silverstripe-mssql/code/MSSQLAzureDatabase.php

71 lines
2.2 KiB
PHP

<?php
/**
* Specific support for SQL Azure databases running on Windows Azure.
* "sqlsrv" for PHP MUST be installed to use SQL Azure. It does not support
* the mssql_*() functions in PHP, as SQL Azure is Windows only.
*
* Some important things about SQL Azure:
*
* Selecting a database is not supported.
* In order to change the database currently in use, you need to connect to
* the database using the "Database" parameter with sqlsrv_connect()
*
* Multiple active result sets are not supported. This means you can't
* have two query results open at once.
*
* Fulltext indexes are not supported.
*
* @author Sean Harvey <sean at silverstripe dot com>
* @package mssql
*/
class MSSQLAzureDatabase extends MSSQLDatabase {
protected $fullTextEnabled = false;
public function __construct($parameters) {
$this->connectDatabase($parameters);
}
/**
* Connect to a SQL Azure database with the given parameters.
* @param array $parameters Connection parameters set by environment
* @return resource SQL Azure database connection link
*/
protected function connectDatabase($parameters) {
$this->dbConn = sqlsrv_connect($parameters['server'], array(
'Database' => $parameters['database'],
'UID' => $parameters['username'],
'PWD' => $parameters['password'],
'MultipleActiveResultSets' => '0'
));
$this->tableList = $this->fieldList = $this->indexList = null;
$this->database = $parameters['database'];
$this->active = true;
$this->mssql = false; // mssql functions don't work with this database
$this->fullTextEnabled = false;
$this->query('SET QUOTED_IDENTIFIER ON');
$this->query('SET TEXTSIZE 2147483647');
}
/**
* Switches to the given database.
*
* If the database doesn't exist, you should call
* createDatabase() after calling selectDatabase()
*
* IMPORTANT: SQL Azure doesn't support "USE", so we need
* to reinitialize the database connection with the requested
* database name.
*
* @param string $dbname The database name to switch to
*/
public function selectDatabase($dbname) {
global $databaseConfig;
$parameters = $databaseConfig;
$parameters['database'] = $dbname;
$this->connectDatabase($parameters);
}
}