2 rcs_id('$Id: PearDB.php,v 1.49 2004-05-03 21:35:30 rurban Exp $');
4 require_once('lib/WikiDB/backend.php');
5 //require_once('lib/FileFinder.php');
6 require_once('lib/ErrorManager.php');
7 require_once('DB.php'); // Always favor use our local pear copy
9 class WikiDB_backend_PearDB
10 extends WikiDB_backend
14 function WikiDB_backend_PearDB ($dbparams) {
15 // Find and include PEAR's DB.php.
16 //$pearFinder = new PearFileFinder;
17 //$pearFinder->includeOnce('DB.php');
19 // Install filter to handle bogus error notices from buggy DB.php's.
21 $ErrorManager->pushErrorHandler(new WikiMethodCb($this, '_pear_notice_filter'));
23 // Open connection to database
24 $this->_dsn = $dbparams['dsn'];
25 $dboptions = array('persistent' => true,
27 if (preg_match('/^pgsql/',$this->_dsn))
28 $dboptions['persistent'] = false;
29 $this->_dbh = DB::connect($this->_dsn, $dboptions);
31 if (DB::isError($dbh)) {
32 trigger_error(sprintf("Can't connect to database: %s",
33 $this->_pear_error_message($dbh)),
36 $dbh->setErrorHandling(PEAR_ERROR_CALLBACK,
37 array(&$this, '_pear_error_callback'));
38 $dbh->setFetchMode(DB_FETCHMODE_ASSOC);
40 $prefix = isset($dbparams['prefix']) ? $dbparams['prefix'] : '';
43 = array('page_tbl' => $prefix . 'page',
44 'version_tbl' => $prefix . 'version',
45 'link_tbl' => $prefix . 'link',
46 'recent_tbl' => $prefix . 'recent',
47 'nonempty_tbl' => $prefix . 'nonempty');
48 $page_tbl = $this->_table_names['page_tbl'];
49 $version_tbl = $this->_table_names['version_tbl'];
50 $this->page_tbl_fields = "$page_tbl.id as id, $page_tbl.pagename as pagename, $page_tbl.hits as hits, $page_tbl.pagedata as pagedata";
51 $this->version_tbl_fields = "$version_tbl.version as version, $version_tbl.mtime as mtime, ".
52 "$version_tbl.minor_edit as minor_edit, $version_tbl.content as content, $version_tbl.versiondata as versiondata";
55 = array('maxmajor' => "MAX(CASE WHEN minor_edit=0 THEN version END)",
56 'maxminor' => "MAX(CASE WHEN minor_edit<>0 THEN version END)",
57 'maxversion' => "MAX(version)");
59 $this->_lock_count = 0;
63 * Close database connection.
68 if ($this->_lock_count) {
69 trigger_error( "WARNING: database still locked " . '(lock_count = $this->_lock_count)' . "\n<br />",
72 $this->_dbh->setErrorHandling(PEAR_ERROR_PRINT); // prevent recursive loops.
73 $this->unlock('force');
75 $this->_dbh->disconnect();
82 function is_wiki_page($pagename) {
84 extract($this->_table_names);
85 return $dbh->getOne(sprintf("SELECT $page_tbl.id as id"
86 . " FROM $nonempty_tbl, $page_tbl"
87 . " WHERE $nonempty_tbl.id=$page_tbl.id"
88 . " AND pagename='%s'",
89 $dbh->quoteString($pagename)));
92 function get_all_pagenames() {
94 extract($this->_table_names);
95 return $dbh->getCol("SELECT pagename"
96 . " FROM $nonempty_tbl, $page_tbl"
97 . " WHERE $nonempty_tbl.id=$page_tbl.id");
100 function numPages($filter=false, $exclude='') {
102 extract($this->_table_names);
103 return $dbh->getOne("SELECT count(*)"
104 . " FROM $nonempty_tbl, $page_tbl"
105 . " WHERE $nonempty_tbl.id=$page_tbl.id");
109 * Read page information from database.
111 function get_pagedata($pagename) {
113 $page_tbl = $this->_table_names['page_tbl'];
115 //trigger_error("GET_PAGEDATA $pagename", E_USER_NOTICE);
117 $result = $dbh->getRow(sprintf("SELECT %s FROM $page_tbl WHERE pagename='%s'",
118 $this->page_tbl_fields,
119 $dbh->quoteString($pagename)),
123 return $this->_extract_page_data($result);
126 function _extract_page_data(&$query_result) {
127 extract($query_result);
128 $data = $this->_unserialize($pagedata);
129 $data['hits'] = $hits;
133 function update_pagedata($pagename, $newdata) {
135 $page_tbl = $this->_table_names['page_tbl'];
137 // Hits is the only thing we can update in a fast manner.
138 if (count($newdata) == 1 && isset($newdata['hits'])) {
139 // Note that this will fail silently if the page does not
140 // have a record in the page table. Since it's just the
141 // hit count, who cares?
142 $dbh->query(sprintf("UPDATE $page_tbl SET hits=%d WHERE pagename='%s'",
143 $newdata['hits'], $dbh->quoteString($pagename)));
148 $data = $this->get_pagedata($pagename);
151 $this->_get_pageid($pagename, true); // Creates page record
154 @$hits = (int)$data['hits'];
155 unset($data['hits']);
157 foreach ($newdata as $key => $val) {
160 else if (empty($val))
166 $dbh->query(sprintf("UPDATE $page_tbl"
167 . " SET hits=%d, pagedata='%s'"
168 . " WHERE pagename='%s'",
170 $dbh->quoteString($this->_serialize($data)),
171 $dbh->quoteString($pagename)));
176 function _get_pageid($pagename, $create_if_missing = false) {
179 $page_tbl = $this->_table_names['page_tbl'];
181 $query = sprintf("SELECT id FROM $page_tbl WHERE pagename='%s'",
182 $dbh->quoteString($pagename));
184 if (!$create_if_missing)
185 return $dbh->getOne($query);
188 $id = $dbh->getOne($query);
190 $max_id = $dbh->getOne("SELECT MAX(id) FROM $page_tbl");
192 $dbh->query(sprintf("INSERT INTO $page_tbl"
193 . " (id,pagename,hits)"
194 . " VALUES (%d,'%s',0)",
195 $id, $dbh->quoteString($pagename)));
201 function get_latest_version($pagename) {
203 extract($this->_table_names);
205 (int)$dbh->getOne(sprintf("SELECT latestversion"
206 . " FROM $page_tbl, $recent_tbl"
207 . " WHERE $page_tbl.id=$recent_tbl.id"
208 . " AND pagename='%s'",
209 $dbh->quoteString($pagename)));
212 function get_previous_version($pagename, $version) {
214 extract($this->_table_names);
217 (int)$dbh->getOne(sprintf("SELECT version"
218 . " FROM $version_tbl, $page_tbl"
219 . " WHERE $version_tbl.id=$page_tbl.id"
220 . " AND pagename='%s'"
221 . " AND version < %d"
222 . " ORDER BY version DESC"
224 $dbh->quoteString($pagename),
231 * @param $version int Which version to get.
233 * @return hash The version data, or false if specified version does not
236 function get_versiondata($pagename, $version, $want_content = false) {
238 extract($this->_table_names);
240 assert(is_string($pagename) and $pagename != "");
241 assert($version > 0);
243 //trigger_error("GET_REVISION $pagename $version $want_content", E_USER_NOTICE);
244 // FIXME: optimization: sometimes don't get page data?
247 $fields = $this->page_tbl_fields . "," . $this->version_tbl_fields;
250 $fields = $this->page_tbl_fields . ","
251 . "mtime, minor_edit, versiondata,"
252 . "content<>'' AS have_content";
255 $result = $dbh->getRow(sprintf("SELECT $fields"
256 . " FROM $page_tbl, $version_tbl"
257 . " WHERE $page_tbl.id=$version_tbl.id"
258 . " AND pagename='%s'"
260 $dbh->quoteString($pagename), $version),
263 return $this->_extract_version_data($result);
266 function _extract_version_data(&$query_result) {
270 extract($query_result);
271 $data = $this->_unserialize($versiondata);
273 $data['mtime'] = $mtime;
274 $data['is_minor_edit'] = !empty($minor_edit);
277 $data['%content'] = $content;
278 elseif ($have_content)
279 $data['%content'] = true;
281 $data['%content'] = '';
283 // FIXME: this is ugly.
284 if (isset($pagename)) {
285 // Query also includes page data.
286 // We might as well send that back too...
287 $data['%pagedata'] = $this->_extract_page_data($query_result);
295 * Create a new revision of a page.
297 function set_versiondata($pagename, $version, $data) {
299 $version_tbl = $this->_table_names['version_tbl'];
301 $minor_edit = (int) !empty($data['is_minor_edit']);
302 unset($data['is_minor_edit']);
304 $mtime = (int)$data['mtime'];
305 unset($data['mtime']);
306 assert(!empty($mtime));
308 @$content = (string) $data['%content'];
309 unset($data['%content']);
311 unset($data['%pagedata']);
314 $id = $this->_get_pageid($pagename, true);
316 // FIXME: optimize: mysql can do this with one REPLACE INTO (I think).
317 $dbh->query(sprintf("DELETE FROM $version_tbl"
318 . " WHERE id=%d AND version=%d",
321 $dbh->query(sprintf("INSERT INTO $version_tbl"
322 . " (id,version,mtime,minor_edit,content,versiondata)"
323 . " VALUES(%d,%d,%d,%d,'%s','%s')",
324 $id, $version, $mtime, $minor_edit,
325 $dbh->quoteString($content),
326 $dbh->quoteString($this->_serialize($data))));
328 $this->_update_recent_table($id);
329 $this->_update_nonempty_table($id);
335 * Delete an old revision of a page.
337 function delete_versiondata($pagename, $version) {
339 extract($this->_table_names);
342 if ( ($id = $this->_get_pageid($pagename)) ) {
343 $dbh->query("DELETE FROM $version_tbl"
344 . " WHERE id=$id AND version=$version");
345 $this->_update_recent_table($id);
346 // This shouldn't be needed (as long as the latestversion
347 // never gets deleted.) But, let's be safe.
348 $this->_update_nonempty_table($id);
354 * Delete page completely from the database.
355 * I'm not sure if this is what we want. Maybe just delete the revisions
357 function delete_page($pagename) {
359 extract($this->_table_names);
362 if ( ($id = $this->_get_pageid($pagename, false)) ) {
363 $dbh->query("DELETE FROM $version_tbl WHERE id=$id");
364 $dbh->query("DELETE FROM $recent_tbl WHERE id=$id");
365 $dbh->query("DELETE FROM $nonempty_tbl WHERE id=$id");
366 $dbh->query("DELETE FROM $link_tbl WHERE linkfrom=$id");
367 $nlinks = $dbh->getOne("SELECT COUNT(*) FROM $link_tbl WHERE linkto=$id");
369 // We're still in the link table (dangling link) so we can't delete this
371 $dbh->query("UPDATE $page_tbl SET hits=0, pagedata='' WHERE id=$id");
374 $dbh->query("DELETE FROM $page_tbl WHERE id=$id");
376 $this->_update_recent_table();
377 $this->_update_nonempty_table();
383 // The only thing we might be interested in updating which we can
384 // do fast in the flags (minor_edit). I think the default
385 // update_versiondata will work fine...
386 //function update_versiondata($pagename, $version, $data) {
389 function set_links($pagename, $links) {
390 // Update link table.
391 // FIXME: optimize: mysql can do this all in one big INSERT.
394 extract($this->_table_names);
397 $pageid = $this->_get_pageid($pagename, true);
399 $dbh->query("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
402 foreach($links as $link) {
403 if (isset($linkseen[$link]))
405 $linkseen[$link] = true;
406 $linkid = $this->_get_pageid($link, true);
407 $dbh->query("INSERT INTO $link_tbl (linkfrom, linkto)"
408 . " VALUES ($pageid, $linkid)");
415 * Find pages which link to or are linked from a page.
417 function get_links($pagename, $reversed = true) {
419 extract($this->_table_names);
422 list($have,$want) = array('linkee', 'linker');
424 list($have,$want) = array('linker', 'linkee');
427 $qpagename = $dbh->quoteString($pagename);
429 $result = $dbh->query("SELECT $want.id as id, $want.pagename as pagename, $want.hits as hits, $want.pagedata as pagedata"
430 . " FROM $link_tbl, $page_tbl AS linker, $page_tbl AS linkee"
431 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
432 . " AND $have.pagename='$qpagename'"
433 //. " GROUP BY $want.id"
434 . " ORDER BY $want.pagename");
436 return new WikiDB_backend_PearDB_iter($this, $result);
439 function get_all_pages($include_deleted=false,$sortby=false,$limit=false) {
441 extract($this->_table_names);
442 if ($limit) $limit = "LIMIT $limit";
444 if ($sortby) $orderby = 'ORDER BY ' . PageList::sortby($sortby,'db');
446 if (strstr($orderby,' mtime')) {
447 if ($include_deleted) {
448 $result = $dbh->query("SELECT "
449 . $this->page_tbl_fields
450 . " FROM $page_tbl, $recent_tbl, $version_tbl"
451 . " WHERE $page_tbl.id=$recent_tbl.id"
452 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
453 . " $orderby $limit");
456 $result = $dbh->query("SELECT "
457 . $this->page_tbl_fields
458 . " FROM $nonempty_tbl, $page_tbl, $recent_tbl, $version_tbl"
459 . " WHERE $nonempty_tbl.id=$page_tbl.id"
460 . " AND $page_tbl.id=$recent_tbl.id"
461 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
462 . " $orderby $limit");
465 if ($include_deleted) {
466 $result = $dbh->query("SELECT * FROM $page_tbl $orderby $limit");
469 $result = $dbh->query("SELECT "
470 . $this->page_tbl_fields
471 . " FROM $nonempty_tbl, $page_tbl"
472 . " WHERE $nonempty_tbl.id=$page_tbl.id"
473 . " $orderby $limit");
476 return new WikiDB_backend_PearDB_iter($this, $result);
482 function text_search($search = '', $fullsearch = false) {
484 extract($this->_table_names);
486 $table = "$nonempty_tbl, $page_tbl";
487 $join_clause = "$nonempty_tbl.id=$page_tbl.id";
488 $fields = $this->page_tbl_fields;
489 $callback = new WikiMethodCb($this, '_sql_match_clause');
492 $table .= ", $recent_tbl";
493 $join_clause .= " AND $page_tbl.id=$recent_tbl.id";
495 $table .= ", $version_tbl";
496 $join_clause .= " AND $page_tbl.id=$version_tbl.id AND latestversion=version";
498 $fields .= ", " . $this->version_tbl_fields;
499 $callback = new WikiMethodCb($this, '_fullsearch_sql_match_clause');
502 $search_clause = $search->makeSqlClause($callback);
504 $result = $dbh->query("SELECT $fields FROM $table"
505 . " WHERE $join_clause"
506 . " AND ($search_clause)"
507 . " ORDER BY pagename");
509 return new WikiDB_backend_PearDB_iter($this, $result);
512 //Todo: check if the better Mysql MATCH operator is supported,
513 // (ranked search) and also google like expressions.
514 function _sql_match_clause($word) {
515 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word);
516 $word = $this->_dbh->quoteString($word);
517 //$page_tbl = $this->_table_names['page_tbl'];
518 //Note: Mysql 4.1.0 has a bug which fails with binary fields.
519 // e.g. if word is lowercased.
520 // http://bugs.mysql.com/bug.php?id=1491
521 return "LOWER(pagename) LIKE '%$word%'";
524 function _fullsearch_sql_match_clause($word) {
525 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word);
526 $word = $this->_dbh->quoteString($word);
527 //$page_tbl = $this->_table_names['page_tbl'];
528 //Mysql 4.1.1 has a bug which fails here if word is lowercased.
529 return "LOWER(pagename) LIKE '%$word%' OR content LIKE '%$word%'";
533 * Find highest or lowest hit counts.
535 function most_popular($limit=false,$sortby = '') {
537 extract($this->_table_names);
544 $where = " AND hits > 0";
546 if ($limit) $limit = " LIMIT $limit";
548 if ($sortby) $orderby = ' ORDER BY ' . PageList::sortby($sortby,'db');
549 else $orderby = " ORDER BY hits $order";
550 //$limitclause = $limit ? " LIMIT $limit" : '';
551 $result = $dbh->query("SELECT "
552 . $this->page_tbl_fields
553 . " FROM $nonempty_tbl, $page_tbl"
554 . " WHERE $nonempty_tbl.id=$page_tbl.id"
559 return new WikiDB_backend_PearDB_iter($this, $result);
563 * Find recent changes.
565 function most_recent($params) {
568 $include_minor_revisions = false;
569 $exclude_major_revisions = false;
570 $include_all_revisions = false;
574 extract($this->_table_names);
578 $pick[] = "mtime >= $since";
581 if ($include_all_revisions) {
582 // Include all revisions of each page.
583 $table = "$page_tbl, $version_tbl";
584 $join_clause = "$page_tbl.id=$version_tbl.id";
586 if ($exclude_major_revisions) {
587 // Include only minor revisions
588 $pick[] = "minor_edit <> 0";
590 elseif (!$include_minor_revisions) {
591 // Include only major revisions
592 $pick[] = "minor_edit = 0";
596 $table = "$page_tbl, $recent_tbl";
597 $join_clause = "$page_tbl.id=$recent_tbl.id";
598 $table .= ", $version_tbl";
599 $join_clause .= " AND $version_tbl.id=$page_tbl.id";
601 if ($exclude_major_revisions) {
602 // Include only most recent minor revision
603 $pick[] = 'version=latestminor';
605 elseif (!$include_minor_revisions) {
606 // Include only most recent major revision
607 $pick[] = 'version=latestmajor';
610 // Include only the latest revision (whether major or minor).
611 $pick[] ='version=latestversion';
619 $limitclause = $limit ? " LIMIT $limit" : '';
620 $where_clause = $join_clause;
622 $where_clause .= " AND " . join(" AND ", $pick);
624 // FIXME: use SQL_BUFFER_RESULT for mysql?
625 $result = $dbh->query("SELECT "
626 . $this->page_tbl_fields . ", " . $this->version_tbl_fields
628 . " WHERE $where_clause"
629 . " ORDER BY mtime $order"
632 return new WikiDB_backend_PearDB_iter($this, $result);
636 * Rename page in the database.
638 function rename_page($pagename, $to) {
640 extract($this->_table_names);
643 if ( ($id = $this->_get_pageid($pagename, false)) ) {
644 if ($new = $this->_get_pageid($to, false)) {
646 //this page does not exist (already verified before), but exists in the page table.
647 //so we delete this page.
648 $dbh->query(sprintf("DELETE FROM $page_tbl WHERE id=$id",
649 $dbh->quoteString($to)));
651 $dbh->query(sprintf("UPDATE $page_tbl SET pagename='%s' WHERE id=$id",
652 $dbh->quoteString($to)));
658 function _update_recent_table($pageid = false) {
660 extract($this->_table_names);
661 extract($this->_expressions);
663 $pageid = (int)$pageid;
667 $dbh->query("DELETE FROM $recent_tbl"
668 . ( $pageid ? " WHERE id=$pageid" : ""));
670 $dbh->query( "INSERT INTO $recent_tbl"
671 . " (id, latestversion, latestmajor, latestminor)"
672 . " SELECT id, $maxversion, $maxmajor, $maxminor"
673 . " FROM $version_tbl"
674 . ( $pageid ? " WHERE id=$pageid" : "")
679 function _update_nonempty_table($pageid = false) {
681 extract($this->_table_names);
683 $pageid = (int)$pageid;
687 $dbh->query("DELETE FROM $nonempty_tbl"
688 . ( $pageid ? " WHERE id=$pageid" : ""));
690 $dbh->query("INSERT INTO $nonempty_tbl (id)"
691 . " SELECT $recent_tbl.id"
692 . " FROM $recent_tbl, $version_tbl"
693 . " WHERE $recent_tbl.id=$version_tbl.id"
694 . " AND version=latestversion"
696 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
703 * Grab a write lock on the tables in the SQL database.
705 * Calls can be nested. The tables won't be unlocked until
706 * _unlock_database() is called as many times as _lock_database().
710 function lock($tables = false, $write_lock = true) {
711 if ($this->_lock_count++ == 0)
712 $this->_lock_tables($write_lock);
716 * Actually lock the required tables.
718 function _lock_tables($write_lock) {
719 trigger_error("virtual", E_USER_ERROR);
723 * Release a write lock on the tables in the SQL database.
727 * @param $force boolean Unlock even if not every call to lock() has been matched
728 * by a call to unlock().
730 * @see _lock_database
732 function unlock($tables = false, $force = false) {
733 if ($this->_lock_count == 0)
735 if (--$this->_lock_count <= 0 || $force) {
736 $this->_unlock_tables();
737 $this->_lock_count = 0;
742 * Actually unlock the required tables.
744 function _unlock_tables($write_lock) {
745 trigger_error("virtual", E_USER_ERROR);
752 function _serialize($data) {
755 assert(is_array($data));
756 return serialize($data);
762 function _unserialize($data) {
763 return empty($data) ? array() : unserialize($data);
767 * Callback for PEAR (DB) errors.
771 * @param A PEAR_error object.
773 function _pear_error_callback($error) {
774 if ($this->_is_false_error($error))
777 $this->_dbh->setErrorHandling(PEAR_ERROR_PRINT); // prevent recursive loops.
779 trigger_error($this->_pear_error_message($error), E_USER_ERROR);
783 * Detect false errors messages from PEAR DB.
785 * The version of PEAR DB which ships with PHP 4.0.6 has a bug in that
786 * it doesn't recognize "LOCK" and "UNLOCK" as SQL commands which don't
787 * return any data. (So when a "LOCK" command doesn't return any data,
788 * DB reports it as an error, when in fact, it's not.)
791 * @return bool True iff error is not really an error.
793 function _is_false_error($error) {
794 if ($error->getCode() != DB_ERROR)
797 $query = $this->_dbh->last_query;
799 if (! preg_match('/^\s*"?(INSERT|UPDATE|DELETE|REPLACE|CREATE'
800 . '|DROP|ALTER|GRANT|REVOKE|LOCK|UNLOCK)\s/', $query)) {
801 // Last query was not of the sort which doesn't return any data.
802 //" <--kludge for brain-dead syntax coloring
806 if (! in_array('ismanip', get_class_methods('DB'))) {
807 // Pear shipped with PHP 4.0.4pl1 (and before, presumably)
808 // does not have the DB::isManip method.
812 if (DB::isManip($query)) {
813 // If Pear thinks it's an isManip then it wouldn't have thrown
814 // the error we're testing for....
821 function _pear_error_message($error) {
822 $class = get_class($this);
823 $message = "$class: fatal database error\n"
824 . "\t" . $error->getMessage() . "\n"
825 . "\t(" . $error->getDebugInfo() . ")\n";
827 // Prevent password from being exposed during a connection error
828 $safe_dsn = preg_replace('| ( :// .*? ) : .* (?=@) |xs',
829 '\\1:XXXXXXXX', $this->_dsn);
830 return str_replace($this->_dsn, $safe_dsn, $message);
834 * Filter PHP errors notices from PEAR DB code.
836 * The PEAR DB code which ships with PHP 4.0.6 produces spurious
837 * errors and notices. This is an error callback (for use with
838 * ErrorManager which will filter out those spurious messages.)
839 * @see _is_false_error, ErrorManager
842 function _pear_notice_filter($err) {
843 return ( $err->isNotice()
844 && preg_match('|DB[/\\\\]common.php$|', $err->errfile)
845 && $err->errline == 126
846 && preg_match('/Undefined offset: +0\b/', $err->errstr) );
851 * This class is a generic iterator.
853 * WikiDB_backend_PearDB_iter only iterates over things that have
854 * 'pagename', 'pagedata', etc. etc.
856 * Probably WikiDB_backend_PearDB_iter and this class should be merged
857 * (most of the code is cut-and-paste :-( ), but I am trying to make
858 * changes that could be merged easily.
860 * @author: Dan Frankowski
862 class WikiDB_backend_PearDB_generic_iter
863 extends WikiDB_backend_iterator
865 function WikiDB_backend_PearDB_generic_iter(&$backend, &$query_result) {
866 if (DB::isError($query_result)) {
867 // This shouldn't happen, I thought.
868 $backend->_pear_error_callback($query_result);
871 $this->_backend = &$backend;
872 $this->_result = $query_result;
878 return $this->_result->numRows();
882 $backend = &$this->_backend;
886 $record = $this->_result->fetchRow(DB_FETCHMODE_ASSOC);
896 if ($this->_result) {
897 $this->_result->free();
898 $this->_result = false;
903 class WikiDB_backend_PearDB_iter
904 extends WikiDB_backend_PearDB_generic_iter
908 $backend = &$this->_backend;
912 $record = $this->_result->fetchRow(DB_FETCHMODE_ASSOC);
918 $pagedata = $backend->_extract_page_data($record);
919 $rec = array('pagename' => $record['pagename'],
920 'pagedata' => $pagedata);
922 if (!empty($record['version'])) {
923 $rec['versiondata'] = $backend->_extract_version_data($record);
924 $rec['version'] = $record['version'];
930 // $Log: not supported by cvs2svn $
931 // Revision 1.48 2004/04/26 20:44:35 rurban
932 // locking table specific for better databases
934 // Revision 1.47 2004/04/20 00:06:04 rurban
935 // themable paging support
937 // Revision 1.46 2004/04/19 21:51:41 rurban
938 // php5 compatibility: it works!
940 // Revision 1.45 2004/04/16 14:19:39 rurban
941 // updated ADODB notes
944 // (c-file-style: "gnu")
949 // c-hanging-comment-ender-p: nil
950 // indent-tabs-mode: nil