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Chris Sewell
2012-11-28 03:55:08 -05:00
parent 7adb399b2e
commit cf140a2e97
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245
lib/symfony/vendor/creole/drivers/sqlite/SQLiteConnection.php vendored Executable file
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<?php
/*
* $Id: SQLiteConnection.php,v 1.15 2006/01/17 19:44:41 hlellelid Exp $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information please see
* <http://creole.phpdb.org>.
*/
require_once 'creole/Connection.php';
require_once 'creole/common/ConnectionCommon.php';
/**
* SQLite implementation of Connection.
*
* @author Hans Lellelid <hans@xmpl.org>
* @author Stig Bakken <ssb@fast.no>
* @author Lukas Smith
* @version $Revision: 1.15 $
* @package creole.drivers.sqlite
*/
class SQLiteConnection extends ConnectionCommon implements Connection {
/**
* The case to use for SQLite results.
* (0=nochange, 1=upper, 2=lower)
* This is set in each call to executeQuery() in order to ensure that different
* Connections do not overwrite each other's settings
*/
private $sqliteAssocCase;
/**
* @see Connection::connect()
*/
function connect($dsninfo, $flags = 0)
{
if (!extension_loaded('sqlite')) {
throw new SQLException('sqlite extension not loaded');
}
$file = $dsninfo['database'];
$this->dsn = $dsninfo;
$this->flags = $flags;
$persistent = ($flags & Creole::PERSISTENT === Creole::PERSISTENT);
if (PHP_VERSION == '5.0.4' || PHP_VERSION == '5.0.5') {
$nochange = TRUE;
} else {
$nochange = !(($flags & Creole::COMPAT_ASSOC_LOWER) === Creole::COMPAT_ASSOC_LOWER);
}
if ($nochange) {
$this->sqliteAssocCase = 0;
} else {
$this->sqliteAssocCase = 2;
}
if ($file === null) {
throw new SQLException("No SQLite database specified.");
}
$mode = (isset($dsninfo['mode']) && is_numeric($dsninfo['mode'])) ? $dsninfo['mode'] : 0644;
if ($file != ':memory:') {
if (!file_exists($file)) {
touch($file);
chmod($file, $mode);
if (!file_exists($file)) {
throw new SQLException("Unable to create SQLite database.");
}
}
if (!is_file($file)) {
throw new SQLException("Unable to open SQLite database: not a valid file.");
}
if (!is_readable($file)) {
throw new SQLException("Unable to read SQLite database.");
}
}
$connect_function = $persistent ? 'sqlite_popen' : 'sqlite_open';
if (!($conn = @$connect_function($file, $mode, $errmsg) )) {
throw new SQLException("Unable to connect to SQLite database", $errmsg);
}
$this->dblink = $conn;
}
/**
* @see Connection::getDatabaseInfo()
*/
public function getDatabaseInfo()
{
require_once 'creole/drivers/sqlite/metadata/SQLiteDatabaseInfo.php';
return new SQLiteDatabaseInfo($this);
}
/**
* @see Connection::getIdGenerator()
*/
public function getIdGenerator()
{
require_once 'creole/drivers/sqlite/SQLiteIdGenerator.php';
return new SQLiteIdGenerator($this);
}
/**
* @see Connection::prepareStatement()
*/
public function prepareStatement($sql)
{
require_once 'creole/drivers/sqlite/SQLitePreparedStatement.php';
return new SQLitePreparedStatement($this, $sql);
}
/**
* @see Connection::prepareCall()
*/
public function prepareCall($sql) {
throw new SQLException('SQLite does not support stored procedures using CallableStatement.');
}
/**
* @see Connection::createStatement()
*/
public function createStatement()
{
require_once 'creole/drivers/sqlite/SQLiteStatement.php';
return new SQLiteStatement($this);
}
/**
* @see Connection::close()
*/
function close()
{
$ret = @sqlite_close($this->dblink);
$this->dblink = null;
return $ret;
}
/**
* @see Connection::applyLimit()
*/
public function applyLimit(&$sql, $offset, $limit)
{
if ( $limit > 0 ) {
$sql .= " LIMIT " . $limit . ($offset > 0 ? " OFFSET " . $offset : "");
} elseif ( $offset > 0 ) {
$sql .= " LIMIT -1 OFFSET " . $offset;
}
}
/**
* @see Connection::executeQuery()
*/
public function executeQuery($sql, $fetchmode = null)
{
ini_set('sqlite.assoc_case', $this->sqliteAssocCase);
$this->lastQuery = $sql;
$result = @sqlite_query($this->dblink, $this->lastQuery);
if (!$result) {
throw new SQLException('Could not execute query', $php_errormsg, $this->lastQuery); //sqlite_error_string(sqlite_last_error($this->dblink))
}
require_once 'creole/drivers/sqlite/SQLiteResultSet.php';
return new SQLiteResultSet($this, $result, $fetchmode);
}
/**
* @see Connection::executeUpdate()
*/
function executeUpdate($sql)
{
$this->lastQuery = $sql;
$result = @sqlite_query($this->dblink, $this->lastQuery);
if (!$result) {
throw new SQLException('Could not execute update', $php_errormsg, $this->lastQuery); //sqlite_error_string(sqlite_last_error($this->dblink))
}
return (int) @sqlite_changes($this->dblink);
}
/**
* Start a database transaction.
* @throws SQLException
* @return void
*/
protected function beginTrans()
{
$result = @sqlite_query($this->dblink, 'BEGIN');
if (!$result) {
throw new SQLException('Could not begin transaction', $php_errormsg); //sqlite_error_string(sqlite_last_error($this->dblink))
}
}
/**
* Commit the current transaction.
* @throws SQLException
* @return void
*/
protected function commitTrans()
{
$result = @sqlite_query($this->dblink, 'COMMIT');
if (!$result) {
throw new SQLException('Can not commit transaction', $php_errormsg); // sqlite_error_string(sqlite_last_error($this->dblink))
}
}
/**
* Roll back (undo) the current transaction.
* @throws SQLException
* @return void
*/
protected function rollbackTrans()
{
$result = @sqlite_query($this->dblink, 'ROLLBACK');
if (!$result) {
throw new SQLException('Could not rollback transaction', $php_errormsg); // sqlite_error_string(sqlite_last_error($this->dblink))
}
}
/**
* Gets the number of rows affected by the data manipulation
* query.
*
* @return int Number of rows affected by the last query.
*/
function getUpdateCount()
{
return (int) @sqlite_changes($this->dblink);
}
}