Fixed issue with importing and deleting data processors

CRM/Dataprocessor/Utils/Extensions.php

+<?php
+/**
+ * @author Jaap Jansma <jaap.jansma@civicoop.org>
+ * @license AGPL-3.0
+ */
+
+use CRM_Dataprocessor_ExtensionUtil as E;
+
+class CRM_Dataprocessor_Utils_Extensions {
+
+  /**
+   * Helper function for extension to load and unload data processors from the extension.
+   *
+   * @param $extension
+   *
+   * @throws \CiviCRM_API3_Exception
+   */
+  public static function updateDataProcessorsFromExtension($extension) {
+    $result = civicrm_api3('DataProcessor', 'import', ['extension' => $extension]);
+    if (isset($result['import']['kept data processors']) && count($result['import']['kept data processors'])) {
+      $message = E::ts('Kept data processors because you made changes to it.');
+      $message .= '<ul>';
+      foreach($result['import']['kept data processors'] as $dataprocessor) {
+        $message .= '<li>'.$dataprocessor.'</li>';
+      }
+      $message .= '</ul>';
+      CRM_Core_Session::setStatus($message, E::ts('Kept data processors'), 'info', ['expires' => 0]);
+    }
+  }
+
+}