SQL Server Transactions / Package Database Config

src/Illuminate/Database/DatabaseManager.php

@@ -77,12 +77,18 @@ public function connection($name = null)
 	 */
 	protected function makeConnection($name)
 	{
-		$config = $this->getConfig($name);
+		// Resolve the package name if there is one.
+		$parts = explode(':',$name);
+		$packageName = $parts[0];
 
-		if (isset($this->extensions[$name]))
+		// If the package has a registered connection resolver,
+		// then use it to return a connection by name
+		if (isset($this->extensions[$packageName]))
 		{
-			return call_user_func($this->extensions[$name], $config);
+			$resolver = call_user_func($this->extensions[$packageName], $this->app, $this->factory);
+			return $resolver->connection($name);
 		}
+		$config = $this->getConfig($name);
 
 		return $this->factory->make($config, $name);
 	}
@@ -180,4 +186,4 @@ public function __call($method, $parameters)
 		return call_user_func_array(array($this->connection(), $method), $parameters);
 	}
 
-}
+}

src/Illuminate/Database/SqlServerConnection.php

@@ -21,5 +21,41 @@ protected function getDefaultSchemaGrammar()
 	{
 		return $this->withTablePrefix(new Schema\Grammars\SqlServerGrammar);
 	}
+
+	/**
+	* Execute a Closure within a transaction.
+	* For MsSql, transactions must be called explicitly using SQL
+	* because the PDO driver does not support beginning a transaction
+	* with dblib as of this writing.
+	*
+	* @param  Closure  $callback
+	* @return mixed
+	*/
+	public function transaction(\Closure $callback)
+	{  
+		$this->pdo->exec("BEGIN TRAN");
+
+		// We'll simply execute the given callback within a try / catch block
+		// and if we catch any exception we can rollback the transaction
+		// so that none of the changes are persisted to the database.
+		try
+		{  
+			$result = $callback($this);
+
+			$this->pdo->exec("COMMIT");
+		}
+
+		// If we catch an exception, we will roll back so nothing gets messed
+		// up in the database. Then we'll re-throw the exception so it can
+		// be handled how the developer sees fit for their applications.
+		catch (\Exception $e)
+		{  
+			$this->pdo->exec("ROLLBACK TRAN");
+
+			throw $e;
+		}
+
+		return $result;
+	}
 
-}
+}