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cvsjoko |
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<?php |
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// |
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// +----------------------------------------------------------------------+ |
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// | PHP Version 4 | |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 1997-2002 The PHP Group | |
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// +----------------------------------------------------------------------+ |
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// | This source file is subject to version 2.02 of the PHP license, | |
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// | that is bundled with this package in the file LICENSE, and is | |
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// | available at through the world-wide-web at | |
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// | http://www.php.net/license/2_02.txt. | |
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// | If you did not receive a copy of the PHP license and are unable to | |
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// | obtain it through the world-wide-web, please send a note to | |
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// | license@php.net so we can mail you a copy immediately. | |
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// +----------------------------------------------------------------------+ |
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// | Author: Sterling Hughes <sterling@php.net> | |
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// +----------------------------------------------------------------------+ |
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// |
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// $Id: ibase.php,v 1.36.2.2 2002/04/09 19:04:13 ssb Exp $ |
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// |
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// Database independent query interface definition for PHP's Interbase |
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// extension. |
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// |
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require_once 'DB/common.php'; |
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class DB_ibase extends DB_common |
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{ |
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var $connection; |
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var $phptype, $dbsyntax; |
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var $autocommit = 1; |
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var $manip_query = array(); |
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function DB_ibase() |
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{ |
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$this->DB_common(); |
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$this->phptype = 'ibase'; |
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$this->dbsyntax = 'ibase'; |
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$this->features = array( |
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'prepare' => true, |
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'pconnect' => true, |
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'transactions' => true, |
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'limit' => false |
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); |
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// just a few of the tons of Interbase error codes listed in the |
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// Language Reference section of the Interbase manual |
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$this->errorcode_map = array( |
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-104 => DB_ERROR_SYNTAX, |
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-150 => DB_ERROR_ACCESS_VIOLATION, |
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-151 => DB_ERROR_ACCESS_VIOLATION, |
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-155 => DB_ERROR_NOSUCHTABLE, |
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-157 => DB_ERROR_NOSUCHFIELD, |
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-158 => DB_ERROR_VALUE_COUNT_ON_ROW, |
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-170 => DB_ERROR_MISMATCH, |
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-171 => DB_ERROR_MISMATCH, |
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-172 => DB_ERROR_INVALID, |
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-204 => DB_ERROR_INVALID, |
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-205 => DB_ERROR_NOSUCHFIELD, |
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-206 => DB_ERROR_NOSUCHFIELD, |
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-208 => DB_ERROR_INVALID, |
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-219 => DB_ERROR_NOSUCHTABLE, |
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-297 => DB_ERROR_CONSTRAINT, |
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-530 => DB_ERROR_CONSTRAINT, |
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-803 => DB_ERROR_CONSTRAINT, |
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-551 => DB_ERROR_ACCESS_VIOLATION, |
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-552 => DB_ERROR_ACCESS_VIOLATION, |
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-922 => DB_ERROR_NOSUCHDB, |
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-923 => DB_ERROR_CONNECT_FAILED, |
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-924 => DB_ERROR_CONNECT_FAILED |
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); |
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} |
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function connect($dsninfo, $persistent = false) |
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{ |
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if (!DB::assertExtension('interbase')) { |
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return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND); |
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} |
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$this->dsn = $dsninfo; |
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$user = $dsninfo['username']; |
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$pw = $dsninfo['password']; |
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$dbhost = $dsninfo['hostspec'] ? |
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($dsninfo['hostspec'] . ':/' . $dsninfo['database']) : |
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$dsninfo['database']; |
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$connect_function = $persistent ? 'ibase_pconnect' : 'ibase_connect'; |
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$params = array(); |
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$params[] = $dbhost; |
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$params[] = !empty($user) ? $user : null; |
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$params[] = !empty($pw) ? $pw : null; |
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$params[] = isset($dsninfo['charset']) ? $dsninfo['charset'] : null; |
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$params[] = isset($dsninfo['buffers']) ? $dsninfo['buffers'] : null; |
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$params[] = isset($dsninfo['dialect']) ? $dsninfo['dialect'] : null; |
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$params[] = isset($dsninfo['role']) ? $dsninfo['role'] : null; |
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/* |
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if ($dbhost && $user && $pw) { |
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$conn = $connect_function($dbhost, $user, $pw); |
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} elseif ($dbhost && $user) { |
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$conn = $connect_function($dbhost, $user); |
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} elseif ($dbhost) { |
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$conn = $connect_function($dbhost); |
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} else { |
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return $this->raiseError("no host, user or password"); |
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} |
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*/ |
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$conn = @call_user_func_array($connect_function, $params); |
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if (!$conn) { |
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return $this->ibaseRaiseError(DB_ERROR_CONNECT_FAILED); |
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} |
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$this->connection = $conn; |
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return DB_OK; |
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} |
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function disconnect() |
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{ |
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$ret = @ibase_close($this->connection); |
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$this->connection = null; |
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return $ret; |
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} |
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function simpleQuery($query) |
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{ |
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$ismanip = DB::isManip($query); |
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$this->last_query = $query; |
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$query = $this->modifyQuery($query); |
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$result = @ibase_query($this->connection, $query); |
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if (!$result) { |
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return $this->ibaseRaiseError(); |
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} |
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if ($this->autocommit && $ismanip) { |
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ibase_commit($this->connection); |
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} |
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// Determine which queries that should return data, and which |
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// should return an error code only. |
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return DB::isManip($query) ? DB_OK : $result; |
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} |
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// {{{ modifyLimitQuery() |
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/** |
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* This method is used by backends to alter limited queries |
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* Uses the new FIRST n SKIP n Firebird 1.0 syntax, so it is |
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* only compatible with Firebird 1.x |
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* |
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* @param string $query query to modify |
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* @param integer $from the row to start to fetching |
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* @param integer $count the numbers of rows to fetch |
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* |
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* @return the new (modified) query |
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* @author Ludovico Magnocavallo <ludo@sumatrasolutions.com> |
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* @access private |
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*/ |
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function modifyLimitQuery($query, $from, $count) |
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{ |
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if ($this->dsn['dbsyntax'] == 'firebird') { |
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$from++; // SKIP starts from 1, ie SKIP 1 starts from the first record |
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$query = preg_replace('/^\s*select\s(.*)$/is', |
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"SELECT FIRST $count SKIP $from $1", $query); |
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} |
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return $query; |
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} |
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// }}} |
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// {{{ nextResult() |
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/** |
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* Move the internal ibase result pointer to the next available result |
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* |
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* @param a valid fbsql result resource |
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* |
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* @access public |
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* |
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* @return true if a result is available otherwise return false |
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*/ |
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function nextResult($result) |
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{ |
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return false; |
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} |
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// }}} |
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function fetchInto($result, &$ar, $fetchmode, $rownum = null) |
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{ |
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if ($rownum !== NULL) { |
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return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE); |
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} |
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if ($fetchmode & DB_FETCHMODE_ASSOC) { |
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$ar = get_object_vars(ibase_fetch_object($result)); |
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if ($ar && $this->options['optimize'] == 'portability') { |
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$ar = array_change_key_case($ar, CASE_LOWER); |
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} |
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} else { |
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$ar = ibase_fetch_row($result); |
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} |
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if (!$ar) { |
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if ($errmsg = ibase_errmsg()) { |
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return $this->ibaseRaiseError(null, $errmsg); |
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} else { |
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return null; |
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} |
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} |
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return DB_OK; |
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} |
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function freeResult() |
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{ |
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if (is_resource($result)) { |
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return ibase_free_result($result); |
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} |
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if (!isset($this->prepare_tokens[(int)$result])) { |
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return false; |
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} |
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unset($this->prepare_tokens[(int)$result]); |
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unset($this->prepare_types[(int)$result]); |
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return true; |
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} |
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function freeQuery($query) |
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{ |
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ibase_free_query($query); |
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return true; |
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} |
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function numCols($result) |
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{ |
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$cols = ibase_num_fields($result); |
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if (!$cols) { |
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return $this->ibaseRaiseError(); |
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} |
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return $cols; |
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} |
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function prepare($query) |
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{ |
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$this->last_query = $query; |
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$query = $this->modifyQuery($query); |
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$stmt = ibase_prepare($query); |
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$this->manip_query[(int)$stmt] = DB::isManip($query); |
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return $stmt; |
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} |
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function execute($stmt, $data = false) |
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{ |
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$result = ibase_execute($stmt, $data); |
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if (!$result) { |
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return $this->ibaseRaiseError(); |
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} |
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if ($this->autocommit) { |
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ibase_commit($this->connection); |
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} |
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return DB::isManip($this->manip_query[(int)$stmt]) ? DB_OK : new DB_result($this, $result); |
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} |
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function autoCommit($onoff = false) |
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{ |
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$this->autocommit = $onoff ? 1 : 0; |
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return DB_OK; |
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} |
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function commit() |
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{ |
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return ibase_commit($this->connection); |
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} |
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function rollback($trans_number) |
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{ |
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return ibase_rollback($this->connection, $trans_number); |
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} |
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function transactionInit($trans_args = 0) |
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{ |
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return $trans_args ? ibase_trans($trans_args, $this->connection) : ibase_trans(); |
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} |
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// {{{ nextId() |
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/** |
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* Get the next value in a sequence. |
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* |
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* If the sequence does not exist, it will be created, |
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* unless $ondemand is false. |
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* |
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* @access public |
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* @param string $seq_name the name of the sequence |
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* @param bool $ondemand whether to create the sequence on demand |
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* @return a sequence integer, or a DB error |
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*/ |
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function nextId($seq_name, $ondemand = true) |
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{ |
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$sqn = strtoupper(preg_replace('/[^a-z0-9_]/i', '_', $seq_name)); |
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$repeat = 0; |
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do { |
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$this->pushErrorHandling(PEAR_ERROR_RETURN); |
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$result = $this->query("SELECT GEN_ID(${sqn}_SEQ, 1) FROM RDB\$GENERATORS" |
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." WHERE RDB\$GENERATOR_NAME='${sqn}_SEQ'"); |
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$this->popErrorHandling(); |
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if ($ondemand && DB::isError($result)) { |
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$repeat = 1; |
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$result = $this->createSequence($seq_name); |
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if (DB::isError($result)) { |
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return $result; |
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} |
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} else { |
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$repeat = 0; |
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} |
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} while ($repeat); |
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if (DB::isError($result)) { |
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return $result; |
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} |
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$arr = $result->fetchRow(DB_FETCHMODE_ORDERED); |
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$result->free(); |
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return $arr[0]; |
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} |
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// }}} |
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// {{{ createSequence() |
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/** |
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* Create the sequence |
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* |
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* @param string $seq_name the name of the sequence |
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* @return mixed DB_OK on success or DB error on error |
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* @access public |
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*/ |
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function createSequence($seq_name) |
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{ |
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$sqn = strtoupper(preg_replace('/[^a-z0-9_]/i', '_', $seq_name)); |
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$this->pushErrorHandling(PEAR_ERROR_RETURN); |
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$result = $this->query("CREATE GENERATOR ${sqn}_SEQ"); |
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$this->popErrorHandling(); |
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return $result; |
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} |
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// }}} |
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// {{{ dropSequence() |
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/** |
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* Drop a sequence |
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* |
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* @param string $seq_name the name of the sequence |
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* @return mixed DB_OK on success or DB error on error |
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* @access public |
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*/ |
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function dropSequence($seq_name) |
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{ |
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$sqn = strtoupper(preg_replace('/[^a-z0-9_]/i', '_', $seq_name)); |
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return $this->query("DELETE FROM RDB\$GENERATORS WHERE RDB\$GENERATOR_NAME='${sqn}_SEQ'"); |
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} |
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// }}} |
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// {{{ _ibaseFieldFlags() |
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/** |
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* get the Flags of a Field |
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* |
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* @param string $field_name the name of the field |
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* @param string $table_name the name of the table |
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* |
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* @return string The flags of the field ("primary_key", "unique_key", "not_null" |
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* "default", "computed" and "blob" are supported) |
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* @access private |
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*/ |
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function _ibaseFieldFlags($field_name, $table_name) |
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{ |
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$sql = 'SELECT R.RDB$CONSTRAINT_TYPE CTYPE' |
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.' FROM RDB$INDEX_SEGMENTS I' |
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.' JOIN RDB$RELATION_CONSTRAINTS R ON I.RDB$INDEX_NAME=R.RDB$INDEX_NAME' |
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.' WHERE I.RDB$FIELD_NAME=\''.$field_name.'\'' |
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.' AND R.RDB$RELATION_NAME=\''.$table_name.'\''; |
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$result = ibase_query($this->connection, $sql); |
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if (empty($result)) { |
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return $this->ibaseRaiseError(); |
| 378 |
|
|
} |
| 379 |
|
|
if ($obj = @ibase_fetch_object($result)) { |
| 380 |
|
|
ibase_free_result($result); |
| 381 |
|
|
if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'PRIMARY KEY') { |
| 382 |
|
|
$flags = 'primary_key '; |
| 383 |
|
|
} |
| 384 |
|
|
if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'UNIQUE') { |
| 385 |
|
|
$flags .= 'unique_key '; |
| 386 |
|
|
} |
| 387 |
|
|
} |
| 388 |
|
|
|
| 389 |
|
|
$sql = 'SELECT R.RDB$NULL_FLAG AS NFLAG,' |
| 390 |
|
|
.' R.RDB$DEFAULT_SOURCE AS DSOURCE,' |
| 391 |
|
|
.' F.RDB$FIELD_TYPE AS FTYPE,' |
| 392 |
|
|
.' F.RDB$COMPUTED_SOURCE AS CSOURCE' |
| 393 |
|
|
.' FROM RDB$RELATION_FIELDS R ' |
| 394 |
|
|
.' JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME' |
| 395 |
|
|
.' WHERE R.RDB$RELATION_NAME=\''.$table_name.'\'' |
| 396 |
|
|
.' AND R.RDB$FIELD_NAME=\''.$field_name.'\''; |
| 397 |
|
|
$result = ibase_query($this->connection, $sql); |
| 398 |
|
|
if (empty($result)) { |
| 399 |
|
|
return $this->ibaseRaiseError(); |
| 400 |
|
|
} |
| 401 |
|
|
if ($obj = @ibase_fetch_object($result)) { |
| 402 |
|
|
ibase_free_result($result); |
| 403 |
|
|
if (isset($obj->NFLAG)) { |
| 404 |
|
|
$flags .= 'not_null '; |
| 405 |
|
|
} |
| 406 |
|
|
if (isset($obj->DSOURCE)) { |
| 407 |
|
|
$flags .= 'default '; |
| 408 |
|
|
} |
| 409 |
|
|
if (isset($obj->CSOURCE)) { |
| 410 |
|
|
$flags .= 'computed '; |
| 411 |
|
|
} |
| 412 |
|
|
if (isset($obj->FTYPE) && $obj->FTYPE == 261) { |
| 413 |
|
|
$flags .= 'blob '; |
| 414 |
|
|
} |
| 415 |
|
|
} |
| 416 |
|
|
|
| 417 |
|
|
return trim($flags); |
| 418 |
|
|
} |
| 419 |
|
|
|
| 420 |
|
|
// }}} |
| 421 |
|
|
// {{{ tableInfo() |
| 422 |
|
|
|
| 423 |
|
|
/** |
| 424 |
|
|
* Returns information about a table or a result set |
| 425 |
|
|
* |
| 426 |
|
|
* NOTE: doesn't support 'flags'and 'table' if called from a db_result |
| 427 |
|
|
* |
| 428 |
|
|
* @param mixed $resource Interbase result identifier or table name |
| 429 |
|
|
* @param int $mode A valid tableInfo mode (DB_TABLEINFO_ORDERTABLE or |
| 430 |
|
|
* DB_TABLEINFO_ORDER) |
| 431 |
|
|
* |
| 432 |
|
|
* @return array An array with all the information |
| 433 |
|
|
*/ |
| 434 |
|
|
function tableInfo($result, $mode = null) |
| 435 |
|
|
{ |
| 436 |
|
|
$count = 0; |
| 437 |
|
|
$id = 0; |
| 438 |
|
|
$res = array(); |
| 439 |
|
|
|
| 440 |
|
|
/* |
| 441 |
|
|
* depending on $mode, metadata returns the following values: |
| 442 |
|
|
* |
| 443 |
|
|
* - mode is false (default): |
| 444 |
|
|
* $result[]: |
| 445 |
|
|
* [0]["table"] table name |
| 446 |
|
|
* [0]["name"] field name |
| 447 |
|
|
* [0]["type"] field type |
| 448 |
|
|
* [0]["len"] field length |
| 449 |
|
|
* [0]["flags"] field flags |
| 450 |
|
|
* |
| 451 |
|
|
* - mode is DB_TABLEINFO_ORDER |
| 452 |
|
|
* $result[]: |
| 453 |
|
|
* ["num_fields"] number of metadata records |
| 454 |
|
|
* [0]["table"] table name |
| 455 |
|
|
* [0]["name"] field name |
| 456 |
|
|
* [0]["type"] field type |
| 457 |
|
|
* [0]["len"] field length |
| 458 |
|
|
* [0]["flags"] field flags |
| 459 |
|
|
* ["order"][field name] index of field named "field name" |
| 460 |
|
|
* The last one is used, if you have a field name, but no index. |
| 461 |
|
|
* Test: if (isset($result['meta']['myfield'])) { ... |
| 462 |
|
|
* |
| 463 |
|
|
* - mode is DB_TABLEINFO_ORDERTABLE |
| 464 |
|
|
* the same as above. but additionally |
| 465 |
|
|
* ["ordertable"][table name][field name] index of field |
| 466 |
|
|
* named "field name" |
| 467 |
|
|
* |
| 468 |
|
|
* this is, because if you have fields from different |
| 469 |
|
|
* tables with the same field name * they override each |
| 470 |
|
|
* other with DB_TABLEINFO_ORDER |
| 471 |
|
|
* |
| 472 |
|
|
* you can combine DB_TABLEINFO_ORDER and |
| 473 |
|
|
* DB_TABLEINFO_ORDERTABLE with DB_TABLEINFO_ORDER | |
| 474 |
|
|
* DB_TABLEINFO_ORDERTABLE * or with DB_TABLEINFO_FULL |
| 475 |
|
|
*/ |
| 476 |
|
|
|
| 477 |
|
|
// if $result is a string, then we want information about a |
| 478 |
|
|
// table without a resultset |
| 479 |
|
|
|
| 480 |
|
|
if (is_string($result)) { |
| 481 |
|
|
$id = ibase_query($this->connection,"SELECT * FROM $result"); |
| 482 |
|
|
if (empty($id)) { |
| 483 |
|
|
return $this->ibaseRaiseError(); |
| 484 |
|
|
} |
| 485 |
|
|
} else { // else we want information about a resultset |
| 486 |
|
|
$id = $result; |
| 487 |
|
|
if (empty($id)) { |
| 488 |
|
|
return $this->ibaseRaiseError(); |
| 489 |
|
|
} |
| 490 |
|
|
} |
| 491 |
|
|
|
| 492 |
|
|
$count = @ibase_num_fields($id); |
| 493 |
|
|
|
| 494 |
|
|
// made this IF due to performance (one if is faster than $count if's) |
| 495 |
|
|
if (empty($mode)) { |
| 496 |
|
|
|
| 497 |
|
|
for ($i=0; $i<$count; $i++) { |
| 498 |
|
|
$info = @ibase_field_info($id, $i); |
| 499 |
|
|
$res[$i]['table'] = (is_string($result)) ? $result : ''; |
| 500 |
|
|
$res[$i]['name'] = $info['name']; |
| 501 |
|
|
$res[$i]['type'] = $info['type']; |
| 502 |
|
|
$res[$i]['len'] = $info['length']; |
| 503 |
|
|
$res[$i]['flags'] = (is_string($result)) ? $this->_ibaseFieldFlags($info['name'], $result) : ''; |
| 504 |
|
|
} |
| 505 |
|
|
|
| 506 |
|
|
} else { // full |
| 507 |
|
|
$res["num_fields"]= $count; |
| 508 |
|
|
|
| 509 |
|
|
for ($i=0; $i<$count; $i++) { |
| 510 |
|
|
$info = @ibase_field_info($id, $i); |
| 511 |
|
|
$res[$i]['table'] = (is_string($result)) ? $result : ''; |
| 512 |
|
|
$res[$i]['name'] = $info['name']; |
| 513 |
|
|
$res[$i]['type'] = $info['type']; |
| 514 |
|
|
$res[$i]['len'] = $info['length']; |
| 515 |
|
|
$res[$i]['flags'] = (is_string($result)) ? $this->_ibaseFieldFlags($info['name'], $result) : ''; |
| 516 |
|
|
if ($mode & DB_TABLEINFO_ORDER) { |
| 517 |
|
|
$res['order'][$res[$i]['name']] = $i; |
| 518 |
|
|
} |
| 519 |
|
|
if ($mode & DB_TABLEINFO_ORDERTABLE) { |
| 520 |
|
|
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i; |
| 521 |
|
|
} |
| 522 |
|
|
} |
| 523 |
|
|
} |
| 524 |
|
|
|
| 525 |
|
|
// free the result only if we were called on a table |
| 526 |
|
|
if (is_resource($id)) { |
| 527 |
|
|
ibase_free_result($id); |
| 528 |
|
|
} |
| 529 |
|
|
return $res; |
| 530 |
|
|
} |
| 531 |
|
|
|
| 532 |
|
|
// }}} |
| 533 |
|
|
// {{{ getSpecialQuery() |
| 534 |
|
|
|
| 535 |
|
|
/** |
| 536 |
|
|
* Returns the query needed to get some backend info |
| 537 |
|
|
* @param string $type What kind of info you want to retrieve |
| 538 |
|
|
* @return string The SQL query string |
| 539 |
|
|
*/ |
| 540 |
|
|
function getSpecialQuery($type) |
| 541 |
|
|
{ |
| 542 |
|
|
switch ($type) { |
| 543 |
|
|
case 'tables': |
| 544 |
|
|
default: |
| 545 |
|
|
return null; |
| 546 |
|
|
} |
| 547 |
|
|
return $sql; |
| 548 |
|
|
} |
| 549 |
|
|
|
| 550 |
|
|
// }}} |
| 551 |
|
|
// {{{ ibaseRaiseError() |
| 552 |
|
|
|
| 553 |
|
|
function ibaseRaiseError($errno = null, $errmsg = null) |
| 554 |
|
|
{ |
| 555 |
|
|
if ($errmsg === null) |
| 556 |
|
|
$errmsg = ibase_errmsg(); |
| 557 |
|
|
// memo for the interbase php module hackers: we need something similar |
| 558 |
|
|
// to mysql_errno() to retrieve error codes instead of this ugly hack |
| 559 |
|
|
if (preg_match('/^([^0-9\-]+)([0-9\-]+)\s+(.*)$/', $errmsg, $m)) { |
| 560 |
|
|
if ($errno === null) { |
| 561 |
|
|
$ibase_errno = (int)$m[2]; |
| 562 |
|
|
// try to interpret Interbase error code (that's why we need ibase_errno() |
| 563 |
|
|
// in the interbase module to return the real error code) |
| 564 |
|
|
switch ($ibase_errno) { |
| 565 |
|
|
case -204: |
| 566 |
|
|
if (is_int(strpos($m[3], 'Table unknown'))) { |
| 567 |
|
|
$errno = DB_ERROR_NOSUCHTABLE; |
| 568 |
|
|
} |
| 569 |
|
|
break; |
| 570 |
|
|
default: |
| 571 |
|
|
$errno = $this->errorCode($ibase_errno); |
| 572 |
|
|
} |
| 573 |
|
|
} |
| 574 |
|
|
$errmsg = $m[2] . ' ' . $m[3]; |
| 575 |
|
|
} |
| 576 |
|
|
|
| 577 |
|
|
return $this->raiseError($errno, null, null, $errmsg, |
| 578 |
|
|
$this->last_query); |
| 579 |
|
|
} |
| 580 |
|
|
|
| 581 |
|
|
// }}} |
| 582 |
|
|
|
| 583 |
|
|
} |
| 584 |
|
|
|
| 585 |
|
|
/* |
| 586 |
|
|
* Local variables: |
| 587 |
|
|
* tab-width: 4 |
| 588 |
|
|
* c-basic-offset: 4 |
| 589 |
|
|
* End: |
| 590 |
|
|
*/ |
| 591 |
|
|
|
| 592 |
|
|
?> |
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| 
Revision Log
