mirror of
https://github.com/phpbb/phpbb.git
synced 2025-05-08 16:45:19 +02:00
380 lines
9.6 KiB
PHP
380 lines
9.6 KiB
PHP
<?php
|
|
/**
|
|
*
|
|
* @package dbal
|
|
* @version $Id$
|
|
* @copyright (c) 2005 phpBB Group
|
|
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @ignore
|
|
*/
|
|
if (!defined('IN_PHPBB'))
|
|
{
|
|
exit;
|
|
}
|
|
|
|
include_once(PHPBB_ROOT_PATH . 'includes/db/dbal.' . PHP_EXT);
|
|
|
|
/**
|
|
* Unified ODBC functions
|
|
* Unified ODBC functions support any database having ODBC driver, for example Adabas D, IBM DB2, iODBC, Solid, Sybase SQL Anywhere...
|
|
* Here we only support MSSQL Server 2000+ because of the provided schema
|
|
*
|
|
* @note number of bytes returned for returning data depends on odbc.defaultlrl php.ini setting.
|
|
* If it is limited to 4K for example only 4K of data is returned max, resulting in incomplete theme data for example.
|
|
* @note odbc.defaultbinmode may affect UTF8 characters
|
|
*
|
|
* @package dbal
|
|
*/
|
|
class phpbb_dbal_mssql_odbc extends phpbb_dbal
|
|
{
|
|
/**
|
|
* @var string Database type. No distinction between versions or used extensions.
|
|
*/
|
|
public $dbms_type = 'mssql';
|
|
|
|
/**
|
|
* @var array Database type map, column layout information
|
|
*/
|
|
public $dbms_type_map = array(
|
|
'INT:' => '[int]',
|
|
'BINT' => '[float]',
|
|
'UINT' => '[int]',
|
|
'UINT:' => '[int]',
|
|
'TINT:' => '[int]',
|
|
'USINT' => '[int]',
|
|
'BOOL' => '[int]',
|
|
'VCHAR' => '[varchar] (255)',
|
|
'VCHAR:' => '[varchar] (%d)',
|
|
'CHAR:' => '[char] (%d)',
|
|
'XSTEXT' => '[varchar] (1000)',
|
|
'STEXT' => '[varchar] (3000)',
|
|
'TEXT' => '[varchar] (8000)',
|
|
'MTEXT' => '[text]',
|
|
'XSTEXT_UNI'=> '[varchar] (100)',
|
|
'STEXT_UNI' => '[varchar] (255)',
|
|
'TEXT_UNI' => '[varchar] (4000)',
|
|
'MTEXT_UNI' => '[text]',
|
|
'TIMESTAMP' => '[int]',
|
|
'DECIMAL' => '[float]',
|
|
'DECIMAL:' => '[float]',
|
|
'PDECIMAL' => '[float]',
|
|
'PDECIMAL:' => '[float]',
|
|
'VCHAR_UNI' => '[varchar] (255)',
|
|
'VCHAR_UNI:'=> '[varchar] (%d)',
|
|
'VARBINARY' => '[varchar] (255)',
|
|
);
|
|
|
|
/**
|
|
* Connect to server. See {@link phpbb_dbal::sql_connect() sql_connect()} for details.
|
|
*/
|
|
public function sql_connect($server, $user, $password, $database, $port = false, $persistency = false , $new_link = false)
|
|
{
|
|
$this->persistency = $persistency;
|
|
$this->user = $user;
|
|
$this->dbname = $database;
|
|
$this->port = $port;
|
|
|
|
$port_delimiter = (defined('PHP_OS') && substr(PHP_OS, 0, 3) === 'WIN') ? ',' : ':';
|
|
$this->server = $server . (($port) ? $port_delimiter . $port : '');
|
|
|
|
$max_size = @ini_get('odbc.defaultlrl');
|
|
if (!empty($max_size))
|
|
{
|
|
$unit = strtolower(substr($max_size, -1, 1));
|
|
$max_size = (int) $max_size;
|
|
|
|
if ($unit == 'k')
|
|
{
|
|
$max_size = floor($max_size / 1024);
|
|
}
|
|
else if ($unit == 'g')
|
|
{
|
|
$max_size *= 1024;
|
|
}
|
|
else if (is_numeric($unit))
|
|
{
|
|
$max_size = floor((int) ($max_size . $unit) / 1048576);
|
|
}
|
|
$max_size = max(8, $max_size) . 'M';
|
|
|
|
@ini_set('odbc.defaultlrl', $max_size);
|
|
}
|
|
|
|
$this->db_connect_id = ($this->persistency) ? @odbc_pconnect($this->server, $this->user, $password) : @odbc_connect($this->server, $this->user, $password);
|
|
|
|
return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
|
|
}
|
|
|
|
/**
|
|
* Version information about used database. See {@link phpbb_dbal::sql_server_info() sql_server_info()} for details.
|
|
*/
|
|
public function sql_server_info($raw = false)
|
|
{
|
|
if (!phpbb::registered('acm') || ($this->sql_server_version = phpbb::$acm->get('#mssqlodbc_version')) === false)
|
|
{
|
|
$result_id = @odbc_exec($this->db_connect_id, "SELECT SERVERPROPERTY('productversion'), SERVERPROPERTY('productlevel'), SERVERPROPERTY('edition')");
|
|
|
|
$row = false;
|
|
if ($result_id)
|
|
{
|
|
$row = @odbc_fetch_array($result_id);
|
|
@odbc_free_result($result_id);
|
|
}
|
|
|
|
$this->sql_server_version = ($row) ? trim(implode(' ', $row)) : 0;
|
|
|
|
if (phpbb::registered('acm'))
|
|
{
|
|
phpbb::$acm->put('#mssqlodbc_version', $this->sql_server_version);
|
|
}
|
|
}
|
|
|
|
if ($raw)
|
|
{
|
|
return $this->sql_server_version;
|
|
}
|
|
|
|
return ($this->sql_server_version) ? 'MSSQL (ODBC)<br />' . $this->sql_server_version : 'MSSQL (ODBC)';
|
|
}
|
|
|
|
/**
|
|
* DB-specific base query method. See {@link phpbb_dbal::_sql_query() _sql_query()} for details.
|
|
*/
|
|
protected function _sql_query($query)
|
|
{
|
|
return @odbc_exec($this->db_connect_id, $query);
|
|
}
|
|
|
|
/**
|
|
* Build LIMIT query and run it. See {@link phpbb_dbal::_sql_query_limit() _sql_query_limit()} for details.
|
|
*/
|
|
protected function _sql_query_limit($query, $total, $offset, $cache_ttl)
|
|
{
|
|
// Since TOP is only returning a set number of rows we won't need it if total is set to 0 (return all rows)
|
|
if ($total)
|
|
{
|
|
// We need to grab the total number of rows + the offset number of rows to get the correct result
|
|
if (strpos($query, 'SELECT DISTINCT') === 0)
|
|
{
|
|
$query = 'SELECT DISTINCT TOP ' . ($total + $offset) . ' ' . substr($query, 15);
|
|
}
|
|
else
|
|
{
|
|
$query = 'SELECT TOP ' . ($total + $offset) . ' ' . substr($query, 6);
|
|
}
|
|
}
|
|
|
|
$result = $this->sql_query($query, $cache_ttl);
|
|
|
|
// Seek by $offset rows
|
|
if ($offset)
|
|
{
|
|
// We do not fetch the row for rownum == 0 because then the next resultset would be the second row
|
|
for ($i = 0; $i < $offset; $i++)
|
|
{
|
|
if (!$this->sql_fetchrow($result))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Close sql connection. See {@link phpbb_dbal::_sql_close() _sql_close()} for details.
|
|
*/
|
|
protected function _sql_close()
|
|
{
|
|
return @odbc_close($this->db_connect_id);
|
|
}
|
|
|
|
/**
|
|
* SQL Transaction. See {@link phpbb_dbal::_sql_transaction() _sql_transaction()} for details.
|
|
*/
|
|
protected function _sql_transaction($status)
|
|
{
|
|
switch ($status)
|
|
{
|
|
case 'begin':
|
|
return @odbc_exec($this->db_connect_id, 'BEGIN TRANSACTION');
|
|
break;
|
|
|
|
case 'commit':
|
|
return @odbc_exec($this->db_connect_id, 'COMMIT TRANSACTION');
|
|
break;
|
|
|
|
case 'rollback':
|
|
return @odbc_exec($this->db_connect_id, 'ROLLBACK TRANSACTION');
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return number of affected rows. See {@link phpbb_dbal::sql_affectedrows() sql_affectedrows()} for details.
|
|
*/
|
|
public function sql_affectedrows()
|
|
{
|
|
return ($this->db_connect_id) ? @odbc_num_rows($this->query_result) : false;
|
|
}
|
|
|
|
/**
|
|
* Get last inserted id after insert statement. See {@link phpbb_dbal::sql_nextid() sql_nextid()} for details.
|
|
*/
|
|
public function sql_nextid()
|
|
{
|
|
$result_id = @odbc_exec($this->db_connect_id, 'SELECT @@IDENTITY');
|
|
|
|
if ($result_id)
|
|
{
|
|
if (@odbc_fetch_array($result_id))
|
|
{
|
|
$id = @odbc_result($result_id, 1);
|
|
@odbc_free_result($result_id);
|
|
return $id;
|
|
}
|
|
@odbc_free_result($result_id);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Fetch current row. See {@link phpbb_dbal::_sql_fetchrow() _sql_fetchrow()} for details.
|
|
* @note number of bytes returned depends on odbc.defaultlrl php.ini setting. If it is limited to 4K for example only 4K of data is returned max.
|
|
*/
|
|
protected function _sql_fetchrow($query_id)
|
|
{
|
|
return @odbc_fetch_array($query_id);
|
|
}
|
|
|
|
/**
|
|
* Free query result. See {@link phpbb_dbal::_sql_freeresult() _sql_freeresult()} for details.
|
|
*/
|
|
protected function _sql_freeresult($query_id)
|
|
{
|
|
return @odbc_free_result($query_id);
|
|
}
|
|
|
|
/**
|
|
* Correctly adjust LIKE expression for special characters. See {@link phpbb_dbal::_sql_like_expression() _sql_like_expression()} for details.
|
|
*/
|
|
protected function _sql_like_expression($expression)
|
|
{
|
|
return $expression . " ESCAPE '\\'";
|
|
}
|
|
|
|
/**
|
|
* Escape string used in sql query. See {@link phpbb_dbal::sql_escape() sql_escape()} for details.
|
|
*/
|
|
public function sql_escape($msg)
|
|
{
|
|
return str_replace(array("'", "\0"), array("''", ''), $msg);
|
|
}
|
|
|
|
/**
|
|
* Expose a DBMS specific function. See {@link phpbb_dbal::sql_function() sql_function()} for details.
|
|
*/
|
|
public function sql_function($type, $col)
|
|
{
|
|
switch ($type)
|
|
{
|
|
case 'length_varchar':
|
|
case 'length_text':
|
|
return 'DATALENGTH(' . $col . ')';
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle data by using prepared statements. See {@link phpbb_dbal::sql_handle_data() sql_handle_data()} for details.
|
|
public function sql_handle_data($type, $table, $data, $where = '')
|
|
{
|
|
if ($type === 'INSERT')
|
|
{
|
|
$stmt = odbc_prepare($this->db_connect_id, "INSERT INTO $table (". implode(', ', array_keys($data)) . ") VALUES (" . substr(str_repeat('?, ', sizeof($data)) ,0, -1) . ')');
|
|
}
|
|
else
|
|
{
|
|
$query = "UPDATE $table SET ";
|
|
|
|
$set = array();
|
|
foreach (array_keys($data) as $key)
|
|
{
|
|
$set[] = "$key = ?";
|
|
}
|
|
$query .= implode(', ', $set);
|
|
|
|
if ($where !== '')
|
|
{
|
|
$query .= $where;
|
|
}
|
|
|
|
$stmt = odbc_prepare($this->db_connect_id, $query);
|
|
}
|
|
|
|
// get the stmt onto the top of the function arguments
|
|
array_unshift($data, $stmt);
|
|
|
|
call_user_func_array('odbc_execute', $data);
|
|
}
|
|
*/
|
|
|
|
/**
|
|
* Build DB-specific query bits. See {@link phpbb_dbal::_sql_custom_build() _sql_custom_build()} for details.
|
|
*/
|
|
protected function _sql_custom_build($stage, $data)
|
|
{
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* return sql error array. See {@link phpbb_dbal::_sql_error() _sql_error()} for details.
|
|
*/
|
|
protected function _sql_error()
|
|
{
|
|
return array(
|
|
'message' => @odbc_errormsg(),
|
|
'code' => @odbc_error()
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Run DB-specific code to build SQL Report to explain queries, show statistics and runtime information. See {@link phpbb_dbal::_sql_report() _sql_report()} for details.
|
|
*/
|
|
protected function _sql_report($mode, $query = '')
|
|
{
|
|
switch ($mode)
|
|
{
|
|
case 'start':
|
|
break;
|
|
|
|
case 'fromcache':
|
|
$endtime = explode(' ', microtime());
|
|
$endtime = $endtime[0] + $endtime[1];
|
|
|
|
$result = @odbc_exec($this->db_connect_id, $query);
|
|
while ($void = @odbc_fetch_array($result))
|
|
{
|
|
// Take the time spent on parsing rows into account
|
|
}
|
|
@odbc_free_result($result);
|
|
|
|
$splittime = explode(' ', microtime());
|
|
$splittime = $splittime[0] + $splittime[1];
|
|
|
|
$this->sql_report('record_fromcache', $query, $endtime, $splittime);
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
?>
|