Export results to CSV fails

[shaidar]

Seeing the following error when running export results to csv on both ironwood and juniper (xblock-poll v1.9.6)

2020-07-27 14:35:28,243 INFO 27792 [celery.worker.strategy] strategy.py:60 - Received task: poll.tasks.export_csv_data[825ca36b-97dc-489f-a664-a398226a569d]
2020-07-27 14:35:34,175 ERROR 27792 [celery.worker.job] log.py:282 - Task poll.tasks.export_csv_data[825ca36b-97dc-489f-a664-a398226a569d] raised unexpected: ItemNotFoundError(BlockKey(type=u'poll', id=u'858412a8d2044fb9bf336d095010a416'),)
Traceback (most recent call last):
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/celery/app/trace.py", line 240, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/celery/app/trace.py", line 438, in __protected_call__
    return self.run(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/poll/tasks.py", line 16, in export_csv_data
    src_block = modulestore().get_item(UsageKey.from_string(block_id))
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/mixed.py", line 89, in inner
    retval = func(field_decorator=strip_key_collection, *args, **kwargs)
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/mixed.py", line 255, in get_item
    return store.get_item(usage_key, depth, **kwargs)
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/split_mongo/split_draft.py", line 280, in get_item
    return super(DraftVersioningModuleStore, self).get_item(usage_key, depth=depth, **kwargs)
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/split_mongo/split.py", line 1222, in get_item
    items = self._load_items(course, [BlockKey.from_usage_key(usage_key)], depth, **kwargs)
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/split_mongo/split.py", line 830, in _load_items
    return [runtime.load_item(block_key, course_entry, **kwargs) for block_key in block_keys]
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/split_mongo/caching_descriptor_system.py", line 130, in _load_item
    block_data = self.get_module_data(block_key, course_key)
  File "/edx/app/edxapp/edx-platform/common/lib/xmodule/xmodule/modulestore/split_mongo/caching_descriptor_system.py", line 158, in get_module_data
    raise ItemNotFoundError(block_key)
ItemNotFoundError: BlockKey(type=u'poll', id=u'858412a8d2044fb9bf336d095010a416')

[symbolist]

@shaidar Thanks for the report! You should be able to use the Instructor Dashboard > Data Download section to download this data. The duplicate feature in the XBlock code is most likely going to be removed in the future.

[shaidar]

Thanks. That seems to give us what we need.