Issue #3465106: Add a way to reset training progress by learning path

opigno_learning_path/src/TrainingManager.php

@@ -1197,16 +1197,37 @@ class TrainingManager {
    *
    * @todo Remove when no longer needed.
    */
-  public function resetTraining($user_id, $group_id) {
+  public function resetTraining($group_id, $user_id = NULL) {
     $lp_status_storage = $this->getStorage('user_lp_status');
     $module_status_storage = $this->getStorage('user_module_status');
     $answer_storage = $this->getStorage('opigno_answer');
 
-    $lp_status_ids = $lp_status_storage->getQuery()
+    $lp_status_query = $lp_status_storage->getQuery();
+    $lp_status_query
       ->accessCheck(FALSE)
-      ->condition('gid', $group_id)
-      ->condition('uid', $user_id)
-      ->execute();
+      ->condition('gid', $group_id);
+    if ($user_id !== NULL) {
+      $lp_status_query->condition('uid', $user_id);
+    }
+    $lp_status_ids = $lp_status_query->execute();
+
+    // If user ID is not provided and some learning path statuses are
+    // completed - only clear current module and current activity values
+    // if students wanted to revisit the training.
+    if ($user_id === NULL) {
+      foreach ($lp_status_storage->loadMultiple($lp_status_ids) as $lp_status) {
+        if (
+          $lp_status->getStatus() === LPStatus::STATUS_PROGRESS ||
+          $lp_status->getStatus() === LPStatus::STATUS_NEEDS_EVALUATION
+        ) {
+          continue;
+        }
+        dump($lp_status->id());
+        $lp_status->set('current_module_status', NULL);
+        $lp_status->save();
+        unset($lp_status_ids[$lp_status->id()]);
+      }
+    }
 
     $module_status_ids = [];
     if (\count($lp_status_ids) !== 0) {