MAGETWO-61039: Error when saving an existing product with an image

Author: Sergey Shvets

app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ImagesTest.php

@@ -5,10 +5,10 @@
  */
 namespace Magento\Catalog\Test\Unit\Ui\DataProvider\Product\Form\Modifier;
 
-use Magento\Catalog\Model\Product\Type;
+use Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Images;
 
 /**
- * @method \Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Images getModel
+ * @method Images getModel
  */
 class ImagesTest extends AbstractModifierTest
 {
@@ -17,9 +17,9 @@ class ImagesTest extends AbstractModifierTest
      */
     protected function createModel()
     {
-        return $this->objectManager->getObject(\Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Images::class, [
-            'locator' => $this->locatorMock,
-        ]);
+        $this->productMock->expects($this->once())->method('getId')->willReturn(2051);
+        $actualResult = $this->getModel()->modifyData($this->getSampleData());
+        $this->assertSame('', $actualResult[2051]['product']['media_gallery']['images'][0]['label']);
     }
 
     public function testModifyData()
@@ -30,7 +30,7 @@ public function testModifyData()
     public function testModifyMeta()
     {
         $meta = [
-            \Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Images::CODE_IMAGE_MANAGEMENT_GROUP => [
+            Images::CODE_IMAGE_MANAGEMENT_GROUP => [
                 'children' => [],
                 'label' => __('Images'),
                 'sortOrder' => '20',
@@ -40,4 +40,24 @@ public function testModifyMeta()
 
         $this->assertSame([], $this->getModel()->modifyMeta($meta));
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getSampleData()
+    {
+        return [
+            2051 => [
+                'product' => [
+                    'media_gallery' => [
+                        'images' => [
+                            [
+                                'label' => null
+                            ]
+                        ]
+                    ]
+                ]
+            ]
+        ];
+    }
 }

app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/Images.php

@@ -51,6 +51,20 @@ public function modifyMeta(array $meta)
      */
     public function modifyData(array $data)
     {
+        /** @var \Magento\Catalog\Api\Data\ProductInterface $product */
+        $product = $this->locator->getProduct();
+        $modelId = $product->getId();
+        if (
+            isset($data[$modelId][self::DATA_SOURCE_DEFAULT]['media_gallery']['images'])
+            && is_array($data[$modelId][self::DATA_SOURCE_DEFAULT]['media_gallery']['images'])
+        ) {
+            foreach ($data[$modelId][self::DATA_SOURCE_DEFAULT]['media_gallery']['images'] as $index => $image) {
+                if (!isset($image['label'])) {
+                    $data[$modelId][self::DATA_SOURCE_DEFAULT]['media_gallery']['images'][$index]['label'] = '';
+                }
+            }
+        }
+
         return $data;
     }
 }