Fixed issue registering activity on shotless task

attract/tasks/eve_hooks.py

@@ -93,16 +93,18 @@ def _parent_name(task):
 
 def register_task_activity(task, descr):
     user_id = pillar.api.utils.authentication.current_user_id()
-    if not user_id:
-        log.error('Unable to register task activity %r for task %s: user_id=%s',
-                  descr, task['_id'], user_id)
-        return
+
+    context_ob = task.get('parent')
+    context_type = 'node'
+    if not context_ob:
+        context_type = 'project'
+        context_ob = task['project']
 
     pillar.api.activities.register_activity(
         user_id,
         descr + _parent_name(task),
         'node', task['_id'],
-        'node', task.get('parent'),
+        context_type, context_ob,
         task['project'],
         node_type=task['node_type'],
     )