silverstripe-mssql/code/MSSQLDatabaseConfigurationHelper.php

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<?php
/**
* This is a helper class for the SS installer.
*
* It does all the specific checking for MSSQLDatabase
* to ensure that the configuration is setup correctly.
*
* @package mssql
*/
class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
/**
* Ensure that the database function for connectivity is available.
* If it is, we assume the PHP module for this database has been setup correctly.
*
* @param array $databaseConfig Associative array of database configuration, e.g. "server", "username" etc
* @return boolean
*/
public function requireDatabaseFunctions($databaseConfig) {
return (function_exists('mssql_connect') || function_exists('sqlsrv_connect')) ? true : false;
}
/**
* Ensure that the database server exists.
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('success' => true, 'error' => 'details of error')
*/
public function requireDatabaseServer($databaseConfig) {
$success = false;
$error = '';
if(function_exists('mssql_connect')) {
$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
} else {
$conn = @sqlsrv_connect($databaseConfig['server'], array(
'UID' => $databaseConfig['username'],
'PWD' => $databaseConfig['password']
));
}
if($conn) {
$success = true;
} else {
$success = false;
$error = 'SQL Server requires a valid username and password to determine if the server exists.';
}
return array(
'success' => $success,
'error' => $error
);
}
/**
* Ensure a database connection is possible using credentials provided.
* The established connection resource is returned with the results as well.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('success' => true, 'connection' => mssql link, 'error' => 'details of error')
*/
public function requireDatabaseConnection($databaseConfig) {
$success = false;
$error = '';
if(function_exists('mssql_connect')) {
$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
} else {
$conn = @sqlsrv_connect($databaseConfig['server'], array(
'UID' => $databaseConfig['username'],
'PWD' => $databaseConfig['password']
));
}
if($conn) {
$success = true;
} else {
$success = false;
$error = '';
}
return array(
'success' => $success,
'connection' => $conn,
'error' => $error
);
}
/**
* Ensure that the database connection is able to use an existing database,
* or be able to create one if it doesn't exist.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('success' => true, 'alreadyExists' => 'true')
*/
public function requireDatabaseOrCreatePermissions($databaseConfig) {
$success = false;
$alreadyExists = false;
$check = $this->requireDatabaseConnection($databaseConfig);
$conn = $check['connection'];
if(
(function_exists('mssql_select_db') && @mssql_select_db($databaseConfig['database'], $conn))
||
(function_exists('sqlsrv_select_db') && @sqlsrv_select_db($conn, $databaseConfig['database']))
) {
$success = true;
$alreadyExists = true;
} else {
if(function_exists('mssql_query') && mssql_query("CREATE DATABASE testing123", $conn)) {
mssql_query("DROP DATABASE testing123", $conn);
$success = true;
$alreadyExists = false;
} elseif(function_exists('sqlsrv_query') && @sqlsrv_query($conn, "CREATE DATABASE testing123")) {
sqlsrv_query($conn, "DROP DATABASE testing123");
$success = true;
$alreadyExists = false;
}
}
return array(
'success' => $success,
'alreadyExists' => $alreadyExists
);
}
}