[Oxfam] AttributeError: 'ReferenceManual' object has no attribute 'blobfile'

[Stefan Walluhn]

We got an error report from an Oxfam Karl user. When accessing the reference manuals (https://karl.oxfam.org.uk/intranets/files/reference-manuals/), selecting one item in the showed file list and clicking on the 'Download' button, there is a 'General error'

The tracebacks looks as follows:

AttributeError: 'ReferenceManual' object has no attribute 'blobfile'
Exception when processing https://karl.oxfam.org.uk/intranets/files/reference-manuals/download_zipped?filenames%5B%5D=health-and-safety
Referer: https://karl.oxfam.org.uk/intranets/files/reference-manuals/

Traceback (most recent call last):
  File "/srv/multikarl/deployment/eggs/pyramid-1.2.1-py2.6.egg/pyramid/tweens.py", line 17, in excview_tween
    response = handler(request)
  File "/srv/multikarl/deployment/eggs/pyramid_tm-0.5-py2.6.egg/pyramid_tm/__init__.py", line 107, in tm_tween
    return response
  File "/srv/multikarl/deployment/eggs/pyramid_tm-0.5-py2.6.egg/pyramid_tm/__init__.py", line 75, in __exit__
    return self._retry_or_raise(t, v, tb)
  File "/srv/multikarl/deployment/eggs/pyramid_tm-0.5-py2.6.egg/pyramid_tm/__init__.py", line 60, in _retry_or_raise
    reraise(t, v, tb) # otherwise reraise the exception
  File "/srv/multikarl/deployment/eggs/pyramid_tm-0.5-py2.6.egg/pyramid_tm/__init__.py", line 100, in tm_tween
    response = handler(request)
  File "/srv/multikarl/deployment/eggs/pyramid-1.2.1-py2.6.egg/pyramid/router.py", line 153, in handle_request
    response = view_callable(context, request)
  File "/srv/multikarl/deployment/eggs/pyramid-1.2.1-py2.6.egg/pyramid/config/views.py", line 186, in _secured_view
    return view(context, request)
  File "/srv/multikarl/deployment/eggs/pyramid-1.2.1-py2.6.egg/pyramid/config/views.py", line 319, in viewresult_to_response
    result = view(context, request)
  File "/srv/multikarl/deployment/eggs/karl-3.111-py2.6.egg/karl/content/views/files.py", line 669, in download_zipped
    add_selected(zipped, context[filename], path)
  File "/srv/multikarl/deployment/eggs/karl-3.111-py2.6.egg/karl/content/views/files.py", line 661, in add_selected
    data = selected.blobfile.open().read()
AttributeError: 'ReferenceManual' object has no attribute 'blobfile'