mirror of
https://github.com/atlanticbiomedical/portal-legacy.git
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283 lines
8.6 KiB
PHP
Executable File
283 lines
8.6 KiB
PHP
Executable File
<?php
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/*
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* $Id: MSSQLConnection.php,v 1.25 2005/10/17 19:03:51 dlawson_mi Exp $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://creole.phpdb.org>.
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*/
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require_once 'creole/Connection.php';
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require_once 'creole/common/ConnectionCommon.php';
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include_once 'creole/drivers/mssql/MSSQLResultSet.php';
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/**
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* MS SQL Server implementation of Connection.
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*
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* If you have trouble with BLOB / CLOB support
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* --------------------------------------------
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*
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* You may need to change some PHP ini settings. In particular, the following settings
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* set the text size to maximum which should get around issues with truncated data:
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* <code>
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* ini_set('mssql.textsize', 2147483647);
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* ini_set('mssql.textlimit', 2147483647);
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* </code>
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* We do not set these by default (anymore) because they do not apply to cases where MSSQL
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* is being used w/ FreeTDS.
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*
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* @author Hans Lellelid <hans@xmpl.org>
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* @author Stig Bakken <ssb@fast.no>
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* @author Lukas Smith
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* @version $Revision: 1.25 $
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* @package creole.drivers.mssql
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*/
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class MSSQLConnection extends ConnectionCommon implements Connection {
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/** Current database (used in mssql_select_db()). */
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private $database;
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/**
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* @see Connection::connect()
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*/
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function connect($dsninfo, $flags = 0)
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{
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if (!extension_loaded('mssql') && !extension_loaded('sybase') && !extension_loaded('sybase_ct')) {
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throw new SQLException('mssql extension not loaded');
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}
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$this->dsn = $dsninfo;
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$this->flags = $flags;
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$persistent = ($flags & Creole::PERSISTENT === Creole::PERSISTENT);
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$user = $dsninfo['username'];
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$pw = $dsninfo['password'];
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$dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
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if (PHP_OS == "WINNT" || PHP_OS == "WIN32") {
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$portDelimiter = ",";
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} else {
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$portDelimiter = ":";
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}
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if(!empty($dsninfo['port'])) {
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$dbhost .= $portDelimiter.$dsninfo['port'];
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} else {
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$dbhost .= $portDelimiter.'1433';
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}
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$connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
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if ($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, $user);
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} else {
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$conn = @$connect_function($dbhost);
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}
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if (!$conn) {
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throw new SQLException('connect failed', mssql_get_last_message());
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}
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if ($dsninfo['database']) {
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if (!@mssql_select_db($dsninfo['database'], $conn)) {
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throw new SQLException('No database selected');
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}
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$this->database = $dsninfo['database'];
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}
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$this->dblink = $conn;
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}
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/**
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* @see Connection::getDatabaseInfo()
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*/
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public function getDatabaseInfo()
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{
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require_once 'creole/drivers/mssql/metadata/MSSQLDatabaseInfo.php';
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return new MSSQLDatabaseInfo($this);
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}
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/**
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* @see Connection::getIdGenerator()
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*/
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public function getIdGenerator()
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{
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require_once 'creole/drivers/mssql/MSSQLIdGenerator.php';
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return new MSSQLIdGenerator($this);
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}
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/**
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* @see Connection::prepareStatement()
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*/
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public function prepareStatement($sql)
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{
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require_once 'creole/drivers/mssql/MSSQLPreparedStatement.php';
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return new MSSQLPreparedStatement($this, $sql);
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}
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/**
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* @see Connection::createStatement()
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*/
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public function createStatement()
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{
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require_once 'creole/drivers/mssql/MSSQLStatement.php';
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return new MSSQLStatement($this);
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}
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/**
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* Returns false since MSSQL doesn't support this method.
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*/
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public function applyLimit(&$sql, $offset, $limit)
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{
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return false;
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}
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/**
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* @see Connection::close()
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*/
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function close()
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{
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$ret = @mssql_close($this->dblink);
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$this->dblink = null;
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return $ret;
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}
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/**
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* @see Connection::executeQuery()
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*/
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function executeQuery($sql, $fetchmode = null)
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{
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$this->lastQuery = $sql;
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if (!@mssql_select_db($this->database, $this->dblink)) {
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throw new SQLException('No database selected');
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}
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$result = @mssql_query($sql, $this->dblink);
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if (!$result) {
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throw new SQLException('Could not execute query', mssql_get_last_message());
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}
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return new MSSQLResultSet($this, $result, $fetchmode);
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}
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/**
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* @see Connection::executeUpdate()
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*/
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function executeUpdate($sql)
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{
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$this->lastQuery = $sql;
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if (!mssql_select_db($this->database, $this->dblink)) {
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throw new SQLException('No database selected');
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}
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$result = @mssql_query($sql, $this->dblink);
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if (!$result) {
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throw new SQLException('Could not execute update', mssql_get_last_message(), $sql);
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}
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return $this->getUpdateCount();
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}
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/**
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* Start a database transaction.
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* @throws SQLException
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* @return void
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*/
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protected function beginTrans()
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{
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$result = @mssql_query('BEGIN TRAN', $this->dblink);
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if (!$result) {
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throw new SQLException('Could not begin transaction', mssql_get_last_message());
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}
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}
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/**
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* Commit the current transaction.
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* @throws SQLException
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* @return void
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*/
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protected function commitTrans()
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{
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if (!@mssql_select_db($this->database, $this->dblink)) {
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throw new SQLException('No database selected');
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}
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$result = @mssql_query('COMMIT TRAN', $this->dblink);
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if (!$result) {
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throw new SQLException('Could not commit transaction', mssql_get_last_message());
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}
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}
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/**
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* Roll back (undo) the current transaction.
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* @throws SQLException
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* @return void
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*/
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protected function rollbackTrans()
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{
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if (!@mssql_select_db($this->database, $this->dblink)) {
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throw new SQLException('no database selected');
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}
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$result = @mssql_query('ROLLBACK TRAN', $this->dblink);
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if (!$result) {
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throw new SQLException('Could not rollback transaction', mssql_get_last_message());
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}
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}
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/**
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* Gets the number of rows affected by the last query.
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* if the last query was a select, returns 0.
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*
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* @return int Number of rows affected by the last query
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* @throws SQLException
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*/
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function getUpdateCount()
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{
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$res = @mssql_query('select @@rowcount', $this->dblink);
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if (!$res) {
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throw new SQLException('Unable to get affected row count', mssql_get_last_message());
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}
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$ar = @mssql_fetch_row($res);
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if (!$ar) {
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$result = 0;
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} else {
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@mssql_free_result($res);
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$result = $ar[0];
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}
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return $result;
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}
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/**
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* Creates a CallableStatement object for calling database stored procedures.
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*
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* @param string $sql
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* @return CallableStatement
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* @throws SQLException
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*/
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function prepareCall($sql)
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{
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require_once 'creole/drivers/mssql/MSSQLCallableStatement.php';
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$stmt = mssql_init($sql);
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if (!$stmt) {
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throw new SQLException('Unable to prepare statement', mssql_get_last_message(), $sql);
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}
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return new MSSQLCallableStatement($this, $stmt);
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}
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} |