[2.0] DDC-156 - Allow to pass custom platforms

lib/Doctrine/DBAL/Connection.php

@@ -22,7 +22,8 @@
 namespace Doctrine\DBAL;
 
 use Doctrine\Common\EventManager,
-    Doctrine\Common\DoctrineException;
+    Doctrine\Common\DoctrineException,
+    Doctrine\DBAL\DBALException;
 
 /**
  * A wrapper around a Doctrine\DBAL\Driver\Connection that adds features like
@@ -178,7 +179,13 @@ class Connection
 
         $this->_config = $config;
         $this->_eventManager = $eventManager;
-        $this->_platform = $driver->getDatabasePlatform();
+        if (!isset($params['platform'])) {
+            $this->_platform = $driver->getDatabasePlatform();
+        } else if($params['platform'] instanceof \Doctrine\DBAL\Platforms\AbstractPlatform) {
+            $this->_platform = $params['platform'];
+        } else {
+            throw DBALException::invalidPlatformSpecified();
+        }
         $this->_transactionIsolationLevel = $this->_platform->getDefaultTransactionIsolationLevel();
     }
 

lib/Doctrine/DBAL/DBALException.php

@@ -8,4 +8,9 @@ class DBALException extends \Exception
     {
         return new self("Operation '$method' is not supported.");
     }
+
+    public static function invalidPlatformSpecified()
+    {
+        return new self("Invalid 'platform' option specified, need to give an instance of \Doctrine\DBAL\Platforms\AbstractPlatform.");
+    }
 }

tests/Doctrine/Tests/DBAL/DriverManagerTest.php

@@ -49,4 +49,16 @@ class DriverManagerTest extends \Doctrine\Tests\DbalTestCase
     {
         $conn = \Doctrine\DBAL\DriverManager::getConnection(array('driver' => 'invalid_driver'));
     }
+
+    public function testCustomPlatform()
+    {
+        $mockPlatform = new \Doctrine\Tests\DBAL\Mocks\MockPlatform();
+        $options = array(
+            'pdo' => new \PDO('sqlite::memory:'),
+            'platform' => $mockPlatform
+        );
+
+        $conn = \Doctrine\DBAL\DriverManager::getConnection($options);
+        $this->assertSame($mockPlatform, $conn->getDatabasePlatform());
+    }
 }