You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
662 lines
21 KiB
PHP
662 lines
21 KiB
PHP
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Db
|
|
* @subpackage Adapter
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
|
|
/**
|
|
* @see Zend_Db_Adapter_Abstract
|
|
*/
|
|
require_once 'Zend/Db/Adapter/Abstract.php';
|
|
|
|
/**
|
|
* @see Zend_Db_Statement_Sqlsrv
|
|
*/
|
|
require_once 'Zend/Db/Statement/Sqlsrv.php';
|
|
|
|
/**
|
|
* @category Zend
|
|
* @package Zend_Db
|
|
* @subpackage Adapter
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Db_Adapter_Sqlsrv extends Zend_Db_Adapter_Abstract
|
|
{
|
|
/**
|
|
* User-provided configuration.
|
|
*
|
|
* Basic keys are:
|
|
*
|
|
* username => (string) Connect to the database as this username.
|
|
* password => (string) Password associated with the username.
|
|
* dbname => The name of the local SQL Server instance
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $_config = array(
|
|
'dbname' => null,
|
|
'username' => null,
|
|
'password' => null,
|
|
);
|
|
|
|
/**
|
|
* Last insert id from INSERT query
|
|
*
|
|
* @var int
|
|
*/
|
|
protected $_lastInsertId;
|
|
|
|
/**
|
|
* Query used to fetch last insert id
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_lastInsertSQL = 'SELECT SCOPE_IDENTITY() as Current_Identity';
|
|
|
|
/**
|
|
* Keys are UPPERCASE SQL datatypes or the constants
|
|
* Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.
|
|
*
|
|
* Values are:
|
|
* 0 = 32-bit integer
|
|
* 1 = 64-bit integer
|
|
* 2 = float or decimal
|
|
*
|
|
* @var array Associative array of datatypes to values 0, 1, or 2.
|
|
*/
|
|
protected $_numericDataTypes = array(
|
|
Zend_Db::INT_TYPE => Zend_Db::INT_TYPE,
|
|
Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE,
|
|
Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE,
|
|
'INT' => Zend_Db::INT_TYPE,
|
|
'SMALLINT' => Zend_Db::INT_TYPE,
|
|
'TINYINT' => Zend_Db::INT_TYPE,
|
|
'BIGINT' => Zend_Db::BIGINT_TYPE,
|
|
'DECIMAL' => Zend_Db::FLOAT_TYPE,
|
|
'FLOAT' => Zend_Db::FLOAT_TYPE,
|
|
'MONEY' => Zend_Db::FLOAT_TYPE,
|
|
'NUMERIC' => Zend_Db::FLOAT_TYPE,
|
|
'REAL' => Zend_Db::FLOAT_TYPE,
|
|
'SMALLMONEY' => Zend_Db::FLOAT_TYPE,
|
|
);
|
|
|
|
/**
|
|
* Default class name for a DB statement.
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_defaultStmtClass = 'Zend_Db_Statement_Sqlsrv';
|
|
|
|
/**
|
|
* Creates a connection resource.
|
|
*
|
|
* @return void
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
protected function _connect()
|
|
{
|
|
if (is_resource($this->_connection)) {
|
|
// connection already exists
|
|
return;
|
|
}
|
|
|
|
if (!extension_loaded('sqlsrv')) {
|
|
/**
|
|
* @see Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception('The Sqlsrv extension is required for this adapter but the extension is not loaded');
|
|
}
|
|
|
|
$serverName = $this->_config['host'];
|
|
if (isset($this->_config['port'])) {
|
|
$port = (integer) $this->_config['port'];
|
|
$serverName .= ', ' . $port;
|
|
}
|
|
|
|
$connectionInfo = array(
|
|
'Database' => $this->_config['dbname'],
|
|
);
|
|
|
|
if (isset($this->_config['username']) && isset($this->_config['password']))
|
|
{
|
|
$connectionInfo += array(
|
|
'UID' => $this->_config['username'],
|
|
'PWD' => $this->_config['password'],
|
|
);
|
|
}
|
|
// else - windows authentication
|
|
|
|
if (!empty($this->_config['driver_options'])) {
|
|
foreach ($this->_config['driver_options'] as $option => $value) {
|
|
// A value may be a constant.
|
|
if (is_string($value)) {
|
|
$constantValue = @constant(strtoupper($value));
|
|
if ($constantValue === null) {
|
|
$connectionInfo[$option] = $value;
|
|
} else {
|
|
$connectionInfo[$option] = $constantValue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->_connection = sqlsrv_connect($serverName, $connectionInfo);
|
|
|
|
if (!$this->_connection) {
|
|
/**
|
|
* @see Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check for config options that are mandatory.
|
|
* Throw exceptions if any are missing.
|
|
*
|
|
* @param array $config
|
|
* @throws Zend_Db_Adapter_Exception
|
|
*/
|
|
protected function _checkRequiredOptions(array $config)
|
|
{
|
|
// we need at least a dbname
|
|
if (! array_key_exists('dbname', $config)) {
|
|
/** @see Zend_Db_Adapter_Exception */
|
|
require_once 'Zend/Db/Adapter/Exception.php';
|
|
throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'dbname' that names the database instance");
|
|
}
|
|
|
|
if (! array_key_exists('password', $config) && array_key_exists('username', $config)) {
|
|
/**
|
|
* @see Zend_Db_Adapter_Exception
|
|
*/
|
|
require_once 'Zend/Db/Adapter/Exception.php';
|
|
throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'password' for login credentials.
|
|
If Windows Authentication is desired, both keys 'username' and 'password' should be ommited from config.");
|
|
}
|
|
|
|
if (array_key_exists('password', $config) && !array_key_exists('username', $config)) {
|
|
/**
|
|
* @see Zend_Db_Adapter_Exception
|
|
*/
|
|
require_once 'Zend/Db/Adapter/Exception.php';
|
|
throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'username' for login credentials.
|
|
If Windows Authentication is desired, both keys 'username' and 'password' should be ommited from config.");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the transaction isoltion level.
|
|
*
|
|
* @param integer|null $level A fetch mode from SQLSRV_TXN_*.
|
|
* @return true
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
public function setTransactionIsolationLevel($level = null)
|
|
{
|
|
$this->_connect();
|
|
$sql = null;
|
|
|
|
// Default transaction level in sql server
|
|
if ($level === null)
|
|
{
|
|
$level = SQLSRV_TXN_READ_COMMITTED;
|
|
}
|
|
|
|
switch ($level) {
|
|
case SQLSRV_TXN_READ_UNCOMMITTED:
|
|
$sql = "READ UNCOMMITTED";
|
|
break;
|
|
case SQLSRV_TXN_READ_COMMITTED:
|
|
$sql = "READ COMMITTED";
|
|
break;
|
|
case SQLSRV_TXN_REPEATABLE_READ:
|
|
$sql = "REPEATABLE READ";
|
|
break;
|
|
case SQLSRV_TXN_SNAPSHOT:
|
|
$sql = "SNAPSHOT";
|
|
break;
|
|
case SQLSRV_TXN_SERIALIZABLE:
|
|
$sql = "SERIALIZABLE";
|
|
break;
|
|
default:
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception("Invalid transaction isolation level mode '$level' specified");
|
|
}
|
|
|
|
if (!sqlsrv_query($this->_connection, "SET TRANSACTION ISOLATION LEVEL $sql;")) {
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception("Transaction cannot be changed to '$level'");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Test if a connection is active
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isConnected()
|
|
{
|
|
return (is_resource($this->_connection)
|
|
&& (get_resource_type($this->_connection) == 'SQL Server Connection')
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Force the connection to close.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function closeConnection()
|
|
{
|
|
if ($this->isConnected()) {
|
|
sqlsrv_close($this->_connection);
|
|
}
|
|
$this->_connection = null;
|
|
}
|
|
|
|
/**
|
|
* Returns an SQL statement for preparation.
|
|
*
|
|
* @param string $sql The SQL statement with placeholders.
|
|
* @return Zend_Db_Statement_Sqlsrv
|
|
*/
|
|
public function prepare($sql)
|
|
{
|
|
$this->_connect();
|
|
$stmtClass = $this->_defaultStmtClass;
|
|
|
|
if (!class_exists($stmtClass)) {
|
|
/**
|
|
* @see Zend_Loader
|
|
*/
|
|
require_once 'Zend/Loader.php';
|
|
Zend_Loader::loadClass($stmtClass);
|
|
}
|
|
|
|
$stmt = new $stmtClass($this, $sql);
|
|
$stmt->setFetchMode($this->_fetchMode);
|
|
return $stmt;
|
|
}
|
|
|
|
/**
|
|
* Quote a raw string.
|
|
*
|
|
* @param string $value Raw string
|
|
* @return string Quoted string
|
|
*/
|
|
protected function _quote($value)
|
|
{
|
|
if (is_int($value)) {
|
|
return $value;
|
|
} elseif (is_float($value)) {
|
|
return sprintf('%F', $value);
|
|
}
|
|
|
|
return "'" . str_replace("'", "''", $value) . "'";
|
|
}
|
|
|
|
/**
|
|
* Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column.
|
|
*
|
|
* As a convention, on RDBMS brands that support sequences
|
|
* (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
|
|
* from the arguments and returns the last id generated by that sequence.
|
|
* On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
|
|
* returns the last value generated for such a column, and the table name
|
|
* argument is disregarded.
|
|
*
|
|
* @param string $tableName OPTIONAL Name of table.
|
|
* @param string $primaryKey OPTIONAL Name of primary key column.
|
|
* @return string
|
|
*/
|
|
public function lastInsertId($tableName = null, $primaryKey = null)
|
|
{
|
|
if ($tableName) {
|
|
$tableName = $this->quote($tableName);
|
|
$sql = 'SELECT IDENT_CURRENT (' . $tableName . ') as Current_Identity';
|
|
return (string) $this->fetchOne($sql);
|
|
}
|
|
|
|
if ($this->_lastInsertId > 0) {
|
|
return (string) $this->_lastInsertId;
|
|
}
|
|
|
|
$sql = $this->_lastInsertSQL;
|
|
return (string) $this->fetchOne($sql);
|
|
}
|
|
|
|
/**
|
|
* Inserts a table row with specified data.
|
|
*
|
|
* @param mixed $table The table to insert data into.
|
|
* @param array $bind Column-value pairs.
|
|
* @return int The number of affected rows.
|
|
*/
|
|
public function insert($table, array $bind)
|
|
{
|
|
// extract and quote col names from the array keys
|
|
$cols = array();
|
|
$vals = array();
|
|
foreach ($bind as $col => $val) {
|
|
$cols[] = $this->quoteIdentifier($col, true);
|
|
if ($val instanceof Zend_Db_Expr) {
|
|
$vals[] = $val->__toString();
|
|
unset($bind[$col]);
|
|
} else {
|
|
$vals[] = '?';
|
|
}
|
|
}
|
|
|
|
// build the statement
|
|
$sql = "INSERT INTO "
|
|
. $this->quoteIdentifier($table, true)
|
|
. ' (' . implode(', ', $cols) . ') '
|
|
. 'VALUES (' . implode(', ', $vals) . ')'
|
|
. ' ' . $this->_lastInsertSQL;
|
|
|
|
// execute the statement and return the number of affected rows
|
|
$stmt = $this->query($sql, array_values($bind));
|
|
$result = $stmt->rowCount();
|
|
|
|
$stmt->nextRowset();
|
|
|
|
$this->_lastInsertId = $stmt->fetchColumn();
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Returns a list of the tables in the database.
|
|
*
|
|
* @return array
|
|
*/
|
|
public function listTables()
|
|
{
|
|
$this->_connect();
|
|
$sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
|
|
return $this->fetchCol($sql);
|
|
}
|
|
|
|
/**
|
|
* Returns the column descriptions for a table.
|
|
*
|
|
* The return value is an associative array keyed by the column name,
|
|
* as returned by the RDBMS.
|
|
*
|
|
* The value of each array element is an associative array
|
|
* with the following keys:
|
|
*
|
|
* SCHEMA_NAME => string; name of schema
|
|
* TABLE_NAME => string;
|
|
* COLUMN_NAME => string; column name
|
|
* COLUMN_POSITION => number; ordinal position of column in table
|
|
* DATA_TYPE => string; SQL datatype name of column
|
|
* DEFAULT => string; default expression of column, null if none
|
|
* NULLABLE => boolean; true if column can have nulls
|
|
* LENGTH => number; length of CHAR/VARCHAR
|
|
* SCALE => number; scale of NUMERIC/DECIMAL
|
|
* PRECISION => number; precision of NUMERIC/DECIMAL
|
|
* UNSIGNED => boolean; unsigned property of an integer type
|
|
* PRIMARY => boolean; true if column is part of the primary key
|
|
* PRIMARY_POSITION => integer; position of column in primary key
|
|
* IDENTITY => integer; true if column is auto-generated with unique values
|
|
*
|
|
* @todo Discover integer unsigned property.
|
|
*
|
|
* @param string $tableName
|
|
* @param string $schemaName OPTIONAL
|
|
* @return array
|
|
*/
|
|
public function describeTable($tableName, $schemaName = null)
|
|
{
|
|
/**
|
|
* Discover metadata information about this table.
|
|
*/
|
|
$sql = "exec sp_columns @table_name = " . $this->quoteIdentifier($tableName, true);
|
|
$stmt = $this->query($sql);
|
|
$result = $stmt->fetchAll(Zend_Db::FETCH_NUM);
|
|
|
|
$owner = 1;
|
|
$table_name = 2;
|
|
$column_name = 3;
|
|
$type_name = 5;
|
|
$precision = 6;
|
|
$length = 7;
|
|
$scale = 8;
|
|
$nullable = 10;
|
|
$column_def = 12;
|
|
$column_position = 16;
|
|
|
|
/**
|
|
* Discover primary key column(s) for this table.
|
|
*/
|
|
$tableOwner = $result[0][$owner];
|
|
$sql = "exec sp_pkeys @table_owner = " . $tableOwner
|
|
. ", @table_name = " . $this->quoteIdentifier($tableName, true);
|
|
$stmt = $this->query($sql);
|
|
|
|
$primaryKeysResult = $stmt->fetchAll(Zend_Db::FETCH_NUM);
|
|
$primaryKeyColumn = array();
|
|
|
|
// Per http://msdn.microsoft.com/en-us/library/ms189813.aspx,
|
|
// results from sp_keys stored procedure are:
|
|
// 0=TABLE_QUALIFIER 1=TABLE_OWNER 2=TABLE_NAME 3=COLUMN_NAME 4=KEY_SEQ 5=PK_NAME
|
|
|
|
$pkey_column_name = 3;
|
|
$pkey_key_seq = 4;
|
|
foreach ($primaryKeysResult as $pkeysRow) {
|
|
$primaryKeyColumn[$pkeysRow[$pkey_column_name]] = $pkeysRow[$pkey_key_seq];
|
|
}
|
|
|
|
$desc = array();
|
|
$p = 1;
|
|
foreach ($result as $key => $row) {
|
|
$identity = false;
|
|
$words = explode(' ', $row[$type_name], 2);
|
|
if (isset($words[0])) {
|
|
$type = $words[0];
|
|
if (isset($words[1])) {
|
|
$identity = (bool) preg_match('/identity/', $words[1]);
|
|
}
|
|
}
|
|
|
|
$isPrimary = array_key_exists($row[$column_name], $primaryKeyColumn);
|
|
if ($isPrimary) {
|
|
$primaryPosition = $primaryKeyColumn[$row[$column_name]];
|
|
} else {
|
|
$primaryPosition = null;
|
|
}
|
|
|
|
$desc[$this->foldCase($row[$column_name])] = array(
|
|
'SCHEMA_NAME' => null, // @todo
|
|
'TABLE_NAME' => $this->foldCase($row[$table_name]),
|
|
'COLUMN_NAME' => $this->foldCase($row[$column_name]),
|
|
'COLUMN_POSITION' => (int) $row[$column_position],
|
|
'DATA_TYPE' => $type,
|
|
'DEFAULT' => $row[$column_def],
|
|
'NULLABLE' => (bool) $row[$nullable],
|
|
'LENGTH' => $row[$length],
|
|
'SCALE' => $row[$scale],
|
|
'PRECISION' => $row[$precision],
|
|
'UNSIGNED' => null, // @todo
|
|
'PRIMARY' => $isPrimary,
|
|
'PRIMARY_POSITION' => $primaryPosition,
|
|
'IDENTITY' => $identity,
|
|
);
|
|
}
|
|
|
|
return $desc;
|
|
}
|
|
|
|
/**
|
|
* Leave autocommit mode and begin a transaction.
|
|
*
|
|
* @return void
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
protected function _beginTransaction()
|
|
{
|
|
if (!sqlsrv_begin_transaction($this->_connection)) {
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Commit a transaction and return to autocommit mode.
|
|
*
|
|
* @return void
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
protected function _commit()
|
|
{
|
|
if (!sqlsrv_commit($this->_connection)) {
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Roll back a transaction and return to autocommit mode.
|
|
*
|
|
* @return void
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
protected function _rollBack()
|
|
{
|
|
if (!sqlsrv_rollback($this->_connection)) {
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the fetch mode.
|
|
*
|
|
* @todo Support FETCH_CLASS and FETCH_INTO.
|
|
*
|
|
* @param integer $mode A fetch mode.
|
|
* @return void
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
public function setFetchMode($mode)
|
|
{
|
|
switch ($mode) {
|
|
case Zend_Db::FETCH_NUM: // seq array
|
|
case Zend_Db::FETCH_ASSOC: // assoc array
|
|
case Zend_Db::FETCH_BOTH: // seq+assoc array
|
|
case Zend_Db::FETCH_OBJ: // object
|
|
$this->_fetchMode = $mode;
|
|
break;
|
|
case Zend_Db::FETCH_BOUND: // bound to PHP variable
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception('FETCH_BOUND is not supported yet');
|
|
break;
|
|
default:
|
|
require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php';
|
|
throw new Zend_Db_Adapter_Sqlsrv_Exception("Invalid fetch mode '$mode' specified");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds an adapter-specific LIMIT clause to the SELECT statement.
|
|
*
|
|
* @param string $sql
|
|
* @param integer $count
|
|
* @param integer $offset OPTIONAL
|
|
* @return string
|
|
* @throws Zend_Db_Adapter_Sqlsrv_Exception
|
|
*/
|
|
public function limit($sql, $count, $offset = 0)
|
|
{
|
|
$count = intval($count);
|
|
if ($count <= 0) {
|
|
require_once 'Zend/Db/Adapter/Exception.php';
|
|
throw new Zend_Db_Adapter_Exception("LIMIT argument count=$count is not valid");
|
|
}
|
|
|
|
$offset = intval($offset);
|
|
if ($offset < 0) {
|
|
/** @see Zend_Db_Adapter_Exception */
|
|
require_once 'Zend/Db/Adapter/Exception.php';
|
|
throw new Zend_Db_Adapter_Exception("LIMIT argument offset=$offset is not valid");
|
|
}
|
|
|
|
$orderby = stristr($sql, 'ORDER BY');
|
|
if ($orderby !== false) {
|
|
$sort = (stripos($orderby, ' desc') !== false) ? 'desc' : 'asc';
|
|
$order = str_ireplace('ORDER BY', '', $orderby);
|
|
$order = trim(preg_replace('/\bASC\b|\bDESC\b/i', '', $order));
|
|
}
|
|
|
|
$sql = preg_replace('/^SELECT\s/i', 'SELECT TOP ' . ($count+$offset) . ' ', $sql);
|
|
|
|
$sql = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $sql . ') AS inner_tbl';
|
|
if ($orderby !== false) {
|
|
$sql .= ' ORDER BY ' . $order . ' ';
|
|
$sql .= (stripos($sort, 'asc') !== false) ? 'DESC' : 'ASC';
|
|
}
|
|
$sql .= ') AS outer_tbl';
|
|
if ($orderby !== false) {
|
|
$sql .= ' ORDER BY ' . $order . ' ' . $sort;
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* Check if the adapter supports real SQL parameters.
|
|
*
|
|
* @param string $type 'positional' or 'named'
|
|
* @return bool
|
|
*/
|
|
public function supportsParameters($type)
|
|
{
|
|
if ($type == 'positional') {
|
|
return true;
|
|
}
|
|
|
|
// if its 'named' or anything else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve server version in PHP style
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getServerVersion()
|
|
{
|
|
$this->_connect();
|
|
$version = sqlsrv_client_info($this->_connection);
|
|
|
|
if ($version !== false) {
|
|
return $version['DriverVer'];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|