2 rcs_id('$Id: ADODB.php,v 1.62 2004-12-06 19:50:04 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 backend, 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.
39 * phpwiki-1.3.11, by Philippe Vanhaesendonck
40 * - pass column list to iterators so we can FETCH_NUM in all cases
42 * ADODB basic differences to PearDB: It pre-fetches the first row into fields,
43 * is dirtier in style, layout and more low-level ("worse is better").
44 * It has less needed basic features (modifyQuery, locks, ...), but some more
45 * unneeded features included: paging, monitoring and sessions, and much more drivers.
46 * No locking (which PearDB supports in some backends), and sequences are very
47 * bad compared to PearDB.
49 * Old Comments, by Lawrence Akka:
50 * 1) ADODB's GetRow() is slightly different from that in PEAR. It does not
51 * accept a fetchmode parameter
52 * That doesn't matter too much here, since we only ever use FETCHMODE_ASSOC
53 * 2) No need for ''s around strings in sprintf arguments - qstr puts them
55 * 3) ADODB has a version of GetOne, but it is difficult to use it when
56 * FETCH_ASSOC is in effect.
57 * Instead, use $rs = Execute($query); $value = $rs->fields["$colname"]
58 * 4) No error handling yet - could use ADOConnection->raiseErrorFn
59 * 5) It used to be faster then PEAR/DB at the beginning of 2002.
60 * Now at August 2002 PEAR/DB with our own page cache added,
61 * performance is comparable.
64 require_once('lib/WikiDB/backend.php');
65 // Error handling - calls trigger_error. NB - does not close the connection. Does it need to?
66 include_once('lib/WikiDB/adodb/adodb-errorhandler.inc.php');
67 // include the main adodb file
68 require_once('lib/WikiDB/adodb/adodb.inc.php');
70 class WikiDB_backend_ADODB
71 extends WikiDB_backend
74 function WikiDB_backend_ADODB ($dbparams) {
75 $parsed = parseDSN($dbparams['dsn']);
76 $this->_dbparams = $dbparams;
77 $this->_dbh = &ADONewConnection($parsed['phptype']);
78 if (DEBUG & _DEBUG_SQL) {
79 $this->_dbh->debug = true;
80 $GLOBALS['ADODB_OUTP'] = '_sql_debuglog';
82 $this->_dsn = $parsed;
83 if (!empty($parsed['persistent']))
84 $conn = $this->_dbh->PConnect($parsed['hostspec'],$parsed['username'],
85 $parsed['password'], $parsed['database']);
87 $conn = $this->_dbh->Connect($parsed['hostspec'],$parsed['username'],
88 $parsed['password'], $parsed['database']);
90 // Since 1.3.10 we use the faster ADODB_FETCH_NUM,
91 // with some ASSOC based recordsets.
92 $GLOBALS['ADODB_FETCH_MODE'] = ADODB_FETCH_NUM;
93 $this->_dbh->SetFetchMode(ADODB_FETCH_NUM);
94 $GLOBALS['ADODB_COUNTRECS'] = false;
96 $prefix = isset($dbparams['prefix']) ? $dbparams['prefix'] : '';
98 = array('page_tbl' => $prefix . 'page',
99 'version_tbl' => $prefix . 'version',
100 'link_tbl' => $prefix . 'link',
101 'recent_tbl' => $prefix . 'recent',
102 'nonempty_tbl' => $prefix . 'nonempty');
103 $page_tbl = $this->_table_names['page_tbl'];
104 $version_tbl = $this->_table_names['version_tbl'];
105 $this->page_tbl_fields = "$page_tbl.id AS id, $page_tbl.pagename AS pagename, "
106 . "$page_tbl.hits hits";
107 $this->page_tbl_field_list = array('id', 'pagename', 'hits');
108 $this->version_tbl_fields = "$version_tbl.version AS version, "
109 . "$version_tbl.mtime AS mtime, "
110 . "$version_tbl.minor_edit AS minor_edit, $version_tbl.content AS content, "
111 . "$version_tbl.versiondata AS versiondata";
112 $this->version_tbl_field_list = array('version', 'mtime', 'minor_edit', 'content',
116 = array('maxmajor' => "MAX(CASE WHEN minor_edit=0 THEN version END)",
117 'maxminor' => "MAX(CASE WHEN minor_edit<>0 THEN version END)",
118 'maxversion' => "MAX(version)",
119 'notempty' => "<>''",
120 'iscontent' => "$version_tbl.content<>''");
121 $this->_lock_count = 0;
125 * Close database connection.
130 if ($this->_lock_count) {
131 trigger_error("WARNING: database still locked " . '(lock_count = $this->_lock_count)' . "\n<br />",
134 // $this->_dbh->setErrorHandling(PEAR_ERROR_PRINT); // prevent recursive loops.
135 $this->unlock(false,'force');
137 $this->_dbh->close();
142 * Fast test for wikipage.
144 function is_wiki_page($pagename) {
146 extract($this->_table_names);
147 $row = $dbh->GetRow(sprintf("SELECT $page_tbl.id AS id"
148 . " FROM $nonempty_tbl, $page_tbl"
149 . " WHERE $nonempty_tbl.id=$page_tbl.id"
150 . " AND pagename=%s",
151 $dbh->qstr($pagename)));
152 return $row ? $row[0] : false;
155 function get_all_pagenames() {
157 extract($this->_table_names);
158 $result = $dbh->Execute("SELECT pagename"
159 . " FROM $nonempty_tbl, $page_tbl"
160 . " WHERE $nonempty_tbl.id=$page_tbl.id");
161 return $result->GetArray();
164 function numPages($filter=false, $exclude='') {
166 extract($this->_table_names);
167 $result = $dbh->getRow("SELECT count(*)"
168 . " FROM $nonempty_tbl, $page_tbl"
169 . " WHERE $nonempty_tbl.id=$page_tbl.id");
173 function increaseHitCount($pagename) {
175 // Hits is the only thing we can update in a fast manner.
176 // Note that this will fail silently if the page does not
177 // have a record in the page table. Since it's just the
178 // hit count, who cares?
179 $dbh->Execute(sprintf("UPDATE %s SET hits=hits+1 WHERE pagename=%s LIMIT 1",
180 $this->_table_names['page_tbl'],
181 $dbh->qstr($pagename)));
186 * Read page information from database.
188 function get_pagedata($pagename) {
190 $row = $dbh->GetRow(sprintf("SELECT id,pagename,hits,pagedata FROM %s WHERE pagename=%s",
191 $this->_table_names['page_tbl'],
192 $dbh->qstr($pagename)));
193 return $row ? $this->_extract_page_data($row[3], $row[2]) : false;
196 function _extract_page_data($data, $hits) {
197 if (empty($data)) return array();
198 else return array_merge(array('hits' => $hits), $this->_unserialize($data));
201 function update_pagedata($pagename, $newdata) {
203 $page_tbl = $this->_table_names['page_tbl'];
205 // Hits is the only thing we can update in a fast manner.
206 if (count($newdata) == 1 && isset($newdata['hits'])) {
207 // Note that this will fail silently if the page does not
208 // have a record in the page table. Since it's just the
209 // hit count, who cares?
210 $dbh->Execute(sprintf("UPDATE $page_tbl SET hits=%d WHERE pagename=%s",
211 $newdata['hits'], $dbh->qstr($pagename)));
214 $where = sprintf("pagename=%s",$dbh->qstr($pagename));
216 $dbh->RowLock($page_tbl,$where);
218 $data = $this->get_pagedata($pagename);
221 $this->_get_pageid($pagename, true); // Creates page record
224 @$hits = (int)$data['hits'];
225 unset($data['hits']);
227 foreach ($newdata as $key => $val) {
230 else if (empty($val))
235 if ($dbh->Execute("UPDATE $page_tbl"
236 . " SET hits=?, pagedata=?"
237 . " WHERE pagename=?",
238 array($hits, $this->_serialize($data),$pagename))) {
239 $dbh->CommitTrans( );
242 $dbh->RollbackTrans( );
247 function _get_pageid($pagename, $create_if_missing = false) {
251 $cache =& $request->_dbi->_cache->_id_cache;
252 if (isset($cache[$pagename])) return $cache[$pagename];
255 $page_tbl = $this->_table_names['page_tbl'];
256 $query = sprintf("SELECT id FROM $page_tbl WHERE pagename=%s",
257 $dbh->qstr($pagename));
258 if (! $create_if_missing ) {
259 $row = $dbh->GetRow($query);
260 return $row ? $row[0] : false;
262 $row = $dbh->GetRow($query);
264 //mysql, mysqli or mysqlt
265 if (substr($dbh->databaseType,0,5) == 'mysql') {
266 // have auto-incrementing, atomic version
267 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
269 . " VALUES(NULL,%s)",
270 $dbh->qstr($pagename)));
271 $id = $dbh->_insertid();
273 //$id = $dbh->GenID($page_tbl . 'seq');
274 // Better generic version than with adodob::genID
275 //TODO: Does the DBM has subselects? Then we can do it with select max(id)+1
276 $this->lock(array('page'));
278 $dbh->CommitLock($page_tbl);
279 $row = $dbh->GetRow("SELECT MAX(id) FROM $page_tbl");
281 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
282 . " (id,pagename,hits)"
283 . " VALUES (%d,%s,0)",
284 $id, $dbh->qstr($pagename)));
285 if ($rs) $dbh->CommitTrans( );
286 else $dbh->RollbackTrans( );
287 $this->unlock(array('page'));
295 function get_latest_version($pagename) {
297 extract($this->_table_names);
298 $row = $dbh->GetRow(sprintf("SELECT latestversion"
299 . " FROM $page_tbl, $recent_tbl"
300 . " WHERE $page_tbl.id=$recent_tbl.id"
301 . " AND pagename=%s",
302 $dbh->qstr($pagename)));
303 return $row ? (int)$row[0] : false;
306 function get_previous_version($pagename, $version) {
308 extract($this->_table_names);
309 // Use SELECTLIMIT for maximum portability
310 $rs = $dbh->SelectLimit(sprintf("SELECT version"
311 . " FROM $version_tbl, $page_tbl"
312 . " WHERE $version_tbl.id=$page_tbl.id"
314 . " AND version < %d"
315 . " ORDER BY version DESC"
316 ,$dbh->qstr($pagename),
319 return $rs->fields ? (int)$rs->fields[0] : false;
325 * @param $version int Which version to get.
327 * @return hash The version data, or false if specified version does not
330 function get_versiondata($pagename, $version, $want_content = false) {
332 extract($this->_table_names);
333 extract($this->_expressions);
335 assert(is_string($pagename) and $pagename != '');
336 assert($version > 0);
338 // FIXME: optimization: sometimes don't get page data?
340 $fields = $this->page_tbl_fields . ", $page_tbl.pagedata AS pagedata"
341 . ', ' . $this->version_tbl_fields;
343 $fields = $this->page_tbl_fields . ", '' AS pagedata"
344 . ", $version_tbl.version AS version, $version_tbl.mtime AS mtime, "
345 . "$version_tbl.minor_edit AS minor_edit, $iscontent AS have_content, "
346 . "$version_tbl.versiondata as versiondata";
348 $row = $dbh->GetRow(sprintf("SELECT $fields"
349 . " FROM $page_tbl, $version_tbl"
350 . " WHERE $page_tbl.id=$version_tbl.id"
353 $dbh->qstr($pagename), $version));
354 return $row ? $this->_extract_version_data_num($row, $want_content) : false;
357 function _extract_version_data_num($row, $want_content) {
362 //$pagename &= $row[1];
363 $data = empty($row[8]) ? array() : $this->_unserialize($row[8]);
364 $data['mtime'] = $row[5];
365 $data['is_minor_edit'] = !empty($row[6]);
367 $data['%content'] = $row[7];
369 $data['%content'] = !empty($row[7]);
371 if (!empty($row[3])) {
372 $data['%pagedata'] = $this->_extract_page_data($row[3], $row[2]);
377 function _extract_version_data_assoc($row) {
382 $data = empty($versiondata) ? array() : $this->_unserialize($versiondata);
383 $data['mtime'] = $mtime;
384 $data['is_minor_edit'] = !empty($minor_edit);
386 $data['%content'] = $content;
387 elseif ($have_content)
388 $data['%content'] = true;
390 $data['%content'] = '';
391 if (!empty($pagedata)) {
392 $data['%pagedata'] = $this->_extract_page_data($pagedata, $hits);
398 * Create a new revision of a page.
400 function set_versiondata($pagename, $version, $data) {
402 $version_tbl = $this->_table_names['version_tbl'];
404 $minor_edit = (int) !empty($data['is_minor_edit']);
405 unset($data['is_minor_edit']);
407 $mtime = (int)$data['mtime'];
408 unset($data['mtime']);
409 assert(!empty($mtime));
411 @$content = (string) $data['%content'];
412 unset($data['%content']);
413 unset($data['%pagedata']);
415 $this->lock(array('page','recent','version','nonempty'));
417 $dbh->CommitLock($version_tbl);
418 $id = $this->_get_pageid($pagename, true);
419 $backend_type = $this->backendType();
420 // optimize: mysql can do this with one REPLACE INTO.
421 if (substr($backend_type,0,5) == 'mysql') {
422 $rs = $dbh->Execute(sprintf("REPLACE INTO $version_tbl"
423 . " (id,version,mtime,minor_edit,content,versiondata)"
424 . " VALUES(%d,%d,%d,%d,%s,%s)",
425 $id, $version, $mtime, $minor_edit,
426 $dbh->qstr($content),
427 $dbh->qstr($this->_serialize($data))));
429 $dbh->Execute(sprintf("DELETE FROM $version_tbl"
430 . " WHERE id=%d AND version=%d",
432 $rs = $dbh->Execute("INSERT INTO $version_tbl"
433 . " (id,version,mtime,minor_edit,content,versiondata)"
434 . " VALUES(?,?,?,?,?,?)",
435 array($id, $version, $mtime, $minor_edit,
436 $content, $this->_serialize($data)));
438 $this->_update_recent_table($id);
439 $this->_update_nonempty_table($id);
440 if ($rs) $dbh->CommitTrans( );
441 else $dbh->RollbackTrans( );
442 $this->unlock(array('page','recent','version','nonempty'));
446 * Delete an old revision of a page.
448 function delete_versiondata($pagename, $version) {
450 extract($this->_table_names);
452 $this->lock(array('version'));
453 if ( ($id = $this->_get_pageid($pagename)) ) {
454 $dbh->Execute("DELETE FROM $version_tbl"
455 . " WHERE id=$id AND version=$version");
456 $this->_update_recent_table($id);
457 // This shouldn't be needed (as long as the latestversion
458 // never gets deleted.) But, let's be safe.
459 $this->_update_nonempty_table($id);
461 $this->unlock(array('version'));
465 * Delete page from the database with backup possibility.
467 * deletePage increments latestversion in recent to a non-existent version,
468 * and removes the nonempty row,
469 * so that get_latest_version returns id+1 and get_previous_version returns prev id
470 * and page->exists returns false.
472 function delete_page($pagename) {
474 extract($this->_table_names);
477 $dbh->CommitLock($recent_tbl);
478 if (($id = $this->_get_pageid($pagename, false)) === false) {
479 $dbh->RollbackTrans( );
482 $version = $this->get_latest_version($pagename);
484 $user =& $GLOBALS['request']->_user;
485 $meta = array('author' => $user->getId(),
486 'author_id' => $user->getAuthenticatedId(),
488 $this->lock(array('version','recent','nonempty','page','link'));
489 if ($dbh->Execute("UPDATE $recent_tbl SET latestversion=latestversion+1,latestmajor=latestversion+1,latestminor=NULL WHERE id=$id")
490 and $dbh->Execute("INSERT INTO $version_tbl"
491 . " (id,version,mtime,minor_edit,content,versiondata)"
492 . " VALUES(?,?,?,?,?,?)",
493 array($id, $version+1, $mtime, 0,
494 '', $this->_serialize($meta)))
495 and $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id")
496 and $this->set_links($pagename, false)
497 and $dbh->Execute("UPDATE $page_tbl SET pagedata='' WHERE id=$id") // keep hits but delete meta-data
500 $this->unlock(array('version','recent','nonempty','page','link'));
501 $dbh->CommitTrans( );
504 $this->unlock(array('version','recent','nonempty','page','link'));
505 $dbh->RollbackTrans( );
510 function purge_page($pagename) {
512 extract($this->_table_names);
514 $this->lock(array('version','recent','nonempty','page','link'));
515 if ( ($id = $this->_get_pageid($pagename, false)) ) {
516 $dbh->Execute("DELETE FROM $version_tbl WHERE id=$id");
517 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id");
518 $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id");
519 $this->set_links($pagename, false);
520 $row = $dbh->GetRow("SELECT COUNT(*) FROM $link_tbl WHERE linkto=$id");
521 if ($row and $row[0]) {
522 // We're still in the link table (dangling link) so we can't delete this
524 $dbh->Execute("UPDATE $page_tbl SET hits=0, pagedata='' WHERE id=$id");
528 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id");
532 $result = -1; // already purged or not existing
534 $this->unlock(array('version','recent','nonempty','page','link'));
539 // The only thing we might be interested in updating which we can
540 // do fast in the flags (minor_edit). I think the default
541 // update_versiondata will work fine...
542 //function update_versiondata($pagename, $version, $data) {
545 function set_links($pagename, $links) {
546 // Update link table.
547 // FIXME: optimize: mysql can do this all in one big INSERT/REPLACE.
550 extract($this->_table_names);
552 $this->lock(array('link'));
553 $pageid = $this->_get_pageid($pagename, true);
556 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
557 foreach($links as $link) {
558 if (isset($linkseen[$link]))
560 $linkseen[$link] = true;
561 $linkid = $this->_get_pageid($link, true);
562 $dbh->Execute("INSERT INTO $link_tbl (linkfrom, linkto)"
563 . " VALUES ($pageid, $linkid)");
566 // purge page table: delete all non-referenced pages
567 // for all previously linked pages...
568 foreach ($dbh->getRow("SELECT $link_tbl.linkto as id FROM $link_tbl WHERE linkfrom=$pageid") as $id) {
569 // ...check if the page is empty and has no version
570 if ($dbh->getRow("SELECT $page_tbl.id FROM $page_tbl LEFT JOIN $nonempty_tbl USING (id) "
571 ." LEFT JOIN $version_tbl USING (id)"
572 ." WHERE ISNULL($nonempty_tbl.id) AND ISNULL($version_tbl.id) AND $page_tbl.id=$id")) {
573 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id"); // this purges the link
574 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id"); // may fail
577 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
579 $this->unlock(array('link'));
584 * Find pages which link to or are linked from a page.
586 * Optimization: save request->_dbi->_iwpcache[] to avoid further iswikipage checks
587 * (linkExistingWikiWord or linkUnknownWikiWord)
588 * This is called on every page header GleanDescription, so we can store all the existing links.
590 function get_links($pagename, $reversed=true, $include_empty=false,
591 $sortby=false, $limit=false, $exclude='') {
593 extract($this->_table_names);
596 list($have,$want) = array('linkee', 'linker');
598 list($have,$want) = array('linker', 'linkee');
599 $orderby = $this->sortby($sortby, 'db', array('pagename'));
600 if ($orderby) $orderby = ' ORDER BY $want.' . $orderby;
601 if ($exclude) // array of pagenames
602 $exclude = " AND $want.pagename NOT IN ".$this->_sql_set($exclude);
606 $qpagename = $dbh->qstr($pagename);
607 // removed ref to FETCH_MODE in next line
608 $result = $dbh->Execute("SELECT $want.id AS id, $want.pagename AS pagename,"
609 . " $want.hits AS hits"
610 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee"
611 . (!$include_empty ? ", $nonempty_tbl" : '')
612 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
613 . " AND $have.pagename=$qpagename"
614 . (!$include_empty ? " AND $nonempty_tbl.id=$want.id" : "")
615 //. " GROUP BY $want.id"
618 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
622 * Find if a page links to another page
624 function exists_link($pagename, $link, $reversed=false) {
626 extract($this->_table_names);
629 list($have, $want) = array('linkee', 'linker');
631 list($have, $want) = array('linker', 'linkee');
632 $qpagename = $dbh->qstr($pagename);
633 $qlink = $dbh->qstr($link);
634 $row = $dbh->GetRow("SELECT IF($want.pagename,1,0)"
635 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee, $nonempty_tbl"
636 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
637 . " AND $have.pagename=$qpagename"
638 . " AND $want.pagename=$qlink"
643 function get_all_pages($include_empty=false, $sortby=false, $limit=false, $exclude='') {
645 extract($this->_table_names);
646 $orderby = $this->sortby($sortby, 'db');
647 if ($orderby) $orderby = ' ORDER BY ' . $orderby;
648 if ($exclude) // array of pagenames
649 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
653 //$dbh->SetFetchMode(ADODB_FETCH_ASSOC);
654 if (strstr($orderby, 'mtime ')) { // was ' mtime'
655 if ($include_empty) {
657 . $this->page_tbl_fields
658 ." FROM $page_tbl, $recent_tbl, $version_tbl"
659 . " WHERE $page_tbl.id=$recent_tbl.id"
660 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
666 . $this->page_tbl_fields
667 . " FROM $nonempty_tbl, $page_tbl, $recent_tbl, $version_tbl"
668 . " WHERE $nonempty_tbl.id=$page_tbl.id"
669 . " AND $page_tbl.id=$recent_tbl.id"
670 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
675 if ($include_empty) {
677 . $this->page_tbl_fields
679 . ($exclude ? " WHERE $exclude" : '')
683 . $this->page_tbl_fields
684 . " FROM $nonempty_tbl, $page_tbl"
685 . " WHERE $nonempty_tbl.id=$page_tbl.id"
691 // extract from,count from limit
692 list($offset,$count) = $this->limit($limit);
693 $result = $dbh->SelectLimit($sql, $count, $offset);
695 $result = $dbh->Execute($sql);
697 //$dbh->SetFetchMode(ADODB_FETCH_NUM);
698 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
704 function text_search($search, $fullsearch=false) {
706 extract($this->_table_names);
708 $table = "$nonempty_tbl, $page_tbl";
709 $join_clause = "$nonempty_tbl.id=$page_tbl.id";
710 $fields = $this->page_tbl_fields;
711 $field_list = $this->page_tbl_field_list;
712 $searchobj = new WikiDB_backend_ADODB_search($search, $dbh);
715 $table .= ", $recent_tbl";
716 $join_clause .= " AND $page_tbl.id=$recent_tbl.id";
718 $table .= ", $version_tbl";
719 $join_clause .= " AND $page_tbl.id=$version_tbl.id AND latestversion=version";
721 $fields .= ",$page_tbl.pagedata as pagedata," . $this->version_tbl_fields;
722 $field_list = array_merge($field_list, array('pagedata'), $this->version_tbl_field_list);
723 $callback = new WikiMethodCb($searchobj, "_fulltext_match_clause");
725 $callback = new WikiMethodCb($searchobj, "_pagename_match_clause");
728 $search_clause = $search->makeSqlClauseObj($callback);
729 $result = $dbh->Execute("SELECT $fields FROM $table"
730 . " WHERE $join_clause"
731 . " AND ($search_clause)"
732 . " ORDER BY pagename");
733 return new WikiDB_backend_ADODB_iter($this, $result, $field_list);
736 function _sql_match_clause($word) {
737 //not sure if we need this. ADODB may do it for us
738 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word);
740 // (we need it for at least % and _ --- they're the wildcard characters
741 // for the LIKE operator, and we need to quote them if we're searching
742 // for literal '%'s or '_'s. --- I'm not sure about \, but it seems to
744 $word = $this->_dbh->qstr("%".strtolower($word)."%");
745 $page_tbl = $this->_table_names['page_tbl'];
746 return "LOWER($page_tbl.pagename) LIKE $word";
748 function _fullsearch_sql_match_clause($word) {
749 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word); //not sure if we need this
751 $word = $this->_dbh->qstr("%".strtolower($word)."%");
752 $page_tbl = $this->_table_names['page_tbl'];
753 return "LOWER($page_tbl.pagename) LIKE $word OR content LIKE $word";
758 * TODO: efficiently handle wildcards exclusion: exclude=Php* => 'Php%',
759 * not sets. See above, but the above methods find too much.
760 * This is only for already resolved wildcards:
761 * " WHERE $page_tbl.pagename NOT IN ".$this->_sql_set(array('page1','page2'));
763 function _sql_set(&$pagenames) {
765 foreach ($pagenames as $p) {
766 $s .= ($this->_dbh->qstr($p).",");
768 return substr($s,0,-1).")";
772 * Find highest or lowest hit counts.
774 function most_popular($limit=0, $sortby='-hits') {
776 extract($this->_table_names);
783 $where = " AND hits > 0";
785 if ($sortby != '-hits') {
786 if ($order = $this->sortby($sortby, 'db')) $orderby = " ORDER BY " . $order;
789 $orderby = " ORDER BY hits $order";
790 $limit = $limit ? $limit : -1;
792 $result = $dbh->SelectLimit("SELECT "
793 . $this->page_tbl_fields
794 . " FROM $nonempty_tbl, $page_tbl"
795 . " WHERE $nonempty_tbl.id=$page_tbl.id"
798 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
802 * Find recent changes.
804 function most_recent($params) {
807 $include_minor_revisions = false;
808 $exclude_major_revisions = false;
809 $include_all_revisions = false;
813 extract($this->_table_names);
817 $pick[] = "mtime >= $since";
819 if ($include_all_revisions) {
820 // Include all revisions of each page.
821 $table = "$page_tbl, $version_tbl";
822 $join_clause = "$page_tbl.id=$version_tbl.id";
824 if ($exclude_major_revisions) {
825 // Include only minor revisions
826 $pick[] = "minor_edit <> 0";
828 elseif (!$include_minor_revisions) {
829 // Include only major revisions
830 $pick[] = "minor_edit = 0";
834 $table = "$page_tbl, $recent_tbl";
835 $join_clause = "$page_tbl.id=$recent_tbl.id";
836 $table .= ", $version_tbl";
837 $join_clause .= " AND $version_tbl.id=$page_tbl.id";
839 if ($exclude_major_revisions) {
840 // Include only most recent minor revision
841 $pick[] = 'version=latestminor';
843 elseif (!$include_minor_revisions) {
844 // Include only most recent major revision
845 $pick[] = 'version=latestmajor';
848 // Include only the latest revision (whether major or minor).
849 $pick[] ='version=latestversion';
857 $limit = $limit ? $limit : -1;
858 $where_clause = $join_clause;
860 $where_clause .= " AND " . join(" AND ", $pick);
862 // FIXME: use SQL_BUFFER_RESULT for mysql?
863 // Use SELECTLIMIT for portability
864 $result = $dbh->SelectLimit("SELECT "
865 . $this->page_tbl_fields . ", " . $this->version_tbl_fields
867 . " WHERE $where_clause"
868 . " ORDER BY mtime $order",
870 //$result->fields['version'] = $result->fields[6];
871 return new WikiDB_backend_ADODB_iter($this, $result,
872 array_merge($this->page_tbl_field_list, $this->version_tbl_field_list));
876 * Find referenced empty pages.
878 function wanted_pages($exclude_from='', $exclude='', $sortby=false, $limit=false) {
880 extract($this->_table_names);
881 if ($orderby = $this->sortby($sortby, 'db', array('pagename','wantedfrom')))
882 $orderby = 'ORDER BY ' . $orderby;
884 if ($exclude_from) // array of pagenames
885 $exclude_from = " AND linked.pagename NOT IN ".$this->_sql_set($exclude_from);
886 if ($exclude) // array of pagenames
887 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
889 $limit = $limit ? $limit : -1;
891 all empty pages, independent of linkstatus:
892 select pagename as empty from page left join nonempty using(id) where isnull(nonempty.id);
893 only all empty pages, which have a linkto:
894 select page.pagename, linked.pagename as wantedfrom from link, page as linked
895 left join page on(link.linkto=page.id) left join nonempty on(link.linkto=nonempty.id)
896 where isnull(nonempty.id) and linked.id=link.linkfrom;
898 $sql = "SELECT $page_tbl.pagename,linked.pagename as wantedfrom"
899 . " FROM $link_tbl,$page_tbl as linked "
900 . " LEFT JOIN $page_tbl ON($link_tbl.linkto=$page_tbl.id)"
901 . " LEFT JOIN $nonempty_tbl ON($link_tbl.linkto=$nonempty_tbl.id)"
902 . " WHERE ISNULL($nonempty_tbl.id) AND linked.id=$link_tbl.linkfrom"
906 $result = $dbh->SelectLimit($sql, $limit);
907 return new WikiDB_backend_ADODB_iter($this, $result, array('pagename','wantedfrom'));
911 * Rename page in the database.
913 function rename_page($pagename, $to) {
915 extract($this->_table_names);
917 $this->lock(array('page'));
918 if ( ($id = $this->_get_pageid($pagename, false)) ) {
919 if ($new = $this->_get_pageid($to, false)) {
921 //this page does not exist (already verified before), but exists in the page table.
922 //so we delete this page.
923 $dbh->query(sprintf("DELETE FROM $page_tbl WHERE id=$id",
926 $dbh->query(sprintf("UPDATE $page_tbl SET pagename=%s WHERE id=$id",
929 $this->unlock(array('page'));
933 function _update_recent_table($pageid = false) {
935 extract($this->_table_names);
936 extract($this->_expressions);
938 $pageid = (int)$pageid;
940 // optimize: mysql can do this with one REPLACE INTO.
941 $backend_type = $this->backendType();
942 if (substr($backend_type,0,5) == 'mysql') {
943 $dbh->Execute("REPLACE INTO $recent_tbl"
944 . " (id, latestversion, latestmajor, latestminor)"
945 . " SELECT id, $maxversion, $maxmajor, $maxminor"
946 . " FROM $version_tbl"
947 . ( $pageid ? " WHERE id=$pageid" : "")
950 $this->lock(array('recent'));
951 $dbh->Execute("DELETE FROM $recent_tbl"
952 . ( $pageid ? " WHERE id=$pageid" : ""));
953 $dbh->Execute( "INSERT INTO $recent_tbl"
954 . " (id, latestversion, latestmajor, latestminor)"
955 . " SELECT id, $maxversion, $maxmajor, $maxminor"
956 . " FROM $version_tbl"
957 . ( $pageid ? " WHERE id=$pageid" : "")
959 $this->unlock(array('recent'));
963 function _update_nonempty_table($pageid = false) {
965 extract($this->_table_names);
966 extract($this->_expressions);
968 $pageid = (int)$pageid;
970 // Optimize: mysql can do this with one REPLACE INTO.
971 // FIXME: This treally should be moved into ADODB_mysql.php but
972 // then it must be duplicated for mysqli and mysqlt also.
973 $backend_type = $this->backendType();
974 if (substr($backend_type,0,5) == 'mysql') {
975 $dbh->Execute("REPLACE INTO $nonempty_tbl (id)"
976 . " SELECT $recent_tbl.id"
977 . " FROM $recent_tbl, $version_tbl"
978 . " WHERE $recent_tbl.id=$version_tbl.id"
979 . " AND version=latestversion"
980 // We have some specifics here (Oracle)
981 // . " AND content<>''"
982 . " AND content $notempty"
983 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
985 extract($this->_expressions);
986 $this->lock(array('nonempty'));
987 $dbh->Execute("DELETE FROM $nonempty_tbl"
988 . ( $pageid ? " WHERE id=$pageid" : ""));
989 $dbh->Execute("INSERT INTO $nonempty_tbl (id)"
990 . " SELECT $recent_tbl.id"
991 . " FROM $recent_tbl, $version_tbl"
992 . " WHERE $recent_tbl.id=$version_tbl.id"
993 . " AND version=latestversion"
994 // We have some specifics here (Oracle)
995 //. " AND content<>''"
996 . " AND content $notempty"
997 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
998 $this->unlock(array('nonempty'));
1004 * Grab a write lock on the tables in the SQL database.
1006 * Calls can be nested. The tables won't be unlocked until
1007 * _unlock_database() is called as many times as _lock_database().
1011 function lock($tables, $write_lock = true) {
1012 $this->_dbh->StartTrans();
1013 if ($this->_lock_count++ == 0) {
1014 $this->_current_lock = $tables;
1015 $this->_lock_tables($tables, $write_lock);
1020 * Overridden by non-transaction safe backends.
1022 function _lock_tables($tables, $write_lock) {
1023 return $this->_current_lock;
1027 * Release a write lock on the tables in the SQL database.
1031 * @param $force boolean Unlock even if not every call to lock() has been matched
1032 * by a call to unlock().
1034 * @see _lock_database
1036 function unlock($tables = false, $force = false) {
1037 if ($this->_lock_count == 0) {
1038 $this->_dbh->CompleteTrans(! $force);
1039 $this->_current_lock = false;
1042 if (--$this->_lock_count <= 0 || $force) {
1043 $this->_unlock_tables($tables);
1044 $this->_current_lock = false;
1045 $this->_lock_count = 0;
1047 $this->_dbh->CompleteTrans(! $force);
1051 * overridden by non-transaction safe backends
1053 function _unlock_tables($tables, $write_lock) {
1060 function _serialize($data) {
1063 assert(is_array($data));
1064 return serialize($data);
1070 function _unserialize($data) {
1071 return empty($data) ? array() : unserialize($data);
1074 /* some variables and functions for DB backend abstraction (action=upgrade) */
1075 function database () {
1076 return $this->_dbh->database;
1078 function backendType() {
1079 return $this->_dbh->databaseType;
1081 function connection() {
1082 return $this->_dbh->_connectionID;
1085 function listOfTables() {
1086 return $this->_dbh->MetaTables();
1088 function listOfFields($database,$table) {
1089 $field_list = array();
1090 foreach ($this->_dbh->MetaColumns($table,false) as $field) {
1091 $field_list[] = $field->name;
1098 class WikiDB_backend_ADODB_generic_iter
1099 extends WikiDB_backend_iterator
1101 function WikiDB_backend_ADODB_generic_iter($backend, $query_result, $field_list = NULL) {
1102 $this->_backend = &$backend;
1103 $this->_result = $query_result;
1105 if (is_null($field_list)) {
1106 // No field list passed, retrieve from DB
1107 // WikiLens is using the iterator behind the scene
1108 $field_list = array();
1109 $fields = $query_result->FieldCount();
1110 for ($i = 0; $i < $fields ; $i++) {
1111 $field_info = $query_result->FetchField($i);
1112 array_push($field_list, $field_info->name);
1116 $this->_fields = $field_list;
1120 if (!$this->_result) {
1123 $count = $this->_result->numRows();
1124 //$this->_result->Close();
1129 $result = &$this->_result;
1130 $backend = &$this->_backend;
1131 if (!$result || $result->EOF) {
1136 // Convert array to hash
1138 $rec_num = $result->fields;
1139 foreach ($this->_fields as $field) {
1140 $rec_assoc[$field] = $rec_num[$i++];
1142 // check if the cache can be populated here?
1144 $result->MoveNext();
1149 if ($this->_result) {
1150 /* call mysql_free_result($this->_queryID) */
1151 $this->_result->Close();
1152 $this->_result = false;
1157 class WikiDB_backend_ADODB_iter
1158 extends WikiDB_backend_ADODB_generic_iter
1161 $result = &$this->_result;
1162 $backend = &$this->_backend;
1163 if (!$result || $result->EOF) {
1168 // Convert array to hash
1170 $rec_num = $result->fields;
1171 foreach ($this->_fields as $field) {
1172 $rec_assoc[$field] = $rec_num[$i++];
1175 $result->MoveNext();
1176 if (isset($rec_assoc['pagedata']))
1177 $rec_assoc['pagedata'] = $backend->_extract_page_data($rec_assoc['pagedata'], $rec_assoc['hits']);
1178 if (!empty($rec_assoc['version'])) {
1179 $rec_assoc['versiondata'] = $backend->_extract_version_data_assoc($rec_assoc);
1185 class WikiDB_backend_ADODB_search
1186 extends WikiDB_backend_search
1188 function WikiDB_backend_ADODB_search(&$search, &$dbh) {
1189 $this->_dbh =& $dbh;
1190 $this->_case_exact = $search->_case_exact;
1192 function _pagename_match_clause($node) {
1193 $word = $node->sql();
1194 return $this->_case_exact
1195 ? "pagename LIKE '$word'"
1196 : "LOWER(pagename) LIKE '$word'";
1198 function _fulltext_match_clause($node) {
1199 $word = $node->sql();
1200 return $this->_case_exact
1201 ? "pagename LIKE '$word' OR content LIKE '$word'"
1202 : "LOWER(pagename) LIKE '$word' OR content LIKE '$word'";
1206 // Following function taken from Pear::DB (prev. from adodb-pear.inc.php).
1207 // Eventually, change index.php to provide the relevant information
1210 * Parse a data source name.
1212 * Additional keys can be added by appending a URI query string to the
1215 * The format of the supplied DSN is in its fullest form:
1217 * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
1220 * Most variations are allowed:
1222 * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
1223 * phptype://username:password@hostspec/database_name
1224 * phptype://username:password@hostspec
1225 * phptype://username@hostspec
1226 * phptype://hostspec/database
1227 * phptype://hostspec
1232 * @param string $dsn Data Source Name to be parsed
1234 * @return array an associative array with the following keys:
1235 * + phptype: Database backend used in PHP (mysql, odbc etc.)
1236 * + dbsyntax: Database used with regards to SQL syntax etc.
1237 * + protocol: Communication protocol to use (tcp, unix etc.)
1238 * + hostspec: Host specification (hostname[:port])
1239 * + database: Database to use on the DBMS server
1240 * + username: User name for login
1241 * + password: Password for login
1243 * @author Tomas V.V.Cox <cox@idecnet.com>
1245 function parseDSN($dsn)
1249 'dbsyntax' => false,
1250 'username' => false,
1251 'password' => false,
1252 'protocol' => false,
1253 'hostspec' => false,
1256 'database' => false,
1259 if (is_array($dsn)) {
1260 $dsn = array_merge($parsed, $dsn);
1261 if (!$dsn['dbsyntax']) {
1262 $dsn['dbsyntax'] = $dsn['phptype'];
1267 // Find phptype and dbsyntax
1268 if (($pos = strpos($dsn, '://')) !== false) {
1269 $str = substr($dsn, 0, $pos);
1270 $dsn = substr($dsn, $pos + 3);
1276 // Get phptype and dbsyntax
1277 // $str => phptype(dbsyntax)
1278 if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
1279 $parsed['phptype'] = $arr[1];
1280 $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
1282 $parsed['phptype'] = $str;
1283 $parsed['dbsyntax'] = $str;
1290 // Get (if found): username and password
1291 // $dsn => username:password@protocol+hostspec/database
1292 if (($at = strrpos($dsn,'@')) !== false) {
1293 $str = substr($dsn, 0, $at);
1294 $dsn = substr($dsn, $at + 1);
1295 if (($pos = strpos($str, ':')) !== false) {
1296 $parsed['username'] = rawurldecode(substr($str, 0, $pos));
1297 $parsed['password'] = rawurldecode(substr($str, $pos + 1));
1299 $parsed['username'] = rawurldecode($str);
1303 // Find protocol and hostspec
1305 // $dsn => proto(proto_opts)/database
1306 if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
1308 $proto_opts = $match[2] ? $match[2] : false;
1311 // $dsn => protocol+hostspec/database (old format)
1313 if (strpos($dsn, '+') !== false) {
1314 list($proto, $dsn) = explode('+', $dsn, 2);
1316 if (strpos($dsn, '/') !== false) {
1317 list($proto_opts, $dsn) = explode('/', $dsn, 2);
1324 // process the different protocol options
1325 $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
1326 $proto_opts = rawurldecode($proto_opts);
1327 if ($parsed['protocol'] == 'tcp') {
1328 if (strpos($proto_opts, ':') !== false) {
1329 list($parsed['hostspec'], $parsed['port']) = explode(':', $proto_opts);
1331 $parsed['hostspec'] = $proto_opts;
1333 } elseif ($parsed['protocol'] == 'unix') {
1334 $parsed['socket'] = $proto_opts;
1337 // Get dabase if any
1341 if (($pos = strpos($dsn, '?')) === false) {
1342 $parsed['database'] = $dsn;
1343 // /database?param1=value1¶m2=value2
1345 $parsed['database'] = substr($dsn, 0, $pos);
1346 $dsn = substr($dsn, $pos + 1);
1347 if (strpos($dsn, '&') !== false) {
1348 $opts = explode('&', $dsn);
1349 } else { // database?param1=value1
1350 $opts = array($dsn);
1352 foreach ($opts as $opt) {
1353 list($key, $value) = explode('=', $opt);
1354 if (!isset($parsed[$key])) {
1355 // don't allow params overwrite
1356 $parsed[$key] = rawurldecode($value);
1365 // $Log: not supported by cvs2svn $
1366 // Revision 1.61 2004/11/30 17:45:53 rurban
1367 // exists_links backend implementation
1369 // Revision 1.60 2004/11/28 20:42:18 rurban
1370 // Optimize PearDB _extract_version_data and _extract_page_data.
1372 // Revision 1.59 2004/11/27 14:39:05 rurban
1373 // simpified regex search architecture:
1374 // no db specific node methods anymore,
1375 // new sql() method for each node
1376 // parallel to regexp() (which returns pcre)
1377 // regex types bitmasked (op's not yet)
1379 // clarified WikiDB::quote() backend methods:
1380 // ->quote() adds surrounsing quotes
1381 // ->qstr() (new method) assumes strings and adds no quotes! (in contrast to ADODB)
1382 // pear and adodb have now unified quote methods for all generic queries.
1384 // Revision 1.58 2004/11/26 18:39:02 rurban
1385 // new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
1387 // Revision 1.57 2004/11/25 17:20:51 rurban
1388 // and again a couple of more native db args: backlinks
1390 // Revision 1.56 2004/11/23 13:35:48 rurban
1391 // add case_exact search
1393 // Revision 1.55 2004/11/21 11:59:26 rurban
1394 // remove final \n to be ob_cache independent
1396 // Revision 1.54 2004/11/20 17:49:39 rurban
1397 // add fast exclude support to SQL get_all_pages
1399 // Revision 1.53 2004/11/20 17:35:58 rurban
1400 // improved WantedPages SQL backends
1401 // PageList::sortby new 3rd arg valid_fields (override db fields)
1402 // WantedPages sql pager inexact for performance reasons:
1403 // assume 3 wantedfrom per page, to be correct, no getTotal()
1404 // support exclude argument for get_all_pages, new _sql_set()
1406 // Revision 1.52 2004/11/17 20:07:17 rurban
1409 // Revision 1.51 2004/11/15 15:57:37 rurban
1410 // silent cache warning
1412 // Revision 1.50 2004/11/10 19:32:23 rurban
1413 // * optimize increaseHitCount, esp. for mysql.
1414 // * prepend dirs to the include_path (phpwiki_dir for faster searches)
1415 // * Pear_DB version logic (awful but needed)
1416 // * fix broken ADODB quote
1417 // * _extract_page_data simplification
1419 // Revision 1.49 2004/11/10 15:29:21 rurban
1420 // * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
1421 // * ACCESS_LOG_SQL: fix cause request not yet initialized
1422 // * WikiDB: moved SQL specific methods upwards
1423 // * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
1424 // fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
1426 // Revision 1.48 2004/11/09 17:11:16 rurban
1427 // * revert to the wikidb ref passing. there's no memory abuse there.
1428 // * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
1429 // store page ids with getPageLinks (GleanDescription) of all existing pages, which
1430 // are also needed at the rendering for linkExistingWikiWord().
1431 // pass options to pageiterator.
1432 // use this cache also for _get_pageid()
1433 // This saves about 8 SELECT count per page (num all pagelinks).
1434 // * fix passing of all page fields to the pageiterator.
1435 // * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
1437 // Revision 1.47 2004/11/06 17:11:42 rurban
1438 // The optimized version doesn't query for pagedata anymore.
1440 // Revision 1.46 2004/11/01 10:43:58 rurban
1441 // seperate PassUser methods into seperate dir (memory usage)
1442 // fix WikiUser (old) overlarge data session
1443 // remove wikidb arg from various page class methods, use global ->_dbi instead
1446 // Revision 1.45 2004/10/14 17:19:17 rurban
1447 // allow most_popular sortby arguments
1449 // Revision 1.44 2004/09/06 08:33:09 rurban
1450 // force explicit mysql auto-incrementing, atomic version
1452 // Revision 1.43 2004/07/10 08:50:24 rurban
1453 // applied patch by Philippe Vanhaesendonck:
1454 // pass column list to iterators so we can FETCH_NUM in all cases.
1455 // bind UPDATE pramas for huge pagedata.
1456 // portable oracle backend
1458 // Revision 1.42 2004/07/09 10:06:50 rurban
1459 // Use backend specific sortby and sortable_columns method, to be able to
1460 // select between native (Db backend) and custom (PageList) sorting.
1461 // Fixed PageList::AddPageList (missed the first)
1462 // Added the author/creator.. name to AllPagesBy...
1463 // display no pages if none matched.
1464 // Improved dba and file sortby().
1465 // Use &$request reference
1467 // Revision 1.41 2004/07/08 21:32:35 rurban
1468 // Prevent from more warnings, minor db and sort optimizations
1470 // Revision 1.40 2004/07/08 16:56:16 rurban
1471 // use the backendType abstraction
1473 // Revision 1.39 2004/07/05 13:56:22 rurban
1474 // sqlite autoincrement fix
1476 // Revision 1.38 2004/07/05 12:57:54 rurban
1477 // add mysql timeout
1479 // Revision 1.37 2004/07/04 10:24:43 rurban
1480 // forgot the expressions
1482 // Revision 1.36 2004/07/03 16:51:06 rurban
1483 // optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
1484 // added atomic mysql REPLACE for PearDB as in ADODB
1485 // fixed _lock_tables typo links => link
1486 // fixes unserialize ADODB bug in line 180
1488 // Revision 1.35 2004/06/28 14:45:12 rurban
1489 // fix adodb_sqlite to have the same dsn syntax as pear, use pconnect if requested
1491 // Revision 1.34 2004/06/28 14:17:38 rurban
1492 // updated DSN parser from Pear. esp. for sqlite
1494 // Revision 1.33 2004/06/27 10:26:02 rurban
1495 // oci8 patch by Philippe Vanhaesendonck + some ADODB notes+fixes
1497 // Revision 1.32 2004/06/25 14:15:08 rurban
1498 // reduce memory footprint by caching only requested pagedate content (improving most page iterators)
1500 // Revision 1.31 2004/06/16 10:38:59 rurban
1501 // Disallow refernces in calls if the declaration is a reference
1502 // ("allow_call_time_pass_reference clean").
1503 // PhpWiki is now allow_call_time_pass_reference = Off clean,
1504 // but several external libraries may not.
1505 // In detail these libs look to be affected (not tested):
1509 // Revision 1.30 2004/06/07 19:31:31 rurban
1510 // fixed ADOOB upgrade: listOfFields()
1512 // Revision 1.29 2004/05/12 10:49:55 rurban
1513 // require_once fix for those libs which are loaded before FileFinder and
1514 // its automatic include_path fix, and where require_once doesn't grok
1515 // dirname(__FILE__) != './lib'
1516 // upgrade fix with PearDB
1517 // navbar.tmpl: remove spaces for IE button alignment
1519 // Revision 1.28 2004/05/06 19:26:16 rurban
1520 // improve stability, trying to find the InlineParser endless loop on sf.net
1522 // remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
1524 // Revision 1.27 2004/05/06 17:30:38 rurban
1525 // CategoryGroup: oops, dos2unix eol
1526 // improved phpwiki_version:
1527 // pre -= .0001 (1.3.10pre: 1030.099)
1528 // -p1 += .001 (1.3.9-p1: 1030.091)
1529 // improved InstallTable for mysql and generic SQL versions and all newer tables so far.
1530 // abstracted more ADODB/PearDB methods for action=upgrade stuff:
1531 // backend->backendType(), backend->database(),
1532 // backend->listOfFields(),
1533 // backend->listOfTables(),
1535 // Revision 1.26 2004/04/26 20:44:35 rurban
1536 // locking table specific for better databases
1538 // Revision 1.25 2004/04/20 00:06:04 rurban
1539 // themable paging support
1541 // Revision 1.24 2004/04/18 01:34:20 rurban
1542 // protect most_popular from sortby=mtime
1544 // Revision 1.23 2004/04/16 14:19:39 rurban
1545 // updated ADODB notes
1548 // (c-file-style: "gnu")
1552 // c-basic-offset: 4
1553 // c-hanging-comment-ender-p: nil
1554 // indent-tabs-mode: nil