2 rcs_id('$Id: ADODB.php,v 1.68 2004-12-22 18:33:25 rurban Exp $');
5 Copyright 2002,2004 $ThePhpWikiProgrammingTeam
7 This file is part of PhpWiki.
9 PhpWiki is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 PhpWiki is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with PhpWiki; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 * Based on PearDB.php.
27 * @author: Lawrence Akka, Reini Urban
29 * Now (phpwiki-1.3.10) with adodb-4.22, by Reini Urban:
30 * 1) Extended to use all available database backends, not only mysql.
31 * 2) It uses the ultra-fast binary adodb extension if loaded.
32 * 3) We use FETCH_NUM instead of FETCH_ASSOC (faster and more generic)
33 * 4) To support generic iterators which return ASSOC fields, and to support queries with
34 * variable columns, some trickery was needed to use recordset specific fetchMode.
35 * The first Execute uses the global fetchMode (ASSOC), then it's resetted back to NUM
36 * and the recordset fetchmode is set to ASSOC.
37 * 5) Transaction support, and locking as fallback.
38 * 6) 2004-12-10 added extra page.cached_html
40 * phpwiki-1.3.11, by Philippe Vanhaesendonck
41 * - pass column list to iterators so we can FETCH_NUM in all cases
43 * ADODB basic differences to PearDB: It pre-fetches the first row into fields,
44 * is dirtier in style, layout and more low-level ("worse is better").
45 * It has less needed basic features (modifyQuery, locks, ...), but some more
46 * unneeded features included: paging, monitoring and sessions, and much more drivers.
47 * No locking (which PearDB supports in some backends), and sequences are very
48 * bad compared to PearDB.
50 * Old Comments, by Lawrence Akka:
51 * 1) ADODB's GetRow() is slightly different from that in PEAR. It does not
52 * accept a fetchmode parameter
53 * That doesn't matter too much here, since we only ever use FETCHMODE_ASSOC
54 * 2) No need for ''s around strings in sprintf arguments - qstr puts them
56 * 3) ADODB has a version of GetOne, but it is difficult to use it when
57 * FETCH_ASSOC is in effect.
58 * Instead, use $rs = Execute($query); $value = $rs->fields["$colname"]
59 * 4) No error handling yet - could use ADOConnection->raiseErrorFn
60 * 5) It used to be faster then PEAR/DB at the beginning of 2002.
61 * Now at August 2002 PEAR/DB with our own page cache added,
62 * performance is comparable.
65 require_once('lib/WikiDB/backend.php');
66 // Error handling - calls trigger_error. NB - does not close the connection. Does it need to?
67 include_once('lib/WikiDB/adodb/adodb-errorhandler.inc.php');
68 // include the main adodb file
69 require_once('lib/WikiDB/adodb/adodb.inc.php');
71 class WikiDB_backend_ADODB
72 extends WikiDB_backend
75 function WikiDB_backend_ADODB ($dbparams) {
76 $parsed = parseDSN($dbparams['dsn']);
77 $this->_dbparams = $dbparams;
78 $this->_dbh = &ADONewConnection($parsed['phptype']);
79 if (DEBUG & _DEBUG_SQL) {
80 $this->_dbh->debug = true;
81 $GLOBALS['ADODB_OUTP'] = '_sql_debuglog';
83 $this->_dsn = $parsed;
84 if (!empty($parsed['persistent']))
85 $conn = $this->_dbh->PConnect($parsed['hostspec'],$parsed['username'],
86 $parsed['password'], $parsed['database']);
88 $conn = $this->_dbh->Connect($parsed['hostspec'],$parsed['username'],
89 $parsed['password'], $parsed['database']);
91 // Since 1.3.10 we use the faster ADODB_FETCH_NUM,
92 // with some ASSOC based recordsets.
93 $GLOBALS['ADODB_FETCH_MODE'] = ADODB_FETCH_NUM;
94 $this->_dbh->SetFetchMode(ADODB_FETCH_NUM);
95 $GLOBALS['ADODB_COUNTRECS'] = false;
97 $prefix = isset($dbparams['prefix']) ? $dbparams['prefix'] : '';
99 = array('page_tbl' => $prefix . 'page',
100 'version_tbl' => $prefix . 'version',
101 'link_tbl' => $prefix . 'link',
102 'recent_tbl' => $prefix . 'recent',
103 'nonempty_tbl' => $prefix . 'nonempty');
104 $page_tbl = $this->_table_names['page_tbl'];
105 $version_tbl = $this->_table_names['version_tbl'];
106 $this->page_tbl_fields = "$page_tbl.id AS id, $page_tbl.pagename AS pagename, "
107 . "$page_tbl.hits hits";
108 $this->page_tbl_field_list = array('id', 'pagename', 'hits');
109 $this->version_tbl_fields = "$version_tbl.version AS version, "
110 . "$version_tbl.mtime AS mtime, "
111 . "$version_tbl.minor_edit AS minor_edit, $version_tbl.content AS content, "
112 . "$version_tbl.versiondata AS versiondata";
113 $this->version_tbl_field_list = array('version', 'mtime', 'minor_edit', 'content',
117 = array('maxmajor' => "MAX(CASE WHEN minor_edit=0 THEN version END)",
118 'maxminor' => "MAX(CASE WHEN minor_edit<>0 THEN version END)",
119 'maxversion' => "MAX(version)",
120 'notempty' => "<>''",
121 'iscontent' => "$version_tbl.content<>''");
122 $this->_lock_count = 0;
126 * Close database connection.
131 if ($this->_lock_count) {
132 trigger_error("WARNING: database still locked " .
133 '(lock_count = $this->_lock_count)' . "\n<br />",
136 // $this->_dbh->setErrorHandling(PEAR_ERROR_PRINT); // prevent recursive loops.
137 $this->unlock(false,'force');
139 $this->_dbh->close();
144 * Fast test for wikipage.
146 function is_wiki_page($pagename) {
148 extract($this->_table_names);
149 $row = $dbh->GetRow(sprintf("SELECT $page_tbl.id AS id"
150 . " FROM $nonempty_tbl, $page_tbl"
151 . " WHERE $nonempty_tbl.id=$page_tbl.id"
152 . " AND pagename=%s",
153 $dbh->qstr($pagename)));
154 return $row ? $row[0] : false;
157 function get_all_pagenames() {
159 extract($this->_table_names);
160 $result = $dbh->Execute("SELECT pagename"
161 . " FROM $nonempty_tbl, $page_tbl"
162 . " WHERE $nonempty_tbl.id=$page_tbl.id");
163 return $result->GetArray();
166 function numPages($filter=false, $exclude='') {
168 extract($this->_table_names);
169 $result = $dbh->getRow("SELECT count(*)"
170 . " FROM $nonempty_tbl, $page_tbl"
171 . " WHERE $nonempty_tbl.id=$page_tbl.id");
175 function increaseHitCount($pagename) {
177 // Hits is the only thing we can update in a fast manner.
178 // Note that this will fail silently if the page does not
179 // have a record in the page table. Since it's just the
180 // hit count, who cares?
181 $dbh->Execute(sprintf("UPDATE %s SET hits=hits+1 WHERE pagename=%s LIMIT 1",
182 $this->_table_names['page_tbl'],
183 $dbh->qstr($pagename)));
188 * Read page information from database.
190 function get_pagedata($pagename) {
192 $row = $dbh->GetRow(sprintf("SELECT id,pagename,hits,pagedata FROM %s WHERE pagename=%s",
193 $this->_table_names['page_tbl'],
194 $dbh->qstr($pagename)));
195 return $row ? $this->_extract_page_data($row[3], $row[2]) : false;
198 function _extract_page_data($data, $hits) {
199 if (empty($data)) return array();
200 else return array_merge(array('hits' => $hits), $this->_unserialize($data));
203 function update_pagedata($pagename, $newdata) {
205 $page_tbl = $this->_table_names['page_tbl'];
207 // Hits is the only thing we can update in a fast manner.
208 if (count($newdata) == 1 && isset($newdata['hits'])) {
209 // Note that this will fail silently if the page does not
210 // have a record in the page table. Since it's just the
211 // hit count, who cares?
212 $dbh->Execute(sprintf("UPDATE $page_tbl SET hits=%d WHERE pagename=%s",
213 $newdata['hits'], $dbh->qstr($pagename)));
216 $where = sprintf("pagename=%s", $dbh->qstr($pagename));
218 $dbh->RowLock($page_tbl,$where);
220 $data = $this->get_pagedata($pagename);
223 $this->_get_pageid($pagename, true); // Creates page record
226 $hits = (empty($data['hits'])) ? 0 : (int)$data['hits'];
227 unset($data['hits']);
229 foreach ($newdata as $key => $val) {
232 else if (empty($val))
237 if ($dbh->Execute("UPDATE $page_tbl"
238 . " SET hits=?, pagedata=?"
239 . " WHERE pagename=?",
240 array($hits, $this->_serialize($data),$pagename))) {
241 $dbh->CommitTrans( );
244 $dbh->RollbackTrans( );
249 function get_cached_html($pagename) {
251 $page_tbl = $this->_table_names['page_tbl'];
252 $row = $dbh->GetRow(sprintf("SELECT cached_html FROM $page_tbl WHERE pagename=%s",
253 $dbh->qstr($pagename)));
254 return $row ? $row[0] : false;
257 function set_cached_html($pagename, $data) {
259 $page_tbl = $this->_table_names['page_tbl'];
260 $rs = $dbh->Execute("UPDATE $page_tbl"
261 . " SET cached_html=?"
262 . " WHERE pagename=?",
263 array($data, $pagename));
266 function _get_pageid($pagename, $create_if_missing = false) {
270 $cache =& $request->_dbi->_cache->_id_cache;
271 if (isset($cache[$pagename])) {
272 if ($cache[$pagename] or !$create_if_missing) {
273 return $cache[$pagename];
278 $page_tbl = $this->_table_names['page_tbl'];
279 $query = sprintf("SELECT id FROM $page_tbl WHERE pagename=%s",
280 $dbh->qstr($pagename));
281 if (! $create_if_missing ) {
282 $row = $dbh->GetRow($query);
283 return $row ? $row[0] : false;
285 $row = $dbh->GetRow($query);
287 //mysql, mysqli or mysqlt
288 if (substr($dbh->databaseType,0,5) == 'mysql') {
289 // have auto-incrementing, atomic version
290 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
292 . " VALUES(NULL,%s)",
293 $dbh->qstr($pagename)));
294 $id = $dbh->_insertid();
296 //$id = $dbh->GenID($page_tbl . 'seq');
297 // Better generic version than with adodob::genID
298 //TODO: Does the DBM has subselects? Then we can do it with select max(id)+1
299 $this->lock(array('page'));
301 $dbh->CommitLock($page_tbl);
302 $row = $dbh->GetRow("SELECT MAX(id) FROM $page_tbl");
304 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
305 . " (id,pagename,hits)"
306 . " VALUES (%d,%s,0)",
307 $id, $dbh->qstr($pagename)));
308 if ($rs) $dbh->CommitTrans( );
309 else $dbh->RollbackTrans( );
310 $this->unlock(array('page'));
319 function get_latest_version($pagename) {
321 extract($this->_table_names);
322 $row = $dbh->GetRow(sprintf("SELECT latestversion"
323 . " FROM $page_tbl, $recent_tbl"
324 . " WHERE $page_tbl.id=$recent_tbl.id"
325 . " AND pagename=%s",
326 $dbh->qstr($pagename)));
327 return $row ? (int)$row[0] : false;
330 function get_previous_version($pagename, $version) {
332 extract($this->_table_names);
333 // Use SELECTLIMIT for maximum portability
334 $rs = $dbh->SelectLimit(sprintf("SELECT version"
335 . " FROM $version_tbl, $page_tbl"
336 . " WHERE $version_tbl.id=$page_tbl.id"
338 . " AND version < %d"
339 . " ORDER BY version DESC"
340 ,$dbh->qstr($pagename),
343 return $rs->fields ? (int)$rs->fields[0] : false;
349 * @param $version int Which version to get.
351 * @return hash The version data, or false if specified version does not
354 function get_versiondata($pagename, $version, $want_content = false) {
356 extract($this->_table_names);
357 extract($this->_expressions);
359 assert(is_string($pagename) and $pagename != '');
360 assert($version > 0);
362 // FIXME: optimization: sometimes don't get page data?
364 $fields = $this->page_tbl_fields . ", $page_tbl.pagedata AS pagedata"
365 . ', ' . $this->version_tbl_fields;
367 $fields = $this->page_tbl_fields . ", '' AS pagedata"
368 . ", $version_tbl.version AS version, $version_tbl.mtime AS mtime, "
369 . "$version_tbl.minor_edit AS minor_edit, $iscontent AS have_content, "
370 . "$version_tbl.versiondata as versiondata";
372 $row = $dbh->GetRow(sprintf("SELECT $fields"
373 . " FROM $page_tbl, $version_tbl"
374 . " WHERE $page_tbl.id=$version_tbl.id"
377 $dbh->qstr($pagename), $version));
378 return $row ? $this->_extract_version_data_num($row, $want_content) : false;
381 function _extract_version_data_num($row, $want_content) {
386 //$pagename &= $row[1];
387 $data = empty($row[8]) ? array() : $this->_unserialize($row[8]);
388 $data['mtime'] = $row[5];
389 $data['is_minor_edit'] = !empty($row[6]);
391 $data['%content'] = $row[7];
393 $data['%content'] = !empty($row[7]);
395 if (!empty($row[3])) {
396 $data['%pagedata'] = $this->_extract_page_data($row[3], $row[2]);
401 function _extract_version_data_assoc($row) {
406 $data = empty($versiondata) ? array() : $this->_unserialize($versiondata);
407 $data['mtime'] = $mtime;
408 $data['is_minor_edit'] = !empty($minor_edit);
410 $data['%content'] = $content;
411 elseif ($have_content)
412 $data['%content'] = true;
414 $data['%content'] = '';
415 if (!empty($pagedata)) {
416 $data['%pagedata'] = $this->_extract_page_data($pagedata, $hits);
422 * Create a new revision of a page.
424 function set_versiondata($pagename, $version, $data) {
426 $version_tbl = $this->_table_names['version_tbl'];
428 $minor_edit = (int) !empty($data['is_minor_edit']);
429 unset($data['is_minor_edit']);
431 $mtime = (int)$data['mtime'];
432 unset($data['mtime']);
433 assert(!empty($mtime));
435 @$content = (string) $data['%content'];
436 unset($data['%content']);
437 unset($data['%pagedata']);
439 $this->lock(array('page','recent','version','nonempty'));
441 $dbh->CommitLock($version_tbl);
442 $id = $this->_get_pageid($pagename, true);
443 $backend_type = $this->backendType();
444 // optimize: mysql can do this with one REPLACE INTO.
445 if (substr($backend_type,0,5) == 'mysql') {
446 $rs = $dbh->Execute(sprintf("REPLACE INTO $version_tbl"
447 . " (id,version,mtime,minor_edit,content,versiondata)"
448 . " VALUES(%d,%d,%d,%d,%s,%s)",
449 $id, $version, $mtime, $minor_edit,
450 $dbh->qstr($content),
451 $dbh->qstr($this->_serialize($data))));
453 $dbh->Execute(sprintf("DELETE FROM $version_tbl"
454 . " WHERE id=%d AND version=%d",
456 $rs = $dbh->Execute("INSERT INTO $version_tbl"
457 . " (id,version,mtime,minor_edit,content,versiondata)"
458 . " VALUES(?,?,?,?,?,?)",
459 array($id, $version, $mtime, $minor_edit,
460 $content, $this->_serialize($data)));
462 $this->_update_recent_table($id);
463 $this->_update_nonempty_table($id);
464 if ($rs) $dbh->CommitTrans( );
465 else $dbh->RollbackTrans( );
466 $this->unlock(array('page','recent','version','nonempty'));
470 * Delete an old revision of a page.
472 function delete_versiondata($pagename, $version) {
474 extract($this->_table_names);
476 $this->lock(array('version'));
477 if ( ($id = $this->_get_pageid($pagename)) ) {
478 $dbh->Execute("DELETE FROM $version_tbl"
479 . " WHERE id=$id AND version=$version");
480 $this->_update_recent_table($id);
481 // This shouldn't be needed (as long as the latestversion
482 // never gets deleted.) But, let's be safe.
483 $this->_update_nonempty_table($id);
485 $this->unlock(array('version'));
489 * Delete page from the database with backup possibility.
490 * i.e save_page('') and DELETE nonempty id
492 * deletePage increments latestversion in recent to a non-existent version,
493 * and removes the nonempty row,
494 * so that get_latest_version returns id+1 and get_previous_version returns prev id
495 * and page->exists returns false.
497 function delete_page($pagename) {
499 extract($this->_table_names);
502 $dbh->CommitLock($recent_tbl);
503 if (($id = $this->_get_pageid($pagename, false)) === false) {
504 $dbh->RollbackTrans( );
508 $user =& $GLOBALS['request']->_user;
509 $meta = array('author' => $user->getId(),
510 'author_id' => $user->getAuthenticatedId(),
512 $this->lock(array('version','recent','nonempty','page','link'));
513 $version = $this->get_latest_version($pagename);
514 if ($dbh->Execute("UPDATE $recent_tbl SET latestversion=latestversion+1,latestmajor=latestversion+1,latestminor=NULL WHERE id=$id")
515 and $dbh->Execute("INSERT INTO $version_tbl"
516 . " (id,version,mtime,minor_edit,content,versiondata)"
517 . " VALUES(?,?,?,?,?,?)",
518 array($id, $version+1, $mtime, 0,
519 '', $this->_serialize($meta)))
520 and $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id")
521 and $this->set_links($pagename, false)
522 // need to keep perms and LOCKED, otherwise you can reset the perm
523 // by action=remove and re-create it with default perms
524 //and $dbh->Execute("UPDATE $page_tbl SET pagedata='' WHERE id=$id") // keep hits but delete meta-data
527 $this->unlock(array('version','recent','nonempty','page','link'));
528 $dbh->CommitTrans( );
531 $this->unlock(array('version','recent','nonempty','page','link'));
532 $dbh->RollbackTrans( );
537 function purge_page($pagename) {
539 extract($this->_table_names);
541 $this->lock(array('version','recent','nonempty','page','link'));
542 if ( ($id = $this->_get_pageid($pagename, false)) ) {
543 $dbh->Execute("DELETE FROM $version_tbl WHERE id=$id");
544 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id");
545 $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id");
546 $this->set_links($pagename, false);
547 $row = $dbh->GetRow("SELECT COUNT(*) FROM $link_tbl WHERE linkto=$id");
548 if ($row and $row[0]) {
549 // We're still in the link table (dangling link) so we can't delete this
551 $dbh->Execute("UPDATE $page_tbl SET hits=0, pagedata='' WHERE id=$id");
555 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id");
559 $result = -1; // already purged or not existing
561 $this->unlock(array('version','recent','nonempty','page','link'));
566 // The only thing we might be interested in updating which we can
567 // do fast in the flags (minor_edit). I think the default
568 // update_versiondata will work fine...
569 //function update_versiondata($pagename, $version, $data) {
572 function set_links($pagename, $links) {
573 // Update link table.
574 // FIXME: optimize: mysql can do this all in one big INSERT/REPLACE.
577 extract($this->_table_names);
579 $this->lock(array('link'));
580 $pageid = $this->_get_pageid($pagename, true);
583 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
584 foreach ($links as $link) {
585 if (isset($linkseen[$link]))
587 $linkseen[$link] = true;
588 $linkid = $this->_get_pageid($link, true);
590 $dbh->Execute("INSERT INTO $link_tbl (linkfrom, linkto)"
591 . " VALUES ($pageid, $linkid)");
594 // purge page table: delete all non-referenced pages
595 // for all previously linked pages...
596 foreach ($dbh->getRow("SELECT $link_tbl.linkto as id FROM $link_tbl WHERE linkfrom=$pageid") as $id) {
597 // ...check if the page is empty and has no version
598 if ($dbh->getRow("SELECT $page_tbl.id FROM $page_tbl LEFT JOIN $nonempty_tbl USING (id) "
599 ." LEFT JOIN $version_tbl USING (id)"
600 ." WHERE ISNULL($nonempty_tbl.id) AND ISNULL($version_tbl.id) AND $page_tbl.id=$id")) {
601 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id"); // this purges the link
602 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id"); // may fail
605 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
607 $this->unlock(array('link'));
612 * Find pages which link to or are linked from a page.
614 * Optimization: save request->_dbi->_iwpcache[] to avoid further iswikipage checks
615 * (linkExistingWikiWord or linkUnknownWikiWord)
616 * This is called on every page header GleanDescription, so we can store all the existing links.
618 function get_links($pagename, $reversed=true, $include_empty=false,
619 $sortby=false, $limit=false, $exclude='') {
621 extract($this->_table_names);
624 list($have,$want) = array('linkee', 'linker');
626 list($have,$want) = array('linker', 'linkee');
627 $orderby = $this->sortby($sortby, 'db', array('pagename'));
628 if ($orderby) $orderby = ' ORDER BY $want.' . $orderby;
629 if ($exclude) // array of pagenames
630 $exclude = " AND $want.pagename NOT IN ".$this->_sql_set($exclude);
634 $qpagename = $dbh->qstr($pagename);
635 // removed ref to FETCH_MODE in next line
636 $result = $dbh->Execute("SELECT $want.id AS id, $want.pagename AS pagename,"
637 . " $want.hits AS hits"
638 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee"
639 . (!$include_empty ? ", $nonempty_tbl" : '')
640 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
641 . " AND $have.pagename=$qpagename"
642 . (!$include_empty ? " AND $nonempty_tbl.id=$want.id" : "")
643 //. " GROUP BY $want.id"
646 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
650 * Find if a page links to another page
652 function exists_link($pagename, $link, $reversed=false) {
654 extract($this->_table_names);
657 list($have, $want) = array('linkee', 'linker');
659 list($have, $want) = array('linker', 'linkee');
660 $qpagename = $dbh->qstr($pagename);
661 $qlink = $dbh->qstr($link);
662 $row = $dbh->GetRow("SELECT IF($want.pagename,1,0)"
663 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee, $nonempty_tbl"
664 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
665 . " AND $have.pagename=$qpagename"
666 . " AND $want.pagename=$qlink"
671 function get_all_pages($include_empty=false, $sortby=false, $limit=false, $exclude='') {
673 extract($this->_table_names);
674 $orderby = $this->sortby($sortby, 'db');
675 if ($orderby) $orderby = ' ORDER BY ' . $orderby;
676 if ($exclude) // array of pagenames
677 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
681 //$dbh->SetFetchMode(ADODB_FETCH_ASSOC);
682 if (strstr($orderby, 'mtime ')) { // was ' mtime'
683 if ($include_empty) {
685 . $this->page_tbl_fields
686 ." FROM $page_tbl, $recent_tbl, $version_tbl"
687 . " WHERE $page_tbl.id=$recent_tbl.id"
688 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
694 . $this->page_tbl_fields
695 . " FROM $nonempty_tbl, $page_tbl, $recent_tbl, $version_tbl"
696 . " WHERE $nonempty_tbl.id=$page_tbl.id"
697 . " AND $page_tbl.id=$recent_tbl.id"
698 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
703 if ($include_empty) {
705 . $this->page_tbl_fields
707 . ($exclude ? " WHERE $exclude" : '')
711 . $this->page_tbl_fields
712 . " FROM $nonempty_tbl, $page_tbl"
713 . " WHERE $nonempty_tbl.id=$page_tbl.id"
719 // extract from,count from limit
720 list($offset,$count) = $this->limit($limit);
721 $result = $dbh->SelectLimit($sql, $count, $offset);
723 $result = $dbh->Execute($sql);
725 //$dbh->SetFetchMode(ADODB_FETCH_NUM);
726 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
732 function text_search($search, $fullsearch=false) {
734 extract($this->_table_names);
736 $table = "$nonempty_tbl, $page_tbl";
737 $join_clause = "$nonempty_tbl.id=$page_tbl.id";
738 $fields = $this->page_tbl_fields;
739 $field_list = $this->page_tbl_field_list;
740 $searchobj = new WikiDB_backend_ADODB_search($search, $dbh);
743 $table .= ", $recent_tbl";
744 $join_clause .= " AND $page_tbl.id=$recent_tbl.id";
746 $table .= ", $version_tbl";
747 $join_clause .= " AND $page_tbl.id=$version_tbl.id AND latestversion=version";
749 $fields .= ",$page_tbl.pagedata as pagedata," . $this->version_tbl_fields;
750 $field_list = array_merge($field_list, array('pagedata'), $this->version_tbl_field_list);
751 $callback = new WikiMethodCb($searchobj, "_fulltext_match_clause");
753 $callback = new WikiMethodCb($searchobj, "_pagename_match_clause");
756 $search_clause = $search->makeSqlClauseObj($callback);
757 $result = $dbh->Execute("SELECT $fields FROM $table"
758 . " WHERE $join_clause"
759 . " AND ($search_clause)"
760 . " ORDER BY pagename");
761 return new WikiDB_backend_ADODB_iter($this, $result, $field_list);
764 function _sql_match_clause($word) {
765 //not sure if we need this. ADODB may do it for us
766 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word);
768 // (we need it for at least % and _ --- they're the wildcard characters
769 // for the LIKE operator, and we need to quote them if we're searching
770 // for literal '%'s or '_'s. --- I'm not sure about \, but it seems to
772 $word = $this->_dbh->qstr("%".strtolower($word)."%");
773 $page_tbl = $this->_table_names['page_tbl'];
774 return "LOWER($page_tbl.pagename) LIKE $word";
776 function _fullsearch_sql_match_clause($word) {
777 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word); //not sure if we need this
779 $word = $this->_dbh->qstr("%".strtolower($word)."%");
780 $page_tbl = $this->_table_names['page_tbl'];
781 return "LOWER($page_tbl.pagename) LIKE $word OR content LIKE $word";
786 * TODO: efficiently handle wildcards exclusion: exclude=Php* => 'Php%',
787 * not sets. See above, but the above methods find too much.
788 * This is only for already resolved wildcards:
789 * " WHERE $page_tbl.pagename NOT IN ".$this->_sql_set(array('page1','page2'));
791 function _sql_set(&$pagenames) {
793 foreach ($pagenames as $p) {
794 $s .= ($this->_dbh->qstr($p).",");
796 return substr($s,0,-1).")";
800 * Find highest or lowest hit counts.
802 function most_popular($limit=0, $sortby='-hits') {
804 extract($this->_table_names);
811 $where = " AND hits > 0";
813 if ($sortby != '-hits') {
814 if ($order = $this->sortby($sortby, 'db')) $orderby = " ORDER BY " . $order;
817 $orderby = " ORDER BY hits $order";
818 $limit = $limit ? $limit : -1;
820 $result = $dbh->SelectLimit("SELECT "
821 . $this->page_tbl_fields
822 . " FROM $nonempty_tbl, $page_tbl"
823 . " WHERE $nonempty_tbl.id=$page_tbl.id"
826 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
830 * Find recent changes.
832 function most_recent($params) {
835 $include_minor_revisions = false;
836 $exclude_major_revisions = false;
837 $include_all_revisions = false;
841 extract($this->_table_names);
845 $pick[] = "mtime >= $since";
847 if ($include_all_revisions) {
848 // Include all revisions of each page.
849 $table = "$page_tbl, $version_tbl";
850 $join_clause = "$page_tbl.id=$version_tbl.id";
852 if ($exclude_major_revisions) {
853 // Include only minor revisions
854 $pick[] = "minor_edit <> 0";
856 elseif (!$include_minor_revisions) {
857 // Include only major revisions
858 $pick[] = "minor_edit = 0";
862 $table = "$page_tbl, $recent_tbl";
863 $join_clause = "$page_tbl.id=$recent_tbl.id";
864 $table .= ", $version_tbl";
865 $join_clause .= " AND $version_tbl.id=$page_tbl.id";
867 if ($exclude_major_revisions) {
868 // Include only most recent minor revision
869 $pick[] = 'version=latestminor';
871 elseif (!$include_minor_revisions) {
872 // Include only most recent major revision
873 $pick[] = 'version=latestmajor';
876 // Include only the latest revision (whether major or minor).
877 $pick[] ='version=latestversion';
885 $limit = $limit ? $limit : -1;
886 $where_clause = $join_clause;
888 $where_clause .= " AND " . join(" AND ", $pick);
890 // FIXME: use SQL_BUFFER_RESULT for mysql?
891 // Use SELECTLIMIT for portability
892 $result = $dbh->SelectLimit("SELECT "
893 . $this->page_tbl_fields . ", " . $this->version_tbl_fields
895 . " WHERE $where_clause"
896 . " ORDER BY mtime $order",
898 //$result->fields['version'] = $result->fields[6];
899 return new WikiDB_backend_ADODB_iter($this, $result,
900 array_merge($this->page_tbl_field_list, $this->version_tbl_field_list));
904 * Find referenced empty pages.
906 function wanted_pages($exclude_from='', $exclude='', $sortby=false, $limit=false) {
908 extract($this->_table_names);
909 if ($orderby = $this->sortby($sortby, 'db', array('pagename','wantedfrom')))
910 $orderby = 'ORDER BY ' . $orderby;
912 if ($exclude_from) // array of pagenames
913 $exclude_from = " AND linked.pagename NOT IN ".$this->_sql_set($exclude_from);
914 if ($exclude) // array of pagenames
915 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
917 $limit = $limit ? $limit : -1;
919 all empty pages, independent of linkstatus:
920 select pagename as empty from page left join nonempty using(id) where isnull(nonempty.id);
921 only all empty pages, which have a linkto:
922 select page.pagename, linked.pagename as wantedfrom from link, page as linked
923 left join page on(link.linkto=page.id) left join nonempty on(link.linkto=nonempty.id)
924 where isnull(nonempty.id) and linked.id=link.linkfrom;
926 $sql = "SELECT $page_tbl.pagename,linked.pagename as wantedfrom"
927 . " FROM $link_tbl,$page_tbl as linked "
928 . " LEFT JOIN $page_tbl ON($link_tbl.linkto=$page_tbl.id)"
929 . " LEFT JOIN $nonempty_tbl ON($link_tbl.linkto=$nonempty_tbl.id)"
930 . " WHERE ISNULL($nonempty_tbl.id) AND linked.id=$link_tbl.linkfrom"
934 $result = $dbh->SelectLimit($sql, $limit);
935 return new WikiDB_backend_ADODB_iter($this, $result, array('pagename','wantedfrom'));
939 * Rename page in the database.
941 function rename_page($pagename, $to) {
943 extract($this->_table_names);
945 $this->lock(array('page'));
946 if ( ($id = $this->_get_pageid($pagename, false)) ) {
947 if ($new = $this->_get_pageid($to, false)) {
949 //this page does not exist (already verified before), but exists in the page table.
950 //so we delete this page.
951 $dbh->query(sprintf("DELETE FROM $page_tbl WHERE id=$id",
954 $dbh->query(sprintf("UPDATE $page_tbl SET pagename=%s WHERE id=$id",
957 $this->unlock(array('page'));
961 function _update_recent_table($pageid = false) {
963 extract($this->_table_names);
964 extract($this->_expressions);
966 $pageid = (int)$pageid;
968 // optimize: mysql can do this with one REPLACE INTO.
969 $backend_type = $this->backendType();
970 if (substr($backend_type,0,5) == 'mysql') {
971 $dbh->Execute("REPLACE INTO $recent_tbl"
972 . " (id, latestversion, latestmajor, latestminor)"
973 . " SELECT id, $maxversion, $maxmajor, $maxminor"
974 . " FROM $version_tbl"
975 . ( $pageid ? " WHERE id=$pageid" : "")
978 $this->lock(array('recent'));
979 $dbh->Execute("DELETE FROM $recent_tbl"
980 . ( $pageid ? " WHERE id=$pageid" : ""));
981 $dbh->Execute( "INSERT INTO $recent_tbl"
982 . " (id, latestversion, latestmajor, latestminor)"
983 . " SELECT id, $maxversion, $maxmajor, $maxminor"
984 . " FROM $version_tbl"
985 . ( $pageid ? " WHERE id=$pageid" : "")
987 $this->unlock(array('recent'));
991 function _update_nonempty_table($pageid = false) {
993 extract($this->_table_names);
994 extract($this->_expressions);
996 $pageid = (int)$pageid;
998 extract($this->_expressions);
999 $this->lock(array('nonempty'));
1000 $dbh->Execute("DELETE FROM $nonempty_tbl"
1001 . ( $pageid ? " WHERE id=$pageid" : ""));
1002 $dbh->Execute("INSERT INTO $nonempty_tbl (id)"
1003 . " SELECT $recent_tbl.id"
1004 . " FROM $recent_tbl, $version_tbl"
1005 . " WHERE $recent_tbl.id=$version_tbl.id"
1006 . " AND version=latestversion"
1007 // We have some specifics here (Oracle)
1008 //. " AND content<>''"
1009 . " AND content $notempty"
1010 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
1011 $this->unlock(array('nonempty'));
1015 * Grab a write lock on the tables in the SQL database.
1017 * Calls can be nested. The tables won't be unlocked until
1018 * _unlock_database() is called as many times as _lock_database().
1022 function lock($tables, $write_lock = true) {
1023 $this->_dbh->StartTrans();
1024 if ($this->_lock_count++ == 0) {
1025 $this->_current_lock = $tables;
1026 $this->_lock_tables($tables, $write_lock);
1031 * Overridden by non-transaction safe backends.
1033 function _lock_tables($tables, $write_lock) {
1034 return $this->_current_lock;
1038 * Release a write lock on the tables in the SQL database.
1042 * @param $force boolean Unlock even if not every call to lock() has been matched
1043 * by a call to unlock().
1045 * @see _lock_database
1047 function unlock($tables = false, $force = false) {
1048 if ($this->_lock_count == 0) {
1049 $this->_dbh->CompleteTrans(! $force);
1050 $this->_current_lock = false;
1053 if (--$this->_lock_count <= 0 || $force) {
1054 $this->_unlock_tables($tables);
1055 $this->_current_lock = false;
1056 $this->_lock_count = 0;
1058 $this->_dbh->CompleteTrans(! $force);
1062 * overridden by non-transaction safe backends
1064 function _unlock_tables($tables, $write_lock) {
1071 function _serialize($data) {
1074 assert(is_array($data));
1075 return serialize($data);
1081 function _unserialize($data) {
1082 return empty($data) ? array() : unserialize($data);
1085 /* some variables and functions for DB backend abstraction (action=upgrade) */
1086 function database () {
1087 return $this->_dbh->database;
1089 function backendType() {
1090 return $this->_dbh->databaseType;
1092 function connection() {
1093 return $this->_dbh->_connectionID;
1096 function listOfTables() {
1097 return $this->_dbh->MetaTables();
1099 function listOfFields($database,$table) {
1100 $field_list = array();
1101 foreach ($this->_dbh->MetaColumns($table,false) as $field) {
1102 $field_list[] = $field->name;
1109 class WikiDB_backend_ADODB_generic_iter
1110 extends WikiDB_backend_iterator
1112 function WikiDB_backend_ADODB_generic_iter($backend, $query_result, $field_list = NULL) {
1113 $this->_backend = &$backend;
1114 $this->_result = $query_result;
1116 if (is_null($field_list)) {
1117 // No field list passed, retrieve from DB
1118 // WikiLens is using the iterator behind the scene
1119 $field_list = array();
1120 $fields = $query_result->FieldCount();
1121 for ($i = 0; $i < $fields ; $i++) {
1122 $field_info = $query_result->FetchField($i);
1123 array_push($field_list, $field_info->name);
1127 $this->_fields = $field_list;
1131 if (!$this->_result) {
1134 $count = $this->_result->numRows();
1135 //$this->_result->Close();
1140 $result = &$this->_result;
1141 $backend = &$this->_backend;
1142 if (!$result || $result->EOF) {
1147 // Convert array to hash
1149 $rec_num = $result->fields;
1150 foreach ($this->_fields as $field) {
1151 $rec_assoc[$field] = $rec_num[$i++];
1153 // check if the cache can be populated here?
1155 $result->MoveNext();
1160 if ($this->_result) {
1161 /* call mysql_free_result($this->_queryID) */
1162 $this->_result->Close();
1163 $this->_result = false;
1168 class WikiDB_backend_ADODB_iter
1169 extends WikiDB_backend_ADODB_generic_iter
1172 $result = &$this->_result;
1173 $backend = &$this->_backend;
1174 if (!$result || $result->EOF) {
1179 // Convert array to hash
1181 $rec_num = $result->fields;
1182 foreach ($this->_fields as $field) {
1183 $rec_assoc[$field] = $rec_num[$i++];
1186 $result->MoveNext();
1187 if (isset($rec_assoc['pagedata']))
1188 $rec_assoc['pagedata'] = $backend->_extract_page_data($rec_assoc['pagedata'], $rec_assoc['hits']);
1189 if (!empty($rec_assoc['version'])) {
1190 $rec_assoc['versiondata'] = $backend->_extract_version_data_assoc($rec_assoc);
1196 class WikiDB_backend_ADODB_search
1197 extends WikiDB_backend_search
1199 function WikiDB_backend_ADODB_search(&$search, &$dbh) {
1200 $this->_dbh =& $dbh;
1201 $this->_case_exact = $search->_case_exact;
1203 function _pagename_match_clause($node) {
1204 $word = $node->sql();
1205 return $this->_case_exact
1206 ? "pagename LIKE '$word'"
1207 : "LOWER(pagename) LIKE '$word'";
1209 function _fulltext_match_clause($node) {
1210 $word = $node->sql();
1211 return $this->_case_exact
1212 ? "pagename LIKE '$word' OR content LIKE '$word'"
1213 : "LOWER(pagename) LIKE '$word' OR content LIKE '$word'";
1217 // Following function taken from Pear::DB (prev. from adodb-pear.inc.php).
1218 // Eventually, change index.php to provide the relevant information
1221 * Parse a data source name.
1223 * Additional keys can be added by appending a URI query string to the
1226 * The format of the supplied DSN is in its fullest form:
1228 * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
1231 * Most variations are allowed:
1233 * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
1234 * phptype://username:password@hostspec/database_name
1235 * phptype://username:password@hostspec
1236 * phptype://username@hostspec
1237 * phptype://hostspec/database
1238 * phptype://hostspec
1243 * @param string $dsn Data Source Name to be parsed
1245 * @return array an associative array with the following keys:
1246 * + phptype: Database backend used in PHP (mysql, odbc etc.)
1247 * + dbsyntax: Database used with regards to SQL syntax etc.
1248 * + protocol: Communication protocol to use (tcp, unix etc.)
1249 * + hostspec: Host specification (hostname[:port])
1250 * + database: Database to use on the DBMS server
1251 * + username: User name for login
1252 * + password: Password for login
1254 * @author Tomas V.V.Cox <cox@idecnet.com>
1256 function parseDSN($dsn)
1260 'dbsyntax' => false,
1261 'username' => false,
1262 'password' => false,
1263 'protocol' => false,
1264 'hostspec' => false,
1267 'database' => false,
1270 if (is_array($dsn)) {
1271 $dsn = array_merge($parsed, $dsn);
1272 if (!$dsn['dbsyntax']) {
1273 $dsn['dbsyntax'] = $dsn['phptype'];
1278 // Find phptype and dbsyntax
1279 if (($pos = strpos($dsn, '://')) !== false) {
1280 $str = substr($dsn, 0, $pos);
1281 $dsn = substr($dsn, $pos + 3);
1287 // Get phptype and dbsyntax
1288 // $str => phptype(dbsyntax)
1289 if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
1290 $parsed['phptype'] = $arr[1];
1291 $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
1293 $parsed['phptype'] = $str;
1294 $parsed['dbsyntax'] = $str;
1301 // Get (if found): username and password
1302 // $dsn => username:password@protocol+hostspec/database
1303 if (($at = strrpos($dsn,'@')) !== false) {
1304 $str = substr($dsn, 0, $at);
1305 $dsn = substr($dsn, $at + 1);
1306 if (($pos = strpos($str, ':')) !== false) {
1307 $parsed['username'] = rawurldecode(substr($str, 0, $pos));
1308 $parsed['password'] = rawurldecode(substr($str, $pos + 1));
1310 $parsed['username'] = rawurldecode($str);
1314 // Find protocol and hostspec
1316 // $dsn => proto(proto_opts)/database
1317 if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
1319 $proto_opts = $match[2] ? $match[2] : false;
1322 // $dsn => protocol+hostspec/database (old format)
1324 if (strpos($dsn, '+') !== false) {
1325 list($proto, $dsn) = explode('+', $dsn, 2);
1327 if (strpos($dsn, '/') !== false) {
1328 list($proto_opts, $dsn) = explode('/', $dsn, 2);
1335 // process the different protocol options
1336 $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
1337 $proto_opts = rawurldecode($proto_opts);
1338 if ($parsed['protocol'] == 'tcp') {
1339 if (strpos($proto_opts, ':') !== false) {
1340 list($parsed['hostspec'], $parsed['port']) = explode(':', $proto_opts);
1342 $parsed['hostspec'] = $proto_opts;
1344 } elseif ($parsed['protocol'] == 'unix') {
1345 $parsed['socket'] = $proto_opts;
1348 // Get dabase if any
1352 if (($pos = strpos($dsn, '?')) === false) {
1353 $parsed['database'] = $dsn;
1354 // /database?param1=value1¶m2=value2
1356 $parsed['database'] = substr($dsn, 0, $pos);
1357 $dsn = substr($dsn, $pos + 1);
1358 if (strpos($dsn, '&') !== false) {
1359 $opts = explode('&', $dsn);
1360 } else { // database?param1=value1
1361 $opts = array($dsn);
1363 foreach ($opts as $opt) {
1364 list($key, $value) = explode('=', $opt);
1365 if (!isset($parsed[$key])) {
1366 // don't allow params overwrite
1367 $parsed[$key] = rawurldecode($value);
1376 // $Log: not supported by cvs2svn $
1377 // Revision 1.67 2004/12/22 15:47:41 rurban
1378 // fix wrong _update_nonempty_table on empty content (i.e. the new deletePage)
1380 // Revision 1.66 2004/12/13 14:39:16 rurban
1383 // Revision 1.65 2004/12/10 22:15:00 rurban
1384 // fix $page->get('_cached_html)
1385 // refactor upgrade db helper _convert_cached_html() to be able to call them from WikiAdminUtils also.
1386 // support 2nd genericSqlQuery param (bind huge arg)
1388 // Revision 1.64 2004/12/10 02:45:27 rurban
1389 // SQL optimization:
1390 // put _cached_html from pagedata into a new seperate blob, not huge serialized string.
1391 // it is only rarelely needed: for current page only, if-not-modified
1392 // but was extracted for every simple page iteration.
1394 // Revision 1.63 2004/12/08 12:55:51 rurban
1395 // support new non-destructive delete_page via generic backend method
1397 // Revision 1.62 2004/12/06 19:50:04 rurban
1398 // enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
1399 // renamed delete_page to purge_page.
1400 // enable action=edit&version=-1 to force creation of a new version.
1401 // added BABYCART_PATH config
1402 // fixed magiqc in adodb.inc.php
1403 // and some more docs
1405 // Revision 1.61 2004/11/30 17:45:53 rurban
1406 // exists_links backend implementation
1408 // Revision 1.60 2004/11/28 20:42:18 rurban
1409 // Optimize PearDB _extract_version_data and _extract_page_data.
1411 // Revision 1.59 2004/11/27 14:39:05 rurban
1412 // simpified regex search architecture:
1413 // no db specific node methods anymore,
1414 // new sql() method for each node
1415 // parallel to regexp() (which returns pcre)
1416 // regex types bitmasked (op's not yet)
1418 // clarified WikiDB::quote() backend methods:
1419 // ->quote() adds surrounsing quotes
1420 // ->qstr() (new method) assumes strings and adds no quotes! (in contrast to ADODB)
1421 // pear and adodb have now unified quote methods for all generic queries.
1423 // Revision 1.58 2004/11/26 18:39:02 rurban
1424 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
1426 // Revision 1.57 2004/11/25 17:20:51 rurban
1427 // and again a couple of more native db args: backlinks
1429 // Revision 1.56 2004/11/23 13:35:48 rurban
1430 // add case_exact search
1432 // Revision 1.55 2004/11/21 11:59:26 rurban
1433 // remove final \n to be ob_cache independent
1435 // Revision 1.54 2004/11/20 17:49:39 rurban
1436 // add fast exclude support to SQL get_all_pages
1438 // Revision 1.53 2004/11/20 17:35:58 rurban
1439 // improved WantedPages SQL backends
1440 // PageList::sortby new 3rd arg valid_fields (override db fields)
1441 // WantedPages sql pager inexact for performance reasons:
1442 // assume 3 wantedfrom per page, to be correct, no getTotal()
1443 // support exclude argument for get_all_pages, new _sql_set()
1445 // Revision 1.52 2004/11/17 20:07:17 rurban
1448 // Revision 1.51 2004/11/15 15:57:37 rurban
1449 // silent cache warning
1451 // Revision 1.50 2004/11/10 19:32:23 rurban
1452 // * optimize increaseHitCount, esp. for mysql.
1453 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
1454 // * Pear_DB version logic (awful but needed)
1455 // * fix broken ADODB quote
1456 // * _extract_page_data simplification
1458 // Revision 1.49 2004/11/10 15:29:21 rurban
1459 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
1460 // * ACCESS_LOG_SQL: fix cause request not yet initialized
1461 // * WikiDB: moved SQL specific methods upwards
1462 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
1463 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
1465 // Revision 1.48 2004/11/09 17:11:16 rurban
1466 // * revert to the wikidb ref passing. there's no memory abuse there.
1467 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
1468 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
1469 // are also needed at the rendering for linkExistingWikiWord().
1470 // pass options to pageiterator.
1471 // use this cache also for _get_pageid()
1472 // This saves about 8 SELECT count per page (num all pagelinks).
1473 // * fix passing of all page fields to the pageiterator.
1474 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
1476 // Revision 1.47 2004/11/06 17:11:42 rurban
1477 // The optimized version doesn't query for pagedata anymore.
1479 // Revision 1.46 2004/11/01 10:43:58 rurban
1480 // seperate PassUser methods into seperate dir (memory usage)
1481 // fix WikiUser (old) overlarge data session
1482 // remove wikidb arg from various page class methods, use global ->_dbi instead
1485 // Revision 1.45 2004/10/14 17:19:17 rurban
1486 // allow most_popular sortby arguments
1488 // Revision 1.44 2004/09/06 08:33:09 rurban
1489 // force explicit mysql auto-incrementing, atomic version
1491 // Revision 1.43 2004/07/10 08:50:24 rurban
1492 // applied patch by Philippe Vanhaesendonck:
1493 // pass column list to iterators so we can FETCH_NUM in all cases.
1494 // bind UPDATE pramas for huge pagedata.
1495 // portable oracle backend
1497 // Revision 1.42 2004/07/09 10:06:50 rurban
1498 // Use backend specific sortby and sortable_columns method, to be able to
1499 // select between native (Db backend) and custom (PageList) sorting.
1500 // Fixed PageList::AddPageList (missed the first)
1501 // Added the author/creator.. name to AllPagesBy...
1502 // display no pages if none matched.
1503 // Improved dba and file sortby().
1504 // Use &$request reference
1506 // Revision 1.41 2004/07/08 21:32:35 rurban
1507 // Prevent from more warnings, minor db and sort optimizations
1509 // Revision 1.40 2004/07/08 16:56:16 rurban
1510 // use the backendType abstraction
1512 // Revision 1.39 2004/07/05 13:56:22 rurban
1513 // sqlite autoincrement fix
1515 // Revision 1.38 2004/07/05 12:57:54 rurban
1516 // add mysql timeout
1518 // Revision 1.37 2004/07/04 10:24:43 rurban
1519 // forgot the expressions
1521 // Revision 1.36 2004/07/03 16:51:06 rurban
1522 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
1523 // added atomic mysql REPLACE for PearDB as in ADODB
1524 // fixed _lock_tables typo links => link
1525 // fixes unserialize ADODB bug in line 180
1527 // Revision 1.35 2004/06/28 14:45:12 rurban
1528 // fix adodb_sqlite to have the same dsn syntax as pear, use pconnect if requested
1530 // Revision 1.34 2004/06/28 14:17:38 rurban
1531 // updated DSN parser from Pear. esp. for sqlite
1533 // Revision 1.33 2004/06/27 10:26:02 rurban
1534 // oci8 patch by Philippe Vanhaesendonck + some ADODB notes+fixes
1536 // Revision 1.32 2004/06/25 14:15:08 rurban
1537 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
1539 // Revision 1.31 2004/06/16 10:38:59 rurban
1540 // Disallow refernces in calls if the declaration is a reference
1541 // ("allow_call_time_pass_reference clean").
1542 // PhpWiki is now allow_call_time_pass_reference = Off clean,
1543 // but several external libraries may not.
1544 // In detail these libs look to be affected (not tested):
1548 // Revision 1.30 2004/06/07 19:31:31 rurban
1549 // fixed ADOOB upgrade: listOfFields()
1551 // Revision 1.29 2004/05/12 10:49:55 rurban
1552 // require_once fix for those libs which are loaded before FileFinder and
1553 // its automatic include_path fix, and where require_once doesn't grok
1554 // dirname(__FILE__) != './lib'
1555 // upgrade fix with PearDB
1556 // navbar.tmpl: remove spaces for IE button alignment
1558 // Revision 1.28 2004/05/06 19:26:16 rurban
1559 // improve stability, trying to find the InlineParser endless loop on sf.net
1561 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
1563 // Revision 1.27 2004/05/06 17:30:38 rurban
1564 // CategoryGroup: oops, dos2unix eol
1565 // improved phpwiki_version:
1566 // pre -= .0001 (1.3.10pre: 1030.099)
1567 // -p1 += .001 (1.3.9-p1: 1030.091)
1568 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
1569 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
1570 // backend->backendType(), backend->database(),
1571 // backend->listOfFields(),
1572 // backend->listOfTables(),
1574 // Revision 1.26 2004/04/26 20:44:35 rurban
1575 // locking table specific for better databases
1577 // Revision 1.25 2004/04/20 00:06:04 rurban
1578 // themable paging support
1580 // Revision 1.24 2004/04/18 01:34:20 rurban
1581 // protect most_popular from sortby=mtime
1583 // Revision 1.23 2004/04/16 14:19:39 rurban
1584 // updated ADODB notes
1587 // (c-file-style: "gnu")
1591 // c-basic-offset: 4
1592 // c-hanging-comment-ender-p: nil
1593 // indent-tabs-mode: nil