def import_upload(dataset_name, sig, account_id,
value_col, link_col):
dataset = Dataset.find(dataset_name)
account = Account.by_id(account_id)
metadata, row_set = parse_upload(dataset, sig)
headers = detect_headers(row_set)
for row in row_set:
data = dict([(c.column, c.value) for c in row])
value = data.pop(value_col) if value_col else None
link = data.pop(link_col) if link_col else None
if link_col:
d = {'key': link, 'data': data}
link_obj = Link.lookup(dataset, d, account,
match_value=False)
data = {}
if value_col:
d = {'value': value, 'data': data}
value_obj = Value.by_value(dataset, value)
if value_obj is None:
value_obj = Value.create(dataset,
d, account)
value_obj.data = data
if link_col and value_col:
link_obj.match(dataset, {'choice': value_obj.id},
account)
db.session.commit()
def view_by_value(dataset):
dataset = Dataset.find(dataset)
value = Value.by_value(dataset, request.args.get('value'))
if value is None:
raise NotFound("No such value: %s" % request.args.get('value'))
return view(dataset.name, value.id)
