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Igor Barkov (iwork)
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@@ -0,0 +1,290 @@
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<?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__) . '/Generic.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_Generic_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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$p = DbSimple_Generic::parseDSN($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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$obj =& new DbSimple_Ibase_Blob($this, $blobid);
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return $obj;
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}
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function _performGetBlobFieldNames($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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if ($row === false) return null;
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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 extends DbSimple_Generic_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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@@ -0,0 +1,234 @@
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<?php
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/**
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* DbSimple_Mysql: MySQL 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 end blobs are emulated.
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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__) . '/Generic.php';
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/**
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* Database class for MySQL.
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*/
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class DbSimple_Mysql extends DbSimple_Generic_Database
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{
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var $link;
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/**
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* constructor(string $dsn)
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* Connect to MySQL.
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*/
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function DbSimple_Mysql($dsn)
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{
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$p = DbSimple_Generic::parseDSN($dsn);
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if (!is_callable('mysql_connect')) {
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return $this->_setLastError("-1", "MySQL extension is not loaded", "mysql_connect");
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}
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$ok = $this->link = @mysql_connect(
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$str = $p['host'] . (empty($p['port'])? "" : ":" . $p['port']),
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$p['user'],
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$p['pass'],
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true
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);
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$this->_resetLastError();
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if (!$ok) return $this->_setDbError('mysql_connect("' . $str . '", "' . $p['user'] . '")');
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$ok = @mysql_select_db(preg_replace('{^/}s', '', $p['path']), $this->link);
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if (!$ok) return $this->_setDbError('mysql_select_db()');
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if (isset($p["charset"])) {
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$this->query('SET NAMES ?', $p["charset"]);
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}
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}
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function _performEscape($s, $isIdent=false)
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{
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if (!$isIdent) {
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return "'" . mysql_real_escape_string($s, $this->link) . "'";
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} else {
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return "`" . str_replace('`', '``', $s) . "`";
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}
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}
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||||
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function _performTransaction($parameters=null)
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{
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return $this->query('BEGIN');
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}
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function& _performNewBlob($blobid=null)
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{
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$obj =& new DbSimple_Mysql_Blob($this, $blobid);
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return $obj;
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||||
}
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||||
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function _performGetBlobFieldNames($result)
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{
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$blobFields = array();
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for ($i=mysql_num_fields($result)-1; $i>=0; $i--) {
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||||
$type = mysql_field_type($result, $i);
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if (strpos($type, "BLOB") !== false) $blobFields[] = mysql_field_name($result, $i);
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||||
}
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||||
return $blobFields;
|
||||
}
|
||||
|
||||
|
||||
function _performGetPlaceholderIgnoreRe()
|
||||
{
|
||||
return '
|
||||
" (?> [^"\\\\]+|\\\\"|\\\\)* " |
|
||||
\' (?> [^\'\\\\]+|\\\\\'|\\\\)* \' |
|
||||
` (?> [^`]+ | ``)* ` | # backticks
|
||||
/\* .*? \*/ # comments
|
||||
';
|
||||
}
|
||||
|
||||
|
||||
function _performCommit()
|
||||
{
|
||||
return $this->query('COMMIT');
|
||||
}
|
||||
|
||||
|
||||
function _performRollback()
|
||||
{
|
||||
return $this->query('ROLLBACK');
|
||||
}
|
||||
|
||||
|
||||
function _performTransformQuery(&$queryMain, $how)
|
||||
{
|
||||
// If we also need to calculate total number of found rows...
|
||||
switch ($how) {
|
||||
// Prepare total calculation (if possible)
|
||||
case 'CALC_TOTAL':
|
||||
$m = null;
|
||||
if (preg_match('/^(\s* SELECT)(.*)/six', $queryMain[0], $m)) {
|
||||
if ($this->_calcFoundRowsAvailable()) {
|
||||
$queryMain[0] = $m[1] . ' SQL_CALC_FOUND_ROWS' . $m[2];
|
||||
}
|
||||
}
|
||||
return true;
|
||||
|
||||
// Perform total calculation.
|
||||
case 'GET_TOTAL':
|
||||
// Built-in calculation available?
|
||||
if ($this->_calcFoundRowsAvailable()) {
|
||||
$queryMain = array('SELECT FOUND_ROWS()');
|
||||
}
|
||||
// Else use manual calculation.
|
||||
// TODO: GROUP BY ... -> COUNT(DISTINCT ...)
|
||||
$re = '/^
|
||||
(?> -- [^\r\n]* | \s+)*
|
||||
(\s* SELECT \s+) #1
|
||||
(.*?) #2
|
||||
(\s+ FROM \s+ .*?) #3
|
||||
((?:\s+ ORDER \s+ BY \s+ .*?)?) #4
|
||||
((?:\s+ LIMIT \s+ \S+ \s* (?:, \s* \S+ \s*)? )?) #5
|
||||
$/six';
|
||||
$m = null;
|
||||
if (preg_match($re, $queryMain[0], $m)) {
|
||||
$query[0] = $m[1] . $this->_fieldList2Count($m[2]) . " AS C" . $m[3];
|
||||
$skipTail = substr_count($m[4] . $m[5], '?');
|
||||
if ($skipTail) array_splice($query, -$skipTail);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
function _performQuery($queryMain)
|
||||
{
|
||||
$this->_lastQuery = $queryMain;
|
||||
$this->_expandPlaceholders($queryMain, false);
|
||||
$result = @mysql_query($queryMain[0], $this->link);
|
||||
if ($result === false) return $this->_setDbError($queryMain[0]);
|
||||
if (!is_resource($result)) {
|
||||
if (preg_match('/^\s* INSERT \s+/six', $queryMain[0])) {
|
||||
// INSERT queries return generated ID.
|
||||
return @mysql_insert_id($this->link);
|
||||
}
|
||||
// Non-SELECT queries return number of affected rows, SELECT - resource.
|
||||
return @mysql_affected_rows($this->link);
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
|
||||
function _performFetch($result)
|
||||
{
|
||||
$row = @mysql_fetch_assoc($result);
|
||||
if (mysql_error()) return $this->_setDbError($this->_lastQuery);
|
||||
if ($row === false) return null;
|
||||
return $row;
|
||||
}
|
||||
|
||||
|
||||
function _setDbError($query)
|
||||
{
|
||||
if ($this->link) {
|
||||
return $this->_setLastError(mysql_errno($this->link), mysql_error($this->link), $query);
|
||||
} else {
|
||||
return $this->_setLastError(mysql_errno(), mysql_error(), $query);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
function _calcFoundRowsAvailable()
|
||||
{
|
||||
$ok = version_compare(mysql_get_server_info($this->link), '4.0') >= 0;
|
||||
return $ok;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class DbSimple_Mysql_Blob extends DbSimple_Generic_Blob
|
||||
{
|
||||
// MySQL does not support separate BLOB fetching.
|
||||
var $blobdata = null;
|
||||
var $curSeek = 0;
|
||||
|
||||
function DbSimple_Mysql_Blob(&$database, $blobdata=null)
|
||||
{
|
||||
$this->blobdata = $blobdata;
|
||||
$this->curSeek = 0;
|
||||
}
|
||||
|
||||
function read($len)
|
||||
{
|
||||
$p = $this->curSeek;
|
||||
$this->curSeek = min($this->curSeek + $len, strlen($this->blobdata));
|
||||
return substr($this->blobdata, $this->curSeek, $len);
|
||||
}
|
||||
|
||||
function write($data)
|
||||
{
|
||||
$this->blobdata .= $data;
|
||||
}
|
||||
|
||||
function close()
|
||||
{
|
||||
return $this->blobdata;
|
||||
}
|
||||
|
||||
function length()
|
||||
{
|
||||
return strlen($this->blobdata);
|
||||
}
|
||||
}
|
||||
?>
|
||||
@@ -0,0 +1,321 @@
|
||||
<?php
|
||||
/**
|
||||
* DbSimple_Postgreql: PostgreSQL database.
|
||||
* (C) Dk Lab, http://en.dklab.ru
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
* See http://www.gnu.org/copyleft/lesser.html
|
||||
*
|
||||
* Placeholders are emulated because of logging purposes.
|
||||
*
|
||||
* @author Dmitry Koterov, http://forum.dklab.ru/users/DmitryKoterov/
|
||||
* @author Konstantin Zhinko, http://forum.dklab.ru/users/KonstantinGinkoTit/
|
||||
*
|
||||
* @version 2.x $Id$
|
||||
*/
|
||||
require_once dirname(__FILE__) . '/Generic.php';
|
||||
|
||||
|
||||
/**
|
||||
* Database class for PostgreSQL.
|
||||
*/
|
||||
class DbSimple_Postgresql extends DbSimple_Generic_Database
|
||||
{
|
||||
|
||||
var $DbSimple_Postgresql_USE_NATIVE_PHOLDERS = null;
|
||||
var $prepareCache = array();
|
||||
var $link;
|
||||
|
||||
/**
|
||||
* constructor(string $dsn)
|
||||
* Connect to PostgresSQL.
|
||||
*/
|
||||
function DbSimple_Postgresql($dsn)
|
||||
{
|
||||
$p = DbSimple_Generic::parseDSN($dsn);
|
||||
if (!is_callable('pg_connect')) {
|
||||
return $this->_setLastError("-1", "PostgreSQL extension is not loaded", "pg_connect");
|
||||
}
|
||||
|
||||
// Prepare+execute works only in PHP 5.1+.
|
||||
$this->DbSimple_Postgresql_USE_NATIVE_PHOLDERS = function_exists('pg_prepare');
|
||||
|
||||
$dsnWithoutPass =
|
||||
(!empty($p['host']) ? 'host='.$p['host'].' ' : '') .
|
||||
(!empty($p['port']) ? 'port=' . $p['port'] . ' ' : '') .
|
||||
'dbname=' . preg_replace('{^/}s', '', $p['path']) .' '.
|
||||
(!empty($p['user']) ? 'user='. $p['user'] : '');
|
||||
$ok = $this->link = @pg_connect(
|
||||
$dsnWithoutPass . " " . (!empty($p['pass']) ? 'password=' . $p['pass'] . ' ' : ''),
|
||||
PGSQL_CONNECT_FORCE_NEW
|
||||
);
|
||||
// We use PGSQL_CONNECT_FORCE_NEW, because in PHP 5.3 & PHPUnit
|
||||
// $this->prepareCache may be cleaned, but $this->link is still
|
||||
// not closed. So the next creation of DbSimple_Postgresql()
|
||||
// would use exactly the same connection as the previous, but with
|
||||
// empty $this->prepareCache, and it will generate "prepared statement
|
||||
// xxx already exists" error each time we execute the same statement
|
||||
// as in the previous calls.
|
||||
$this->_resetLastError();
|
||||
if (!$ok) return $this->_setDbError('pg_connect("' . $dsnWithoutPass . '") error');
|
||||
}
|
||||
|
||||
|
||||
function _performEscape($s, $isIdent=false)
|
||||
{
|
||||
if (!$isIdent)
|
||||
return "E'" . pg_escape_string($this->link, $s) . "'";
|
||||
else
|
||||
return '"' . str_replace('"', '_', $s) . '"';
|
||||
}
|
||||
|
||||
|
||||
function _performTransaction($parameters=null)
|
||||
{
|
||||
return $this->query('BEGIN');
|
||||
}
|
||||
|
||||
|
||||
function& _performNewBlob($blobid=null)
|
||||
{
|
||||
$obj =& new DbSimple_Postgresql_Blob($this, $blobid);
|
||||
return $obj;
|
||||
}
|
||||
|
||||
|
||||
function _performGetBlobFieldNames($result)
|
||||
{
|
||||
$blobFields = array();
|
||||
for ($i=pg_num_fields($result)-1; $i>=0; $i--) {
|
||||
$type = pg_field_type($result, $i);
|
||||
if (strpos($type, "BLOB") !== false) $blobFields[] = pg_field_name($result, $i);
|
||||
}
|
||||
return $blobFields;
|
||||
}
|
||||
|
||||
// TODO: Real PostgreSQL escape
|
||||
function _performGetPlaceholderIgnoreRe()
|
||||
{
|
||||
return '
|
||||
" (?> [^"\\\\]+|\\\\"|\\\\)* " |
|
||||
\' (?> [^\'\\\\]+|\\\\\'|\\\\)* \' |
|
||||
/\* .*? \*/ # comments
|
||||
';
|
||||
}
|
||||
|
||||
function _performGetNativePlaceholderMarker($n)
|
||||
{
|
||||
// PostgreSQL uses specific placeholders such as $1, $2, etc.
|
||||
return '$' . ($n + 1);
|
||||
}
|
||||
|
||||
function _performCommit()
|
||||
{
|
||||
return $this->query('COMMIT');
|
||||
}
|
||||
|
||||
|
||||
function _performRollback()
|
||||
{
|
||||
return $this->query('ROLLBACK');
|
||||
}
|
||||
|
||||
|
||||
function _performTransformQuery(&$queryMain, $how)
|
||||
{
|
||||
|
||||
// If we also need to calculate total number of found rows...
|
||||
switch ($how) {
|
||||
// Prepare total calculation (if possible)
|
||||
case 'CALC_TOTAL':
|
||||
// Not possible
|
||||
return true;
|
||||
|
||||
// Perform total calculation.
|
||||
case 'GET_TOTAL':
|
||||
// TODO: GROUP BY ... -> COUNT(DISTINCT ...)
|
||||
$re = '/^
|
||||
(?> -- [^\r\n]* | \s+)*
|
||||
(\s* SELECT \s+) #1
|
||||
(.*?) #2
|
||||
(\s+ FROM \s+ .*?) #3
|
||||
((?:\s+ ORDER \s+ BY \s+ .*?)?) #4
|
||||
((?:\s+ LIMIT \s+ \S+ \s* (?: OFFSET \s* \S+ \s*)? )?) #5
|
||||
$/six';
|
||||
$m = null;
|
||||
if (preg_match($re, $queryMain[0], $m)) {
|
||||
$queryMain[0] = $m[1] . $this->_fieldList2Count($m[2]) . " AS C" . $m[3];
|
||||
$skipTail = substr_count($m[4] . $m[5], '?');
|
||||
if ($skipTail) array_splice($queryMain, -$skipTail);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
function _performQuery($queryMain)
|
||||
{
|
||||
$this->_lastQuery = $queryMain;
|
||||
$isInsert = preg_match('/^\s* INSERT \s+/six', $queryMain[0]);
|
||||
|
||||
//
|
||||
// Note that in case of INSERT query we CANNOT work with prepare...execute
|
||||
// cache, because RULEs do not work after pg_execute(). This is a very strange
|
||||
// bug... To reproduce:
|
||||
// $DB->query("CREATE TABLE test(id SERIAL, str VARCHAR(10)) WITH OIDS");
|
||||
// $DB->query("CREATE RULE test_r AS ON INSERT TO test DO (SELECT 111 AS id)");
|
||||
// print_r($DB->query("INSERT INTO test(str) VALUES ('test')"));
|
||||
// In case INSERT + pg_execute() it returns new row OID (numeric) instead
|
||||
// of result of RULE query. Strange, very strange...
|
||||
//
|
||||
|
||||
if ($this->DbSimple_Postgresql_USE_NATIVE_PHOLDERS && !$isInsert) {
|
||||
// Use native placeholders only if PG supports them.
|
||||
$this->_expandPlaceholders($queryMain, true);
|
||||
$hash = md5($queryMain[0]);
|
||||
if (!isset($this->prepareCache[$hash])) {
|
||||
$prepared = @pg_prepare($this->link, $hash, $queryMain[0]);
|
||||
if ($prepared === false) return $this->_setDbError($queryMain[0]);
|
||||
else $this->prepareCache[$hash] = true;
|
||||
} else {
|
||||
// Prepare cache hit!
|
||||
}
|
||||
$result = pg_execute($this->link, $hash, array_slice($queryMain, 1));
|
||||
} else {
|
||||
// No support for native placeholders on INSERT query.
|
||||
$this->_expandPlaceholders($queryMain, false);
|
||||
$result = @pg_query($this->link, $queryMain[0]);
|
||||
}
|
||||
|
||||
if ($result === false) return $this->_setDbError($queryMain);
|
||||
if (!pg_num_fields($result)) {
|
||||
if ($isInsert) {
|
||||
// INSERT queries return generated OID (if table is WITH OIDs).
|
||||
//
|
||||
// Please note that unfortunately we cannot use lastval() PostgreSQL
|
||||
// stored function because it generates fatal error if INSERT query
|
||||
// does not contain sequence-based field at all. This error terminates
|
||||
// the current transaction, and we cannot continue to work nor know
|
||||
// if table contains sequence-updateable field or not.
|
||||
//
|
||||
// To use auto-increment functionality you must invoke
|
||||
// $insertedId = $DB->query("SELECT lastval()")
|
||||
// manually where it is really needed.
|
||||
//
|
||||
return @pg_last_oid($result);
|
||||
}
|
||||
// Non-SELECT queries return number of affected rows, SELECT - resource.
|
||||
return @pg_affected_rows($result);
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
|
||||
function _performFetch($result)
|
||||
{
|
||||
$row = @pg_fetch_assoc($result);
|
||||
if (pg_last_error($this->link)) return $this->_setDbError($this->_lastQuery);
|
||||
if ($row === false) return null;
|
||||
return $row;
|
||||
}
|
||||
|
||||
|
||||
function _setDbError($query)
|
||||
{
|
||||
return $this->_setLastError(null, $this->link? pg_last_error($this->link) : (is_array($query)? "Connection is not established" : $query), $query);
|
||||
}
|
||||
|
||||
function _getVersion()
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
class DbSimple_Postgresql_Blob extends DbSimple_Generic_Blob
|
||||
{
|
||||
var $blob; // resourse link
|
||||
var $id;
|
||||
var $database;
|
||||
|
||||
function DbSimple_Postgresql_Blob(&$database, $id=null)
|
||||
{
|
||||
$this->database =& $database;
|
||||
$this->database->transaction();
|
||||
$this->id = $id;
|
||||
$this->blob = null;
|
||||
}
|
||||
|
||||
function read($len)
|
||||
{
|
||||
if ($this->id === false) return ''; // wr-only blob
|
||||
if (!($e=$this->_firstUse())) return $e;
|
||||
$data = @pg_lo_read($this->blob, $len);
|
||||
if ($data === false) return $this->_setDbError('read');
|
||||
return $data;
|
||||
}
|
||||
|
||||
function write($data)
|
||||
{
|
||||
if (!($e=$this->_firstUse())) return $e;
|
||||
$ok = @pg_lo_write($this->blob, $data);
|
||||
if ($ok === false) return $this->_setDbError('add data to');
|
||||
return true;
|
||||
}
|
||||
|
||||
function close()
|
||||
{
|
||||
if (!($e=$this->_firstUse())) return $e;
|
||||
if ($this->blob) {
|
||||
$id = @pg_lo_close($this->blob);
|
||||
if ($id === false) return $this->_setDbError('close');
|
||||
$this->blob = null;
|
||||
} else {
|
||||
$id = null;
|
||||
}
|
||||
$this->database->commit();
|
||||
return $this->id? $this->id : $id;
|
||||
}
|
||||
|
||||
function length()
|
||||
{
|
||||
if (!($e=$this->_firstUse())) return $e;
|
||||
|
||||
@pg_lo_seek($this->blob, 0, PGSQL_SEEK_END);
|
||||
$len = @pg_lo_tell($this->blob);
|
||||
@pg_lo_seek($this->blob, 0, PGSQL_SEEK_SET);
|
||||
|
||||
if (!$len) return $this->_setDbError('get length of');
|
||||
return $len;
|
||||
}
|
||||
|
||||
function _setDbError($query)
|
||||
{
|
||||
$hId = $this->id === null? "null" : ($this->id === false? "false" : $this->id);
|
||||
$query = "-- $query BLOB $hId";
|
||||
$this->database->_setDbError($query);
|
||||
}
|
||||
|
||||
// Called on each blob use (reading or writing).
|
||||
function _firstUse()
|
||||
{
|
||||
// BLOB opened - do nothing.
|
||||
if (is_resource($this->blob)) return true;
|
||||
|
||||
// Open or create blob.
|
||||
if ($this->id !== null) {
|
||||
$this->blob = @pg_lo_open($this->database->link, $this->id, 'rw');
|
||||
if ($this->blob === false) return $this->_setDbError('open');
|
||||
} else {
|
||||
$this->id = @pg_lo_create($this->database->link);
|
||||
$this->blob = @pg_lo_open($this->database->link, $this->id, 'w');
|
||||
if ($this->blob === false) return $this->_setDbError('create');
|
||||
}
|
||||
return true;
|
||||
}
|
||||
}
|
||||
?>
|
||||
Reference in New Issue
Block a user