360f2e6878
- do not display serverside events in calendar - include gems in item comparison .. also parse their stats in setup - filters use conditions and are more restrictive - changed DBSimple version so it uses mysqli (mysql is deprecated as of php 5.5) - moved each filter class to matching type; file for baseType and BaseFilter - baseType querys are somewhat modular, trying to avoid ridiculous joins that WILL occur sometimes (especially with items) as far as possible
288 lines
No EOL
9.3 KiB
PHP
288 lines
No EOL
9.3 KiB
PHP
<?php
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/**
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* DbSimple_Ibase: Interbase/Firebird database.
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* (C) Dk Lab, http://en.dklab.ru
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* See http://www.gnu.org/copyleft/lesser.html
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*
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* Placeholders are emulated because of logging purposes.
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*
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* @author Dmitry Koterov, http://forum.dklab.ru/users/DmitryKoterov/
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* @author Konstantin Zhinko, http://forum.dklab.ru/users/KonstantinGinkoTit/
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*
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* @version 2.x $Id$
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*/
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require_once dirname(__FILE__) . '/Database.php';
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/**
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* Best transaction parameters for script queries.
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* They never give us update conflicts (unlike others)!
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* Used by default.
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*/
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define('IBASE_BEST_TRANSACTION', IBASE_COMMITTED + IBASE_WAIT + IBASE_REC_VERSION);
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define('IBASE_BEST_FETCH', IBASE_UNIXTIME);
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/**
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* Database class for Interbase/Firebird.
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*/
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class DbSimple_Ibase extends DbSimple_Database
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{
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var $DbSimple_Ibase_BEST_TRANSACTION = IBASE_BEST_TRANSACTION;
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var $DbSimple_Ibase_USE_NATIVE_PHOLDERS = true;
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var $fetchFlags = IBASE_BEST_FETCH;
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var $link;
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var $trans;
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var $prepareCache = array();
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/**
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* constructor(string $dsn)
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* Connect to Interbase/Firebird.
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*/
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function DbSimple_Ibase($dsn)
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{
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$p = DbSimple_Database::parseDSN($dsn);
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if (!is_callable('ibase_connect')) {
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return $this->_setLastError("-1", "Interbase/Firebird extension is not loaded", "ibase_connect");
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}
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$ok = $this->link = ibase_connect(
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$p['host'] . (empty($p['port'])? "" : ":".$p['port']) .':'.preg_replace('{^/}s', '', $p['path']),
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$p['user'],
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$p['pass'],
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isset($p['CHARSET']) ? $p['CHARSET'] : 'win1251',
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isset($p['BUFFERS']) ? $p['BUFFERS'] : 0,
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isset($p['DIALECT']) ? $p['DIALECT'] : 3,
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isset($p['ROLE']) ? $p['ROLE'] : ''
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);
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if (isset($p['TRANSACTION'])) $this->DbSimple_Ibase_BEST_TRANSACTION = eval($p['TRANSACTION'].";");
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$this->_resetLastError();
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if (!$ok) return $this->_setDbError('ibase_connect()');
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}
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function _performEscape($s, $isIdent=false)
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{
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if (!$isIdent)
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return "'" . str_replace("'", "''", $s) . "'";
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else
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return '"' . str_replace('"', '_', $s) . '"';
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}
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function _performTransaction($parameters=null)
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{
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if ($parameters === null) $parameters = $this->DbSimple_Ibase_BEST_TRANSACTION;
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$this->trans = @ibase_trans($parameters, $this->link);
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}
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function _performNewBlob($blobid=null)
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{
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return new DbSimple_Ibase_Blob($this, $blobid);
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}
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function _performGetBlobFieldNames($result)
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{
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$blobFields = array();
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for ($i=ibase_num_fields($result)-1; $i>=0; $i--) {
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$info = ibase_field_info($result, $i);
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if ($info['type'] === "BLOB") $blobFields[] = $info['name'];
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}
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return $blobFields;
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}
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function _performGetPlaceholderIgnoreRe()
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{
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return '
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" (?> [^"\\\\]+|\\\\"|\\\\)* " |
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\' (?> [^\'\\\\]+|\\\\\'|\\\\)* \' |
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` (?> [^`]+ | ``)* ` | # backticks
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/\* .*? \*/ # comments
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';
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}
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function _performCommit()
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{
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if (!is_resource($this->trans)) return false;
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$result = @ibase_commit($this->trans);
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if (true === $result) {
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$this->trans = null;
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}
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return $result;
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}
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function _performRollback()
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{
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if (!is_resource($this->trans)) return false;
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$result = @ibase_rollback($this->trans);
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if (true === $result) {
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$this->trans = null;
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}
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return $result;
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}
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function _performTransformQuery(&$queryMain, $how)
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{
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// If we also need to calculate total number of found rows...
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switch ($how) {
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// Prepare total calculation (if possible)
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case 'CALC_TOTAL':
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// Not possible
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return true;
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// Perform total calculation.
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case 'GET_TOTAL':
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// TODO: GROUP BY ... -> COUNT(DISTINCT ...)
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$re = '/^
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(?> -- [^\r\n]* | \s+)*
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(\s* SELECT \s+) #1
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((?:FIRST \s+ \S+ \s+ (?:SKIP \s+ \S+ \s+)? )?) #2
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(.*?) #3
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(\s+ FROM \s+ .*?) #4
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((?:\s+ ORDER \s+ BY \s+ .*)?) #5
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$/six';
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$m = null;
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if (preg_match($re, $queryMain[0], $m)) {
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$queryMain[0] = $m[1] . $this->_fieldList2Count($m[3]) . " AS C" . $m[4];
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$skipHead = substr_count($m[2], '?');
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if ($skipHead) array_splice($queryMain, 1, $skipHead);
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$skipTail = substr_count($m[5], '?');
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if ($skipTail) array_splice($queryMain, -$skipTail);
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}
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return true;
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}
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return false;
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}
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function _performQuery($queryMain)
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{
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$this->_lastQuery = $queryMain;
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$this->_expandPlaceholders($queryMain, $this->DbSimple_Ibase_USE_NATIVE_PHOLDERS);
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$hash = $queryMain[0];
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if (!isset($this->prepareCache[$hash])) {
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$this->prepareCache[$hash] = @ibase_prepare((is_resource($this->trans) ? $this->trans : $this->link), $queryMain[0]);
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} else {
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// Prepare cache hit!
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}
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$prepared = $this->prepareCache[$hash];
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if (!$prepared) return $this->_setDbError($queryMain[0]);
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$queryMain[0] = $prepared;
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$result = @call_user_func_array('ibase_execute', $queryMain);
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// ATTENTION!!!
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// WE MUST save prepared ID (stored in $prepared variable) somewhere
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// before returning $result because of ibase destructor. Now it is done
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// by $this->prepareCache. When variable $prepared goes out of scope, it
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// is destroyed, and memory for result also freed by PHP. Totally we
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// got "Invalud statement handle" error message.
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if ($result === false) return $this->_setDbError($queryMain[0]);
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if (!is_resource($result)) {
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// Non-SELECT queries return number of affected rows, SELECT - resource.
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return @ibase_affected_rows((is_resource($this->trans) ? $this->trans : $this->link));
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}
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return $result;
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}
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function _performFetch($result)
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{
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// Select fetch mode.
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$flags = $this->fetchFlags;
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if (empty($this->attributes['BLOB_OBJ'])) $flags = $flags | IBASE_TEXT;
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else $flags = $flags & ~IBASE_TEXT;
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$row = @ibase_fetch_assoc($result, $flags);
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if (ibase_errmsg()) return $this->_setDbError($this->_lastQuery);
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return $row;
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}
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function _setDbError($query)
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{
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return $this->_setLastError(ibase_errcode(), ibase_errmsg(), $query);
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}
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}
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class DbSimple_Ibase_Blob implements DbSimple_Blob
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{
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var $blob; // resourse link
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var $id;
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var $database;
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function DbSimple_Ibase_Blob(&$database, $id=null)
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{
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$this->database =& $database;
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$this->id = $id;
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$this->blob = null;
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}
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function read($len)
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{
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if ($this->id === false) return ''; // wr-only blob
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if (!($e=$this->_firstUse())) return $e;
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$data = @ibase_blob_get($this->blob, $len);
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if ($data === false) return $this->_setDbError('read');
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return $data;
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}
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function write($data)
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{
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if (!($e=$this->_firstUse())) return $e;
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$ok = @ibase_blob_add($this->blob, $data);
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if ($ok === false) return $this->_setDbError('add data to');
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return true;
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}
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function close()
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{
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if (!($e=$this->_firstUse())) return $e;
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if ($this->blob) {
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$id = @ibase_blob_close($this->blob);
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if ($id === false) return $this->_setDbError('close');
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$this->blob = null;
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} else {
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$id = null;
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}
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return $this->id ? $this->id : $id;
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}
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function length()
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{
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if ($this->id === false) return 0; // wr-only blob
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if (!($e=$this->_firstUse())) return $e;
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$info = @ibase_blob_info($this->id);
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if (!$info) return $this->_setDbError('get length of');
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return $info[0];
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}
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function _setDbError($query)
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{
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$hId = $this->id === null ? "null" : ($this->id === false ? "false" : $this->id);
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$query = "-- $query BLOB $hId";
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$this->database->_setDbError($query);
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}
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// Called on each blob use (reading or writing).
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function _firstUse()
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{
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// BLOB is opened - nothing to do.
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if (is_resource($this->blob)) return true;
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// Open or create blob.
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if ($this->id !== null) {
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$this->blob = @ibase_blob_open($this->id);
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if ($this->blob === false) return $this->_setDbError('open');
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} else {
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$this->blob = @ibase_blob_create($this->database->link);
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if ($this->blob === false) return $this->_setDbError('create');
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}
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return true;
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}
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}
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?>
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