MC-34714: Newsletter Subscribers grid only exports current page records with 'EXCEL XML' option

Author: serhii-balko

app/code/Magento/Backend/Block/Widget/Grid/Export.php

@@ -9,6 +9,8 @@
 use Magento\Framework\App\Filesystem\DirectoryList;
 
 /**
+ * Class Export for exporting grid data as CSV file or MS Excel 2003 XML Document file
+ *
  * @api
  * @deprecated 100.2.0 in favour of UI component implementation
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
@@ -69,6 +71,8 @@ public function __construct(
     }
 
     /**
+     * Internal constructor, that is called from real constructor
+     *
      * @return void
      * @throws \Magento\Framework\Exception\LocalizedException
      */
@@ -242,6 +246,7 @@ protected function _getExportTotals()
 
     /**
      * Iterate collection and call callback method per item
+     *
      * For callback method first argument always is item object
      *
      * @param string $callback
@@ -273,7 +278,12 @@ public function _exportIterateCollection($callback, array $args)
 
             $collection = $this->_getRowCollection($originalCollection);
             foreach ($collection as $item) {
-                call_user_func_array([$this, $callback], array_merge([$item], $args));
+                //phpcs:ignore Magento2.Functions.DiscouragedFunction
+                call_user_func_array(
+                    [$this, $callback],
+                    // phpcs:ignore Magento2.Performance.ForeachArrayMerge
+                    array_merge([$item], $args)
+                );
             }
         }
     }
@@ -307,7 +317,7 @@ protected function _exportCsvItem(
      */
     public function getCsvFile()
     {
-        $name = md5(microtime());
+        $name = hash('sha256', microtime());
         $file = $this->_path . '/' . $name . '.csv';
 
         $this->_directory->create($this->_path);
@@ -432,11 +442,11 @@ public function getRowRecord(\Magento\Framework\DataObject $data)
      */
     public function getExcelFile($sheetName = '')
     {
-        $collection = $this->_getRowCollection();
+        $collection = $this->_getPreparedCollection();
 
         $convert = new \Magento\Framework\Convert\Excel($collection->getIterator(), [$this, 'getRowRecord']);
 
-        $name = md5(microtime());
+        $name = hash('sha256', microtime());
         $file = $this->_path . '/' . $name . '.xml';
 
         $this->_directory->create($this->_path);
@@ -551,6 +561,8 @@ public function _getPreparedCollection()
     }
 
     /**
+     * Get export page size
+     *
      * @return int
      */
     public function getExportPageSize()