797 $page = new WikiDB_Page($this->_wikidb, $pagename);
1798 if (isset($next['linkrelation']))
1799 $page->set('linkrelation', $next['linkrelation']);
1804 * Release resources held by this iterator.
1806 * The iterator may not be used after free() is called.
1808 * There is no need to call free(), if next() has returned false.
1809 * (I.e. if you iterate through all the pages in the sequence,
1810 * you do not need to call free() --- you only need to call it
1811 * if you stop before the end of the iterator is reached.)
1816 $this->_iter->free();
1819 function asArray() {
1821 while ($page = $this->next())
1828 * Apply filters for options like 'sortby', 'limit', 'exclude'
1829 * for simple queries like titleSearch, where the backend is not ready yet.
1830 * Since iteration is usually destructive for SQL results,
1831 * we have to generate a copy.
1833 function applyFilters($options = false) {
1834 if (!$options) $options = $this->_options;
1835 if (isset($options['sortby'])) {
1837 /* this is destructive */
1838 while ($page = $this->next())
1839 $result[] = $page->getName();
1840 $this->_doSort($array, $options['sortby']);
1842 /* the rest is not destructive.
1843 * reconstruct a new iterator
1845 $pagenames = array(); $i = 0;
1846 if (isset($options['limit']))
1847 $limit = $options['limit'];
1850 if (isset($options['exclude']))
1851 $exclude = $options['exclude'];
1852 if (is_string($exclude) and !is_array($exclude))
1853 $exclude = PageList::explodePageList($exclude, false, false, $limit);
1854 foreach($array as $pagename) {
1855 if ($limit and $i++ > $limit)
1856 return new WikiDB_Array_PageIterator($pagenames);
1857 if (!empty($exclude) and !in_array($pagename, $exclude))
1858 $pagenames[] = $pagename;
1859 elseif (empty($exclude))
1860 $pagenames[] = $pagename;
1862 return new WikiDB_Array_PageIterator($pagenames);
1866 function _doSort(&$array, $sortby) {
1867 $sortby = PageList::sortby($sortby, 'init');
1868 if ($sortby == '+pagename')
1869 sort($array, SORT_STRING);
1870 elseif ($sortby == '-pagename')
1871 rsort($array, SORT_STRING);
1878 * A class which represents a sequence of WikiDB_PageRevisions.
1879 * TODO: Enhance to php5 iterators
1881 class WikiDB_PageRevisionIterator
1883 function WikiDB_PageRevisionIterator(&$wikidb, &$revisions, $options=false) {
1884 $this->_revisions = $revisions;
1885 $this->_wikidb = &$wikidb;
1886 $this->_options = $options;
1890 return $this->_revisions->count();
1894 * Get next WikiDB_PageRevision in sequence.
1898 * @return WikiDB_PageRevision
1899 * The next WikiDB_PageRevision in the sequence.
1902 if ( ! ($next = $this->_revisions->next()) )
1905 //$this->_wikidb->_cache->cache_data($next);
1907 $pagename = $next['pagename'];
1908 $version = $next['version'];
1909 $versiondata = $next['versiondata'];
1911 if (!(is_string($pagename) and $pagename != '')) {
1912 trigger_error("empty pagename",E_USER_WARNING);
1915 } else assert(is_string($pagename) and $pagename != '');
1917 if (!is_array($versiondata)) {
1918 trigger_error("empty versiondata",E_USER_WARNING);
1921 } else assert(is_array($versiondata));
1923 if (!($version > 0)) {
1924 trigger_error("invalid version",E_USER_WARNING);
1927 } else assert($version > 0);
1929 return new WikiDB_PageRevision($this->_wikidb, $pagename, $version,
1934 * Release resources held by this iterator.
1936 * The iterator may not be used after free() is called.
1938 * There is no need to call free(), if next() has returned false.
1939 * (I.e. if you iterate through all the revisions in the sequence,
1940 * you do not need to call free() --- you only need to call it
1941 * if you stop before the end of the iterator is reached.)
1946 $this->_revisions->free();
1949 function asArray() {
1951 while ($rev = $this->next())
1960 class WikiDB_Array_PageIterator
1962 function WikiDB_Array_PageIterator($pagenames) {
1964 $this->_dbi = $request->getDbh();
1965 $this->_pages = $pagenames;
1966 reset($this->_pages);
1969 $c =& current($this->_pages);
1970 next($this->_pages);
1971 return $c !== false ? $this->_dbi->getPage($c) : false;
1974 return count($this->_pages);
1977 function asArray() {
1978 reset($this->_pages);
1979 return $this->_pages;
1983 class WikiDB_Array_generic_iter
1985 function WikiDB_Array_generic_iter($result) {
1986 // $result may be either an array or a query result
1987 if (is_array($result)) {
1988 $this->_array = $result;
1989 } elseif (is_object($result)) {
1990 $this->_array = $result->asArray();
1992 $this->_array = array();
1994 if (!empty($this->_array))
1995 reset($this->_array);
1998 $c =& current($this->_array);
1999 next($this->_array);
2000 return $c !== false ? $c : false;
2003 return count($this->_array);
2006 function asArray() {
2007 if (!empty($this->_array))
2008 reset($this->_array);
2009 return $this->_array;
2014 * Data cache used by WikiDB.
2016 * FIXME: Maybe rename this to caching_backend (or some such).
2022 // FIXME: beautify versiondata cache. Cache only limited data?
2024 function WikiDB_cache (&$backend) {
2025 $this->_backend = &$backend;
2027 $this->_pagedata_cache = array();
2028 $this->_versiondata_cache = array();
2029 array_push ($this->_versiondata_cache, array());
2030 $this->_glv_cache = array();
2031 $this->_id_cache = array(); // formerly ->_dbi->_iwpcache (nonempty pages => id)
2035 $this->_pagedata_cache = array();
2036 $this->_versiondata_cache = array();
2037 $this->_glv_cache = array();
2038 $this->_id_cache = array();
2041 function get_pagedata($pagename) {
2042 assert(is_string($pagename) && $pagename != '');
2044 $cache = &$this->_pagedata_cache;
2045 if (!isset($cache[$pagename]) || !is_array($cache[$pagename])) {
2046 $cache[$pagename] = $this->_backend->get_pagedata($pagename);
2047 if (empty($cache[$pagename]))
2048 $cache[$pagename] = array();
2050 return $cache[$pagename];
2052 return $this->_backend->get_pagedata($pagename);
2056 function update_pagedata($pagename, $newdata) {
2057 assert(is_string($pagename) && $pagename != '');
2059 $this->_backend->update_pagedata($pagename, $newdata);
2062 if (!empty($this->_pagedata_cache[$pagename])
2063 and is_array($this->_pagedata_cache[$pagename]))
2065 $cachedata = &$this->_pagedata_cache[$pagename];
2066 foreach($newdata as $key => $val)
2067 $cachedata[$key] = $val;
2069 $this->_pagedata_cache[$pagename] = $newdata;
2073 function invalidate_cache($pagename) {
2074 unset ($this->_pagedata_cache[$pagename]);
2075 unset ($this->_versiondata_cache[$pagename]);
2076 unset ($this->_glv_cache[$pagename]);
2077 unset ($this->_id_cache[$pagename]);
2078 //unset ($this->_backend->_page_data);
2081 function delete_page($pagename) {
2082 $result = $this->_backend->delete_page($pagename);
2083 $this->invalidate_cache($pagename);
2087 function purge_page($pagename) {
2088 $result = $this->_backend->purge_page($pagename);
2089 $this->invalidate_cache($pagename);
2093 // FIXME: ugly and wrong. may overwrite full cache with partial cache
2094 function cache_data($data) {
2096 //if (isset($data['pagedata']))
2097 // $this->_pagedata_cache[$data['pagename']] = $data['pagedata'];
2100 function get_versiondata($pagename, $version, $need_content = false) {
2101 // FIXME: Seriously ugly hackage
2103 if (USECACHE) { //temporary - for debugging
2104 assert(is_string($pagename) && $pagename != '');
2105 // There is a bug here somewhere which results in an assertion failure at line 105
2106 // of ArchiveCleaner.php It goes away if we use the next line.
2107 //$need_content = true;
2108 $nc = $need_content ? '1':'0';
2109 $cache = &$this->_versiondata_cache;
2110 if (!isset($cache[$pagename][$version][$nc])
2111 || !(is_array ($cache[$pagename]))
2112 || !(is_array ($cache[$pagename][$version])))
2114 $cache[$pagename][$version][$nc] =
2115 $this->_backend->get_versiondata($pagename, $version, $need_content);
2117 // If we have retrieved all data, we may as well set the cache for
2118 // $need_content = false
2120 $cache[$pagename][$version]['0'] =& $cache[$pagename][$version]['1'];
2123 $vdata = $cache[$pagename][$version][$nc];
2125 $vdata = $this->_backend->get_versiondata($pagename, $version, $need_content);
2128 if ($readdata && $vdata && !empty($vdata['%pagedata'])) {
2129 $this->_pagedata_cache[$pagename] =& $vdata['%pagedata'];
2134 function set_versiondata($pagename, $version, $data) {
2135 //unset($this->_versiondata_cache[$pagename][$version]);
2137 $new = $this->_backend->set_versiondata($pagename, $version, $data);
2139 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2140 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2141 // Is this necessary?
2142 unset($this->_glv_cache[$pagename]);
2145 function update_versiondata($pagename, $version, $data) {
2146 $new = $this->_backend->update_versiondata($pagename, $version, $data);
2148 $this->_versiondata_cache[$pagename][$version]['1'] = $data;
2150 $this->_versiondata_cache[$pagename][$version]['0'] = $data;
2151 // Is this necessary?
2152 unset($this->_glv_cache[$pagename]);
2155 function delete_versiondata($pagename, $version) {
2156 $new = $this->_backend->delete_versiondata($pagename, $version);
2157 if (isset($this->_versiondata_cache[$pagename][$version]))
2158 unset ($this->_versiondata_cache[$pagename][$version]);
2159 // dirty latest version cache only if latest version gets deleted
2160 if (isset($this->_glv_cache[$pagename]) and $this->_glv_cache[$pagename] == $version)
2161 unset ($this->_glv_cache[$pagename]);
2164 function get_latest_version($pagename) {
2166 assert (is_string($pagename) && $pagename != '');
2167 $cache = &$this->_glv_cache;
2168 if (!isset($cache[$pagename])) {
2169 $cache[$pagename] = $this->_backend->get_latest_version($pagename);
2170 if (empty($cache[$pagename]))
2171 $cache[$pagename] = 0;
2173 return $cache[$pagename];
2175 return $this->_backend->get_latest_version($pagename);
2180 function _sql_debuglog($msg, $newline=true, $shutdown=false) {
2184 $stamp = strftime("%y%m%d-%H%M%S");
2185 $fp = fopen(TEMP_DIR."/sql-$stamp.log", "a");
2186 register_shutdown_function("_sql_debuglog_shutdown_function");
2187 } elseif ($shutdown) {
2191 if ($newline) fputs($fp, "[$i++] $msg");
2192 else fwrite($fp, $msg);
2195 function _sql_debuglog_shutdown_function() {
2196 _sql_debuglog('',false,true);
2199 // $Log: not supported by cvs2svn $
2200 // Revision 1.150 2007/03/18 17:35:27 rurban
2203 // Revision 1.149 2007/02/17 14:16:37 rurban
2204 // isWikiPage no error on empty pagenames. MailNotify->onChangePage fix by ??
2206 // Revision 1.148 2007/01/27 21:53:03 rurban
2207 // Use TEMP_DIR for debug sql.log
2209 // Revision 1.147 2007/01/04 16:41:41 rurban
2210 // Some pageiterators also set ['pagedata']['linkrelation'], hmm
2212 // Revision 1.146 2007/01/02 13:20:00 rurban
2213 // 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.
2215 // Revision 1.145 2006/12/22 17:59:55 rurban
2216 // Move mailer functions into seperate MailNotify.php
2218 // Revision 1.144 2006/10/12 06:36:09 rurban
2219 // Guard against unwanted DEBUG="DEBUG" logic. In detail (WikiDB),
2220 // and generally by forcing all int constants to be defined as int.
2222 // Revision 1.143 2006/09/06 05:46:40 rurban
2223 // do db backend check on _DEBUG_SQL
2225 // Revision 1.142 2006/06/10 11:55:58 rurban
2226 // print optimize only when DEBUG
2228 // Revision 1.141 2006/04/17 17:28:21 rurban
2229 // honor getWikiPageLinks change linkto=>relation
2231 // Revision 1.140 2006/03/19 14:23:51 rurban
2232 // sf.net patch #1377011 by Matt Brown: add DATABASE_OPTIMISE_FREQUENCY
2234 // Revision 1.139 2006/01/12 16:38:07 rurban
2235 // add page method listRelations()
2236 // fix bug #1327912 numeric pagenames can break plugins (Joachim Lous)
2238 // Revision 1.138 2005/11/14 22:27:07 rurban
2239 // add linkrelation support
2240 // getPageLinks returns now an array of hashes
2241 // pass stoplist through iterator
2243 // Revision 1.137 2005/10/12 06:16:18 rurban
2244 // better From header
2246 // Revision 1.136 2005/10/03 16:14:57 rurban
2247 // improve description
2249 // Revision 1.135 2005/09/11 14:19:44 rurban
2250 // enable LIMIT support for fulltext search
2252 // Revision 1.134 2005/09/10 21:28:10 rurban
2253 // applyFilters hack to use filters after methods, which do not support them (titleSearch)
2255 // Revision 1.133 2005/08/27 09:39:10 rurban
2256 // dumphtml when not at admin page: dump the current or given page
2258 // Revision 1.132 2005/08/07 10:10:07 rurban
2259 // clean whole version cache
2261 // Revision 1.131 2005/04/23 11:30:12 rurban
2262 // allow emtpy WikiDB::getRevisionBefore(), for simplier templates (revert)
2264 // Revision 1.130 2005/04/06 06:19:30 rurban
2265 // Revert the previous wrong bugfix #1175761: USECACHE was mixed with WIKIDB_NOCACHE_MARKUP.
2266 // Fix WIKIDB_NOCACHE_MARKUP in main (always set it) and clarify it in WikiDB
2268 // Revision 1.129 2005/04/06 05:50:29 rurban
2269 // honor !USECACHE for _cached_html, fixes #1175761
2271 // Revision 1.128 2005/04/01 16:11:42 rurban
2274 // Revision 1.127 2005/02/18 20:43:40 uckelman
2275 // WikiDB::genericWarnings() is no longer used.
2277 // Revision 1.126 2005/02/04 17:58:06 rurban
2278 // minor versioncache improvement. part 2/3 of Charles Corrigan cache patch. not sure about the 0/1 issue
2280 // Revision 1.125 2005/02/03 05:08:39 rurban
2281 // ref fix by Charles Corrigan
2283 // Revision 1.124 2005/01/29 20:43:32 rurban
2284 // protect against empty request: on some occasion this happens
2286 // Revision 1.123 2005/01/25 06:58:21 rurban
2289 // Revision 1.122 2005/01/20 10:18:17 rurban
2292 // Revision 1.121 2005/01/04 20:25:01 rurban
2293 // remove old [%pagedata][_cached_html] code
2295 // Revision 1.120 2004/12/23 14:12:31 rurban
2296 // dont email on unittest
2298 // Revision 1.119 2004/12/20 16:05:00 rurban
2299 // gettext msg unification
2301 // Revision 1.118 2004/12/13 13:22:57 rurban
2302 // new BlogArchives plugin for the new blog theme. enable default box method
2303 // for all plugins. Minor search improvement.
2305 // Revision 1.117 2004/12/13 08:15:09 rurban
2306 // false is wrong. null might be better but lets play safe.
2308 // Revision 1.116 2004/12/10 22:15:00 rurban
2309 // fix $page->get('_cached_html)
2310 // refactor upgrade db helper _convert_cached_html() to be able to call them from WikiAdminUtils also.
2311 // support 2nd genericSqlQuery param (bind huge arg)
2313 // Revision 1.115 2004/12/10 02:45:27 rurban
2314 // SQL optimization:
2315 // put _cached_html from pagedata into a new seperate blob, not huge serialized string.
2316 // it is only rarelely needed: for current page only, if-not-modified
2317 // but was extracted for every simple page iteration.
2319 // Revision 1.114 2004/12/09 22:24:44 rurban
2320 // optimize on _DEBUG_SQL only. but now again on every 50th request, not just save.
2322 // Revision 1.113 2004/12/06 19:49:55 rurban
2323 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
2324 // renamed delete_page to purge_page.
2325 // enable action=edit&version=-1 to force creation of a new version.
2326 // added BABYCART_PATH config
2327 // fixed magiqc in adodb.inc.php
2328 // and some more docs
2330 // Revision 1.112 2004/11/30 17:45:53 rurban
2331 // exists_links backend implementation
2333 // Revision 1.111 2004/11/28 20:39:43 rurban
2334 // deactivate pagecache overwrite: it is wrong
2336 // Revision 1.110 2004/11/26 18:39:01 rurban
2337 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
2339 // Revision 1.109 2004/11/25 17:20:50 rurban
2340 // and again a couple of more native db args: backlinks
2342 // Revision 1.108 2004/11/23 13:35:31 rurban
2343 // add case_exact search
2345 // Revision 1.107 2004/11/21 11:59:16 rurban
2346 // remove final \n to be ob_cache independent
2348 // Revision 1.106 2004/11/20 17:35:56 rurban
2349 // improved WantedPages SQL backends
2350 // PageList::sortby new 3rd arg valid_fields (override db fields)
2351 // WantedPages sql pager inexact for performance reasons:
2352 // assume 3 wantedfrom per page, to be correct, no getTotal()
2353 // support exclude argument for get_all_pages, new _sql_set()
2355 // Revision 1.105 2004/11/20 09:16:27 rurban
2356 // Fix bad-style Cut&Paste programming errors, detected by Charles Corrigan.
2358 // Revision 1.104 2004/11/19 19:22:03 rurban
2359 // ModeratePage part1: change status
2361 // Revision 1.103 2004/11/16 17:29:04 rurban
2362 // fix remove notification error
2363 // fix creation + update id_cache update
2365 // Revision 1.102 2004/11/11 18:31:26 rurban
2366 // add simple backtrace on such general failures to get at least an idea where
2368 // Revision 1.101 2004/11/10 19:32:22 rurban
2369 // * optimize increaseHitCount, esp. for mysql.
2370 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
2371 // * Pear_DB version logic (awful but needed)
2372 // * fix broken ADODB quote
2373 // * _extract_page_data simplification
2375 // Revision 1.100 2004/11/10 15:29:20 rurban
2376 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
2377 // * ACCESS_LOG_SQL: fix cause request not yet initialized
2378 // * WikiDB: moved SQL specific methods upwards
2379 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
2380 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
2382 // Revision 1.99 2004/11/09 17:11:05 rurban
2383 // * revert to the wikidb ref passing. there's no memory abuse there.
2384 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
2385 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
2386 // are also needed at the rendering for linkExistingWikiWord().
2387 // pass options to pageiterator.
2388 // use this cache also for _get_pageid()
2389 // This saves about 8 SELECT count per page (num all pagelinks).
2390 // * fix passing of all page fields to the pageiterator.
2391 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
2393 // Revision 1.98 2004/11/07 18:34:29 rurban
2394 // more logging fixes
2396 // Revision 1.97 2004/11/07 16:02:51 rurban
2397 // new sql access log (for spam prevention), and restructured access log class
2398 // dbh->quote (generic)
2399 // pear_db: mysql specific parts seperated (using replace)
2401 // Revision 1.96 2004/11/05 22:32:15 rurban
2402 // encode the subject to be 7-bit safe
2404 // Revision 1.95 2004/11/05 20:53:35 rurban
2405 // login cleanup: better debug msg on failing login,
2406 // checked password less immediate login (bogo or anon),
2407 // checked olduser pref session error,
2408 // better PersonalPage without password warning on minimal password length=0
2409 // (which is default now)
2411 // Revision 1.94 2004/11/01 10:43:56 rurban
2412 // seperate PassUser methods into seperate dir (memory usage)
2413 // fix WikiUser (old) overlarge data session
2414 // remove wikidb arg from various page class methods, use global ->_dbi instead
2417 // Revision 1.93 2004/10/14 17:17:57 rurban
2418 // remove dbi WikiDB_Page param: use global request object instead. (memory)
2419 // allow most_popular sortby arguments
2421 // Revision 1.92 2004/10/05 17:00:04 rurban
2422 // support paging for simple lists
2423 // fix RatingDb sql backend.
2424 // remove pages from AllPages (this is ListPages then)
2426 // Revision 1.91 2004/10/04 23:41:19 rurban
2427 // delete notify: fix, @unset syntax error
2429 // Revision 1.90 2004/09/28 12:50:22 rurban
2430 // https://sourceforge.net/forum/forum.php?thread_id=1150924&forum_id=18929
2432 // Revision 1.89 2004/09/26 10:54:42 rurban
2433 // silence deferred check
2435 // Revision 1.88 2004/09/25 18:16:40 rurban
2436 // unset more unneeded _cached_html. (Guess this should fix sf.net now)
2438 // Revision 1.87 2004/09/25 16:25:40 rurban
2439 // notify on rename and remove (to be improved)
2441 // Revision 1.86 2004/09/23 18:52:06 rurban
2442 // only fortune at create
2444 // Revision 1.85 2004/09/16 08:00:51 rurban
2445 // just some comments
2447 // Revision 1.84 2004/09/14 10:34:30 rurban
2448 // fix TransformedText call to use refs
2450 // Revision 1.83 2004/09/08 13:38:00 rurban
2451 // improve loadfile stability by using markup=2 as default for undefined markup-style.
2452 // use more refs for huge objects.
2453 // fix debug=static issue in WikiPluginCached
2455 // Revision 1.82 2004/09/06 12:08:49 rurban
2456 // memory_limit on unix workaround
2457 // VisualWiki: default autosize image
2459 // Revision 1.81 2004/09/06 08:28:00 rurban
2460 // rename genericQuery to genericSqlQuery
2462 // Revision 1.80 2004/07/09 13:05:34 rurban
2465 // Revision 1.79 2004/07/09 10:06:49 rurban
2466 // Use backend specific sortby and sortable_columns method, to be able to
2467 // select between native (Db backend) and custom (PageList) sorting.
2468 // Fixed PageList::AddPageList (missed the first)
2469 // Added the author/creator.. name to AllPagesBy...
2470 // display no pages if none matched.
2471 // Improved dba and file sortby().
2472 // Use &$request reference
2474 // Revision 1.78 2004/07/08 21:32:35 rurban
2475 // Prevent from more warnings, minor db and sort optimizations
2477 // Revision 1.77 2004/07/08 19:04:42 rurban
2478 // more unittest fixes (file backend, metadata RatingsDb)
2480 // Revision 1.76 2004/07/08 17:31:43 rurban
2481 // improve numPages for file (fixing AllPagesTest)
2483 // Revision 1.75 2004/07/05 13:56:22 rurban
2484 // sqlite autoincrement fix
2486 // Revision 1.74 2004/07/03 16:51:05 rurban
2487 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
2488 // added atomic mysql REPLACE for PearDB as in ADODB
2489 // fixed _lock_tables typo links => link
2490 // fixes unserialize ADODB bug in line 180
2492 // Revision 1.73 2004/06/29 08:52:22 rurban
2493 // Use ...version() $need_content argument in WikiDB also:
2494 // To reduce the memory footprint for larger sets of pagelists,
2495 // we don't cache the content (only true or false) and
2496 // we purge the pagedata (_cached_html) also.
2497 // _cached_html is only cached for the current pagename.
2498 // => Vastly improved page existance check, ACL check, ...
2500 // Now only PagedList info=content or size needs the whole content, esp. if sortable.
2502 // Revision 1.72 2004/06/25 14:15:08 rurban
2503 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
2505 // Revision 1.71 2004/06/21 16:22:30 rurban
2506 // add DEFAULT_DUMP_DIR and HTML_DUMP_DIR constants, for easier cmdline dumps,
2507 // fixed dumping buttons locally (images/buttons/),
2508 // support pages arg for dumphtml,
2509 // optional directory arg for dumpserial + dumphtml,
2510 // fix a AllPages warning,
2511 // show dump warnings/errors on DEBUG,
2512 // don't warn just ignore on wikilens pagelist columns, if not loaded.
2513 // RateIt pagelist column is called "rating", not "ratingwidget" (Dan?)
2515 // Revision 1.70 2004/06/18 14:39:31 rurban
2516 // actually check USECACHE
2518 // Revision 1.69 2004/06/13 15:33:20 rurban
2519 // new support for arguments owner, author, creator in most relevant
2520 // PageList plugins. in WikiAdmin* via preSelectS()
2522 // Revision 1.68 2004/06/08 21:03:20 rurban
2523 // updated RssParser for XmlParser quirks (store parser object params in globals)
2525 // Revision 1.67 2004/06/07 19:12:49 rurban
2526 // fixed rename version=0, bug #966284
2528 // Revision 1.66 2004/06/07 18:57:27 rurban
2529 // fix rename: Change pagename in all linked pages
2531 // Revision 1.65 2004/06/04 20:32:53 rurban
2532 // Several locale related improvements suggested by Pierrick Meignen
2533 // LDAP fix by John Cole
2534 // reanable admin check without ENABLE_PAGEPERM in the admin plugins
2536 // Revision 1.64 2004/06/04 16:50:00 rurban
2537 // add random quotes to empty pages
2539 // Revision 1.63 2004/06/04 11:58:38 rurban
2540 // added USE_TAGLINES
2542 // Revision 1.62 2004/06/03 22:24:41 rurban
2543 // reenable admin check on !ENABLE_PAGEPERM, honor s=Wildcard arg, fix warning after Remove
2545 // Revision 1.61 2004/06/02 17:13:48 rurban
2546 // fix getRevisionBefore assertion
2548 // Revision 1.60 2004/05/28 10:09:58 rurban
2549 // fix bug #962117, incorrect init of auth_dsn
2551 // Revision 1.59 2004/05/27 17:49:05 rurban
2552 // renamed DB_Session to DbSession (in CVS also)
2553 // added WikiDB->getParam and WikiDB->getAuthParam method to get rid of globals
2554 // remove leading slash in error message
2555 // added force_unlock parameter to File_Passwd (no return on stale locks)
2556 // fixed adodb session AffectedRows
2557 // added FileFinder helpers to unify local filenames and DATA_PATH names
2558 // editpage.php: new edit toolbar javascript on ENABLE_EDIT_TOOLBAR
2560 // Revision 1.58 2004/05/18 13:59:14 rurban
2561 // rename simpleQuery to genericQuery
2563 // Revision 1.57 2004/05/16 22:07:35 rurban
2564 // check more config-default and predefined constants
2565 // various PagePerm fixes:
2566 // fix default PagePerms, esp. edit and view for Bogo and Password users
2567 // implemented Creator and Owner
2568 // BOGOUSERS renamed to BOGOUSER
2569 // fixed syntax errors in signin.tmpl
2571 // Revision 1.56 2004/05/15 22:54:49 rurban
2572 // fixed important WikiDB bug with DEBUG > 0: wrong assertion
2573 // improved SetAcl (works) and PagePerms, some WikiGroup helpers.
2575 // Revision 1.55 2004/05/12 19:27:47 rurban
2576 // revert wrong inline optimization.
2578 // Revision 1.54 2004/05/12 10:49:55 rurban
2579 // require_once fix for those libs which are loaded before FileFinder and
2580 // its automatic include_path fix, and where require_once doesn't grok
2581 // dirname(__FILE__) != './lib'
2582 // upgrade fix with PearDB
2583 // navbar.tmpl: remove spaces for IE button alignment
2585 // Revision 1.53 2004/05/08 14:06:12 rurban
2586 // new support for inlined image attributes: [image.jpg size=50x30 align=right]
2587 // minor stability and portability fixes
2589 // Revision 1.52 2004/05/06 19:26:16 rurban
2590 // improve stability, trying to find the InlineParser endless loop on sf.net
2592 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
2594 // Revision 1.51 2004/05/06 17:30:37 rurban
2595 // CategoryGroup: oops, dos2unix eol
2596 // improved phpwiki_version:
2597 // pre -= .0001 (1.3.10pre: 1030.099)
2598 // -p1 += .001 (1.3.9-p1: 1030.091)
2599 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
2600 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
2601 // backend->backendType(), backend->database(),
2602 // backend->listOfFields(),
2603 // backend->listOfTables(),
2605 // Revision 1.50 2004/05/04 22:34:25 rurban
2608 // Revision 1.49 2004/05/03 11:16:40 rurban
2609 // fixed sendPageChangeNotification
2610 // subject rewording
2612 // Revision 1.48 2004/04/29 23:03:54 rurban
2613 // fixed sf.net bug #940996
2615 // Revision 1.47 2004/04/29 19:39:44 rurban
2616 // special support for formatted plugins (one-liners)
2617 // like <small><plugin BlaBla ></small>
2618 // iter->asArray() helper for PopularNearby
2619 // db_session for older php's (no &func() allowed)
2621 // Revision 1.46 2004/04/26 20:44:34 rurban
2622 // locking table specific for better databases
2624 // Revision 1.45 2004/04/20 00:06:03 rurban
2625 // themable paging support
2627 // Revision 1.44 2004/04/19 18:27:45 rurban
2628 // Prevent from some PHP5 warnings (ref args, no :: object init)
2629 // php5 runs now through, just one wrong XmlElement object init missing
2630 // Removed unneccesary UpgradeUser lines
2631 // Changed WikiLink to omit version if current (RecentChanges)
2633 // Revision 1.43 2004/04/18 01:34:20 rurban
2634 // protect most_popular from sortby=mtime
2636 // Revision 1.42 2004/04/18 01:11:51 rurban
2637 // more numeric pagename fixes.
2638 // fixed action=upload with merge conflict warnings.
2639 // charset changed from constant to global (dynamic utf-8 switching)
2645 // c-basic-offset: 4
2646 // c-hanging-comment-ender-p: nil
2647 // indent-tabs-mode: nil