def _prepare_sip(obj, dummy_eng):
d = Deposition(obj)
sip = d.get_latest_sip(sealed=False)
if sip is None:
sip = d.create_sip()
# FIXME: Move to somewhere more appropriate
# create_sip by default stick files into the files attribute.
if 'files' in sip.metadata:
sip.metadata['fft'] = sip.metadata['files']
del sip.metadata['files']
sip.agents = [Agent(role='creator', from_request_context=True)]
d.update()
