mirror of
https://github.com/silverstripe/silverstripe-mssql
synced 2024-10-22 08:05:53 +02:00
API Upgraded module to use new database ORM
This commit is contained in:
Damian Mooyman
Damian Mooyman
parent
a9b1e03202
commit
758fe810a5
25
_config/connectors.yml
Normal file
25
_config/connectors.yml
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@ -0,0 +1,25 @@
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---
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name: mssqlconnectors
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---
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Injector:
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# Connect using PDO
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MSSQLPDODatabase:
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class: 'MSSQLDatabase'
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properties:
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connector: %$PDOConnector
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schemaManager: %$MSSQLSchemaManager
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queryBuilder: %$MSSQLQueryBuilder
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# Uses sqlsrv_connect
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MSSQLDatabase:
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class: 'MSSQLDatabase'
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properties:
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connector: %$SQLServerConnector
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schemaManager: %$MSSQLSchemaManager
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queryBuilder: %$MSSQLQueryBuilder
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# Uses sqlsrv_connect to connect to a MS Azure Database
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MSSQLAzureDatabase:
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class: 'MSSQLAzureDatabase'
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properties:
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connector: %$SQLServerConnector
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schemaManager: %$MSSQLSchemaManager
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queryBuilder: %$MSSQLQueryBuilder
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2
_config/mssql.yml
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2
_config/mssql.yml
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@ -0,0 +1,2 @@
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MSSQLDatabase:
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collation: null
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42
_register_database.php
Normal file
42
_register_database.php
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@ -0,0 +1,42 @@
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<?php
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// PDO connector for MS SQL Server
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DatabaseAdapterRegistry::register(array(
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'class' => 'MSSQLPDODatabase',
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'title' => 'SQL Server 2008 (using PDO)',
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'helperPath' => dirname(__FILE__).'/code/MSSQLDatabaseConfigurationHelper.php',
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'supported' => (class_exists('PDO') && in_array('sqlsrv', PDO::getAvailableDrivers())),
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'missingExtensionText' =>
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'Either the <a href="http://www.php.net/manual/en/book.pdo.php">PDO Extension</a> or
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the <a href="http://www.php.net/manual/en/ref.pdo-sqlsrv.php">SQL Server PDO Driver</a>
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are unavailable. Please install or enable these and refresh this page.'
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));
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// Basic driver using sqlsrv connector
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DatabaseAdapterRegistry::register(array(
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'class' => 'MSSQLDatabase',
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'title' => 'SQL Server 2008 (using sqlsrv)',
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'helperPath' => dirname(__FILE__).'/code/MSSQLDatabaseConfigurationHelper.php',
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'supported' => function_exists('sqlsrv_connect'),
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'missingExtensionText' =>
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'The <a href="http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx">sqlsrv</a>
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PHP extensions is not available. Please install or enable it and refresh this page.',
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'fields' => array_merge(DatabaseAdapterRegistry::get_default_fields(), array(
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// @todo - do we care about windows authentication for PDO/SQL Server?
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'windowsauthentication' => array(
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'title' => 'Use Windows authentication? (leave blank for false)',
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'default' => ''
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)
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))
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));
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// MS Azure uses an online database
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DatabaseAdapterRegistry::register(array(
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'class' => 'MSSQLAzureDatabase',
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'title' => 'MS Azure Database (using sqlsrv)',
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'helperPath' => dirname(__FILE__).'/code/MSSQLDatabaseConfigurationHelper.php',
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'supported' => function_exists('sqlsrv_connect'),
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'missingExtensionText' =>
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'The <a href="http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx">sqlsrv</a>
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PHP extension is not available. Please install or enable it and refresh this page.'
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));
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@ -1,4 +1,5 @@
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<?php
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/**
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* Specific support for SQL Azure databases running on Windows Azure.
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* Currently only supports the SQLSRV driver from Microsoft.
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@ -19,7 +20,16 @@
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*/
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class MSSQLAzureDatabase extends MSSQLDatabase {
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protected $fullTextEnabled = false;
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/**
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* List of parameters used to create new Azure connections between databases
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*
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* @var array
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*/
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protected $parameters = array();
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public function fullTextEnabled() {
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return false;
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}
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public function __construct($parameters) {
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$this->connectDatabase($parameters);
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@ -28,21 +38,37 @@ class MSSQLAzureDatabase extends MSSQLDatabase {
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/**
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* Connect to a SQL Azure database with the given parameters.
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* @param array $parameters Connection parameters set by environment
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* @return resource SQL Azure database connection link
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* - server: The server, eg, localhost
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* - username: The username to log on with
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* - password: The password to log on with
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* - database: The database to connect to
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* - windowsauthentication: Not supported for Azure
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*/
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protected function connectDatabase($parameters) {
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$this->dbConn = sqlsrv_connect($parameters['server'], array(
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'Database' => $parameters['database'],
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'UID' => $parameters['username'],
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'PWD' => $parameters['password'],
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'MultipleActiveResultSets' => '0'
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));
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protected function connect($parameters) {
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$this->parameters = $parameters;
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$this->connectDatabase($parameters['database']);
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}
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$this->tableList = $this->fieldList = $this->indexList = null;
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$this->database = $parameters['database'];
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$this->active = true;
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$this->fullTextEnabled = false;
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/**
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* Connect to a database using the provided parameters
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*
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* @param string $database
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*/
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protected function connectDatabase($database) {
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$parameters = $this->parameters;
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$parameters['database'] = $database;
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$parameters['multipleactiveresultsets'] = 0;
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// Ensure that driver is available (required by PDO)
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if(empty($parameters['driver'])) {
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$parameters['driver'] = $this->getDatabaseServer();
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}
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// Notify connector of parameters, instructing the connector
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// to connect immediately to the Azure database
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$this->connector->connect($parameters, true);
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// Configure the connection
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$this->query('SET QUOTED_IDENTIFIER ON');
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$this->query('SET TEXTSIZE 2147483647');
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}
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@ -50,20 +76,30 @@ class MSSQLAzureDatabase extends MSSQLDatabase {
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/**
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* Switches to the given database.
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*
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* If the database doesn't exist, you should call
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* createDatabase() after calling selectDatabase()
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*
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* IMPORTANT: SQL Azure doesn't support "USE", so we need
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* to reinitialize the database connection with the requested
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* database name.
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* @see http://msdn.microsoft.com/en-us/library/windowsazure/ee336288.aspx
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*
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* @param string $dbname The database name to switch to
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* @param type $name The database name to switch to
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* @param type $create
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* @param type $errorLevel
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*/
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public function selectDatabase($dbname) {
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global $databaseConfig;
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$parameters = $databaseConfig;
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$parameters['database'] = $dbname;
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$this->connectDatabase($parameters);
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public function selectDatabase($name, $create = false, $errorLevel = E_USER_ERROR) {
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$this->fullTextEnabled = null;
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if (!$this->schemaManager->databaseExists($name)) {
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// Check DB creation permisson
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if (!$create) {
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if ($errorLevel !== false) {
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user_error("Attempted to connect to non-existing database \"$name\"", $errorLevel);
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}
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// Unselect database
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$this->connector->unloadDatabase();
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return false;
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}
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$this->schemaManager->createDatabase($name);
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}
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$this->connectDatabase($name);
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return true;
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}
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}
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@ -40,37 +40,6 @@
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*/
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class MSSQLDatabase extends SS_Database {
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/**
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* Connection to the DBMS.
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* @var resource
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*/
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protected $dbConn;
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/**
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* True if we are connected to a database.
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* @var boolean
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*/
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protected $active;
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/**
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* The name of the database.
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* @var string
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*/
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protected $database;
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/**
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* If true, use the mssql_... functions.
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* If false use the sqlsrv_... functions
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*/
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protected $mssql = null;
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/**
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* Stores the affected rows of the last query.
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* Used by sqlsrv functions only, as sqlsrv_rows_affected
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* accepts a result instead of a database handle.
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*/
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protected $lastAffectedRows;
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/**
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* Words that will trigger an error if passed to a SQL Server fulltext search
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*/
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@ -94,23 +63,25 @@ class MSSQLDatabase extends SS_Database {
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*/
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protected $fullTextEnabled = null;
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/**
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* Stores per-request cached constraint checks that come from the database.
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* @var array
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*/
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protected static $cached_checks = array();
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/**
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* @ignore
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*/
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protected static $collation = null;
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/**
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* Set the default collation of the MSSQL nvarchar fields that we create.
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* We don't apply this to the database as a whole, so that we can use unicode collations.
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*
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* @param string $collation
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*/
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public static function set_collation($collation) {
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self::$collation = $collation;
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Config::inst()->update('MSSQLDatabase', 'collation', $collation);
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}
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/**
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* The default collation of the MSSQL nvarchar fields that we create.
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* We don't apply this to the database as a whole, so that we can use
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* unicode collations.
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*
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* @return string
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*/
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public static function get_collation() {
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return Config::inst()->get('MSSQLDatabase', 'collation');
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}
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/**
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@ -120,75 +91,15 @@ class MSSQLDatabase extends SS_Database {
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* - username: The username to log on with
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* - password: The password to log on with
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* - database: The database to connect to
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* - windowsauthentication: Set to true to use windows authentication
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* instead of username/password
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*/
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public function __construct($parameters) {
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if(function_exists('mssql_connect')) {
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$this->mssql = true;
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} else if(function_exists('sqlsrv_connect')) {
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$this->mssql = false;
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} else {
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user_error("Neither the mssql_connect() nor the sqlsrv_connect() functions are available. Please install the PHP native mssql module, or the Microsoft-provided sqlsrv module.", E_USER_ERROR);
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}
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public function connect($parameters) {
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parent::connect($parameters);
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if($this->mssql) {
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// Switch to utf8 connection charset
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ini_set('mssql.charset', 'utf8');
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$this->dbConn = mssql_connect($parameters['server'], $parameters['username'], $parameters['password'], true);
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} else {
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// Disable default warnings as errors behaviour for sqlsrv to keep it in line with mssql functions
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if(ini_get('sqlsrv.WarningsReturnAsErrors')) {
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ini_set('sqlsrv.WarningsReturnAsErrors', 'Off');
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}
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$options = array(
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'CharacterSet' => 'UTF-8',
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'MultipleActiveResultSets' => true
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);
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if(!(defined('MSSQL_USE_WINDOWS_AUTHENTICATION') && MSSQL_USE_WINDOWS_AUTHENTICATION == true)) {
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$options['UID'] = $parameters['username'];
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$options['PWD'] = $parameters['password'];
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}
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$this->dbConn = sqlsrv_connect($parameters['server'], $options);
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}
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if(!$this->dbConn) {
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$this->databaseError('Couldn\'t connect to SQL Server database');
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} else {
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$this->database = $parameters['database'];
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$this->selectDatabase($this->database);
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// Configure the connection
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$this->query('SET QUOTED_IDENTIFIER ON');
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$this->query('SET TEXTSIZE 2147483647');
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}
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}
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public function __destruct() {
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if(is_resource($this->dbConn)) {
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if($this->mssql) {
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mssql_close($this->dbConn);
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} else {
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sqlsrv_close($this->dbConn);
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}
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}
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}
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/**
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* Return the last database error.
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* @return string
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*/
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public function getLastError() {
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$error = '';
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if($this->mssql) {
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$error = mssql_get_last_message();
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} else {
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$errors = sqlsrv_errors();
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if($errors) foreach($errors as $info) {
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$error .= implode(', ', array($info['SQLSTATE'], $info['code'], $info['message']));
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}
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}
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return $error;
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// Configure the connection
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$this->query('SET QUOTED_IDENTIFIER ON');
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$this->query('SET TEXTSIZE 2147483647');
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}
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/**
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@ -199,80 +110,31 @@ class MSSQLDatabase extends SS_Database {
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*/
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public function fullTextEnabled() {
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if($this->fullTextEnabled === null) {
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$isInstalled = (boolean) DB::query("SELECT fulltextserviceproperty('isfulltextinstalled')")->value();
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$enabledForDb = (boolean) DB::query("
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SELECT is_fulltext_enabled
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FROM sys.databases
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WHERE name = '$this->database'
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")->value();
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$this->fullTextEnabled = (boolean) ($isInstalled && $enabledForDb);
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$this->fullTextEnabled = $this->updateFullTextEnabled();
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}
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return $this->fullTextEnabled;
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}
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/**
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* Throw a database error
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*/
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function databaseError($message, $errorLevel = E_USER_ERROR) {
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$lastError = $this->getLastError();
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if($lastError) $message .= "\nLast error: " . $lastError;
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return parent::databaseError($message, $errorLevel);
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}
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/**
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* This will set up the full text search capabilities.
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*/
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function createFullTextCatalog() {
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$result = $this->fullTextCatalogExists();
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if(!$result) $this->query('CREATE FULLTEXT CATALOG "ftCatalog" AS DEFAULT;');
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}
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/**
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* Check that a fulltext catalog has been created yet.
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* Checks whether the current SQL Server version has full-text
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* support installed and full-text is enabled for this database.
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*
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* @return boolean
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*/
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public function fullTextCatalogExists() {
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return (bool) $this->query("SELECT name FROM sys.fulltext_catalogs WHERE name = 'ftCatalog';")->value();
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protected function updateFullTextEnabled() {
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// Check if installed
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$isInstalled = $this->query("SELECT fulltextserviceproperty('isfulltextinstalled')")->value();
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if(!$isInstalled) return false;
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// Check if current database is enabled
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$database = $this->getSelectedDatabase();
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$enabledForDb = $this->preparedQuery(
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"SELECT is_fulltext_enabled FROM sys.databases WHERE name = ?",
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array($database)
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)->value();
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return $enabledForDb;
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}
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/**
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* Sleep until the catalog has been fully rebuilt. This is a busy wait designed for situations
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* when you need to be sure the index is up to date - for example in unit tests.
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*
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* TODO: move this to Database class? Can we assume this will be useful for all databases?
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* Also see the wrapper functions "waitUntilIndexingFinished" in SearchFormTest and TranslatableSearchFormTest
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*
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* @param int $maxWaitingTime Time in seconds to wait for the database.
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*/
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function waitUntilIndexingFinished($maxWaitingTime = 15) {
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if($this->fullTextEnabled()) {
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$this->query("EXEC sp_fulltext_catalog 'ftCatalog', 'Rebuild';");
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// Busy wait until it's done updating, but no longer than 15 seconds.
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$start = time();
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while(time()-$start<$maxWaitingTime) {
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$status = $this->query("EXEC sp_help_fulltext_catalogs 'ftCatalog';")->first();
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if (isset($status['STATUS']) && $status['STATUS']==0) {
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// Idle!
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break;
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}
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sleep(1);
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}
|
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}
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}
|
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|
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/**
|
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* Not implemented, needed for PDO
|
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*/
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public function getConnect($parameters) {
|
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return null;
|
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}
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|
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/**
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* Returns true if this database supports collations
|
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* @return boolean
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*/
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public function supportsCollations() {
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return true;
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}
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@ -281,985 +143,20 @@ class MSSQLDatabase extends SS_Database {
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return true;
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}
|
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|
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/**
|
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* Get the version of MSSQL.
|
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* @return string
|
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*/
|
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public function getVersion() {
|
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return trim($this->query("SELECT CONVERT(char(15), SERVERPROPERTY('ProductVersion'))")->value());
|
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}
|
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|
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/**
|
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* Get the database server, namely mssql.
|
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* @return string
|
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*/
|
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public function getDatabaseServer() {
|
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return "mssql";
|
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return "sqlsrv";
|
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}
|
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|
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public function query($sql, $errorLevel = E_USER_ERROR) {
|
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if(isset($_REQUEST['previewwrite']) && in_array(strtolower(substr($sql,0,strpos($sql,' '))), array('insert','update','delete','replace'))) {
|
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Debug::message("Will execute: $sql");
|
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return;
|
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}
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public function selectDatabase($name, $create = false, $errorLevel = E_USER_ERROR) {
|
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$this->fullTextEnabled = null;
|
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|
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if(isset($_REQUEST['showqueries'])) {
|
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$starttime = microtime(true);
|
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}
|
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|
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$error = '';
|
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if($this->mssql) {
|
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$handle = mssql_query($sql, $this->dbConn);
|
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} else {
|
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$handle = sqlsrv_query($this->dbConn, $sql);
|
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if($handle) $this->lastAffectedRows = sqlsrv_rows_affected($handle);
|
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}
|
||||
|
||||
if(isset($_REQUEST['showqueries'])) {
|
||||
$endtime = round(microtime(true) - $starttime,4);
|
||||
Debug::message("\n$sql\n{$endtime}ms\n", false);
|
||||
}
|
||||
|
||||
if(!$handle && $errorLevel) $this->databaseError("Couldn't run query: $sql", $errorLevel);
|
||||
return new MSSQLQuery($this, $handle, $this->mssql);
|
||||
return parent::selectDatabase($name, $create, $errorLevel);
|
||||
}
|
||||
|
||||
public function getGeneratedID($table) {
|
||||
return $this->query("SELECT IDENT_CURRENT('$table')")->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* MSSQL stores the primary key column with an internal identifier,
|
||||
* so a lookup needs to be done to determine it.
|
||||
*
|
||||
* @param string $tableName Name of table with primary key column "ID"
|
||||
* @return string Internal identifier for primary key
|
||||
*/
|
||||
function getPrimaryKey($tableName){
|
||||
$indexes=DB::query("EXEC sp_helpindex '$tableName';");
|
||||
$indexName = '';
|
||||
foreach($indexes as $index) {
|
||||
if($index['index_keys'] == 'ID') {
|
||||
$indexName = $index['index_name'];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return $indexName;
|
||||
}
|
||||
|
||||
function getIdentityColumn($tableName) {
|
||||
return $this->query("
|
||||
SELECT
|
||||
TABLE_NAME + '.' + COLUMN_NAME,
|
||||
TABLE_NAME
|
||||
FROM
|
||||
INFORMATION_SCHEMA.COLUMNS
|
||||
WHERE
|
||||
TABLE_SCHEMA = 'dbo' AND
|
||||
COLUMNPROPERTY(object_id(TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1 AND
|
||||
TABLE_NAME = '$tableName'
|
||||
")->value();
|
||||
}
|
||||
|
||||
public function isActive() {
|
||||
return $this->active ? true : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create the database that is currently selected.
|
||||
*/
|
||||
public function createDatabase() {
|
||||
$this->query("CREATE DATABASE \"$this->database\"");
|
||||
$this->selectDatabase($this->database);
|
||||
}
|
||||
|
||||
/**
|
||||
* Drop the database that this object is currently connected to.
|
||||
* Use with caution.
|
||||
*/
|
||||
public function dropDatabase() {
|
||||
$db = $this->database;
|
||||
$this->selectDatabase('master');
|
||||
$this->query("DROP DATABASE \"$db\"");
|
||||
$this->active = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Drop the given database name.
|
||||
* Use with caution.
|
||||
* @param string $name Database name to drop
|
||||
*/
|
||||
public function dropDatabaseByName($name) {
|
||||
$this->query("DROP DATABASE \"$name\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the name of the currently selected database
|
||||
*/
|
||||
public function currentDatabase() {
|
||||
return $this->database;
|
||||
}
|
||||
|
||||
/**
|
||||
* Switches to the given database.
|
||||
*
|
||||
* If the database doesn't exist, you should call
|
||||
* createDatabase() after calling selectDatabase()
|
||||
*
|
||||
* @param string $dbname The database name to switch to
|
||||
*/
|
||||
public function selectDatabase($dbname) {
|
||||
$this->database = $dbname;
|
||||
|
||||
if($this->databaseExists($this->database)) {
|
||||
if($this->mssql) {
|
||||
if(mssql_select_db($this->database, $this->dbConn)) {
|
||||
$this->active = true;
|
||||
}
|
||||
} else {
|
||||
$this->query("USE \"$this->database\"");
|
||||
$this->active = true;
|
||||
}
|
||||
}
|
||||
|
||||
$this->tableList = $this->fieldList = $this->indexList = $this->fullTextEnabled = null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the given database exists from {@link allDatabaseNames()}.
|
||||
* @param string $name Name of database to check exists
|
||||
* @return boolean
|
||||
*/
|
||||
public function databaseExists($name) {
|
||||
$databases = $this->allDatabaseNames();
|
||||
foreach($databases as $dbname) {
|
||||
if($dbname == $name) return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return all databases names from the server.
|
||||
* @return array
|
||||
*/
|
||||
public function allDatabaseNames() {
|
||||
return $this->query('SELECT NAME FROM sys.sysdatabases')->column();
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new table.
|
||||
* @param $tableName The name of the table
|
||||
* @param $fields A map of field names to field types
|
||||
* @param $indexes A map of indexes
|
||||
* @param $options An map of additional options. The available keys are as follows:
|
||||
* - 'MSSQLDatabase'/'MySQLDatabase'/'PostgreSQLDatabase' - database-specific options such as "engine" for MySQL.
|
||||
* - 'temporary' - If true, then a temporary table will be created
|
||||
* @return The table name generated. This may be different from the table name, for example with temporary tables.
|
||||
*/
|
||||
public function createTable($tableName, $fields = null, $indexes = null, $options = null, $advancedOptions = null) {
|
||||
$fieldSchemas = $indexSchemas = "";
|
||||
if($fields) foreach($fields as $k => $v) $fieldSchemas .= "\"$k\" $v,\n";
|
||||
|
||||
// Temporary tables start with "#" in MSSQL-land
|
||||
if(!empty($options['temporary'])) {
|
||||
// Randomize the temp table name to avoid conflicts in the tempdb table which derived databases share
|
||||
$tableName = "#$tableName" . '-' . rand(1000000, 9999999);
|
||||
}
|
||||
|
||||
$this->query("CREATE TABLE \"$tableName\" (
|
||||
$fieldSchemas
|
||||
primary key (\"ID\")
|
||||
);");
|
||||
|
||||
//we need to generate indexes like this: CREATE INDEX IX_vault_to_export ON vault (to_export);
|
||||
//This needs to be done AFTER the table creation, so we can set up the fulltext indexes correctly
|
||||
if($indexes) foreach($indexes as $k => $v) {
|
||||
$indexSchemas .= $this->getIndexSqlDefinition($tableName, $k, $v) . "\n";
|
||||
}
|
||||
|
||||
if($indexSchemas) $this->query($indexSchemas);
|
||||
|
||||
return $tableName;
|
||||
}
|
||||
|
||||
/**
|
||||
* Alter a table's schema.
|
||||
* @param $table The name of the table to alter
|
||||
* @param $newFields New fields, a map of field name => field schema
|
||||
* @param $newIndexes New indexes, a map of index name => index type
|
||||
* @param $alteredFields Updated fields, a map of field name => field schema
|
||||
* @param $alteredIndexes Updated indexes, a map of index name => index type
|
||||
*/
|
||||
public function alterTable($tableName, $newFields = null, $newIndexes = null, $alteredFields = null, $alteredIndexes = null, $alteredOptions=null, $advancedOptions=null) {
|
||||
$alterList = array();
|
||||
$indexList = $this->indexList($tableName);
|
||||
|
||||
// drop any fulltext indexes that exist on the table before altering the structure
|
||||
if($this->fullTextIndexExists($tableName)) {
|
||||
$alterList[] = "\nDROP FULLTEXT INDEX ON \"$tableName\";";
|
||||
}
|
||||
|
||||
if($newFields) foreach($newFields as $k => $v) $alterList[] = "ALTER TABLE \"$tableName\" ADD \"$k\" $v";
|
||||
|
||||
if($alteredFields) foreach($alteredFields as $k => $v) $alterList[] = $this->alterTableAlterColumn($tableName, $k, $v, $indexList);
|
||||
if($alteredIndexes) foreach($alteredIndexes as $k => $v) $alterList[] = $this->getIndexSqlDefinition($tableName, $k, $v);
|
||||
if($newIndexes) foreach($newIndexes as $k => $v) $alterList[] = $this->getIndexSqlDefinition($tableName, $k, $v);
|
||||
|
||||
if($alterList) {
|
||||
foreach($alterList as $alteration) {
|
||||
if($alteration != '') {
|
||||
$this->query($alteration);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Given the table and column name, retrieve the constraint name for that column
|
||||
* in the table.
|
||||
*/
|
||||
public function getConstraintName($tableName, $columnName) {
|
||||
return $this->query("
|
||||
SELECT CONSTRAINT_NAME
|
||||
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
|
||||
WHERE TABLE_NAME = '$tableName' AND COLUMN_NAME = '$columnName'
|
||||
")->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Given a table and column name, return a check constraint clause for that column in
|
||||
* the table.
|
||||
*
|
||||
* This is an expensive query, so it is cached per-request and stored by table. The initial
|
||||
* call for a table that has not been cached will query all columns and store that
|
||||
* so subsequent calls are fast.
|
||||
*
|
||||
* @param string $tableName Table name column resides in
|
||||
* @param string $columnName Column name the constraint is for
|
||||
* @return string The check string
|
||||
*/
|
||||
public function getConstraintCheckClause($tableName, $columnName) {
|
||||
if(isset(self::$cached_checks[$tableName])) {
|
||||
if(!isset(self::$cached_checks[$tableName][$columnName])) self::$cached_checks[$tableName][$columnName] = null;
|
||||
return self::$cached_checks[$tableName][$columnName];
|
||||
}
|
||||
|
||||
$checks = array();
|
||||
foreach($this->query("
|
||||
SELECT CAST(CHECK_CLAUSE AS TEXT) AS CHECK_CLAUSE, COLUMN_NAME
|
||||
FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC
|
||||
INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME = CC.CONSTRAINT_NAME
|
||||
WHERE TABLE_NAME = '$tableName'
|
||||
") as $record) {
|
||||
$checks[$record['COLUMN_NAME']] = $record['CHECK_CLAUSE'];
|
||||
}
|
||||
|
||||
self::$cached_checks[$tableName] = $checks;
|
||||
if(!isset(self::$cached_checks[$tableName][$columnName])) self::$cached_checks[$tableName][$columnName] = null;
|
||||
|
||||
return self::$cached_checks[$tableName][$columnName];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the name of the default constraint applied to $tableName.$colName.
|
||||
* Will return null if no such constraint exists
|
||||
*/
|
||||
protected function defaultConstraintName($tableName, $colName) {
|
||||
return $this->query("SELECT s.name --default name
|
||||
FROM sys.sysobjects s
|
||||
join sys.syscolumns c ON s.parent_obj = c.id
|
||||
WHERE s.xtype = 'd'
|
||||
and c.cdefault = s.id
|
||||
and parent_obj= OBJECT_ID('$tableName')
|
||||
and c.name = '$colName'")->value();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Get enum values from a constraint check clause.
|
||||
* @param string $clause Check clause to parse values from
|
||||
* @return array Enum values
|
||||
*/
|
||||
protected function enumValuesFromCheckClause($clause) {
|
||||
$segments = preg_split('/ +OR *\[/i', $clause);
|
||||
$constraints = array();
|
||||
foreach($segments as $segment) {
|
||||
$bits = preg_split('/ *= */', $segment);
|
||||
for($i = 1; $i < sizeof($bits); $i += 2) {
|
||||
array_unshift($constraints, substr(rtrim($bits[$i], ')'), 1, -1));
|
||||
}
|
||||
}
|
||||
return $constraints;
|
||||
}
|
||||
|
||||
/*
|
||||
* Creates an ALTER expression for a column in MS SQL
|
||||
*
|
||||
* @param $tableName Name of the table to be altered
|
||||
* @param $colName Name of the column to be altered
|
||||
* @param $colSpec String which contains conditions for a column
|
||||
* @return string
|
||||
*/
|
||||
protected function alterTableAlterColumn($tableName, $colName, $colSpec, $indexList){
|
||||
|
||||
// First, we split the column specifications into parts
|
||||
// TODO: this returns an empty array for the following string: int(11) not null auto_increment
|
||||
// on second thoughts, why is an auto_increment field being passed through?
|
||||
$pattern = '/^([\w()]+)\s?((?:not\s)?null)?\s?(default\s[\w\']+)?\s?(check\s?[\w()\'",\s]+)?$/i';
|
||||
$matches=Array();
|
||||
preg_match($pattern, $colSpec, $matches);
|
||||
|
||||
// drop the index if it exists
|
||||
$alterCol='';
|
||||
|
||||
// drop *ALL* indexes on a table before proceeding
|
||||
// this won't drop primary keys, though
|
||||
$indexes = $this->indexNames($tableName);
|
||||
foreach($indexes as $indexName) {
|
||||
$alterCol = "\nDROP INDEX \"$indexName\" ON \"$tableName\";";
|
||||
}
|
||||
|
||||
$prefix="ALTER TABLE \"" . $tableName . "\" ";
|
||||
|
||||
// Remove the old default prior to adjusting the column.
|
||||
if($defaultConstraintName = $this->defaultConstraintName($tableName, $colName)) {
|
||||
$alterCol .= ";\n$prefix DROP CONSTRAINT \"$defaultConstraintName\"";
|
||||
}
|
||||
|
||||
if(isset($matches[1])) {
|
||||
//We will prevent any changes being made to the ID column. Primary key indexes will have a fit if we do anything here.
|
||||
if($colName!='ID'){
|
||||
|
||||
// SET null / not null
|
||||
if(!empty($matches[2])) $alterCol .= ";\n$prefix ALTER COLUMN \"$colName\" $matches[1] $matches[2]";
|
||||
else $alterCol .= ";\n$prefix ALTER COLUMN \"$colName\" $matches[1]";
|
||||
|
||||
// Add a default back
|
||||
if(!empty($matches[3])) $alterCol .= ";\n$prefix ADD $matches[3] FOR \"$colName\"";
|
||||
|
||||
// SET check constraint (The constraint HAS to be dropped)
|
||||
if(!empty($matches[4])) {
|
||||
$constraint = $this->getConstraintName($tableName, $colName);
|
||||
if($constraint) {
|
||||
$alterCol .= ";\n$prefix DROP CONSTRAINT {$constraint}";
|
||||
}
|
||||
|
||||
//NOTE: 'with nocheck' seems to solve a few problems I've been having for modifying existing tables.
|
||||
$alterCol .= ";\n$prefix WITH NOCHECK ADD CONSTRAINT \"{$tableName}_{$colName}_check\" $matches[4]";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return isset($alterCol) ? $alterCol : '';
|
||||
}
|
||||
|
||||
public function renameTable($oldTableName, $newTableName) {
|
||||
$this->query("EXEC sp_rename \"$oldTableName\", \"$newTableName\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks a table's integrity and repairs it if necessary.
|
||||
* NOTE: MSSQL does not appear to support any vacuum or optimise commands
|
||||
*
|
||||
* @var string $tableName The name of the table.
|
||||
* @return boolean Return true if the table has integrity after the method is complete.
|
||||
*/
|
||||
public function checkAndRepairTable($tableName) {
|
||||
return true;
|
||||
}
|
||||
|
||||
public function createField($tableName, $fieldName, $fieldSpec) {
|
||||
$this->query("ALTER TABLE \"$tableName\" ADD \"$fieldName\" $fieldSpec");
|
||||
}
|
||||
|
||||
/**
|
||||
* Change the database type of the given field.
|
||||
* @param string $tableName The name of the tbale the field is in.
|
||||
* @param string $fieldName The name of the field to change.
|
||||
* @param string $fieldSpec The new field specification
|
||||
*/
|
||||
public function alterField($tableName, $fieldName, $fieldSpec) {
|
||||
$this->query("ALTER TABLE \"$tableName\" CHANGE \"$fieldName\" \"$fieldName\" $fieldSpec");
|
||||
}
|
||||
|
||||
/**
|
||||
* Change the database column name of the given field.
|
||||
*
|
||||
* @param string $tableName The name of the tbale the field is in.
|
||||
* @param string $oldName The name of the field to change.
|
||||
* @param string $newName The new name of the field
|
||||
*/
|
||||
public function renameField($tableName, $oldName, $newName) {
|
||||
$this->query("EXEC sp_rename @objname = '$tableName.$oldName', @newname = '$newName', @objtype = 'COLUMN'");
|
||||
}
|
||||
|
||||
public function fieldList($table) {
|
||||
//This gets us more information than we need, but I've included it all for the moment....
|
||||
$fieldRecords = $this->query("SELECT ordinal_position, column_name, data_type, column_default,
|
||||
is_nullable, character_maximum_length, numeric_precision, numeric_scale, collation_name
|
||||
FROM information_schema.columns WHERE table_name = '$table'
|
||||
ORDER BY ordinal_position;");
|
||||
|
||||
// Cache the records from the query - otherwise a lack of multiple active result sets
|
||||
// will cause subsequent queries to fail in this method
|
||||
$fields = array();
|
||||
$output = array();
|
||||
foreach($fieldRecords as $record) {
|
||||
$fields[] = $record;
|
||||
}
|
||||
|
||||
foreach($fields as $field) {
|
||||
// Update the data_type field to be a complete column definition string for use by
|
||||
// SS_Database::requireField()
|
||||
switch($field['data_type']){
|
||||
case 'bigint':
|
||||
case 'numeric':
|
||||
case 'float':
|
||||
case 'bit':
|
||||
if($field['data_type'] != 'bigint' && $sizeSuffix = $field['numeric_precision']) {
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default $default";
|
||||
}
|
||||
break;
|
||||
|
||||
case 'decimal':
|
||||
if($field['numeric_precision']) {
|
||||
$sizeSuffix = $field['numeric_precision'] . ',' . $field['numeric_scale'];
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default $default";
|
||||
}
|
||||
break;
|
||||
|
||||
case 'nvarchar':
|
||||
case 'varchar':
|
||||
//Check to see if there's a constraint attached to this column:
|
||||
$clause = $this->getConstraintCheckClause($table, $field['column_name']);
|
||||
if($clause) {
|
||||
$constraints = $this->enumValuesFromCheckClause($clause);
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] = $this->enum(array(
|
||||
'default' => $default,
|
||||
'name' => $field['column_name'],
|
||||
'enums' => $constraints,
|
||||
'table' => $table
|
||||
));
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
$sizeSuffix = $field['character_maximum_length'];
|
||||
if($sizeSuffix == '-1') $sizeSuffix = 'max';
|
||||
if($sizeSuffix) {
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default '$default'";
|
||||
}
|
||||
}
|
||||
$output[$field['column_name']]=$field;
|
||||
|
||||
}
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
* This is a stub function. Postgres caches the fieldlist results.
|
||||
*
|
||||
* @param string $tableName
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
function clear_cached_fieldlist($tableName=false){
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create an index on a table.
|
||||
* @param string $tableName The name of the table.
|
||||
* @param string $indexName The name of the index.
|
||||
* @param string $indexSpec The specification of the index, see SS_Database::requireIndex() for more details.
|
||||
*/
|
||||
public function createIndex($tableName, $indexName, $indexSpec) {
|
||||
$this->query($this->getIndexSqlDefinition($tableName, $indexName, $indexSpec));
|
||||
}
|
||||
|
||||
/**
|
||||
* This takes the index spec which has been provided by a class (ie static $indexes = blah blah)
|
||||
* and turns it into a proper string.
|
||||
* Some indexes may be arrays, such as fulltext and unique indexes, and this allows database-specific
|
||||
* arrays to be created.
|
||||
*/
|
||||
public function convertIndexSpec($indexSpec){
|
||||
$indexSpec = $this->parseIndexSpec(null, $indexSpec);
|
||||
return "{$indexSpec['type']} ({$indexSpec['value']})";
|
||||
}
|
||||
|
||||
/**
|
||||
* Splits a spec string safely, considering quoted columns, whitespace,
|
||||
* and cleaning brackets
|
||||
* @param string $spec The input index specification
|
||||
* @return array List of columns in the spec
|
||||
*/
|
||||
function explodeColumnString($spec) {
|
||||
// Remove any leading/trailing brackets and outlying modifiers
|
||||
// E.g. 'unique (Title, "QuotedColumn");' => 'Title, "QuotedColumn"'
|
||||
$containedSpec = preg_replace('/(.*\(\s*)|(\s*\).*)/', '', $spec);
|
||||
|
||||
// Split potentially quoted modifiers
|
||||
// E.g. 'Title, "QuotedColumn"' => array('Title', 'QuotedColumn')
|
||||
return preg_split('/"?\s*,\s*"?/', trim($containedSpec, '(") '));
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds a properly quoted column list from an array
|
||||
* @param array $columns List of columns to implode
|
||||
* @return string A properly quoted list of column names
|
||||
*/
|
||||
function implodeColumnList($columns) {
|
||||
if(empty($columns)) return '';
|
||||
return '"' . implode('","', $columns) . '"';
|
||||
}
|
||||
|
||||
/**
|
||||
* Given an index specification in the form of a string ensure that each
|
||||
* column name is property quoted, stripping brackets and modifiers.
|
||||
* This index may also be in the form of a "CREATE INDEX..." sql fragment
|
||||
* @param string $spec The input specification or query. E.g. 'unique (Column1, Column2)'
|
||||
* @return string The properly quoted column list. E.g. '"Column1", "Column2"'
|
||||
*/
|
||||
function quoteColumnSpecString($spec) {
|
||||
$bits = $this->explodeColumnString($spec);
|
||||
return $this->implodeColumnList($bits);
|
||||
}
|
||||
|
||||
/**
|
||||
* Given an index spec determines the index type
|
||||
* @param type $spec
|
||||
* @return string
|
||||
*/
|
||||
function determineIndexType($spec) {
|
||||
// check array spec
|
||||
if(is_array($spec) && isset($spec['type'])) {
|
||||
return $spec['type'];
|
||||
} elseif (!is_array($spec) && preg_match('/(?<type>\w+)\s*\(/', $spec, $matchType)) {
|
||||
return strtolower($matchType['type']);
|
||||
} else {
|
||||
return 'index';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts an array or string index spec into a universally useful array
|
||||
* @see convertIndexSpec() for approximate inverse
|
||||
* @param string|array $spec An index specification in either one of two formats:
|
||||
* <ul>
|
||||
* <li>A string in the format <code>"indextype (Column1, Column2, Column3)"</code> indextype
|
||||
* may be omitted, in which case it will be treated as an 'index' type</li>
|
||||
* <li>An associative array with the keys 'name' (which should max the $name
|
||||
* argument), 'value' (in the same format as the above column list) and
|
||||
* 'type'.</li>
|
||||
* </ul>
|
||||
* Index types may be one of unique, index, fulltext, or any adaptor specific
|
||||
* format. Column names may be double quoted.
|
||||
* @return array The resulting spec array with the required fields 'name',
|
||||
* 'type', and 'value'. The index value will have cleanly quoted column names.
|
||||
* E.g. <code>array(
|
||||
* 'type' => 'unique',
|
||||
* 'name' => 'MyIndex',
|
||||
* 'value' => '"Title", "Content"'
|
||||
* )</code>
|
||||
*/
|
||||
function parseIndexSpec($name, $spec) {
|
||||
|
||||
// Do minimal cleanup on any already parsed spec
|
||||
if(is_array($spec)) {
|
||||
$spec['value'] = $this->quoteColumnSpecString($spec['value']);
|
||||
return $spec;
|
||||
}
|
||||
|
||||
// Nicely formatted spec!
|
||||
return array(
|
||||
'name' => $name,
|
||||
'value' => $this->quoteColumnSpecString($spec),
|
||||
'type' => $this->determineIndexType($spec)
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds the internal MS SQL Server index name given the silverstripe table and index name
|
||||
* @param string $tableName
|
||||
* @param string $indexName
|
||||
* @param string $prefix The optional prefix for the index. Defaults to "ix" for indexes.
|
||||
* @return string The postgres name of the index
|
||||
*/
|
||||
function buildMSSQLIndexName($tableName, $indexName, $prefix = 'ix') {
|
||||
|
||||
// Cleanup names of namespaced tables
|
||||
$tableName = str_replace('\\', '_', $tableName);
|
||||
$indexName = str_replace('\\', '_', $indexName);
|
||||
|
||||
return "{$prefix}_{$tableName}_{$indexName}";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return SQL for dropping and recreating an index
|
||||
*/
|
||||
protected function getIndexSqlDefinition($tableName, $indexName, $indexSpec) {
|
||||
|
||||
// Determine index name
|
||||
$index = $this->buildMSSQLIndexName($tableName, $indexName);
|
||||
|
||||
// Consolidate/Cleanup spec into array format
|
||||
$indexSpec = $this->parseIndexSpec($indexName, $indexSpec);
|
||||
|
||||
$drop = "IF EXISTS (SELECT name FROM sys.indexes WHERE name = '$index') DROP INDEX $index ON \"" . $tableName . "\";";
|
||||
|
||||
// create a type-specific index
|
||||
if($indexSpec['type'] == 'fulltext' && $this->fullTextEnabled()) {
|
||||
// enable fulltext on this table
|
||||
$this->createFullTextCatalog();
|
||||
$primary_key = $this->getPrimaryKey($tableName);
|
||||
|
||||
if($primary_key) {
|
||||
return "$drop CREATE FULLTEXT INDEX ON \"$tableName\" ({$indexSpec['value']})"
|
||||
. "KEY INDEX $primary_key WITH CHANGE_TRACKING AUTO;";
|
||||
}
|
||||
}
|
||||
|
||||
if($indexSpec['type'] == 'unique') {
|
||||
return "$drop CREATE UNIQUE INDEX $index ON \"$tableName\" ({$indexSpec['value']});";
|
||||
}
|
||||
|
||||
return "$drop CREATE INDEX $index ON \"$tableName\" ({$indexSpec['value']});";
|
||||
}
|
||||
|
||||
function getDbSqlDefinition($tableName, $indexName, $indexSpec){
|
||||
return $indexName;
|
||||
}
|
||||
|
||||
/**
|
||||
* Alter an index on a table.
|
||||
* @param string $tableName The name of the table.
|
||||
* @param string $indexName The name of the index.
|
||||
* @param string $indexSpec The specification of the index, see SS_Database::requireIndex() for more details.
|
||||
*/
|
||||
public function alterIndex($tableName, $indexName, $indexSpec) {
|
||||
$this->createIndex($tableName, $indexName, $indexSpec);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the list of indexes in a table.
|
||||
* @param string $table The table name.
|
||||
* @return array
|
||||
*/
|
||||
public function indexList($table) {
|
||||
$indexes = DB::query("EXEC sp_helpindex '$table';");
|
||||
$indexList = array();
|
||||
|
||||
// Enumerate all basic indexes
|
||||
foreach($indexes as $index) {
|
||||
if(strpos($index['index_description'], 'unique') !== false) {
|
||||
$prefix = 'unique ';
|
||||
} else {
|
||||
$prefix= 'index ';
|
||||
}
|
||||
|
||||
// Extract name from index
|
||||
$baseIndexName = $this->buildMSSQLIndexName($table, '');
|
||||
$indexName = substr($index['index_name'], strlen($baseIndexName));
|
||||
|
||||
// Extract columns
|
||||
$columns = $this->quoteColumnSpecString($index['index_keys']);
|
||||
|
||||
$indexList[$indexName]['indexname'] = $indexName;
|
||||
$indexList[$indexName]['spec'] = "$prefix($columns)";
|
||||
}
|
||||
|
||||
// separately build up a list of the fulltext indexes for this table
|
||||
// as MSSQL doesn't return fulltext indexes in sp_helpindex
|
||||
if($this->fullTextEnabled()) {
|
||||
$result = DB::query('EXEC sp_help_fulltext_columns;');
|
||||
|
||||
// Extract columns from this fulltext definition
|
||||
$columns = array();
|
||||
foreach($result as $row) {
|
||||
if($row['TABLE_NAME'] == $table) {
|
||||
$columns[] = $row['FULLTEXT_COLUMN_NAME'];
|
||||
}
|
||||
}
|
||||
|
||||
if(!empty($columns)) {
|
||||
$columns = $this->implodeColumnList($columns);
|
||||
$indexList['SearchFields']['indexname'] = 'SearchFields';
|
||||
$indexList['SearchFields']['spec'] = "fulltext ($columns)";
|
||||
}
|
||||
}
|
||||
|
||||
return $indexList;
|
||||
}
|
||||
|
||||
/**
|
||||
* For a given table name, get all the internal index names,
|
||||
* except for those that are primary keys and fulltext indexes.
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
public function indexNames($tableName) {
|
||||
return $this->query(sprintf('SELECT ind.name FROM sys.indexes ind
|
||||
INNER JOIN sys.tables t ON ind.object_id = t.object_id
|
||||
WHERE is_primary_key = 0 AND t.name = \'%s\'', $tableName))->column();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of all the tables in the database.
|
||||
* Table names will all be in lowercase.
|
||||
* @return array
|
||||
*/
|
||||
public function tableList() {
|
||||
$tables = array();
|
||||
foreach($this->query("EXEC sp_tables @table_owner = 'dbo';") as $record) {
|
||||
$tables[strtolower($record['TABLE_NAME'])] = $record['TABLE_NAME'];
|
||||
}
|
||||
return $tables;
|
||||
}
|
||||
|
||||
/**
|
||||
* Empty the given table of all contents.
|
||||
*/
|
||||
public function clearTable($table) {
|
||||
$this->query("TRUNCATE TABLE \"$table\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the number of rows affected by the previous operation.
|
||||
* @return int
|
||||
*/
|
||||
public function affectedRows() {
|
||||
if($this->mssql) {
|
||||
return mssql_rows_affected($this->dbConn);
|
||||
} else {
|
||||
return $this->lastAffectedRows;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a boolean type-formatted string
|
||||
* We use 'bit' so that we can do numeric-based comparisons
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function boolean($values) {
|
||||
$default = ($values['default']) ? '1' : '0';
|
||||
return 'bit not null default ' . $default;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a date type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function date($values) {
|
||||
return 'date null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a decimal type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function decimal($values) {
|
||||
// Avoid empty strings being put in the db
|
||||
if($values['precision'] == '') {
|
||||
$precision = 1;
|
||||
} else {
|
||||
$precision = $values['precision'];
|
||||
}
|
||||
|
||||
$defaultValue = '0';
|
||||
if(isset($values['default']) && is_numeric($values['default'])) {
|
||||
$defaultValue = $values['default'];
|
||||
}
|
||||
|
||||
return 'decimal(' . $precision . ') not null default ' . $defaultValue;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a enum type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function enum($values) {
|
||||
// Enums are a bit different. We'll be creating a varchar(255) with a constraint of all the
|
||||
// usual enum options.
|
||||
// NOTE: In this one instance, we are including the table name in the values array
|
||||
|
||||
$maxLength = max(array_map('strlen', $values['enums']));
|
||||
|
||||
return "varchar($maxLength) not null default '" . $values['default']
|
||||
. "' check(\"" . $values['name'] . "\" in ('" . implode("','", $values['enums'])
|
||||
. "'))";
|
||||
}
|
||||
|
||||
/**
|
||||
* @todo Make this work like {@link MySQLDatabase::set()}
|
||||
*/
|
||||
public function set($values) {
|
||||
return $this->enum($values);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a float type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function float($values) {
|
||||
return 'float(53) not null default ' . $values['default'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a int type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function int($values) {
|
||||
//We'll be using an 8 digit precision to keep it in line with the serial8 datatype for ID columns
|
||||
return 'numeric(8) not null default ' . (int) $values['default'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a datetime type-formatted string
|
||||
* For MS SQL, we simply return the word 'timestamp', no other parameters are necessary
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function ss_datetime($values) {
|
||||
return 'datetime null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a text type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function text($values) {
|
||||
$collation = self::$collation ? " COLLATE " . self::$collation : "";
|
||||
return "nvarchar(max)$collation null";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a time type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function time($values){
|
||||
return 'time null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a varchar type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function varchar($values) {
|
||||
$collation = self::$collation ? " COLLATE " . self::$collation : "";
|
||||
return "nvarchar(" . $values['precision'] . ")$collation null";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a 4 digit numeric type.
|
||||
* @return string
|
||||
*/
|
||||
public function year($values) {
|
||||
return 'numeric(4)';
|
||||
}
|
||||
|
||||
/**
|
||||
* This returns the column which is the primary key for each table
|
||||
* In Postgres, it is a SERIAL8, which is the equivalent of an auto_increment
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
function IdColumn($asDbValue=false, $hasAutoIncPK=true){
|
||||
if($asDbValue)
|
||||
return 'bigint not null';
|
||||
else {
|
||||
if($hasAutoIncPK)
|
||||
return 'bigint identity(1,1)';
|
||||
else return 'bigint not null';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the SQL command to get all the tables in this database
|
||||
*/
|
||||
function allTablesSQL(){
|
||||
return "SELECT \"name\" FROM \"sys\".\"tables\";";
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns true if this table exists
|
||||
* @todo Make a proper implementation
|
||||
*/
|
||||
function hasTable($tableName) {
|
||||
$SQL_tableName = Convert::raw2sql($tableName);
|
||||
$value = DB::query("SELECT table_name FROM information_schema.tables WHERE table_name = '$SQL_tableName'")->value();
|
||||
return (bool)$value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the values of the given enum field
|
||||
* NOTE: Experimental; introduced for db-abstraction and may changed before 2.4 is released.
|
||||
*/
|
||||
public function enumValuesForField($tableName, $fieldName) {
|
||||
$classes = array();
|
||||
|
||||
// Get the enum of all page types from the SiteTree table
|
||||
$clause = $this->getConstraintCheckClause($tableName, $fieldName);
|
||||
if($clause) {
|
||||
$classes = $this->enumValuesFromCheckClause($clause);
|
||||
}
|
||||
|
||||
return $classes;
|
||||
}
|
||||
|
||||
/**
|
||||
* SQL Server uses CURRENT_TIMESTAMP for the current date/time.
|
||||
*/
|
||||
@ -1274,136 +171,6 @@ class MSSQLDatabase extends SS_Database {
|
||||
return 'RAND()';
|
||||
}
|
||||
|
||||
/**
|
||||
* This is a lookup table for data types.
|
||||
*
|
||||
* For instance, MSSQL uses 'BIGINT', while MySQL uses 'UNSIGNED'
|
||||
* and PostgreSQL uses 'INT'.
|
||||
*/
|
||||
function dbDataType($type){
|
||||
$values = array(
|
||||
'unsigned integer'=>'BIGINT'
|
||||
);
|
||||
if(isset($values[$type])) return $values[$type];
|
||||
else return '';
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a SQLQuery object into a SQL statement.
|
||||
*
|
||||
* Needs to be overloaded from {@link Database} because MSSQL has
|
||||
* a very specific way of limiting results from a query.
|
||||
*
|
||||
* @param SQLQuery
|
||||
* @return string SQL text
|
||||
*/
|
||||
public function sqlQueryToString(SQLQuery $query) {
|
||||
// get the limit and offset
|
||||
$limit = '';
|
||||
$offset = '0';
|
||||
$text = '';
|
||||
$suffixText = '';
|
||||
$nestedQuery = false;
|
||||
|
||||
if(is_array($query->getLimit())) {
|
||||
$limitArr = $query->getLimit();
|
||||
if(isset($limitArr['limit'])) $limit = $limitArr['limit'];
|
||||
if(isset($limitArr['start'])) $offset = $limitArr['start'];
|
||||
} else if(preg_match('/^([0-9]+) offset ([0-9]+)$/i', trim($query->getLimit()), $matches)) {
|
||||
$limit = $matches[1];
|
||||
$offset = $matches[2];
|
||||
} else {
|
||||
//could be a comma delimited string
|
||||
$bits = explode(',', $query->getLimit());
|
||||
if(sizeof($bits) > 1) {
|
||||
list($offset, $limit) = $bits;
|
||||
} else {
|
||||
$limit = $bits[0];
|
||||
}
|
||||
}
|
||||
|
||||
// DELETE queries
|
||||
if($query->getDelete()) {
|
||||
$text = 'DELETE ';
|
||||
} else {
|
||||
$distinct = $query->getDistinct() ? 'DISTINCT ' : '';
|
||||
// If there's a limit but no offset, just use 'TOP X'
|
||||
// rather than the more complex sub-select method
|
||||
if ($limit != 0 && $offset == 0) {
|
||||
$text = "SELECT $distinct TOP $limit";
|
||||
|
||||
// If there's a limit and an offset, then we need to do a subselect
|
||||
} else if($limit && $offset) {
|
||||
$orderby = $query->getOrderBy();
|
||||
|
||||
// workaround for subselect not working with alias functions
|
||||
// just use the function directly in the order by instead of the alias
|
||||
$selects = $query->getSelect();
|
||||
foreach($orderby as $field => $dir) {
|
||||
if(preg_match('/_SortColumn/', $field)) {
|
||||
unset($orderby[$field]);
|
||||
$orderby[$selects[str_replace('"', '', $field)]] = $dir;
|
||||
}
|
||||
}
|
||||
|
||||
if($orderby) {
|
||||
$orderByClause = $this->sqlOrderByToString($orderby);
|
||||
$rowNumber = "ROW_NUMBER() OVER ($orderByClause) AS Number";
|
||||
} else {
|
||||
$selects = $query->getSelect();
|
||||
$firstCol = reset($selects);
|
||||
$rowNumber = "ROW_NUMBER() OVER (ORDER BY $firstCol) AS Number";
|
||||
}
|
||||
$text = "SELECT * FROM (SELECT $distinct$rowNumber, ";
|
||||
$suffixText .= ") AS Numbered WHERE Number BETWEEN " . ($offset+1) ." AND " . ($offset+$limit)
|
||||
. " ORDER BY Number";
|
||||
$nestedQuery = true;
|
||||
|
||||
// Otherwise a simple query
|
||||
} else {
|
||||
$text = "SELECT $distinct";
|
||||
}
|
||||
|
||||
// Now add the columns to be selected
|
||||
// strip off the SELECT text as it gets done above instead
|
||||
$text .= trim(str_replace('SELECT' , '', $this->sqlSelectToString($query->getSelect())));
|
||||
}
|
||||
|
||||
if($query->getFrom()) $text .= $this->sqlFromToString($query->getFrom());
|
||||
if($query->getWhere()) $text .= $this->sqlWhereToString($query->getWhere(), $query->getConnective());
|
||||
|
||||
// these clauses only make sense in SELECT queries, not DELETE
|
||||
if(!$query->getDelete()) {
|
||||
if($query->getGroupBy()) $text .= $this->sqlGroupByToString($query->getGroupBy());
|
||||
if($query->getHaving()) $text .= $this->sqlHavingToString($query->getHaving());
|
||||
if($query->getOrderBy() && !$nestedQuery) $text .= $this->sqlOrderByToString($query->getOrderBy());
|
||||
}
|
||||
|
||||
// $suffixText is used by the nested queries to create an offset limit
|
||||
if($suffixText) $text .= $suffixText;
|
||||
|
||||
return $text;
|
||||
}
|
||||
|
||||
/**
|
||||
* Escapes a value with specific escape characters specific to the MSSQL.
|
||||
* @param string $value String to escape
|
||||
* @return string Escaped string
|
||||
*/
|
||||
function addslashes($value){
|
||||
$value=str_replace("'","''",$value);
|
||||
$value=str_replace("\0","[NULL]",$value);
|
||||
|
||||
return $value;
|
||||
}
|
||||
|
||||
/**
|
||||
* This changes the index name depending on database requirements.
|
||||
*/
|
||||
function modifyIndex($index) {
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* The core search engine configuration.
|
||||
* Picks up the fulltext-indexed tables from the database and executes search on all of them.
|
||||
@ -1422,28 +189,31 @@ class MSSQLDatabase extends SS_Database {
|
||||
|
||||
$allClassesToSearch = array();
|
||||
foreach ($classesToSearch as $class) {
|
||||
$allClassesToSearch = array_merge($allClassesToSearch, ClassInfo::dataClassesFor($class));
|
||||
$allClassesToSearch = array_merge($allClassesToSearch, array_values(ClassInfo::dataClassesFor($class)));
|
||||
}
|
||||
$allClassesToSearch = array_unique($allClassesToSearch);
|
||||
|
||||
//Get a list of all the tables and columns we'll be searching on:
|
||||
$fulltextColumns = DB::query('EXEC sp_help_fulltext_columns');
|
||||
$fulltextColumns = $this->query('EXEC sp_help_fulltext_columns');
|
||||
$queries = array();
|
||||
|
||||
// Sort the columns back into tables.
|
||||
$tables = array();
|
||||
foreach($fulltextColumns as $column) {
|
||||
// Skip extension tables.
|
||||
if(substr($column['TABLE_NAME'], -5)=='_Live' || substr($column['TABLE_NAME'], -9)=='_versions') continue;
|
||||
if(substr($column['TABLE_NAME'], -5) == '_Live' || substr($column['TABLE_NAME'], -9) == '_versions') continue;
|
||||
|
||||
// Add the column to table.
|
||||
$table = &$tables[$column['TABLE_NAME']];
|
||||
if (!$table) $table = array($column['FULLTEXT_COLUMN_NAME']);
|
||||
else array_push($table, $column['FULLTEXT_COLUMN_NAME']);
|
||||
if (!$table) {
|
||||
$table = array($column['FULLTEXT_COLUMN_NAME']);
|
||||
} else {
|
||||
array_push($table, $column['FULLTEXT_COLUMN_NAME']);
|
||||
}
|
||||
}
|
||||
|
||||
// Create one query per each table, $columns not used. We want just the ID and the ClassName of the object from this query.
|
||||
foreach($tables as $tableName=>$columns){
|
||||
foreach($tables as $tableName => $columns){
|
||||
$baseClass = ClassInfo::baseDataClass($tableName);
|
||||
|
||||
$join = $this->fullTextSearchMSSQL($tableName, $keywords);
|
||||
@ -1479,23 +249,28 @@ class MSSQLDatabase extends SS_Database {
|
||||
$queries[$tableName]->addWhere($extraFilter);
|
||||
}
|
||||
if (count($allClassesToSearch)) {
|
||||
$queries[$tableName]->addWhere("\"$baseClass\".\"ClassName\" IN ('".implode($allClassesToSearch, "', '")."')");
|
||||
$classesPlaceholder = DB::placeholders($allClassesToSearch);
|
||||
$queries[$tableName]->addWhere(array(
|
||||
"\"$baseClass\".\"ClassName\" IN ($classesPlaceholder)" =>
|
||||
$allClassesToSearch
|
||||
));
|
||||
}
|
||||
// Reset the parameters that would get in the way
|
||||
|
||||
}
|
||||
|
||||
// Generate SQL
|
||||
$querySQLs = array();
|
||||
$queryParameters = array();
|
||||
foreach($queries as $query) {
|
||||
$querySQLs[] = $query->sql();
|
||||
$querySQLs[] = $query->sql($parameters);
|
||||
$queryParameters = array_merge($queryParameters, $parameters);
|
||||
}
|
||||
|
||||
// Unite the SQL
|
||||
$fullQuery = implode(" UNION ", $querySQLs) . " ORDER BY $sortBy";
|
||||
|
||||
// Perform the search
|
||||
$result = DB::query($fullQuery);
|
||||
$result = $this->preparedQuery($fullQuery, $queryParameters);
|
||||
|
||||
// Regenerate DataObjectSet - watch out, numRecords doesn't work on sqlsrv driver on Windows.
|
||||
$current = -1;
|
||||
@ -1515,16 +290,13 @@ class MSSQLDatabase extends SS_Database {
|
||||
$list->setPageStart($start);
|
||||
$list->setPageLength($pageLength);
|
||||
$list->setTotalItems($current+1);
|
||||
|
||||
// The list has already been limited by the query above
|
||||
$list->setLimitItems(false);
|
||||
|
||||
return $list;
|
||||
}
|
||||
|
||||
/**
|
||||
* Allow auto-increment primary key editing on the given table.
|
||||
* Some databases need to enable this specially.
|
||||
*
|
||||
* @param $table The name of the table to have PK editing allowed on
|
||||
* @param $allow True to start, false to finish
|
||||
*/
|
||||
@ -1532,21 +304,6 @@ class MSSQLDatabase extends SS_Database {
|
||||
$this->query("SET IDENTITY_INSERT \"$table\" " . ($allow ? "ON" : "OFF"));
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a fulltext index exists on a particular table name.
|
||||
* @return boolean TRUE index exists | FALSE index does not exist | NULL no support
|
||||
*/
|
||||
function fulltextIndexExists($tableName) {
|
||||
// Special case for no full text index support
|
||||
if(!$this->fullTextEnabled()) return null;
|
||||
|
||||
return (bool) $this->query("
|
||||
SELECT 1 FROM sys.fulltext_indexes i
|
||||
JOIN sys.objects o ON i.object_id = o.object_id
|
||||
WHERE o.name = '$tableName'
|
||||
")->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a SQL fragment for querying a fulltext search index
|
||||
*
|
||||
@ -1556,30 +313,26 @@ class MSSQLDatabase extends SS_Database {
|
||||
*
|
||||
* @returns null if keyword set is empty or the string with JOIN clause to be added to SQL query
|
||||
*/
|
||||
function fullTextSearchMSSQL($tableName, $keywords, $fields = null) {
|
||||
public function fullTextSearchMSSQL($tableName, $keywords, $fields = null) {
|
||||
// Make sure we are getting an array of fields
|
||||
if (isset($fields) && !is_array($fields)) $fields = array($fields);
|
||||
|
||||
// Strip unfriendly characters, SQLServer "CONTAINS" predicate will crash on & and | and ignore others anyway.
|
||||
if (function_exists('mb_ereg_replace')) {
|
||||
$keywords = mb_ereg_replace('[^\w\s]', '', trim($keywords));
|
||||
}
|
||||
else {
|
||||
$keywords = Convert::raw2sql(str_replace(array('&','|','!','"','\''), '', trim($keywords)));
|
||||
} else {
|
||||
$keywords = $this->escapeString(str_replace(array('&','|','!','"','\''), '', trim($keywords)));
|
||||
}
|
||||
|
||||
// Remove stopwords, concat with ANDs
|
||||
$keywords = explode(' ', $keywords);
|
||||
$keywords = self::removeStopwords($keywords);
|
||||
$keywordList = explode(' ', $keywords);
|
||||
$keywordList = $this->removeStopwords($keywordList);
|
||||
|
||||
// remove any empty values from the array
|
||||
foreach($keywords as $i => $word) {
|
||||
if(!strlen($word)) unset($keywords[$i]);
|
||||
}
|
||||
|
||||
$keywords = implode(' AND ', $keywords);
|
||||
if (!$keywords || trim($keywords)=='') return null;
|
||||
$keywordList = array_filter($keywordList);
|
||||
if(empty($keywordList)) return null;
|
||||
|
||||
$keywords = implode(' AND ', $keywordList);
|
||||
if ($fields) $fieldNames = '"' . implode('", "', $fields) . '"';
|
||||
else $fieldNames = "*";
|
||||
|
||||
@ -1593,7 +346,7 @@ class MSSQLDatabase extends SS_Database {
|
||||
*
|
||||
* @return array $keywords with stopwords removed
|
||||
*/
|
||||
static public function removeStopwords($keywords) {
|
||||
public function removeStopwords($keywords) {
|
||||
$goodKeywords = array();
|
||||
foreach($keywords as $keyword) {
|
||||
if (in_array($keyword, self::$noiseWords)) continue;
|
||||
@ -1612,8 +365,13 @@ class MSSQLDatabase extends SS_Database {
|
||||
/**
|
||||
* This is a quick lookup to discover if the database supports particular extensions
|
||||
* Currently, MSSQL supports no extensions
|
||||
*
|
||||
* @param array $extensions List of extensions to check for support of. The key of this array
|
||||
* will be an extension name, and the value the configuration for that extension. This
|
||||
* could be one of partitions, tablespaces, or clustering
|
||||
* @return boolean Flag indicating support for all of the above
|
||||
*/
|
||||
public function supportsExtensions($extensions=Array('partitions', 'tablespaces', 'clustering')){
|
||||
public function supportsExtensions($extensions = array('partitions', 'tablespaces', 'clustering')){
|
||||
if(isset($extensions['partitions']))
|
||||
return false;
|
||||
elseif(isset($extensions['tablespaces']))
|
||||
@ -1627,75 +385,37 @@ class MSSQLDatabase extends SS_Database {
|
||||
/**
|
||||
* Start transaction. READ ONLY not supported.
|
||||
*/
|
||||
public function transactionStart($transaction_mode=false, $session_characteristics=false){
|
||||
if($this->mssql) {
|
||||
DB::query('BEGIN TRANSACTION');
|
||||
public function transactionStart($transactionMode = false, $sessionCharacteristics = false){
|
||||
if($this->connector instanceof SQLServerConnector) {
|
||||
$this->connector->transactionStart();
|
||||
} else {
|
||||
$result = sqlsrv_begin_transaction($this->dbConn);
|
||||
if (!$result) $this->databaseError("Couldn't start the transaction.", E_USER_ERROR);
|
||||
$this->query('BEGIN TRANSACTION');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a savepoint that you can jump back to if you encounter problems
|
||||
*/
|
||||
public function transactionSavepoint($savepoint){
|
||||
DB::query("SAVE TRANSACTION \"$savepoint\"");
|
||||
$this->query("SAVE TRANSACTION \"$savepoint\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Rollback or revert to a savepoint if your queries encounter problems
|
||||
* If you encounter a problem at any point during a transaction, you may
|
||||
* need to rollback that particular query, or return to a savepoint
|
||||
*/
|
||||
public function transactionRollback($savepoint=false){
|
||||
public function transactionRollback($savepoint = false) {
|
||||
if($savepoint) {
|
||||
DB::query("ROLLBACK TRANSACTION \"$savepoint\"");
|
||||
$this->query("ROLLBACK TRANSACTION \"$savepoint\"");
|
||||
} elseif($this->connector instanceof SQLServerConnector) {
|
||||
$this->connector->transactionRollback();
|
||||
} else {
|
||||
if($this->mssql) {
|
||||
DB::query('ROLLBACK TRANSACTION');
|
||||
} else {
|
||||
$result = sqlsrv_rollback($this->dbConn);
|
||||
if (!$result) $this->databaseError("Couldn't rollback the transaction.", E_USER_ERROR);
|
||||
}
|
||||
$this->query('ROLLBACK TRANSACTION');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Commit everything inside this transaction so far
|
||||
*/
|
||||
public function transactionEnd(){
|
||||
if($this->mssql) {
|
||||
DB::query('COMMIT TRANSACTION');
|
||||
public function transactionEnd($chain = false) {
|
||||
if($this->connector instanceof SQLServerConnector) {
|
||||
$this->connector->transactionEnd();
|
||||
} else {
|
||||
$result = sqlsrv_commit($this->dbConn);
|
||||
if (!$result) $this->databaseError("Couldn't commit the transaction.", E_USER_ERROR);
|
||||
$this->query('COMMIT TRANSACTION');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Overload the Database::prepStringForDB() method and include "N" prefix so unicode
|
||||
* strings are saved to the database correctly.
|
||||
*
|
||||
* @param string $string String to be encoded
|
||||
* @return string Processed string ready for DB
|
||||
*/
|
||||
public function prepStringForDB($string) {
|
||||
return "N'" . Convert::raw2sql($string) . "'";
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a WHERE clause for text matching.
|
||||
*
|
||||
* @param String $field Quoted field name
|
||||
* @param String $value Escaped search. Can include percentage wildcards.
|
||||
* @param boolean $exact Exact matches or wildcard support.
|
||||
* @param boolean $negate Negate the clause.
|
||||
* @param boolean $caseSensitive Enforce case sensitivity if TRUE or FALSE.
|
||||
* Stick with default collation if set to NULL.
|
||||
* @return String SQL
|
||||
*/
|
||||
public function comparisonClause($field, $value, $exact = false, $negate = false, $caseSensitive = null) {
|
||||
public function comparisonClause($field, $value, $exact = false, $negate = false, $caseSensitive = null, $parameterised = false) {
|
||||
if($exact) {
|
||||
$comp = ($negate) ? '!=' : '=';
|
||||
} else {
|
||||
@ -1707,22 +427,22 @@ class MSSQLDatabase extends SS_Database {
|
||||
// change used collation for case sensitive searches.
|
||||
$collateClause = '';
|
||||
if($caseSensitive === true) {
|
||||
if(self::$collation) {
|
||||
$collation = preg_replace('/_CI_/', '_CS_', self::$collation);
|
||||
if(self::get_collation()) {
|
||||
$collation = preg_replace('/_CI_/', '_CS_', self::get_collation());
|
||||
} else {
|
||||
$collation = 'Latin1_General_CS_AS';
|
||||
}
|
||||
$collateClause = ' COLLATE ' . $collation;
|
||||
} elseif($caseSensitive === false) {
|
||||
if(self::$collation) {
|
||||
$collation = preg_replace('/_CS_/', '_CI_', self::$collation);
|
||||
if(self::get_collation()) {
|
||||
$collation = preg_replace('/_CS_/', '_CI_', self::get_collation());
|
||||
} else {
|
||||
$collation = 'Latin1_General_CI_AS';
|
||||
}
|
||||
$collateClause = ' COLLATE ' . $collation;
|
||||
}
|
||||
|
||||
$clause = sprintf("%s %s '%s'", $field, $comp, $value);
|
||||
$clause = sprintf("%s %s %s", $field, $comp, $parameterised ? '?' : "'$value'");
|
||||
if($collateClause) $clause .= $collateClause;
|
||||
|
||||
return $clause;
|
||||
@ -1731,6 +451,7 @@ class MSSQLDatabase extends SS_Database {
|
||||
/**
|
||||
* Function to return an SQL datetime expression for MSSQL
|
||||
* used for querying a datetime in a certain format
|
||||
*
|
||||
* @param string $date to be formated, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
|
||||
* @param string $format to be used, supported specifiers:
|
||||
* %Y = Year (four digits)
|
||||
@ -1792,6 +513,7 @@ class MSSQLDatabase extends SS_Database {
|
||||
/**
|
||||
* Function to return an SQL datetime expression for MSSQL.
|
||||
* used for querying a datetime addition
|
||||
*
|
||||
* @param string $date, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
|
||||
* @param string $interval to be added, use the format [sign][integer] [qualifier], e.g. -1 Day, +15 minutes, +1 YEAR
|
||||
* supported qualifiers:
|
||||
@ -1833,6 +555,7 @@ class MSSQLDatabase extends SS_Database {
|
||||
/**
|
||||
* Function to return an SQL datetime expression for MSSQL.
|
||||
* used for querying a datetime substraction
|
||||
*
|
||||
* @param string $date1, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
|
||||
* @param string $date2 to be substracted of $date1, can be either 'now', literal datetime like '1973-10-14 10:30:00' or field name, e.g. '"SiteTree"."Created"'
|
||||
* @return string SQL datetime expression to query for the interval between $date1 and $date2 in seconds which is the result of the substraction
|
||||
@ -1854,134 +577,3 @@ class MSSQLDatabase extends SS_Database {
|
||||
return "DATEDIFF(s, $date2, $date1)";
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A result-set from a MSSQL database.
|
||||
* @package sapphire
|
||||
* @subpackage model
|
||||
*/
|
||||
class MSSQLQuery extends SS_Query {
|
||||
|
||||
/**
|
||||
* The MSSQLDatabase object that created this result set.
|
||||
* @var MSSQLDatabase
|
||||
*/
|
||||
private $database;
|
||||
|
||||
/**
|
||||
* The internal MSSQL handle that points to the result set.
|
||||
* @var resource
|
||||
*/
|
||||
private $handle;
|
||||
|
||||
/**
|
||||
* If true, use the mssql_... functions.
|
||||
* If false use the sqlsrv_... functions
|
||||
*/
|
||||
private $mssql = null;
|
||||
|
||||
/**
|
||||
* A list of field meta-data, such as column name and data type.
|
||||
* @var array
|
||||
*/
|
||||
private $fields = array();
|
||||
|
||||
/**
|
||||
* Hook the result-set given into a Query class, suitable for use by sapphire.
|
||||
* @param database The database object that created this query.
|
||||
* @param handle the internal mssql handle that is points to the resultset.
|
||||
*/
|
||||
public function __construct(MSSQLDatabase $database, $handle, $mssql) {
|
||||
$this->database = $database;
|
||||
$this->handle = $handle;
|
||||
$this->mssql = $mssql;
|
||||
|
||||
// build a list of field meta-data for this query we'll use in nextRecord()
|
||||
// doing it here once saves us from calling mssql_fetch_field() in nextRecord()
|
||||
// potentially hundreds of times, which is unnecessary.
|
||||
if($this->mssql && is_resource($this->handle)) {
|
||||
for($i = 0; $i < mssql_num_fields($handle); $i++) {
|
||||
$this->fields[$i] = mssql_fetch_field($handle, $i);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public function __destruct() {
|
||||
if(is_resource($this->handle)) {
|
||||
if($this->mssql) {
|
||||
mssql_free_result($this->handle);
|
||||
} else {
|
||||
sqlsrv_free_stmt($this->handle);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public function seek($row) {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
if($this->mssql) {
|
||||
return mssql_data_seek($this->handle, $row);
|
||||
} else {
|
||||
user_error('MSSQLQuery::seek() not supported in sqlsrv', E_USER_WARNING);
|
||||
}
|
||||
}
|
||||
|
||||
public function numRecords() {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
if($this->mssql) {
|
||||
return mssql_num_rows($this->handle);
|
||||
} else {
|
||||
// WARNING: This will only work if the cursor type is scrollable!
|
||||
if(function_exists('sqlsrv_num_rows')) {
|
||||
return sqlsrv_num_rows($this->handle);
|
||||
} else {
|
||||
user_error('MSSQLQuery::numRecords() not supported in this version of sqlsrv', E_USER_WARNING);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public function nextRecord() {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
if($this->mssql) {
|
||||
if($row = mssql_fetch_row($this->handle)) {
|
||||
foreach($row as $i => $value) {
|
||||
$field = $this->fields[$i];
|
||||
|
||||
// fix datetime formatting from format "Jan 1 2012 12:00:00:000AM" to "2012-01-01 12:00:00"
|
||||
// strtotime doesn't understand this format, so we need to do some modification of the value first
|
||||
if($field->type == 'datetime' && $value) {
|
||||
$value = date('Y-m-d H:i:s', strtotime(preg_replace('/:[0-9][0-9][0-9]([ap]m)$/i', ' \\1', $value)));
|
||||
}
|
||||
|
||||
if(isset($value) || !isset($data[$field->name])) {
|
||||
$data[$field->name] = $value;
|
||||
}
|
||||
}
|
||||
return $data;
|
||||
} else {
|
||||
// free the handle, no more results
|
||||
mssql_free_result($this->handle);
|
||||
$this->handle = null;
|
||||
}
|
||||
} else {
|
||||
if($data = sqlsrv_fetch_array($this->handle, SQLSRV_FETCH_ASSOC)) {
|
||||
|
||||
// special case for sqlsrv - date values are DateTime coming out of the sqlsrv drivers,
|
||||
// so we convert to the usual Y-m-d H:i:s value!
|
||||
foreach($data as $name => $value) {
|
||||
if($value instanceof DateTime) $data[$name] = $value->format('Y-m-d H:i:s');
|
||||
}
|
||||
return $data;
|
||||
} else {
|
||||
// Free the handle if there are no more results - sqlsrv crashes if there are too many handles
|
||||
sqlsrv_free_stmt($this->handle);
|
||||
$this->handle = null;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* This is a helper class for the SS installer.
|
||||
*
|
||||
@ -9,49 +10,115 @@
|
||||
*/
|
||||
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;
|
||||
protected function isAzure($databaseConfig) {
|
||||
return $databaseConfig['type'] === 'MSSQLAzureDatabase';
|
||||
}
|
||||
|
||||
/**
|
||||
* 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')
|
||||
* Create a connection of the appropriate type
|
||||
*
|
||||
* @param array $databaseConfig
|
||||
* @param string $error Error message passed by value
|
||||
* @return mixed|null Either the connection object, or null if error
|
||||
*/
|
||||
public function requireDatabaseServer($databaseConfig) {
|
||||
$success = false;
|
||||
$error = '';
|
||||
protected function createConnection($databaseConfig, &$error) {
|
||||
$error = null;
|
||||
try {
|
||||
switch($databaseConfig['type']) {
|
||||
case 'MSSQLDatabase':
|
||||
case 'MSSQLAzureDatabase':
|
||||
$parameters = array(
|
||||
'UID' => $databaseConfig['username'],
|
||||
'PWD' => $databaseConfig['password']
|
||||
);
|
||||
|
||||
if(function_exists('mssql_connect')) {
|
||||
$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
|
||||
// Azure has additional parameter requirements
|
||||
if($this->isAzure($databaseConfig)) {
|
||||
$parameters['database'] = $databaseConfig['database'];
|
||||
$parameters['multipleactiveresultsets'] = 0;
|
||||
}
|
||||
$conn = @sqlsrv_connect($databaseConfig['server'], $parameters);
|
||||
if($conn) return $conn;
|
||||
|
||||
// Get error
|
||||
if($errors = sqlsrv_errors()) {
|
||||
$error = '';
|
||||
foreach($errors as $detail) {
|
||||
$error .= "{$detail['message']}\n";
|
||||
}
|
||||
} else {
|
||||
$error = 'Unknown connection error';
|
||||
}
|
||||
return null;
|
||||
case 'MSSQLPDODatabase':
|
||||
// May throw a PDOException if fails
|
||||
$conn = @new PDO('sqlsrv:Server='.$databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password']);
|
||||
if($conn) {
|
||||
return $conn;
|
||||
} else {
|
||||
$error = 'Unknown connection error';
|
||||
return null;
|
||||
}
|
||||
default:
|
||||
$error = 'Invalid connection type';
|
||||
return null;
|
||||
}
|
||||
} catch(Exception $ex) {
|
||||
$error = $ex->getMessage();
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper function to quote a string value
|
||||
*
|
||||
* @param mixed $conn Connection object/resource
|
||||
* @param string $value Value to quote
|
||||
* @return string Quoted strieng
|
||||
*/
|
||||
protected function quote($conn, $value) {
|
||||
if($conn instanceof PDO) {
|
||||
return $conn->quote($value);
|
||||
} elseif(is_resource($conn)) {
|
||||
$value = str_replace("'", "''", $value);
|
||||
$value = str_replace("\0", "[NULL]", $value);
|
||||
return "N'$value'";
|
||||
} else {
|
||||
$conn = @sqlsrv_connect($databaseConfig['server'], array(
|
||||
'UID' => $databaseConfig['username'],
|
||||
'PWD' => $databaseConfig['password']
|
||||
));
|
||||
user_error('Invalid database connection', E_USER_ERROR);
|
||||
}
|
||||
}
|
||||
|
||||
$errors = sqlsrv_errors();
|
||||
if($errors) {
|
||||
$error .= "\n";
|
||||
foreach($errors as $detail) {
|
||||
$error .= "\n" . @$detail['message'] . "\n";
|
||||
}
|
||||
/**
|
||||
* Helper function to execute a query
|
||||
*
|
||||
* @param mixed $conn Connection object/resource
|
||||
* @param string $sql SQL string to execute
|
||||
* @return array List of first value from each resulting row
|
||||
*/
|
||||
protected function query($conn, $sql) {
|
||||
$items = array();
|
||||
if($conn instanceof PDO) {
|
||||
$result = $conn->query($sql);
|
||||
if($result) foreach($result as $row) {
|
||||
$items[] = $row[0];
|
||||
}
|
||||
} elseif(is_resource($conn)) {
|
||||
$result = sqlsrv_query($conn, $sql);
|
||||
if($result) while ($row = sqlsrv_fetch_array($result, SQLSRV_FETCH_NUMERIC)) {
|
||||
$items[] = $row[0];
|
||||
}
|
||||
}
|
||||
return $items;
|
||||
}
|
||||
|
||||
if($conn) {
|
||||
$success = true;
|
||||
} else {
|
||||
$success = false;
|
||||
if(!$error) $error = 'SQL Server requires a valid username and password to determine if the server exists.';
|
||||
}
|
||||
public function requireDatabaseFunctions($databaseConfig) {
|
||||
$data = DatabaseAdapterRegistry::get_adapter($databaseConfig['type']);
|
||||
return !empty($data['supported']);
|
||||
}
|
||||
|
||||
public function requireDatabaseServer($databaseConfig) {
|
||||
$conn = $this->createConnection($databaseConfig, $error);
|
||||
$success = !empty($conn);
|
||||
|
||||
return array(
|
||||
'success' => $success,
|
||||
@ -59,37 +126,9 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensure a database connection is possible using credentials provided.
|
||||
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
|
||||
* @return array Result - e.g. array('success' => true, 'error' => 'details of error')
|
||||
*/
|
||||
public function requireDatabaseConnection($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']
|
||||
));
|
||||
|
||||
$errors = sqlsrv_errors();
|
||||
if($errors) {
|
||||
$error .= "\n";
|
||||
foreach($errors as $detail) {
|
||||
$error .= "\n" . @$detail['message'] . "\n";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if($conn) {
|
||||
$success = true;
|
||||
} else {
|
||||
$success = false;
|
||||
}
|
||||
$conn = $this->createConnection($databaseConfig, $error);
|
||||
$success = !empty($conn);
|
||||
|
||||
return array(
|
||||
'success' => $success,
|
||||
@ -99,31 +138,14 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
|
||||
}
|
||||
|
||||
public function getDatabaseVersion($databaseConfig) {
|
||||
$version = 0;
|
||||
|
||||
// Get the version using SERVERPROPERTY() function
|
||||
if(function_exists('mssql_connect')) {
|
||||
$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
|
||||
$result = @mssql_query("SELECT CONVERT(char(15), SERVERPROPERTY('ProductVersion'))", $conn);
|
||||
$row = @mssql_fetch_array($result);
|
||||
} else {
|
||||
$conn = @sqlsrv_connect($databaseConfig['server'], array(
|
||||
'UID' => $databaseConfig['username'],
|
||||
'PWD' => $databaseConfig['password']
|
||||
));
|
||||
$result = @sqlsrv_query($conn, "SELECT CONVERT(char(15), SERVERPROPERTY('ProductVersion'))");
|
||||
$row = @sqlsrv_fetch_array($result);
|
||||
}
|
||||
|
||||
if($row && isset($row[0])) {
|
||||
$version = trim($row[0]);
|
||||
}
|
||||
|
||||
return $version;
|
||||
$conn = $this->createConnection($databaseConfig, $error);
|
||||
$result = $this->query($conn, "SELECT CONVERT(char(15), SERVERPROPERTY('ProductVersion'))");
|
||||
return empty($result) ? 0 : reset($result);
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensure that the SQL Server version is at least 10.00.2531 (SQL Server 2008 SP1).
|
||||
*
|
||||
* @see http://www.sqlteam.com/article/sql-server-versions
|
||||
* @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')
|
||||
@ -148,37 +170,24 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* 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')) {
|
||||
$exists = @mssql_select_db($databaseConfig['database'], $conn);
|
||||
} else {
|
||||
$exists = @sqlsrv_query($conn, "USE \"$databaseConfig[database]\"");
|
||||
}
|
||||
|
||||
if($exists) {
|
||||
$conn = $this->createConnection($databaseConfig, $error);
|
||||
if(empty($conn)) {
|
||||
$success = false;
|
||||
$alreadyExists = false;
|
||||
} elseif($databaseConfig['type'] == 'MSSQLAzureDatabase') {
|
||||
// Don't bother with DB selection for azure, as it's not supported
|
||||
$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");
|
||||
// does this database exist already?
|
||||
$list = $this->query($conn, 'SELECT NAME FROM sys.sysdatabases');
|
||||
if(in_array($databaseConfig['database'], $list)) {
|
||||
$success = true;
|
||||
$alreadyExists = true;
|
||||
} else {
|
||||
$permissions = $this->query($conn, "select COUNT(*) from sys.fn_my_permissions('','') where permission_name like 'CREATE ANY DATABASE' or permission_name like 'CREATE DATABASE';");
|
||||
$success = $permissions[0] > 0;
|
||||
$alreadyExists = false;
|
||||
}
|
||||
}
|
||||
@ -189,15 +198,21 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Ensure we have permissions to alter tables.
|
||||
*
|
||||
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
|
||||
* @return array Result - e.g. array('okay' => true, 'applies' => true), where applies is whether
|
||||
* the test is relevant for the database
|
||||
*/
|
||||
public function requireDatabaseAlterPermissions($databaseConfig) {
|
||||
return array('success' => true, 'applies' => false);
|
||||
}
|
||||
$success = false;
|
||||
$conn = $this->createConnection($databaseConfig, $error);
|
||||
if(!empty($conn)) {
|
||||
if(!$this->isAzure($databaseConfig)) {
|
||||
// Make sure to select the current database when checking permission against this database
|
||||
$this->query($conn, "USE \"{$databaseConfig['database']}\"");
|
||||
}
|
||||
$permissions = $this->query($conn, "select COUNT(*) from sys.fn_my_permissions(NULL,'DATABASE') WHERE permission_name like 'create table';");
|
||||
$success = $permissions[0] > 0;
|
||||
}
|
||||
|
||||
return array(
|
||||
'success' => $success,
|
||||
'applies' => true
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
112
code/MSSQLQueryBuilder.php
Normal file
112
code/MSSQLQueryBuilder.php
Normal file
@ -0,0 +1,112 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* Builds a SQL query string from a SQLExpression object
|
||||
*
|
||||
* @package mssql
|
||||
*/
|
||||
class MSSQLQueryBuilder extends DBQueryBuilder {
|
||||
|
||||
protected function buildSelectQuery(SQLSelect $query, array &$parameters) {
|
||||
list($limit, $offset) = $this->parseLimit($query);
|
||||
|
||||
// If not using ofset then query generation is quite straightforward
|
||||
if(empty($offset)) {
|
||||
$sql = parent::buildSelectQuery($query, $parameters);
|
||||
// Inject limit into SELECT fragment
|
||||
if(!empty($limit)) {
|
||||
$sql = preg_replace('/^(SELECT (DISTINCT)?)/i', '${1} TOP '.$limit, $sql);
|
||||
}
|
||||
return $sql;
|
||||
}
|
||||
|
||||
// When using offset we must use a subselect
|
||||
// @see http://stackoverflow.com/questions/2135418/equivalent-of-limit-and-offset-for-sql-server
|
||||
$orderby = $query->getOrderBy();
|
||||
|
||||
// workaround for subselect not working with alias functions
|
||||
// just use the function directly in the order by instead of the alias
|
||||
$selects = $query->getSelect();
|
||||
foreach($orderby as $field => $dir) {
|
||||
if(preg_match('/_SortColumn/', $field)) {
|
||||
unset($orderby[$field]);
|
||||
$orderby[$selects[str_replace('"', '', $field)]] = $dir;
|
||||
}
|
||||
}
|
||||
|
||||
// Create order expression, using the first column if none explicitly specified
|
||||
if($orderby) {
|
||||
// Simple implementation of buildOrderByFragment
|
||||
$statements = array();
|
||||
foreach ($orderby as $clause => $dir) {
|
||||
$statements[] = trim("$clause $dir");
|
||||
}
|
||||
$orderByClause = "ORDER BY " . implode(', ', $statements);
|
||||
} else {
|
||||
$selects = $query->getSelect();
|
||||
$firstCol = reset($selects);
|
||||
$orderByClause = "ORDER BY $firstCol";
|
||||
}
|
||||
|
||||
// Build main query SQL
|
||||
$sql = parent::buildSelectQuery($query, $parameters);
|
||||
|
||||
// Inject row number into selection
|
||||
$sql = preg_replace('/^(SELECT (DISTINCT)?)/i', '${1} ROW_NUMBER() OVER ('.$orderByClause.') AS Number, ', $sql);
|
||||
|
||||
// Sub-query this SQL
|
||||
if(empty($limit)) {
|
||||
$limitCondition = "Number > ?";
|
||||
$parameters[] = $offset;
|
||||
} else {
|
||||
$limitCondition = "Number BETWEEN ? AND ?";
|
||||
$parameters[] = $offset + 1;
|
||||
$parameters[] = $offset + $limit;
|
||||
}
|
||||
return "SELECT * FROM ($sql) AS Numbered WHERE $limitCondition ORDER BY Number";
|
||||
}
|
||||
|
||||
public function buildLimitFragment(SQLSelect $query, array &$parameters) {
|
||||
// Limit is handled at the buildSelectQuery level
|
||||
return '';
|
||||
}
|
||||
|
||||
public function buildOrderByFragment(SQLSelect $query, array &$parameters) {
|
||||
// If doing a limit/offset at the same time then don't build the orde by fragment here
|
||||
list($offset, $limit) = $this->parseLimit($query);
|
||||
if(empty($offset) || empty($limit)) {
|
||||
return parent::buildOrderByFragment($query, $parameters);
|
||||
}
|
||||
return '';
|
||||
}
|
||||
|
||||
/**
|
||||
* Extracts the limit and offset from the limit clause
|
||||
*
|
||||
* @param SQLSelect $query
|
||||
* @return array Two item array with $limit and $offset as values
|
||||
* @throws InvalidArgumentException
|
||||
*/
|
||||
protected function parseLimit(SQLSelect $query) {
|
||||
|
||||
$limit = '';
|
||||
$offset = '0';
|
||||
if(is_array($query->getLimit())) {
|
||||
$limitArr = $query->getLimit();
|
||||
if(isset($limitArr['limit'])) $limit = $limitArr['limit'];
|
||||
if(isset($limitArr['start'])) $offset = $limitArr['start'];
|
||||
} else if(preg_match('/^([0-9]+) offset ([0-9]+)$/i', trim($query->getLimit()), $matches)) {
|
||||
$limit = $matches[1];
|
||||
$offset = $matches[2];
|
||||
} else {
|
||||
//could be a comma delimited string
|
||||
$bits = explode(',', $query->getLimit());
|
||||
if(sizeof($bits) > 1) {
|
||||
list($offset, $limit) = $bits;
|
||||
} else {
|
||||
$limit = $bits[0];
|
||||
}
|
||||
}
|
||||
return array($limit, $offset);
|
||||
}
|
||||
}
|
||||
848
code/MSSQLSchemaManager.php
Normal file
848
code/MSSQLSchemaManager.php
Normal file
@ -0,0 +1,848 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* Represents and handles all schema management for a MS SQL database
|
||||
*
|
||||
* @package mssql
|
||||
*/
|
||||
class MSSQLSchemaManager extends DBSchemaManager {
|
||||
|
||||
/**
|
||||
* Stores per-request cached constraint checks that come from the database.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected static $cached_checks = array();
|
||||
|
||||
/**
|
||||
* Builds the internal MS SQL Server index name given the silverstripe table and index name
|
||||
*
|
||||
* @param string $tableName
|
||||
* @param string $indexName
|
||||
* @param string $prefix The optional prefix for the index. Defaults to "ix" for indexes.
|
||||
* @return string The postgres name of the index
|
||||
*/
|
||||
function buildMSSQLIndexName($tableName, $indexName, $prefix = 'ix') {
|
||||
|
||||
// Cleanup names of namespaced tables
|
||||
$tableName = str_replace('\\', '_', $tableName);
|
||||
$indexName = str_replace('\\', '_', $indexName);
|
||||
|
||||
return "{$prefix}_{$tableName}_{$indexName}";
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* This will set up the full text search capabilities.
|
||||
*
|
||||
* @param string $name Name of full text catalog to use
|
||||
*/
|
||||
function createFullTextCatalog($name = 'ftCatalog') {
|
||||
$result = $this->fullTextCatalogExists();
|
||||
if(!$result) $this->query("CREATE FULLTEXT CATALOG \"$name\" AS DEFAULT;");
|
||||
}
|
||||
|
||||
/**
|
||||
* Check that a fulltext catalog has been created yet.
|
||||
*
|
||||
* @param string $name Name of full text catalog to use
|
||||
* @return boolean
|
||||
*/
|
||||
public function fullTextCatalogExists($name = 'ftCatalog') {
|
||||
return (bool) $this->preparedQuery(
|
||||
"SELECT name FROM sys.fulltext_catalogs WHERE name = ?;",
|
||||
array($name)
|
||||
)->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sleep until the catalog has been fully rebuilt. This is a busy wait designed for situations
|
||||
* when you need to be sure the index is up to date - for example in unit tests.
|
||||
*
|
||||
* TODO: move this to Database class? Can we assume this will be useful for all databases?
|
||||
* Also see the wrapper functions "waitUntilIndexingFinished" in SearchFormTest and TranslatableSearchFormTest
|
||||
*
|
||||
* @param int $maxWaitingTime Time in seconds to wait for the database.
|
||||
*/
|
||||
function waitUntilIndexingFinished($maxWaitingTime = 15) {
|
||||
if(!$this->database->fullTextEnabled()) return;
|
||||
|
||||
$this->query("EXEC sp_fulltext_catalog 'ftCatalog', 'Rebuild';");
|
||||
|
||||
// Busy wait until it's done updating, but no longer than 15 seconds.
|
||||
$start = time();
|
||||
while(time() - $start < $maxWaitingTime) {
|
||||
$status = $this->query("EXEC sp_help_fulltext_catalogs 'ftCatalog';")->first();
|
||||
|
||||
if (isset($status['STATUS']) && $status['STATUS'] == 0) {
|
||||
// Idle!
|
||||
break;
|
||||
}
|
||||
sleep(1);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a fulltext index exists on a particular table name.
|
||||
*
|
||||
* @param string $tableName
|
||||
* @return boolean TRUE index exists | FALSE index does not exist | NULL no support
|
||||
*/
|
||||
function fulltextIndexExists($tableName) {
|
||||
// Special case for no full text index support
|
||||
if(!$this->database->fullTextEnabled()) return null;
|
||||
|
||||
return (bool) $this->preparedQuery("
|
||||
SELECT 1 FROM sys.fulltext_indexes i
|
||||
JOIN sys.objects o ON i.object_id = o.object_id
|
||||
WHERE o.name = ?",
|
||||
array($tableName)
|
||||
)->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* MSSQL stores the primary key column with an internal identifier,
|
||||
* so a lookup needs to be done to determine it.
|
||||
*
|
||||
* @param string $tableName Name of table with primary key column "ID"
|
||||
* @return string Internal identifier for primary key
|
||||
*/
|
||||
function getPrimaryKey($tableName){
|
||||
$indexes = $this->query("EXEC sp_helpindex '$tableName';");
|
||||
$indexName = '';
|
||||
foreach($indexes as $index) {
|
||||
if($index['index_keys'] == 'ID') {
|
||||
$indexName = $index['index_name'];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return $indexName;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the identity column of a table
|
||||
*
|
||||
* @param string $tableName
|
||||
* @return string|null
|
||||
*/
|
||||
function getIdentityColumn($tableName) {
|
||||
return $this->preparedQuery("
|
||||
SELECT
|
||||
TABLE_NAME + '.' + COLUMN_NAME,
|
||||
TABLE_NAME
|
||||
FROM
|
||||
INFORMATION_SCHEMA.COLUMNS
|
||||
WHERE
|
||||
TABLE_SCHEMA = ? AND
|
||||
COLUMNPROPERTY(object_id(TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1 AND
|
||||
TABLE_NAME = ?
|
||||
", array('dbo', $tableName))->value();
|
||||
}
|
||||
|
||||
public function createDatabase($name) {
|
||||
$this->query("CREATE DATABASE \"$name\"");
|
||||
}
|
||||
|
||||
public function dropDatabase($name) {
|
||||
$this->query("DROP DATABASE \"$name\"");
|
||||
}
|
||||
|
||||
public function databaseExists($name) {
|
||||
$databases = $this->databaseList();
|
||||
foreach($databases as $dbname) {
|
||||
if($dbname == $name) return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public function databaseList() {
|
||||
return $this->query('SELECT NAME FROM sys.sysdatabases')->column();
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new table.
|
||||
* @param $tableName The name of the table
|
||||
* @param $fields A map of field names to field types
|
||||
* @param $indexes A map of indexes
|
||||
* @param $options An map of additional options. The available keys are as follows:
|
||||
* - 'MSSQLDatabase'/'MySQLDatabase'/'PostgreSQLDatabase' - database-specific options such as "engine" for MySQL.
|
||||
* - 'temporary' - If true, then a temporary table will be created
|
||||
* @return The table name generated. This may be different from the table name, for example with temporary tables.
|
||||
*/
|
||||
public function createTable($tableName, $fields = null, $indexes = null, $options = null, $advancedOptions = null) {
|
||||
$fieldSchemas = $indexSchemas = "";
|
||||
if($fields) foreach($fields as $k => $v) $fieldSchemas .= "\"$k\" $v,\n";
|
||||
|
||||
// Temporary tables start with "#" in MSSQL-land
|
||||
if(!empty($options['temporary'])) {
|
||||
// Randomize the temp table name to avoid conflicts in the tempdb table which derived databases share
|
||||
$tableName = "#$tableName" . '-' . rand(1000000, 9999999);
|
||||
}
|
||||
|
||||
$this->query("CREATE TABLE \"$tableName\" (
|
||||
$fieldSchemas
|
||||
primary key (\"ID\")
|
||||
);");
|
||||
|
||||
//we need to generate indexes like this: CREATE INDEX IX_vault_to_export ON vault (to_export);
|
||||
//This needs to be done AFTER the table creation, so we can set up the fulltext indexes correctly
|
||||
if($indexes) foreach($indexes as $k => $v) {
|
||||
$indexSchemas .= $this->getIndexSqlDefinition($tableName, $k, $v) . "\n";
|
||||
}
|
||||
|
||||
if($indexSchemas) $this->query($indexSchemas);
|
||||
|
||||
return $tableName;
|
||||
}
|
||||
|
||||
/**
|
||||
* Alter a table's schema.
|
||||
* @param $table The name of the table to alter
|
||||
* @param $newFields New fields, a map of field name => field schema
|
||||
* @param $newIndexes New indexes, a map of index name => index type
|
||||
* @param $alteredFields Updated fields, a map of field name => field schema
|
||||
* @param $alteredIndexes Updated indexes, a map of index name => index type
|
||||
*/
|
||||
public function alterTable($tableName, $newFields = null, $newIndexes = null, $alteredFields = null, $alteredIndexes = null, $alteredOptions=null, $advancedOptions=null) {
|
||||
$alterList = array();
|
||||
|
||||
// drop any fulltext indexes that exist on the table before altering the structure
|
||||
if($this->fullTextIndexExists($tableName)) {
|
||||
$alterList[] = "\nDROP FULLTEXT INDEX ON \"$tableName\";";
|
||||
}
|
||||
|
||||
if($newFields) foreach($newFields as $k => $v) $alterList[] = "ALTER TABLE \"$tableName\" ADD \"$k\" $v";
|
||||
|
||||
if($alteredFields) foreach($alteredFields as $k => $v) $alterList[] = $this->alterTableAlterColumn($tableName, $k, $v);
|
||||
if($alteredIndexes) foreach($alteredIndexes as $k => $v) $alterList[] = $this->getIndexSqlDefinition($tableName, $k, $v);
|
||||
if($newIndexes) foreach($newIndexes as $k => $v) $alterList[] = $this->getIndexSqlDefinition($tableName, $k, $v);
|
||||
|
||||
if($alterList) {
|
||||
foreach($alterList as $alteration) {
|
||||
if($alteration != '') {
|
||||
$this->query($alteration);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Given the table and column name, retrieve the constraint name for that column
|
||||
* in the table.
|
||||
*
|
||||
* @param string $tableName Table name column resides in
|
||||
* @param string $columnName Column name the constraint is for
|
||||
* @return string|null
|
||||
*/
|
||||
public function getConstraintName($tableName, $columnName) {
|
||||
return $this->preparedQuery("
|
||||
SELECT CONSTRAINT_NAME
|
||||
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
|
||||
WHERE TABLE_NAME = ? AND COLUMN_NAME = ?",
|
||||
array($tableName, $columnName)
|
||||
)->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Given a table and column name, return a check constraint clause for that column in
|
||||
* the table.
|
||||
*
|
||||
* This is an expensive query, so it is cached per-request and stored by table. The initial
|
||||
* call for a table that has not been cached will query all columns and store that
|
||||
* so subsequent calls are fast.
|
||||
*
|
||||
* @param string $tableName Table name column resides in
|
||||
* @param string $columnName Column name the constraint is for
|
||||
* @return string The check string
|
||||
*/
|
||||
public function getConstraintCheckClause($tableName, $columnName) {
|
||||
// Check already processed table columns
|
||||
if(isset(self::$cached_checks[$tableName])) {
|
||||
if(!isset(self::$cached_checks[$tableName][$columnName])) {
|
||||
return null;
|
||||
}
|
||||
return self::$cached_checks[$tableName][$columnName];
|
||||
}
|
||||
|
||||
// Regenerate cehcks for this table
|
||||
$checks = array();
|
||||
foreach($this->preparedQuery("
|
||||
SELECT CAST(CHECK_CLAUSE AS TEXT) AS CHECK_CLAUSE, COLUMN_NAME
|
||||
FROM INFORMATION_SCHEMA.CHECK_CONSTRAINTS AS CC
|
||||
INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CCU ON CCU.CONSTRAINT_NAME = CC.CONSTRAINT_NAME
|
||||
WHERE TABLE_NAME = ?",
|
||||
array($tableName)
|
||||
) as $record) {
|
||||
$checks[$record['COLUMN_NAME']] = $record['CHECK_CLAUSE'];
|
||||
}
|
||||
self::$cached_checks[$tableName] = $checks;
|
||||
|
||||
// Return via cached records
|
||||
return $this->getConstraintCheckClause($tableName, $columnName);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the name of the default constraint applied to $tableName.$colName.
|
||||
* Will return null if no such constraint exists
|
||||
*
|
||||
* @param string $tableName Name of the table
|
||||
* @param string $colName Name of the column
|
||||
* @return string|null
|
||||
*/
|
||||
protected function defaultConstraintName($tableName, $colName) {
|
||||
return $this->preparedQuery("
|
||||
SELECT s.name --default name
|
||||
FROM sys.sysobjects s
|
||||
join sys.syscolumns c ON s.parent_obj = c.id
|
||||
WHERE s.xtype = 'd'
|
||||
and c.cdefault = s.id
|
||||
and parent_obj = OBJECT_ID(?)
|
||||
and c.name = ?",
|
||||
array($tableName, $colName)
|
||||
)->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Get enum values from a constraint check clause.
|
||||
*
|
||||
* @param string $clause Check clause to parse values from
|
||||
* @return array Enum values
|
||||
*/
|
||||
protected function enumValuesFromCheckClause($clause) {
|
||||
$segments = preg_split('/ +OR *\[/i', $clause);
|
||||
$constraints = array();
|
||||
foreach($segments as $segment) {
|
||||
$bits = preg_split('/ *= */', $segment);
|
||||
for($i = 1; $i < sizeof($bits); $i += 2) {
|
||||
array_unshift($constraints, substr(rtrim($bits[$i], ')'), 1, -1));
|
||||
}
|
||||
}
|
||||
return $constraints;
|
||||
}
|
||||
|
||||
/*
|
||||
* Creates an ALTER expression for a column in MS SQL
|
||||
*
|
||||
* @param string $tableName Name of the table to be altered
|
||||
* @param string $colName Name of the column to be altered
|
||||
* @param string $colSpec String which contains conditions for a column
|
||||
* @return string
|
||||
*/
|
||||
protected function alterTableAlterColumn($tableName, $colName, $colSpec){
|
||||
|
||||
// First, we split the column specifications into parts
|
||||
// TODO: this returns an empty array for the following string: int(11) not null auto_increment
|
||||
// on second thoughts, why is an auto_increment field being passed through?
|
||||
$pattern = '/^(?<definition>[\w()]+)\s?(?<null>(?:not\s)?null)?\s?(?<default>default\s[\w\']+)?\s?(?<check>check\s?[\w()\'",\s]+)?$/i';
|
||||
$matches = array();
|
||||
preg_match($pattern, $colSpec, $matches);
|
||||
|
||||
// drop the index if it exists
|
||||
$alterQueries = array();
|
||||
|
||||
// drop *ALL* indexes on a table before proceeding
|
||||
// this won't drop primary keys, though
|
||||
$indexes = $this->indexNames($tableName);
|
||||
foreach($indexes as $indexName) {
|
||||
$alterQueries[] = "DROP INDEX \"$indexName\" ON \"$tableName\";";
|
||||
}
|
||||
|
||||
$prefix = "ALTER TABLE \"$tableName\" ";
|
||||
|
||||
// Remove the old default prior to adjusting the column.
|
||||
if($defaultConstraintName = $this->defaultConstraintName($tableName, $colName)) {
|
||||
$alterQueries[] = "$prefix DROP CONSTRAINT \"$defaultConstraintName\";";
|
||||
}
|
||||
|
||||
if(isset($matches['definition'])) {
|
||||
//We will prevent any changes being made to the ID column. Primary key indexes will have a fit if we do anything here.
|
||||
if($colName != 'ID'){
|
||||
|
||||
// SET null / not null
|
||||
$nullFragment = empty($matches['null']) ? '' : " {$matches['null']}";
|
||||
$alterQueries[] = "$prefix ALTER COLUMN \"$colName\" {$matches['definition']}$nullFragment;";
|
||||
|
||||
// Add a default back
|
||||
if(!empty($matches['default'])) {
|
||||
$alterQueries[] = "$prefix ADD {$matches['default']} FOR \"$colName\";";
|
||||
}
|
||||
|
||||
// SET check constraint (The constraint HAS to be dropped)
|
||||
if(!empty($matches['check'])) {
|
||||
$constraint = $this->getConstraintName($tableName, $colName);
|
||||
if($constraint) {
|
||||
$alterQueries[] = "$prefix DROP CONSTRAINT {$constraint};";
|
||||
}
|
||||
|
||||
//NOTE: 'with nocheck' seems to solve a few problems I've been having for modifying existing tables.
|
||||
$alterQueries[] = "$prefix WITH NOCHECK ADD CONSTRAINT \"{$tableName}_{$colName}_check\" {$matches['check']};";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return implode("\n", $alterQueries);
|
||||
}
|
||||
|
||||
public function renameTable($oldTableName, $newTableName) {
|
||||
$this->query("EXEC sp_rename \"$oldTableName\", \"$newTableName\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks a table's integrity and repairs it if necessary.
|
||||
* NOTE: MSSQL does not appear to support any vacuum or optimise commands
|
||||
*
|
||||
* @var string $tableName The name of the table.
|
||||
* @return boolean Return true if the table has integrity after the method is complete.
|
||||
*/
|
||||
public function checkAndRepairTable($tableName) {
|
||||
return true;
|
||||
}
|
||||
|
||||
public function createField($tableName, $fieldName, $fieldSpec) {
|
||||
$this->query("ALTER TABLE \"$tableName\" ADD \"$fieldName\" $fieldSpec");
|
||||
}
|
||||
|
||||
/**
|
||||
* Change the database type of the given field.
|
||||
* @param string $tableName The name of the tbale the field is in.
|
||||
* @param string $fieldName The name of the field to change.
|
||||
* @param string $fieldSpec The new field specification
|
||||
*/
|
||||
public function alterField($tableName, $fieldName, $fieldSpec) {
|
||||
$this->query("ALTER TABLE \"$tableName\" CHANGE \"$fieldName\" \"$fieldName\" $fieldSpec");
|
||||
}
|
||||
|
||||
public function renameField($tableName, $oldName, $newName) {
|
||||
$this->query("EXEC sp_rename @objname = '$tableName.$oldName', @newname = '$newName', @objtype = 'COLUMN'");
|
||||
}
|
||||
|
||||
public function fieldList($table) {
|
||||
//This gets us more information than we need, but I've included it all for the moment....
|
||||
$fieldRecords = $this->preparedQuery("SELECT ordinal_position, column_name, data_type, column_default,
|
||||
is_nullable, character_maximum_length, numeric_precision, numeric_scale, collation_name
|
||||
FROM information_schema.columns WHERE table_name = ?
|
||||
ORDER BY ordinal_position;",
|
||||
array($table)
|
||||
);
|
||||
|
||||
// Cache the records from the query - otherwise a lack of multiple active result sets
|
||||
// will cause subsequent queries to fail in this method
|
||||
$fields = array();
|
||||
$output = array();
|
||||
foreach($fieldRecords as $record) {
|
||||
$fields[] = $record;
|
||||
}
|
||||
|
||||
foreach($fields as $field) {
|
||||
// Update the data_type field to be a complete column definition string for use by
|
||||
// SS_Database::requireField()
|
||||
switch($field['data_type']){
|
||||
case 'bigint':
|
||||
case 'numeric':
|
||||
case 'float':
|
||||
case 'bit':
|
||||
if($field['data_type'] != 'bigint' && $sizeSuffix = $field['numeric_precision']) {
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default $default";
|
||||
}
|
||||
break;
|
||||
|
||||
case 'decimal':
|
||||
if($field['numeric_precision']) {
|
||||
$sizeSuffix = $field['numeric_precision'] . ',' . $field['numeric_scale'];
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default $default";
|
||||
}
|
||||
break;
|
||||
|
||||
case 'nvarchar':
|
||||
case 'varchar':
|
||||
//Check to see if there's a constraint attached to this column:
|
||||
$clause = $this->getConstraintCheckClause($table, $field['column_name']);
|
||||
if($clause) {
|
||||
$constraints = $this->enumValuesFromCheckClause($clause);
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] = $this->enum(array(
|
||||
'default' => $default,
|
||||
'name' => $field['column_name'],
|
||||
'enums' => $constraints,
|
||||
'table' => $table
|
||||
));
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
$sizeSuffix = $field['character_maximum_length'];
|
||||
if($sizeSuffix == '-1') $sizeSuffix = 'max';
|
||||
if($sizeSuffix) {
|
||||
$field['data_type'] .= "($sizeSuffix)";
|
||||
}
|
||||
|
||||
if($field['is_nullable'] == 'YES') {
|
||||
$field['data_type'] .= ' null';
|
||||
} else {
|
||||
$field['data_type'] .= ' not null';
|
||||
}
|
||||
if($field['column_default']) {
|
||||
$default=substr($field['column_default'], 2, -2);
|
||||
$field['data_type'] .= " default '$default'";
|
||||
}
|
||||
}
|
||||
$output[$field['column_name']] = $field;
|
||||
|
||||
}
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create an index on a table.
|
||||
* @param string $tableName The name of the table.
|
||||
* @param string $indexName The name of the index.
|
||||
* @param string $indexSpec The specification of the index, see SS_Database::requireIndex() for more details.
|
||||
*/
|
||||
public function createIndex($tableName, $indexName, $indexSpec) {
|
||||
$this->query($this->getIndexSqlDefinition($tableName, $indexName, $indexSpec));
|
||||
}
|
||||
|
||||
/**
|
||||
* Return SQL for dropping and recreating an index
|
||||
*
|
||||
* @param string $tableName Name of table to create this index against
|
||||
* @param string $indexName Name of this index
|
||||
* @param array|string $indexSpec Index specification, either as a raw string
|
||||
* or parsed array form
|
||||
* @return string The SQL required to generate this index
|
||||
*/
|
||||
protected function getIndexSqlDefinition($tableName, $indexName, $indexSpec) {
|
||||
|
||||
// Determine index name
|
||||
$index = $this->buildMSSQLIndexName($tableName, $indexName);
|
||||
|
||||
// Consolidate/Cleanup spec into array format
|
||||
$indexSpec = $this->parseIndexSpec($indexName, $indexSpec);
|
||||
|
||||
$drop = "IF EXISTS (SELECT name FROM sys.indexes WHERE name = '$index') DROP INDEX $index ON \"$tableName\";";
|
||||
|
||||
// create a type-specific index
|
||||
if($indexSpec['type'] == 'fulltext' && $this->database->fullTextEnabled()) {
|
||||
// enable fulltext on this table
|
||||
$this->createFullTextCatalog();
|
||||
$primary_key = $this->getPrimaryKey($tableName);
|
||||
|
||||
if($primary_key) {
|
||||
return "$drop CREATE FULLTEXT INDEX ON \"$tableName\" ({$indexSpec['value']})"
|
||||
. "KEY INDEX $primary_key WITH CHANGE_TRACKING AUTO;";
|
||||
}
|
||||
}
|
||||
|
||||
if($indexSpec['type'] == 'unique') {
|
||||
return "$drop CREATE UNIQUE INDEX $index ON \"$tableName\" ({$indexSpec['value']});";
|
||||
}
|
||||
|
||||
return "$drop CREATE INDEX $index ON \"$tableName\" ({$indexSpec['value']});";
|
||||
}
|
||||
|
||||
public function alterIndex($tableName, $indexName, $indexSpec) {
|
||||
$this->createIndex($tableName, $indexName, $indexSpec);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the list of indexes in a table.
|
||||
* @param string $table The table name.
|
||||
* @return array
|
||||
*/
|
||||
public function indexList($table) {
|
||||
$indexes = $this->query("EXEC sp_helpindex '$table';");
|
||||
$indexList = array();
|
||||
|
||||
// Enumerate all basic indexes
|
||||
foreach($indexes as $index) {
|
||||
if(strpos($index['index_description'], 'unique') !== false) {
|
||||
$indexType = 'unique ';
|
||||
} else {
|
||||
$indexType = 'index ';
|
||||
}
|
||||
|
||||
// Extract name from index
|
||||
$baseIndexName = $this->buildMSSQLIndexName($table, '');
|
||||
$indexName = substr($index['index_name'], strlen($baseIndexName));
|
||||
|
||||
// Extract columns
|
||||
$columns = $this->quoteColumnSpecString($index['index_keys']);
|
||||
$indexList[$indexName] = $this->parseIndexSpec($indexName, array(
|
||||
'name' => $indexName,
|
||||
'value' => $columns,
|
||||
'type' => $indexType
|
||||
));
|
||||
}
|
||||
|
||||
// Now we need to check to see if we have any fulltext indexes attached to this table:
|
||||
if($this->database->fullTextEnabled()) {
|
||||
$result = $this->query('EXEC sp_help_fulltext_columns;');
|
||||
|
||||
// Extract columns from this fulltext definition
|
||||
$columns = array();
|
||||
foreach($result as $row) {
|
||||
if($row['TABLE_NAME'] == $table) {
|
||||
$columns[] = $row['FULLTEXT_COLUMN_NAME'];
|
||||
}
|
||||
}
|
||||
|
||||
if(!empty($columns)) {
|
||||
$indexList['SearchFields'] = $this->parseIndexSpec('SearchFields', array(
|
||||
'name' => 'SearchFields',
|
||||
'value' => $this->implodeColumnList($columns),
|
||||
'type' => 'fulltext'
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
return $indexList;
|
||||
}
|
||||
|
||||
/**
|
||||
* For a given table name, get all the internal index names,
|
||||
* except for those that are primary keys and fulltext indexes.
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
public function indexNames($tableName) {
|
||||
return $this->preparedQuery('
|
||||
SELECT ind.name FROM sys.indexes ind
|
||||
INNER JOIN sys.tables t ON ind.object_id = t.object_id
|
||||
WHERE is_primary_key = 0 AND t.name = ?',
|
||||
array($tableName)
|
||||
)->column();
|
||||
}
|
||||
|
||||
public function tableList() {
|
||||
$tables = array();
|
||||
foreach($this->query("EXEC sp_tables @table_owner = 'dbo';") as $record) {
|
||||
$tables[strtolower($record['TABLE_NAME'])] = $record['TABLE_NAME'];
|
||||
}
|
||||
return $tables;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a boolean type-formatted string
|
||||
* We use 'bit' so that we can do numeric-based comparisons
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function boolean($values) {
|
||||
$default = ($values['default']) ? '1' : '0';
|
||||
return 'bit not null default ' . $default;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a date type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function date($values) {
|
||||
return 'date null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a decimal type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function decimal($values) {
|
||||
// Avoid empty strings being put in the db
|
||||
if($values['precision'] == '') {
|
||||
$precision = 1;
|
||||
} else {
|
||||
$precision = $values['precision'];
|
||||
}
|
||||
|
||||
$defaultValue = '0';
|
||||
if(isset($values['default']) && is_numeric($values['default'])) {
|
||||
$defaultValue = $values['default'];
|
||||
}
|
||||
|
||||
return "decimal($precision) not null default $defaultValue";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a enum type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function enum($values) {
|
||||
// Enums are a bit different. We'll be creating a varchar(255) with a constraint of all the
|
||||
// usual enum options.
|
||||
// NOTE: In this one instance, we are including the table name in the values array
|
||||
|
||||
$maxLength = max(array_map('strlen', $values['enums']));
|
||||
|
||||
return "varchar($maxLength) not null default '" . $values['default']
|
||||
. "' check(\"" . $values['name'] . "\" in ('" . implode("','", $values['enums'])
|
||||
. "'))";
|
||||
}
|
||||
|
||||
/**
|
||||
* @todo Make this work like {@link MySQLDatabase::set()}
|
||||
*/
|
||||
public function set($values) {
|
||||
return $this->enum($values);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a float type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function float($values) {
|
||||
return 'float(53) not null default ' . $values['default'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a int type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function int($values) {
|
||||
//We'll be using an 8 digit precision to keep it in line with the serial8 datatype for ID columns
|
||||
return 'numeric(8) not null default ' . (int) $values['default'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a datetime type-formatted string
|
||||
* For MS SQL, we simply return the word 'timestamp', no other parameters are necessary
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function ss_datetime($values) {
|
||||
return 'datetime null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a text type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function text($values) {
|
||||
$collation = MSSQLDatabase::get_collation();
|
||||
$collationSQL = $collation ? " COLLATE $collation" : "";
|
||||
return "nvarchar(max)$collationSQL null";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a time type-formatted string.
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function time($values){
|
||||
return 'time null';
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a varchar type-formatted string
|
||||
*
|
||||
* @params array $values Contains a tokenised list of info about this data type
|
||||
* @return string
|
||||
*/
|
||||
public function varchar($values) {
|
||||
$collation = MSSQLDatabase::get_collation();
|
||||
$collationSQL = $collation ? " COLLATE $collation" : "";
|
||||
return "nvarchar(" . $values['precision'] . ")$collationSQL null";
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a 4 digit numeric type.
|
||||
* @return string
|
||||
*/
|
||||
public function year($values) {
|
||||
return 'numeric(4)';
|
||||
}
|
||||
|
||||
/**
|
||||
* This returns the column which is the primary key for each table
|
||||
* In Postgres, it is a SERIAL8, which is the equivalent of an auto_increment
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
function IdColumn($asDbValue = false, $hasAutoIncPK = true){
|
||||
if($asDbValue) {
|
||||
return 'bigint not null';
|
||||
} else if($hasAutoIncPK) {
|
||||
return 'bigint identity(1,1)';
|
||||
} else {
|
||||
return 'bigint not null';
|
||||
}
|
||||
}
|
||||
|
||||
function hasTable($tableName) {
|
||||
return (bool)$this->preparedQuery(
|
||||
"SELECT table_name FROM information_schema.tables WHERE table_name = ?",
|
||||
array($tableName)
|
||||
)->value();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the values of the given enum field
|
||||
* NOTE: Experimental; introduced for db-abstraction and may changed before 2.4 is released.
|
||||
*/
|
||||
public function enumValuesForField($tableName, $fieldName) {
|
||||
$classes = array();
|
||||
|
||||
// Get the enum of all page types from the SiteTree table
|
||||
$clause = $this->getConstraintCheckClause($tableName, $fieldName);
|
||||
if($clause) {
|
||||
$classes = $this->enumValuesFromCheckClause($clause);
|
||||
}
|
||||
|
||||
return $classes;
|
||||
}
|
||||
|
||||
/**
|
||||
* This is a lookup table for data types.
|
||||
*
|
||||
* For instance, MSSQL uses 'BIGINT', while MySQL uses 'UNSIGNED'
|
||||
* and PostgreSQL uses 'INT'.
|
||||
*/
|
||||
function dbDataType($type){
|
||||
$values = array(
|
||||
'unsigned integer'=>'BIGINT'
|
||||
);
|
||||
if(isset($values[$type])) {
|
||||
return $values[$type];
|
||||
} else {
|
||||
return '';
|
||||
}
|
||||
}
|
||||
|
||||
protected function indexKey($table, $index, $spec) {
|
||||
return $index;
|
||||
}
|
||||
}
|
||||
195
code/SQLServerConnector.php
Normal file
195
code/SQLServerConnector.php
Normal file
@ -0,0 +1,195 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* Database connector driver for sqlsrv_ library
|
||||
*
|
||||
* @package mssql
|
||||
*/
|
||||
class SQLServerConnector extends DBConnector {
|
||||
|
||||
/**
|
||||
* Connection to the DBMS.
|
||||
*
|
||||
* @var resource
|
||||
*/
|
||||
protected $dbConn = null;
|
||||
|
||||
/**
|
||||
* Stores the affected rows of the last query.
|
||||
* Used by sqlsrv functions only, as sqlsrv_rows_affected
|
||||
* accepts a result instead of a database handle.
|
||||
*
|
||||
* @var integer
|
||||
*/
|
||||
protected $lastAffectedRows;
|
||||
|
||||
/**
|
||||
* Name of the currently selected database
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
protected $selectedDatabase = null;
|
||||
|
||||
public function connect($parameters, $selectDB = false) {
|
||||
// Disable default warnings as errors behaviour for sqlsrv to keep it in line with mssql functions
|
||||
if(ini_get('sqlsrv.WarningsReturnAsErrors')) {
|
||||
ini_set('sqlsrv.WarningsReturnAsErrors', 'Off');
|
||||
}
|
||||
|
||||
$charset = isset($parameters['charset']) ? $parameters : 'UTF-8';
|
||||
$multiResultSets = isset($parameters['multipleactiveresultsets'])
|
||||
? $parameters['multipleactiveresultsets']
|
||||
: true;
|
||||
$options = array(
|
||||
'CharacterSet' => $charset,
|
||||
'MultipleActiveResultSets' => $multiResultSets
|
||||
);
|
||||
|
||||
if( !(defined('MSSQL_USE_WINDOWS_AUTHENTICATION') && MSSQL_USE_WINDOWS_AUTHENTICATION == true)
|
||||
&& empty($parameters['windowsauthentication'])
|
||||
) {
|
||||
$options['UID'] = $parameters['username'];
|
||||
$options['PWD'] = $parameters['password'];
|
||||
}
|
||||
|
||||
// Required by MS Azure database
|
||||
if($selectDB && !empty($parameters['database'])) {
|
||||
$options['Database'] = $parameters['database'];
|
||||
}
|
||||
|
||||
$this->dbConn = sqlsrv_connect($parameters['server'], $options);
|
||||
|
||||
if(empty($this->dbConn)) {
|
||||
$this->databaseError("Couldn't connect to SQL Server database");
|
||||
} elseif($selectDB && !empty($parameters['database'])) {
|
||||
// Check selected database (Azure)
|
||||
$this->selectedDatabase = $parameters['database'];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Start transaction. READ ONLY not supported.
|
||||
*/
|
||||
public function transactionStart(){
|
||||
$result = sqlsrv_begin_transaction($this->dbConn);
|
||||
if (!$result) {
|
||||
$this->databaseError("Couldn't start the transaction.");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Commit everything inside this transaction so far
|
||||
*/
|
||||
public function transactionEnd() {
|
||||
$result = sqlsrv_commit($this->dbConn);
|
||||
if (!$result) {
|
||||
$this->databaseError("Couldn't commit the transaction.");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Rollback or revert to a savepoint if your queries encounter problems
|
||||
* If you encounter a problem at any point during a transaction, you may
|
||||
* need to rollback that particular query, or return to a savepoint
|
||||
*/
|
||||
public function transactionRollback(){
|
||||
$result = sqlsrv_rollback($this->dbConn);
|
||||
if (!$result) {
|
||||
$this->databaseError("Couldn't rollback the transaction.");
|
||||
}
|
||||
}
|
||||
|
||||
public function affectedRows() {
|
||||
return $this->lastAffectedRows;
|
||||
}
|
||||
|
||||
public function getLastError() {
|
||||
$errorMessages = array();
|
||||
$errors = sqlsrv_errors();
|
||||
if($errors) foreach($errors as $info) {
|
||||
$errorMessages[] = implode(', ', array($info['SQLSTATE'], $info['code'], $info['message']));
|
||||
}
|
||||
return implode('; ', $errorMessages);
|
||||
}
|
||||
|
||||
public function isActive() {
|
||||
return $this->dbConn && $this->selectedDatabase;
|
||||
}
|
||||
|
||||
public function preparedQuery($sql, $parameters, $errorLevel = E_USER_ERROR) {
|
||||
// Check if we should only preview this query
|
||||
if ($this->previewWrite($sql)) return;
|
||||
|
||||
$parsedParameters = $this->parameterValues($parameters);
|
||||
|
||||
// Benchmark query
|
||||
$dbConn = $this->dbConn;
|
||||
$handle = $this->benchmarkQuery($sql, function($sql) use($dbConn, $parsedParameters) {
|
||||
if(empty($parsedParameters)) {
|
||||
return sqlsrv_query($dbConn, $sql);
|
||||
} else {
|
||||
return sqlsrv_query($dbConn, $sql, $parsedParameters);
|
||||
}
|
||||
});
|
||||
|
||||
if($handle) {
|
||||
$this->lastAffectedRows = sqlsrv_rows_affected($handle);
|
||||
} else {
|
||||
$this->databaseError($this->getLastError(), $errorLevel, $sql, $parsedParameters);
|
||||
return null;
|
||||
}
|
||||
|
||||
return new SQLServerQuery($this, $handle);
|
||||
}
|
||||
|
||||
public function query($sql, $errorLevel = E_USER_ERROR) {
|
||||
return $this->preparedQuery($sql, array(), $errorLevel);
|
||||
}
|
||||
|
||||
public function selectDatabase($name) {
|
||||
$this->query("USE \"$name\"");
|
||||
$this->selectedDatabase = $name;
|
||||
return true;
|
||||
}
|
||||
|
||||
public function __destruct() {
|
||||
if(is_resource($this->dbConn)) {
|
||||
sqlsrv_close($this->dbConn);
|
||||
}
|
||||
}
|
||||
|
||||
public function getVersion() {
|
||||
// @todo - use sqlsrv_server_info?
|
||||
return trim($this->query("SELECT CONVERT(char(15), SERVERPROPERTY('ProductVersion'))")->value());
|
||||
}
|
||||
|
||||
public function getGeneratedID($table) {
|
||||
return $this->query("SELECT IDENT_CURRENT('$table')")->value();
|
||||
}
|
||||
|
||||
public function getSelectedDatabase() {
|
||||
return $this->selectedDatabase;
|
||||
}
|
||||
|
||||
public function unloadDatabase() {
|
||||
$this->selectDatabase('Master');
|
||||
$this->selectedDatabase = null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Quotes a string, including the "N" prefix so unicode
|
||||
* strings are saved to the database correctly.
|
||||
*
|
||||
* @param string $string String to be encoded
|
||||
* @return string Processed string ready for DB
|
||||
*/
|
||||
public function quoteString($value) {
|
||||
return "N'" . $this->escapeString($value) . "'";
|
||||
}
|
||||
|
||||
public function escapeString($value) {
|
||||
$value = str_replace("'", "''", $value);
|
||||
$value = str_replace("\0", "[NULL]", $value);
|
||||
return $value;
|
||||
}
|
||||
}
|
||||
76
code/SQLServerQuery.php
Normal file
76
code/SQLServerQuery.php
Normal file
@ -0,0 +1,76 @@
|
||||
<?php
|
||||
|
||||
/**
|
||||
* A result-set from a MSSQL database.
|
||||
*
|
||||
* @package mssql
|
||||
*/
|
||||
class SQLServerQuery extends SS_Query {
|
||||
|
||||
/**
|
||||
* The SQLServerConnector object that created this result set.
|
||||
*
|
||||
* @var SQLServerConnector
|
||||
*/
|
||||
private $connector;
|
||||
|
||||
/**
|
||||
* The internal MSSQL handle that points to the result set.
|
||||
*
|
||||
* @var resource
|
||||
*/
|
||||
private $handle;
|
||||
|
||||
/**
|
||||
* Hook the result-set given into a Query class, suitable for use by sapphire.
|
||||
* @param SQLServerConnector $connector The database object that created this query.
|
||||
* @param resource $handle the internal mssql handle that is points to the resultset.
|
||||
*/
|
||||
public function __construct(SQLServerConnector $connector, $handle) {
|
||||
$this->connector = $connector;
|
||||
$this->handle = $handle;
|
||||
}
|
||||
|
||||
public function __destruct() {
|
||||
if(is_resource($this->handle)) {
|
||||
sqlsrv_free_stmt($this->handle);
|
||||
}
|
||||
}
|
||||
|
||||
public function seek($row) {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
user_error('MSSQLQuery::seek() not supported in sqlsrv', E_USER_WARNING);
|
||||
}
|
||||
|
||||
public function numRecords() {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
// WARNING: This will only work if the cursor type is scrollable!
|
||||
if(function_exists('sqlsrv_num_rows')) {
|
||||
return sqlsrv_num_rows($this->handle);
|
||||
} else {
|
||||
user_error('MSSQLQuery::numRecords() not supported in this version of sqlsrv', E_USER_WARNING);
|
||||
}
|
||||
}
|
||||
|
||||
public function nextRecord() {
|
||||
if(!is_resource($this->handle)) return false;
|
||||
|
||||
if($data = sqlsrv_fetch_array($this->handle, SQLSRV_FETCH_ASSOC)) {
|
||||
// special case for sqlsrv - date values are DateTime coming out of the sqlsrv drivers,
|
||||
// so we convert to the usual Y-m-d H:i:s value!
|
||||
foreach($data as $name => $value) {
|
||||
if($value instanceof DateTime) $data[$name] = $value->format('Y-m-d H:i:s');
|
||||
}
|
||||
return $data;
|
||||
} else {
|
||||
// Free the handle if there are no more results - sqlsrv crashes if there are too many handles
|
||||
sqlsrv_free_stmt($this->handle);
|
||||
$this->handle = null;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user