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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP version 4.0 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Stig Bakken <ssb@fast.no> |
- // | |
- // +----------------------------------------------------------------------+
- //
- // Database independent query interface definition for PHP's ODBC
- // extension.
- //
-
- //
- // XXX legend:
- //
- // XXX ERRORMSG: The error message from the odbc function should
- // be registered here.
- // XXX ADDREF: As soon as Zend/PHP gets support for returning
- // references, this return value should be made into
- // a reference.
- //
-
- require_once 'DB/common.php';
-
- class DB_odbc extends DB_common {
- // {{{ properties
-
- var $connection;
- var $phptype, $dbsyntax;
-
- // }}}
-
- // {{{ constructor
-
- function DB_odbc() {
- $this->phptype = 'odbc';
- $this->dbsyntax = 'unknown';
- // Let's be very pessimistic about the features of an odbc
- // backend. The user has to specify the dbsyntax to access
- // other features.
- $this->features = array(
- 'prepare' => false,
- 'pconnect' => true,
- 'transactions' => false
- );
- $this->errorcode_map = array(
- "01004" => DB_ERROR_TRUNCATED,
- "07001" => DB_ERROR_MISMATCH,
- "21S01" => DB_ERROR_MISMATCH,
- "21S02" => DB_ERROR_MISMATCH,
- "22003" => DB_ERROR_INVALID_NUMBER,
- "22008" => DB_ERROR_INVALID_DATE,
- "22012" => DB_ERROR_DIVZERO,
- "23000" => DB_ERROR_CONSTRAINT,
- "24000" => DB_ERROR_INVALID,
- "34000" => DB_ERROR_INVALID,
- "37000" => DB_ERROR_SYNTAX,
- "42000" => DB_ERROR_SYNTAX,
- "IM001" => DB_ERROR_UNSUPPORTED,
- "S0001" => DB_ERROR_NOT_FOUND,
- "S0002" => DB_ERROR_NOT_FOUND,
- "S0011" => DB_ERROR_ALREADY_EXISTS,
- "S0012" => DB_ERROR_NOT_FOUND,
- "S0021" => DB_ERROR_ALREADY_EXISTS,
- "S0022" => DB_ERROR_NOT_FOUND,
- "S1009" => DB_ERROR_INVALID,
- "S1090" => DB_ERROR_INVALID,
- "S1C00" => DB_ERROR_NOT_CAPABLE
- );
- }
-
- // }}}
-
- // {{{ connect()
-
- /**
- * Connect to a database and log in as the specified user.
- *
- * @param $dsn the data source name (see DB::parseDSN for syntax)
- * @param $persistent (optional) whether the connection should
- * be persistent
- *
- * @return int DB_OK on success, a DB error code on failure
- */
- function connect(&$dsn, $user, $pw) {
- if (is_array($dsn)) {
- $dsninfo = &$dsn;
- } else {
- $dsninfo = DB::parseDSN($dsn);
- }
- if (!$dsninfo || !$dsninfo['phptype']) {
- return $this->raiseError(); // XXX ERRORMSG
- }
- $this->dbsyntax = $dsninfo['dbsyntax'];
- switch ($this->dbsyntax) {
- case 'solid':
- $this->features = array(
- 'prepare' => true,
- 'pconnect' => true,
- 'transactions' => true
- );
- $default_dsn = 'localhost';
- break;
- default:
- break;
- }
- $dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
- $user = $dsninfo['username'];
- $pw = $dsninfo['password'];
- if ($this->provides('pconnect')) {
- $connect_function = $persistent ? 'odbc_pconnect' : 'odbc_connect';
- } else {
- $connect_function = 'odbc_connect';
- }
- if ($dbhost && $user && $pw) {
- $conn = $connect_function($dbhost, $user, $pw);
- } elseif ($dbhost && $user) {
- $conn = $connect_function($dbhost, $user);
- } elseif ($dbhost) {
- $conn = $connect_function($dbhost);
- } else {
- $conn = false;
- }
- if ($conn == false) {
- return $this->raiseError(); // XXX ERRORMSG
- }
- $this->connection = $conn;
- return DB_OK;
-
-
-
- $this->connection = odbc_connect($dsn, $user, $pw);
- }
-
- // }}}
- // {{{ disconnect()
-
- function disconnect() {
- $err = odbc_close($this->connection); // XXX ERRORMSG
- return $err;
- }
-
- // }}}
- // {{{ query()
-
- function query($query) {
- $this->last_query = $query;
- $result = odbc_exec($this->connection, $query);
- if (!$result) {
- return $this->raiseError(); // XXX ERRORMSG
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- if (preg_match('/SELECT/i', $query)) {
- $resultObj = new DB_result($this, $result);
- return $resultObj; // XXX ADDREF
- } else {
- return DB_OK;
- }
- }
-
- // }}}
- // {{{ simpleQuery()
-
- /**
- * Send a query to ODBC and return the results as a ODBC resource
- * identifier.
- *
- * @param $query the SQL query
- *
- * @return int returns a valid ODBC result for successful SELECT
- * queries, DB_OK for other successful queries. A DB error code
- * is returned on failure.
- */
- function simpleQuery($query) {
- $this->last_query = $query;
- $result = odbc_exec($this->connection, $query);
- if (!$result) {
- return $this->raiseError(); // XXX ERRORMSG
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- if (preg_match('/SELECT/i', $query)) {
- return $result;
- } else {
- return DB_OK;
- }
- }
-
- // }}}
- // {{{ fetchRow()
-
- function fetchRow($result) {
- $cols = odbc_fetch_into($result, &$row);
- if ($cols == 0) {
- // XXX ERRORMSG
- return false;
- }
- return $row; // XXX ADDREF
- }
-
- // }}}
- // {{{ freeResult()
-
- function freeResult($result) {
- $err = odbc_free_result($result); // XXX ERRORMSG
- return $err;
- }
-
- // }}}
- // {{{ quoteString()
-
- function quoteString($string) {
- return str_replace("'", "''", $string);
- }
-
- // }}}
-
- // prepare
- // execute
- // errorCode
- // errorMsg
- // errorNative
- // longReadlen
- // binMode
- // autoCommit
- // commit
- // rollback
- }
-
- // Local variables:
- // tab-width: 4
- // c-basic-offset: 4
- // End:
- ?>
-