PDO DBlib Bundle for Symfony2
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This PDO DBLib bundle adds support for Microsoft SQL Server Doctrine 2. Take it with a grain of salt: Many of the Doctrine unit tests fail when using this driver. PHP's PDO_DBLIB driver does not support many of the features within doctrine. There is a patch in the PHP repo to add transaction and lastInsertId support, but this package has some minor work arounds.

This bundle requires the following:

  • pdo_dblib
  • FreeTDS

FreeTDS configuration

DBLib requires FreeTDS. We can't go into detail about configuring FreeTDS, but the connection configured should look something like following:

    host =
    port = 1433
    tds version = 8.0
    client charset = UTF-8
    text size = 20971520

Setting up bundle in Symfony

In your Symfony2 project, modify your config.yml as follows to use the DBlib bundle and the server setup under FreeTDS:

# Doctrine Configuration
        driver_class:   PDODblibBundle\Doctrine\DBAL\Driver\PDODblib\Driver
        host:           mssql_freetds

And in your autoload.php register the new bundle:

    'PDODblib'         => __DIR__ . '/../vendor/bundles',

Putting everything together

Getting everything together wasn't easy. You need to complete the following steps, checking each installation is successful by connecting with the appropriate tools:

  • Install FreeTDS and configure a server connection

    • Verify with ./tsql -S mssql_freetds -U yourusername -P yourpassword
  • Install the PHP DBLib extension -- verify with PHP script containing

    • Verify $pdo = new PDO('dblib:host=mssql_freetds;dbname=yourdb', 'yourusername', 'yourpassword');
  • Install and configure the PDODblibBundle

    • Verify Some kind of SQL against your database

FYI - PHP pdo_dblib patch

You can find a patch for some of the short-comings of pdo_dblib on SVN.


See: Revision 300647 - lastInsertId Revision 300628 - transaction support

FYI - Doctrine Test Suite

Doctrine2's test suite does not allow you to add database drivers on the fly. If you want to test this package, modify Doctrine/DBAL/Driver/DriverManager::$_driverMap:

final class DriverManager
    private static $_driverMap = array(
        /* ... snip ... */
        'pdo_dblib' => 'Doctrine\DBAL\Driver\PDODblib\Driver',

FYI - Generating Entities from database

It's possible, but not easy. Here's what I did:

  • Map any non-compatible column types to string
  • Hack the Doctrine core to skip any tables without primary keys