2 rcs_id('$Id: ADODB.php,v 1.65 2004-12-10 22:15:00 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.
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 @$hits = (int)$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])) return $cache[$pagename];
274 $page_tbl = $this->_table_names['page_tbl'];
275 $query = sprintf("SELECT id FROM $page_tbl WHERE pagename=%s",
276 $dbh->qstr($pagename));
277 if (! $create_if_missing ) {
278 $row = $dbh->GetRow($query);
279 return $row ? $row[0] : false;
281 $row = $dbh->GetRow($query);
283 //mysql, mysqli or mysqlt
284 if (substr($dbh->databaseType,0,5) == 'mysql') {
285 // have auto-incrementing, atomic version
286 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
288 . " VALUES(NULL,%s)",
289 $dbh->qstr($pagename)));
290 $id = $dbh->_insertid();
292 //$id = $dbh->GenID($page_tbl . 'seq');
293 // Better generic version than with adodob::genID
294 //TODO: Does the DBM has subselects? Then we can do it with select max(id)+1
295 $this->lock(array('page'));
297 $dbh->CommitLock($page_tbl);
298 $row = $dbh->GetRow("SELECT MAX(id) FROM $page_tbl");
300 $rs = $dbh->Execute(sprintf("INSERT INTO $page_tbl"
301 . " (id,pagename,hits)"
302 . " VALUES (%d,%s,0)",
303 $id, $dbh->qstr($pagename)));
304 if ($rs) $dbh->CommitTrans( );
305 else $dbh->RollbackTrans( );
306 $this->unlock(array('page'));
314 function get_latest_version($pagename) {
316 extract($this->_table_names);
317 $row = $dbh->GetRow(sprintf("SELECT latestversion"
318 . " FROM $page_tbl, $recent_tbl"
319 . " WHERE $page_tbl.id=$recent_tbl.id"
320 . " AND pagename=%s",
321 $dbh->qstr($pagename)));
322 return $row ? (int)$row[0] : false;
325 function get_previous_version($pagename, $version) {
327 extract($this->_table_names);
328 // Use SELECTLIMIT for maximum portability
329 $rs = $dbh->SelectLimit(sprintf("SELECT version"
330 . " FROM $version_tbl, $page_tbl"
331 . " WHERE $version_tbl.id=$page_tbl.id"
333 . " AND version < %d"
334 . " ORDER BY version DESC"
335 ,$dbh->qstr($pagename),
338 return $rs->fields ? (int)$rs->fields[0] : false;
344 * @param $version int Which version to get.
346 * @return hash The version data, or false if specified version does not
349 function get_versiondata($pagename, $version, $want_content = false) {
351 extract($this->_table_names);
352 extract($this->_expressions);
354 assert(is_string($pagename) and $pagename != '');
355 assert($version > 0);
357 // FIXME: optimization: sometimes don't get page data?
359 $fields = $this->page_tbl_fields . ", $page_tbl.pagedata AS pagedata"
360 . ', ' . $this->version_tbl_fields;
362 $fields = $this->page_tbl_fields . ", '' AS pagedata"
363 . ", $version_tbl.version AS version, $version_tbl.mtime AS mtime, "
364 . "$version_tbl.minor_edit AS minor_edit, $iscontent AS have_content, "
365 . "$version_tbl.versiondata as versiondata";
367 $row = $dbh->GetRow(sprintf("SELECT $fields"
368 . " FROM $page_tbl, $version_tbl"
369 . " WHERE $page_tbl.id=$version_tbl.id"
372 $dbh->qstr($pagename), $version));
373 return $row ? $this->_extract_version_data_num($row, $want_content) : false;
376 function _extract_version_data_num($row, $want_content) {
381 //$pagename &= $row[1];
382 $data = empty($row[8]) ? array() : $this->_unserialize($row[8]);
383 $data['mtime'] = $row[5];
384 $data['is_minor_edit'] = !empty($row[6]);
386 $data['%content'] = $row[7];
388 $data['%content'] = !empty($row[7]);
390 if (!empty($row[3])) {
391 $data['%pagedata'] = $this->_extract_page_data($row[3], $row[2]);
396 function _extract_version_data_assoc($row) {
401 $data = empty($versiondata) ? array() : $this->_unserialize($versiondata);
402 $data['mtime'] = $mtime;
403 $data['is_minor_edit'] = !empty($minor_edit);
405 $data['%content'] = $content;
406 elseif ($have_content)
407 $data['%content'] = true;
409 $data['%content'] = '';
410 if (!empty($pagedata)) {
411 $data['%pagedata'] = $this->_extract_page_data($pagedata, $hits);
417 * Create a new revision of a page.
419 function set_versiondata($pagename, $version, $data) {
421 $version_tbl = $this->_table_names['version_tbl'];
423 $minor_edit = (int) !empty($data['is_minor_edit']);
424 unset($data['is_minor_edit']);
426 $mtime = (int)$data['mtime'];
427 unset($data['mtime']);
428 assert(!empty($mtime));
430 @$content = (string) $data['%content'];
431 unset($data['%content']);
432 unset($data['%pagedata']);
434 $this->lock(array('page','recent','version','nonempty'));
436 $dbh->CommitLock($version_tbl);
437 $id = $this->_get_pageid($pagename, true);
438 $backend_type = $this->backendType();
439 // optimize: mysql can do this with one REPLACE INTO.
440 if (substr($backend_type,0,5) == 'mysql') {
441 $rs = $dbh->Execute(sprintf("REPLACE INTO $version_tbl"
442 . " (id,version,mtime,minor_edit,content,versiondata)"
443 . " VALUES(%d,%d,%d,%d,%s,%s)",
444 $id, $version, $mtime, $minor_edit,
445 $dbh->qstr($content),
446 $dbh->qstr($this->_serialize($data))));
448 $dbh->Execute(sprintf("DELETE FROM $version_tbl"
449 . " WHERE id=%d AND version=%d",
451 $rs = $dbh->Execute("INSERT INTO $version_tbl"
452 . " (id,version,mtime,minor_edit,content,versiondata)"
453 . " VALUES(?,?,?,?,?,?)",
454 array($id, $version, $mtime, $minor_edit,
455 $content, $this->_serialize($data)));
457 $this->_update_recent_table($id);
458 $this->_update_nonempty_table($id);
459 if ($rs) $dbh->CommitTrans( );
460 else $dbh->RollbackTrans( );
461 $this->unlock(array('page','recent','version','nonempty'));
465 * Delete an old revision of a page.
467 function delete_versiondata($pagename, $version) {
469 extract($this->_table_names);
471 $this->lock(array('version'));
472 if ( ($id = $this->_get_pageid($pagename)) ) {
473 $dbh->Execute("DELETE FROM $version_tbl"
474 . " WHERE id=$id AND version=$version");
475 $this->_update_recent_table($id);
476 // This shouldn't be needed (as long as the latestversion
477 // never gets deleted.) But, let's be safe.
478 $this->_update_nonempty_table($id);
480 $this->unlock(array('version'));
484 * Delete page from the database with backup possibility.
485 * i.e save_page('') and DELETE nonempty id
487 * deletePage increments latestversion in recent to a non-existent version,
488 * and removes the nonempty row,
489 * so that get_latest_version returns id+1 and get_previous_version returns prev id
490 * and page->exists returns false.
492 function delete_page($pagename) {
494 extract($this->_table_names);
497 $dbh->CommitLock($recent_tbl);
498 if (($id = $this->_get_pageid($pagename, false)) === false) {
499 $dbh->RollbackTrans( );
503 $user =& $GLOBALS['request']->_user;
504 $meta = array('author' => $user->getId(),
505 'author_id' => $user->getAuthenticatedId(),
507 $this->lock(array('version','recent','nonempty','page','link'));
508 $version = $this->get_latest_version($pagename);
509 if ($dbh->Execute("UPDATE $recent_tbl SET latestversion=latestversion+1,latestmajor=latestversion+1,latestminor=NULL WHERE id=$id")
510 and $dbh->Execute("INSERT INTO $version_tbl"
511 . " (id,version,mtime,minor_edit,content,versiondata)"
512 . " VALUES(?,?,?,?,?,?)",
513 array($id, $version+1, $mtime, 0,
514 '', $this->_serialize($meta)))
515 and $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id")
516 and $this->set_links($pagename, false)
517 // need to keep perms and LOCKED, otherwise you can reset the perm
518 // by action=remove and re-create it with default perms
519 //and $dbh->Execute("UPDATE $page_tbl SET pagedata='' WHERE id=$id") // keep hits but delete meta-data
522 $this->unlock(array('version','recent','nonempty','page','link'));
523 $dbh->CommitTrans( );
526 $this->unlock(array('version','recent','nonempty','page','link'));
527 $dbh->RollbackTrans( );
532 function purge_page($pagename) {
534 extract($this->_table_names);
536 $this->lock(array('version','recent','nonempty','page','link'));
537 if ( ($id = $this->_get_pageid($pagename, false)) ) {
538 $dbh->Execute("DELETE FROM $version_tbl WHERE id=$id");
539 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id");
540 $dbh->Execute("DELETE FROM $nonempty_tbl WHERE id=$id");
541 $this->set_links($pagename, false);
542 $row = $dbh->GetRow("SELECT COUNT(*) FROM $link_tbl WHERE linkto=$id");
543 if ($row and $row[0]) {
544 // We're still in the link table (dangling link) so we can't delete this
546 $dbh->Execute("UPDATE $page_tbl SET hits=0, pagedata='' WHERE id=$id");
550 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id");
554 $result = -1; // already purged or not existing
556 $this->unlock(array('version','recent','nonempty','page','link'));
561 // The only thing we might be interested in updating which we can
562 // do fast in the flags (minor_edit). I think the default
563 // update_versiondata will work fine...
564 //function update_versiondata($pagename, $version, $data) {
567 function set_links($pagename, $links) {
568 // Update link table.
569 // FIXME: optimize: mysql can do this all in one big INSERT/REPLACE.
572 extract($this->_table_names);
574 $this->lock(array('link'));
575 $pageid = $this->_get_pageid($pagename, true);
578 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
579 foreach($links as $link) {
580 if (isset($linkseen[$link]))
582 $linkseen[$link] = true;
583 $linkid = $this->_get_pageid($link, true);
584 $dbh->Execute("INSERT INTO $link_tbl (linkfrom, linkto)"
585 . " VALUES ($pageid, $linkid)");
588 // purge page table: delete all non-referenced pages
589 // for all previously linked pages...
590 foreach ($dbh->getRow("SELECT $link_tbl.linkto as id FROM $link_tbl WHERE linkfrom=$pageid") as $id) {
591 // ...check if the page is empty and has no version
592 if ($dbh->getRow("SELECT $page_tbl.id FROM $page_tbl LEFT JOIN $nonempty_tbl USING (id) "
593 ." LEFT JOIN $version_tbl USING (id)"
594 ." WHERE ISNULL($nonempty_tbl.id) AND ISNULL($version_tbl.id) AND $page_tbl.id=$id")) {
595 $dbh->Execute("DELETE FROM $page_tbl WHERE id=$id"); // this purges the link
596 $dbh->Execute("DELETE FROM $recent_tbl WHERE id=$id"); // may fail
599 $dbh->Execute("DELETE FROM $link_tbl WHERE linkfrom=$pageid");
601 $this->unlock(array('link'));
606 * Find pages which link to or are linked from a page.
608 * Optimization: save request->_dbi->_iwpcache[] to avoid further iswikipage checks
609 * (linkExistingWikiWord or linkUnknownWikiWord)
610 * This is called on every page header GleanDescription, so we can store all the existing links.
612 function get_links($pagename, $reversed=true, $include_empty=false,
613 $sortby=false, $limit=false, $exclude='') {
615 extract($this->_table_names);
618 list($have,$want) = array('linkee', 'linker');
620 list($have,$want) = array('linker', 'linkee');
621 $orderby = $this->sortby($sortby, 'db', array('pagename'));
622 if ($orderby) $orderby = ' ORDER BY $want.' . $orderby;
623 if ($exclude) // array of pagenames
624 $exclude = " AND $want.pagename NOT IN ".$this->_sql_set($exclude);
628 $qpagename = $dbh->qstr($pagename);
629 // removed ref to FETCH_MODE in next line
630 $result = $dbh->Execute("SELECT $want.id AS id, $want.pagename AS pagename,"
631 . " $want.hits AS hits"
632 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee"
633 . (!$include_empty ? ", $nonempty_tbl" : '')
634 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
635 . " AND $have.pagename=$qpagename"
636 . (!$include_empty ? " AND $nonempty_tbl.id=$want.id" : "")
637 //. " GROUP BY $want.id"
640 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
644 * Find if a page links to another page
646 function exists_link($pagename, $link, $reversed=false) {
648 extract($this->_table_names);
651 list($have, $want) = array('linkee', 'linker');
653 list($have, $want) = array('linker', 'linkee');
654 $qpagename = $dbh->qstr($pagename);
655 $qlink = $dbh->qstr($link);
656 $row = $dbh->GetRow("SELECT IF($want.pagename,1,0)"
657 . " FROM $link_tbl, $page_tbl linker, $page_tbl linkee, $nonempty_tbl"
658 . " WHERE linkfrom=linker.id AND linkto=linkee.id"
659 . " AND $have.pagename=$qpagename"
660 . " AND $want.pagename=$qlink"
665 function get_all_pages($include_empty=false, $sortby=false, $limit=false, $exclude='') {
667 extract($this->_table_names);
668 $orderby = $this->sortby($sortby, 'db');
669 if ($orderby) $orderby = ' ORDER BY ' . $orderby;
670 if ($exclude) // array of pagenames
671 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
675 //$dbh->SetFetchMode(ADODB_FETCH_ASSOC);
676 if (strstr($orderby, 'mtime ')) { // was ' mtime'
677 if ($include_empty) {
679 . $this->page_tbl_fields
680 ." FROM $page_tbl, $recent_tbl, $version_tbl"
681 . " WHERE $page_tbl.id=$recent_tbl.id"
682 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
688 . $this->page_tbl_fields
689 . " FROM $nonempty_tbl, $page_tbl, $recent_tbl, $version_tbl"
690 . " WHERE $nonempty_tbl.id=$page_tbl.id"
691 . " AND $page_tbl.id=$recent_tbl.id"
692 . " AND $page_tbl.id=$version_tbl.id AND latestversion=version"
697 if ($include_empty) {
699 . $this->page_tbl_fields
701 . ($exclude ? " WHERE $exclude" : '')
705 . $this->page_tbl_fields
706 . " FROM $nonempty_tbl, $page_tbl"
707 . " WHERE $nonempty_tbl.id=$page_tbl.id"
713 // extract from,count from limit
714 list($offset,$count) = $this->limit($limit);
715 $result = $dbh->SelectLimit($sql, $count, $offset);
717 $result = $dbh->Execute($sql);
719 //$dbh->SetFetchMode(ADODB_FETCH_NUM);
720 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
726 function text_search($search, $fullsearch=false) {
728 extract($this->_table_names);
730 $table = "$nonempty_tbl, $page_tbl";
731 $join_clause = "$nonempty_tbl.id=$page_tbl.id";
732 $fields = $this->page_tbl_fields;
733 $field_list = $this->page_tbl_field_list;
734 $searchobj = new WikiDB_backend_ADODB_search($search, $dbh);
737 $table .= ", $recent_tbl";
738 $join_clause .= " AND $page_tbl.id=$recent_tbl.id";
740 $table .= ", $version_tbl";
741 $join_clause .= " AND $page_tbl.id=$version_tbl.id AND latestversion=version";
743 $fields .= ",$page_tbl.pagedata as pagedata," . $this->version_tbl_fields;
744 $field_list = array_merge($field_list, array('pagedata'), $this->version_tbl_field_list);
745 $callback = new WikiMethodCb($searchobj, "_fulltext_match_clause");
747 $callback = new WikiMethodCb($searchobj, "_pagename_match_clause");
750 $search_clause = $search->makeSqlClauseObj($callback);
751 $result = $dbh->Execute("SELECT $fields FROM $table"
752 . " WHERE $join_clause"
753 . " AND ($search_clause)"
754 . " ORDER BY pagename");
755 return new WikiDB_backend_ADODB_iter($this, $result, $field_list);
758 function _sql_match_clause($word) {
759 //not sure if we need this. ADODB may do it for us
760 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word);
762 // (we need it for at least % and _ --- they're the wildcard characters
763 // for the LIKE operator, and we need to quote them if we're searching
764 // for literal '%'s or '_'s. --- I'm not sure about \, but it seems to
766 $word = $this->_dbh->qstr("%".strtolower($word)."%");
767 $page_tbl = $this->_table_names['page_tbl'];
768 return "LOWER($page_tbl.pagename) LIKE $word";
770 function _fullsearch_sql_match_clause($word) {
771 $word = preg_replace('/(?=[%_\\\\])/', "\\", $word); //not sure if we need this
773 $word = $this->_dbh->qstr("%".strtolower($word)."%");
774 $page_tbl = $this->_table_names['page_tbl'];
775 return "LOWER($page_tbl.pagename) LIKE $word OR content LIKE $word";
780 * TODO: efficiently handle wildcards exclusion: exclude=Php* => 'Php%',
781 * not sets. See above, but the above methods find too much.
782 * This is only for already resolved wildcards:
783 * " WHERE $page_tbl.pagename NOT IN ".$this->_sql_set(array('page1','page2'));
785 function _sql_set(&$pagenames) {
787 foreach ($pagenames as $p) {
788 $s .= ($this->_dbh->qstr($p).",");
790 return substr($s,0,-1).")";
794 * Find highest or lowest hit counts.
796 function most_popular($limit=0, $sortby='-hits') {
798 extract($this->_table_names);
805 $where = " AND hits > 0";
807 if ($sortby != '-hits') {
808 if ($order = $this->sortby($sortby, 'db')) $orderby = " ORDER BY " . $order;
811 $orderby = " ORDER BY hits $order";
812 $limit = $limit ? $limit : -1;
814 $result = $dbh->SelectLimit("SELECT "
815 . $this->page_tbl_fields
816 . " FROM $nonempty_tbl, $page_tbl"
817 . " WHERE $nonempty_tbl.id=$page_tbl.id"
820 return new WikiDB_backend_ADODB_iter($this, $result, $this->page_tbl_field_list);
824 * Find recent changes.
826 function most_recent($params) {
829 $include_minor_revisions = false;
830 $exclude_major_revisions = false;
831 $include_all_revisions = false;
835 extract($this->_table_names);
839 $pick[] = "mtime >= $since";
841 if ($include_all_revisions) {
842 // Include all revisions of each page.
843 $table = "$page_tbl, $version_tbl";
844 $join_clause = "$page_tbl.id=$version_tbl.id";
846 if ($exclude_major_revisions) {
847 // Include only minor revisions
848 $pick[] = "minor_edit <> 0";
850 elseif (!$include_minor_revisions) {
851 // Include only major revisions
852 $pick[] = "minor_edit = 0";
856 $table = "$page_tbl, $recent_tbl";
857 $join_clause = "$page_tbl.id=$recent_tbl.id";
858 $table .= ", $version_tbl";
859 $join_clause .= " AND $version_tbl.id=$page_tbl.id";
861 if ($exclude_major_revisions) {
862 // Include only most recent minor revision
863 $pick[] = 'version=latestminor';
865 elseif (!$include_minor_revisions) {
866 // Include only most recent major revision
867 $pick[] = 'version=latestmajor';
870 // Include only the latest revision (whether major or minor).
871 $pick[] ='version=latestversion';
879 $limit = $limit ? $limit : -1;
880 $where_clause = $join_clause;
882 $where_clause .= " AND " . join(" AND ", $pick);
884 // FIXME: use SQL_BUFFER_RESULT for mysql?
885 // Use SELECTLIMIT for portability
886 $result = $dbh->SelectLimit("SELECT "
887 . $this->page_tbl_fields . ", " . $this->version_tbl_fields
889 . " WHERE $where_clause"
890 . " ORDER BY mtime $order",
892 //$result->fields['version'] = $result->fields[6];
893 return new WikiDB_backend_ADODB_iter($this, $result,
894 array_merge($this->page_tbl_field_list, $this->version_tbl_field_list));
898 * Find referenced empty pages.
900 function wanted_pages($exclude_from='', $exclude='', $sortby=false, $limit=false) {
902 extract($this->_table_names);
903 if ($orderby = $this->sortby($sortby, 'db', array('pagename','wantedfrom')))
904 $orderby = 'ORDER BY ' . $orderby;
906 if ($exclude_from) // array of pagenames
907 $exclude_from = " AND linked.pagename NOT IN ".$this->_sql_set($exclude_from);
908 if ($exclude) // array of pagenames
909 $exclude = " AND $page_tbl.pagename NOT IN ".$this->_sql_set($exclude);
911 $limit = $limit ? $limit : -1;
913 all empty pages, independent of linkstatus:
914 select pagename as empty from page left join nonempty using(id) where isnull(nonempty.id);
915 only all empty pages, which have a linkto:
916 select page.pagename, linked.pagename as wantedfrom from link, page as linked
917 left join page on(link.linkto=page.id) left join nonempty on(link.linkto=nonempty.id)
918 where isnull(nonempty.id) and linked.id=link.linkfrom;
920 $sql = "SELECT $page_tbl.pagename,linked.pagename as wantedfrom"
921 . " FROM $link_tbl,$page_tbl as linked "
922 . " LEFT JOIN $page_tbl ON($link_tbl.linkto=$page_tbl.id)"
923 . " LEFT JOIN $nonempty_tbl ON($link_tbl.linkto=$nonempty_tbl.id)"
924 . " WHERE ISNULL($nonempty_tbl.id) AND linked.id=$link_tbl.linkfrom"
928 $result = $dbh->SelectLimit($sql, $limit);
929 return new WikiDB_backend_ADODB_iter($this, $result, array('pagename','wantedfrom'));
933 * Rename page in the database.
935 function rename_page($pagename, $to) {
937 extract($this->_table_names);
939 $this->lock(array('page'));
940 if ( ($id = $this->_get_pageid($pagename, false)) ) {
941 if ($new = $this->_get_pageid($to, false)) {
943 //this page does not exist (already verified before), but exists in the page table.
944 //so we delete this page.
945 $dbh->query(sprintf("DELETE FROM $page_tbl WHERE id=$id",
948 $dbh->query(sprintf("UPDATE $page_tbl SET pagename=%s WHERE id=$id",
951 $this->unlock(array('page'));
955 function _update_recent_table($pageid = false) {
957 extract($this->_table_names);
958 extract($this->_expressions);
960 $pageid = (int)$pageid;
962 // optimize: mysql can do this with one REPLACE INTO.
963 $backend_type = $this->backendType();
964 if (substr($backend_type,0,5) == 'mysql') {
965 $dbh->Execute("REPLACE INTO $recent_tbl"
966 . " (id, latestversion, latestmajor, latestminor)"
967 . " SELECT id, $maxversion, $maxmajor, $maxminor"
968 . " FROM $version_tbl"
969 . ( $pageid ? " WHERE id=$pageid" : "")
972 $this->lock(array('recent'));
973 $dbh->Execute("DELETE FROM $recent_tbl"
974 . ( $pageid ? " WHERE id=$pageid" : ""));
975 $dbh->Execute( "INSERT INTO $recent_tbl"
976 . " (id, latestversion, latestmajor, latestminor)"
977 . " SELECT id, $maxversion, $maxmajor, $maxminor"
978 . " FROM $version_tbl"
979 . ( $pageid ? " WHERE id=$pageid" : "")
981 $this->unlock(array('recent'));
985 function _update_nonempty_table($pageid = false) {
987 extract($this->_table_names);
988 extract($this->_expressions);
990 $pageid = (int)$pageid;
992 // Optimize: mysql can do this with one REPLACE INTO.
993 // FIXME: This treally should be moved into ADODB_mysql.php but
994 // then it must be duplicated for mysqli and mysqlt also.
995 $backend_type = $this->backendType();
996 if (substr($backend_type,0,5) == 'mysql') {
997 $dbh->Execute("REPLACE INTO $nonempty_tbl (id)"
998 . " SELECT $recent_tbl.id"
999 . " FROM $recent_tbl, $version_tbl"
1000 . " WHERE $recent_tbl.id=$version_tbl.id"
1001 . " AND version=latestversion"
1002 // We have some specifics here (Oracle)
1003 // . " AND content<>''"
1004 . " AND content $notempty"
1005 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
1007 extract($this->_expressions);
1008 $this->lock(array('nonempty'));
1009 $dbh->Execute("DELETE FROM $nonempty_tbl"
1010 . ( $pageid ? " WHERE id=$pageid" : ""));
1011 $dbh->Execute("INSERT INTO $nonempty_tbl (id)"
1012 . " SELECT $recent_tbl.id"
1013 . " FROM $recent_tbl, $version_tbl"
1014 . " WHERE $recent_tbl.id=$version_tbl.id"
1015 . " AND version=latestversion"
1016 // We have some specifics here (Oracle)
1017 //. " AND content<>''"
1018 . " AND content $notempty"
1019 . ( $pageid ? " AND $recent_tbl.id=$pageid" : ""));
1020 $this->unlock(array('nonempty'));
1026 * Grab a write lock on the tables in the SQL database.
1028 * Calls can be nested. The tables won't be unlocked until
1029 * _unlock_database() is called as many times as _lock_database().
1033 function lock($tables, $write_lock = true) {
1034 $this->_dbh->StartTrans();
1035 if ($this->_lock_count++ == 0) {
1036 $this->_current_lock = $tables;
1037 $this->_lock_tables($tables, $write_lock);
1042 * Overridden by non-transaction safe backends.
1044 function _lock_tables($tables, $write_lock) {
1045 return $this->_current_lock;
1049 * Release a write lock on the tables in the SQL database.
1053 * @param $force boolean Unlock even if not every call to lock() has been matched
1054 * by a call to unlock().
1056 * @see _lock_database
1058 function unlock($tables = false, $force = false) {
1059 if ($this->_lock_count == 0) {
1060 $this->_dbh->CompleteTrans(! $force);
1061 $this->_current_lock = false;
1064 if (--$this->_lock_count <= 0 || $force) {
1065 $this->_unlock_tables($tables);
1066 $this->_current_lock = false;
1067 $this->_lock_count = 0;
1069 $this->_dbh->CompleteTrans(! $force);
1073 * overridden by non-transaction safe backends
1075 function _unlock_tables($tables, $write_lock) {
1082 function _serialize($data) {
1085 assert(is_array($data));
1086 return serialize($data);
1092 function _unserialize($data) {
1093 return empty($data) ? array() : unserialize($data);
1096 /* some variables and functions for DB backend abstraction (action=upgrade) */
1097 function database () {
1098 return $this->_dbh->database;
1100 function backendType() {
1101 return $this->_dbh->databaseType;
1103 function connection() {
1104 return $this->_dbh->_connectionID;
1107 function listOfTables() {
1108 return $this->_dbh->MetaTables();
1110 function listOfFields($database,$table) {
1111 $field_list = array();
1112 foreach ($this->_dbh->MetaColumns($table,false) as $field) {
1113 $field_list[] = $field->name;
1120 class WikiDB_backend_ADODB_generic_iter
1121 extends WikiDB_backend_iterator
1123 function WikiDB_backend_ADODB_generic_iter($backend, $query_result, $field_list = NULL) {
1124 $this->_backend = &$backend;
1125 $this->_result = $query_result;
1127 if (is_null($field_list)) {
1128 // No field list passed, retrieve from DB
1129 // WikiLens is using the iterator behind the scene
1130 $field_list = array();
1131 $fields = $query_result->FieldCount();
1132 for ($i = 0; $i < $fields ; $i++) {
1133 $field_info = $query_result->FetchField($i);
1134 array_push($field_list, $field_info->name);
1138 $this->_fields = $field_list;
1142 if (!$this->_result) {
1145 $count = $this->_result->numRows();
1146 //$this->_result->Close();
1151 $result = &$this->_result;
1152 $backend = &$this->_backend;
1153 if (!$result || $result->EOF) {
1158 // Convert array to hash
1160 $rec_num = $result->fields;
1161 foreach ($this->_fields as $field) {
1162 $rec_assoc[$field] = $rec_num[$i++];
1164 // check if the cache can be populated here?
1166 $result->MoveNext();
1171 if ($this->_result) {
1172 /* call mysql_free_result($this->_queryID) */
1173 $this->_result->Close();
1174 $this->_result = false;
1179 class WikiDB_backend_ADODB_iter
1180 extends WikiDB_backend_ADODB_generic_iter
1183 $result = &$this->_result;
1184 $backend = &$this->_backend;
1185 if (!$result || $result->EOF) {
1190 // Convert array to hash
1192 $rec_num = $result->fields;
1193 foreach ($this->_fields as $field) {
1194 $rec_assoc[$field] = $rec_num[$i++];
1197 $result->MoveNext();
1198 if (isset($rec_assoc['pagedata']))
1199 $rec_assoc['pagedata'] = $backend->_extract_page_data($rec_assoc['pagedata'], $rec_assoc['hits']);
1200 if (!empty($rec_assoc['version'])) {
1201 $rec_assoc['versiondata'] = $backend->_extract_version_data_assoc($rec_assoc);
1207 class WikiDB_backend_ADODB_search
1208 extends WikiDB_backend_search
1210 function WikiDB_backend_ADODB_search(&$search, &$dbh) {
1211 $this->_dbh =& $dbh;
1212 $this->_case_exact = $search->_case_exact;
1214 function _pagename_match_clause($node) {
1215 $word = $node->sql();
1216 return $this->_case_exact
1217 ? "pagename LIKE '$word'"
1218 : "LOWER(pagename) LIKE '$word'";
1220 function _fulltext_match_clause($node) {
1221 $word = $node->sql();
1222 return $this->_case_exact
1223 ? "pagename LIKE '$word' OR content LIKE '$word'"
1224 : "LOWER(pagename) LIKE '$word' OR content LIKE '$word'";
1228 // Following function taken from Pear::DB (prev. from adodb-pear.inc.php).
1229 // Eventually, change index.php to provide the relevant information
1232 * Parse a data source name.
1234 * Additional keys can be added by appending a URI query string to the
1237 * The format of the supplied DSN is in its fullest form:
1239 * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true
1242 * Most variations are allowed:
1244 * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644
1245 * phptype://username:password@hostspec/database_name
1246 * phptype://username:password@hostspec
1247 * phptype://username@hostspec
1248 * phptype://hostspec/database
1249 * phptype://hostspec
1254 * @param string $dsn Data Source Name to be parsed
1256 * @return array an associative array with the following keys:
1257 * + phptype: Database backend used in PHP (mysql, odbc etc.)
1258 * + dbsyntax: Database used with regards to SQL syntax etc.
1259 * + protocol: Communication protocol to use (tcp, unix etc.)
1260 * + hostspec: Host specification (hostname[:port])
1261 * + database: Database to use on the DBMS server
1262 * + username: User name for login
1263 * + password: Password for login
1265 * @author Tomas V.V.Cox <cox@idecnet.com>
1267 function parseDSN($dsn)
1271 'dbsyntax' => false,
1272 'username' => false,
1273 'password' => false,
1274 'protocol' => false,
1275 'hostspec' => false,
1278 'database' => false,
1281 if (is_array($dsn)) {
1282 $dsn = array_merge($parsed, $dsn);
1283 if (!$dsn['dbsyntax']) {
1284 $dsn['dbsyntax'] = $dsn['phptype'];
1289 // Find phptype and dbsyntax
1290 if (($pos = strpos($dsn, '://')) !== false) {
1291 $str = substr($dsn, 0, $pos);
1292 $dsn = substr($dsn, $pos + 3);
1298 // Get phptype and dbsyntax
1299 // $str => phptype(dbsyntax)
1300 if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
1301 $parsed['phptype'] = $arr[1];
1302 $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
1304 $parsed['phptype'] = $str;
1305 $parsed['dbsyntax'] = $str;
1312 // Get (if found): username and password
1313 // $dsn => username:password@protocol+hostspec/database
1314 if (($at = strrpos($dsn,'@')) !== false) {
1315 $str = substr($dsn, 0, $at);
1316 $dsn = substr($dsn, $at + 1);
1317 if (($pos = strpos($str, ':')) !== false) {
1318 $parsed['username'] = rawurldecode(substr($str, 0, $pos));
1319 $parsed['password'] = rawurldecode(substr($str, $pos + 1));
1321 $parsed['username'] = rawurldecode($str);
1325 // Find protocol and hostspec
1327 // $dsn => proto(proto_opts)/database
1328 if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
1330 $proto_opts = $match[2] ? $match[2] : false;
1333 // $dsn => protocol+hostspec/database (old format)
1335 if (strpos($dsn, '+') !== false) {
1336 list($proto, $dsn) = explode('+', $dsn, 2);
1338 if (strpos($dsn, '/') !== false) {
1339 list($proto_opts, $dsn) = explode('/', $dsn, 2);
1346 // process the different protocol options
1347 $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
1348 $proto_opts = rawurldecode($proto_opts);
1349 if ($parsed['protocol'] == 'tcp') {
1350 if (strpos($proto_opts, ':') !== false) {
1351 list($parsed['hostspec'], $parsed['port']) = explode(':', $proto_opts);
1353 $parsed['hostspec'] = $proto_opts;
1355 } elseif ($parsed['protocol'] == 'unix') {
1356 $parsed['socket'] = $proto_opts;
1359 // Get dabase if any
1363 if (($pos = strpos($dsn, '?')) === false) {
1364 $parsed['database'] = $dsn;
1365 // /database?param1=value1¶m2=value2
1367 $parsed['database'] = substr($dsn, 0, $pos);
1368 $dsn = substr($dsn, $pos + 1);
1369 if (strpos($dsn, '&') !== false) {
1370 $opts = explode('&', $dsn);
1371 } else { // database?param1=value1
1372 $opts = array($dsn);
1374 foreach ($opts as $opt) {
1375 list($key, $value) = explode('=', $opt);
1376 if (!isset($parsed[$key])) {
1377 // don't allow params overwrite
1378 $parsed[$key] = rawurldecode($value);
1387 // $Log: not supported by cvs2svn $
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