Multiple file download results in 500

[kofalt]

POST to /api/download with request body:

{"optional":true,"nodes":[
{"level":"session","_id":"56b3585d72ff76421fbca735"},
{"level":"session","_id":"56b3585e72ff76421fbca739"},
{"level":"session","_id":"56b3586572ff76421fbca743"}]}

Results in:

2016-02-05 21:01:43             root               webapp2.py  1552:ERRO 'NoneType' object has no attribute '__getitem__'
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 1535, in __call__
    rv = self.handle_exception(request, response, e)
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 1529, in __call__
    rv = self.router.dispatch(request, response)
  File "./api/api.py", line 121, in dispatcher
    rv = router.default_dispatcher(request, response)
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 1278, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 1102, in __call__
    return handler.dispatch()
  File "./api/base.py", line 128, in dispatch
    return super(RequestHandler, self).dispatch()
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 572, in dispatch
    return self.handle_exception(e, self.app.debug)
  File "/usr/local/lib/python2.7/dist-packages/webapp2.py", line 570, in dispatch
    return method(*args, **kwargs)
  File "./api/core.py", line 466, in download
    return self._preflight_archivestream(req_spec)
  File "./api/core.py", line 287, in _preflight_archivestream
    prefix = project['group'] + '/' + project['label'] + '/' + self._path_from_container(session, used_subpaths, project['_id'])
TypeError: 'NoneType' object has no attribute '__getitem__'

[rentzso]

@kofalt could you give more info on how the sessions were created?

It seems that the parent project is missing.

[rentzso]

can you run these commands on a mongo shell?

> use scitran
switched to db scitran
> var ids = ["56b3586572ff76421fbca743", "56b3585e72ff76421fbca739", "56b3585d72ff76421fbca735"]
> for (var i = 0; i < ids.length; i++){ var s = db.sessions.findOne({"_id":ObjectId(ids[i])}); if (s) { var p = db.projects.findOne({"_id":s.project}); printjson(p) } else { print("session not found"); } }

Thanks!

[kofalt]

What we've learned so far:

> db.sessions.count()
13
> db.sessions.count({"project": {"$type": 7}})
10
> db.sessions.count({"project": {"$type": 2}})
3

Some sessions are getting a project field of type string rather than ID.
I suspect there's an endpoint somewhere that doesn't wrap the API's project string.