def validate_or_raise(att):
start = att['attached']
if 'removed' in att and att['removed']:
end = att['removed']
else:
end = model_utils.current_time_as_lajistore_timestamp()
if model_utils.timestamp_to_datetime(end) < model_utils.timestamp_to_datetime(start):
raise ValueError
ind_atts = get_attachments_of_individual_during_time(att['individualID'],
start, end)
if 'id' in att and att['id']:
ind_atts = [a for a in ind_atts if a['id'] != att['id']]
if len(ind_atts) != 0:
raise AlreadyHasDevice([a['deviceID'] for a in ind_atts])
dev_atts = get_attachments_of_device_during_time(att['deviceID'],
start, end)
if 'id' in att and att['id']:
dev_atts = [a for a in dev_atts if a['id'] != att['id']]
if len(dev_atts) != 0:
raise DeviceAlreadyAttached([a['individualID'] for a in dev_atts])
return True
def _filter_attachments_by_timerange(attachments, start, end):
ret = []
for att in attachments:
att_start = att['attached']
if 'removed' in att and att['removed']:
att_end = att['removed']
else:
att_end = model_utils.current_time_as_lajistore_timestamp()
if model_utils.timestamp_timeranges_overlap((start, end), (att_start, att_end)):
ret.append(att)
return ret
