add DataTransformerInterface

Author: alexpts

src/PTS/DataTransformer/DataTransformer.php

@@ -4,7 +4,7 @@
 
 use PTS\Hydrator\HydratorService;
 
-class DataTransformer
+class DataTransformer implements DataTransformerInterface
 {
     /** @var HydratorService */
     protected $hydratorService;

src/PTS/DataTransformer/DataTransformerInterface.php

@@ -0,0 +1,13 @@
+<?php
+declare(strict_types=1);
+
+namespace PTS\DataTransformer;
+
+interface DataTransformerInterface
+{
+    public function toDTO($model, string $mapType = 'dto', array $excludeFields = []): array;
+
+    public function toModel(array $data, string $model, string $mapType = 'dto');
+
+    public function fillModel(array $data, $model, string $mapType = 'dto');
+}