def import_bundle(bundle, owner_id, course_id=None, update=True):
if 'course' in bundle:
course = Course.decode_json(bundle['course'], owner_id=owner_id)
db.session.add(course)
db.session.commit()
else:
course = Course.by_id(course_id)
assignment_remap = {}
assignments = bundle.get('assignments', [])
for assignment_data in natsorted(assignments, key=lambda a: a['name']):
assignment = Assignment.decode_json(assignment_data,
course_id=course.id,
owner_id=owner_id)
assignment_remap[assignment_data['url']] = assignment.id
group_remap = {}
groups = bundle.get('groups', [])
for group_data in natsorted(groups, key=lambda g: g['name']):
group = AssignmentGroup.decode_json(group_data,
course_id=course.id,
owner_id=owner_id)
group_remap[group_data['url']] = group.id
memberships = bundle.get('memberships', [])
for member_data in sorted(memberships, key=sorter):
assignment_id = assignment_remap[member_data['assignment_url']]
group_id = group_remap[member_data['assignment_group_url']]
member = AssignmentGroupMembership.decode_json(
member_data,
assignment_id=assignment_id,
assignment_group_id=group_id)
return True
