From eed84854506e46f96a866a1a396d2737b0488cd1 Mon Sep 17 00:00:00 2001
From: Ansari <ziyaurrahman@krishtechnolabs.com>
Date: Wed, 28 Nov 2018 19:34:05 +0530
Subject: [PATCH 1/3] patch-19344 : Fixed Sample Link Issue in Downloadable
 product #19344

---
 .../Product/Initialization/Helper/Plugin/Downloadable.php  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php b/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
index f56b219f72db2..a283891afc406 100644
--- a/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
+++ b/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
@@ -11,6 +11,9 @@
 use Magento\Downloadable\Api\Data\SampleInterfaceFactory;
 use Magento\Downloadable\Api\Data\LinkInterfaceFactory;
 
+/**
+ * Class for initialization downloadable info from request.
+ */
 class Downloadable
 {
     /**
@@ -92,6 +95,8 @@ public function afterInitialize(
                     }
                 }
                 $extension->setDownloadableProductLinks($links);
+            } else {
+                $extension->setDownloadableProductLinks([]);
             }
             if (isset($downloadable['sample']) && is_array($downloadable['sample'])) {
                 $samples = [];
@@ -107,6 +112,8 @@ public function afterInitialize(
                     }
                 }
                 $extension->setDownloadableProductSamples($samples);
+            } else {
+                $extension->setDownloadableProductSamples([]);
             }
             $product->setExtensionAttributes($extension);
             if ($product->getLinksPurchasedSeparately()) {

From 29eea73a254e5b50cdbe03baf940bcdad9365945 Mon Sep 17 00:00:00 2001
From: Ansari <ziyaurrahman@krishtechnolabs.com>
Date: Wed, 28 Nov 2018 19:34:05 +0530
Subject: [PATCH 2/3] patch-19344 : Fixed Sample Link Issue in Downloadable
 product #19344

---
 .../Product/Initialization/Helper/Plugin/Downloadable.php  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php b/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
index f56b219f72db2..a283891afc406 100644
--- a/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
+++ b/app/code/Magento/Downloadable/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Downloadable.php
@@ -11,6 +11,9 @@
 use Magento\Downloadable\Api\Data\SampleInterfaceFactory;
 use Magento\Downloadable\Api\Data\LinkInterfaceFactory;
 
+/**
+ * Class for initialization downloadable info from request.
+ */
 class Downloadable
 {
     /**
@@ -92,6 +95,8 @@ public function afterInitialize(
                     }
                 }
                 $extension->setDownloadableProductLinks($links);
+            } else {
+                $extension->setDownloadableProductLinks([]);
             }
             if (isset($downloadable['sample']) && is_array($downloadable['sample'])) {
                 $samples = [];
@@ -107,6 +112,8 @@ public function afterInitialize(
                     }
                 }
                 $extension->setDownloadableProductSamples($samples);
+            } else {
+                $extension->setDownloadableProductSamples([]);
             }
             $product->setExtensionAttributes($extension);
             if ($product->getLinksPurchasedSeparately()) {

From 3b6307bb8b162455e5150189234ca57ac21734a6 Mon Sep 17 00:00:00 2001
From: Yuliya Labudova <Yuliya_Labudova@epam.com>
Date: Tue, 2 Oct 2018 09:47:30 +0300
Subject: [PATCH 3/3] MAGETWO-91711: Unable to delete downloadable product
 links if sample links are not deleted

- Set empty arrays if info doesn't come from request.