Added public connection property

Author: maxalmonte14

app/code/Magento/DownloadableImportExport/Helper/Uploader.php

@@ -38,6 +38,11 @@ class Uploader extends \Magento\Framework\App\Helper\AbstractHelper
      */
     protected $parameters = [];
 
+    /**
+     * @var \Magento\Framework\DB\Adapter\AdapterInterface
+     */
+    public $connection;
+
     /**
      * Construct
      *
@@ -62,6 +67,7 @@ public function __construct(
         $this->fileUploader->init();
         $this->fileUploader->setAllowedExtensions($this->getAllowedExtensions());
         $this->fileUploader->removeValidateCallback('catalog_product_image');
+        $this->connection = $resource->getConnection('write');
         $this->mediaDirectory = $filesystem->getDirectoryWrite(DirectoryList::ROOT);
     }