ACP2E-3770: No information when deleting last option from bundle

Author: o-dubovyk

app/code/Magento/Bundle/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Bundle.php

@@ -13,7 +13,8 @@
 use Magento\Framework\App\RequestInterface;
 
 /**
- * Class Bundle
+ * Plugin class to initialize Bundle product
+ *
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  */
 class Bundle
@@ -106,6 +107,13 @@ public function afterInitialize(
                 $product->setBundleOptionsData($result['bundle_options']);
             }
 
+            if (!$result['bundle_selections']) {
+                $extension = $product->getExtensionAttributes();
+                $extension->setBundleProductOptions([]);
+                $product->setExtensionAttributes($extension);
+                $product->setDropOptions(true);
+            }
+
             $this->processBundleOptionsData($product);
             $this->processDynamicOptionsData($product);
         } elseif (!$compositeReadonly) {
@@ -120,6 +128,8 @@ public function afterInitialize(
     }
 
     /**
+     * Process Bundle Options Data
+     *
      * @param \Magento\Catalog\Model\Product $product
      * @return void
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
@@ -161,10 +171,11 @@ protected function processBundleOptionsData(\Magento\Catalog\Model\Product $prod
         $extension = $product->getExtensionAttributes();
         $extension->setBundleProductOptions($options);
         $product->setExtensionAttributes($extension);
-        return;
     }
 
     /**
+     * Process Dynamic Options Data
+     *
      * @param \Magento\Catalog\Model\Product $product
      * @return void
      */
@@ -198,9 +209,10 @@ protected function processDynamicOptionsData(\Magento\Catalog\Model\Product $pro
     }
 
     /**
+     * Build product link
+     *
      * @param \Magento\Catalog\Model\Product $product
      * @param array $linkData
-     *
      * @return \Magento\Bundle\Api\Data\LinkInterface
      */
     private function buildLink(

app/code/Magento/Bundle/Model/Product/SaveHandler.php

@@ -96,7 +96,10 @@ public function execute($entity, $arguments = [])
         /** @var OptionInterface[] $bundleProductOptions */
         $bundleProductOptions = $entity->getExtensionAttributes()->getBundleProductOptions() ?: [];
         //Only processing bundle products.
-        if ($entity->getTypeId() !== Type::TYPE_CODE || empty($bundleProductOptions)) {
+        if ($entity->getTypeId() !== Type::TYPE_CODE
+            || empty($bundleProductOptions)
+            && !$entity->getDropOptions()
+        ) {
             return $entity;
         }
 

app/code/Magento/Bundle/Test/Unit/Controller/Adminhtml/Product/Initialization/Helper/Plugin/BundleTest.php

@@ -173,6 +173,13 @@ public function testAfterInitializeIfBundleSelectionsAndCustomOptionsExist()
             ->method('setBundleOptionsData')
             ->with($this->bundleOptionsCleaned);
         $this->productMock->expects($this->never())->method('setBundleSelectionsData');
+        $extensionAttribute = $this->getMockBuilder(ProductExtensionInterface::class)
+            ->disableOriginalConstructor()
+            ->addMethods(['setBundleProductOptions'])
+            ->getMockForAbstractClass();
+        $extensionAttribute->expects($this->once())->method('setBundleProductOptions')->with([]);
+        $this->productMock->expects($this->once())->method('getExtensionAttributes')->willReturn($extensionAttribute);
+        $this->productMock->expects($this->once())->method('setExtensionAttributes')->with($extensionAttribute);
         $this->productMock->expects($this->once())->method('getPriceType')->willReturn(2);
         $this->productMock->expects($this->any())->method('getOptionsReadonly')->willReturn(true);
         $this->productMock->expects($this->once())->method('setCanSaveBundleSelections')->with(false);