added getDriver method to repositories

Author: nilportugues

README.md

@@ -264,6 +264,7 @@ All the methods listed under SqlWriteRepository, SqlReadRepository and SqlPageRe
 - `public function transactional(callable $transaction)`
 - `public function count(Filter $filter = null)`
 - `public function exists(Identity $id)`
+- `public function getDriver()`
 
 ### Available in SqlReadRepository
 
@@ -272,13 +273,14 @@ All the methods listed under SqlWriteRepository, SqlReadRepository and SqlPageRe
 - `public function findByDistinct(Fields $distinctFields, Filter $filter = null, Sort $sort = null, Fields $fields = null)`
 - `public function count(Filter $filter = null)`
 - `public function exists(Identity $id)`
+- `public function getDriver()`
 
 ### Available in SqlPageRepository
 
 - `public function findAll(Pageable $pageable = null)`
 - `public function count(Filter $filter = null)`
 - `public function exists(Identity $id)`
-
+- `public function getDriver()`
 ---
 
 # Data Operations

tests/Infrastructure/Model/Repository/Sql/SqlRepositoryTest.php

@@ -30,6 +30,11 @@ public function setUp()
         $this->repository = new CustomerRepository($this->pdo, new SqliteCustomerMappingWithCustomId());
     }
 
+    public function testGetDriver()
+    {
+        $this->assertInstanceOf('\Doctrine\DBAL\Query\QueryBuilder',  $this->repository->getDriver());
+    }
+
     public function testAddWhenAutoGeneratedIdTrue()
     {
         $mapping = new SqliteCustomerMappingWithGeneratedId();