Merge pull request #2 from tleliberty/master

Transaction rollback on writer flush error

Author: Baachi

src/PdoWriter.php

@@ -101,6 +101,7 @@ public function flush()
 
             $this->pdo->commit();
         } catch (\PDOException $e) {
+            $this->pdo->rollBack();
             throw new WriterException('Failed to write to database', null, $e);
         }
     }