def _validate_segment(self,
context,
network_id,
segment_id,
action=None,
old_segment_id=None):
segments = subnet_obj.Subnet.get_values(context,
'segment_id',
network_id=network_id)
associated_segments = set(segments)
if None in associated_segments and len(associated_segments) > 1:
raise segment_exc.SubnetsNotAllAssociatedWithSegments(
network_id=network_id)
if action == 'update' and old_segment_id != segment_id:
# Check the current state of segments and subnets on the network
# before allowing migration from non-routed to routed network.
if len(segments) > 1:
raise segment_exc.SubnetsNotAllAssociatedWithSegments(
network_id=network_id)
if (None not in associated_segments
and segment_id not in associated_segments):
raise segment_exc.SubnetSegmentAssociationChangeNotAllowed()
if network_obj.NetworkSegment.count(context,
network_id=network_id) > 1:
raise segment_exc.NoUpdateSubnetWhenMultipleSegmentsOnNetwork(
network_id=network_id)
if segment_id:
segment = network_obj.NetworkSegment.get_object(context,
id=segment_id)
if segment.network_id != network_id:
raise segment_exc.NetworkIdsDontMatch(
subnet_network=network_id, segment_id=segment_id)
if segment.is_dynamic:
raise segment_exc.SubnetCantAssociateToDynamicSegment()
def _validate_segment(self, context, network_id, segment_id):
query = context.session.query(models_v2.Subnet.segment_id)
query = query.filter(models_v2.Subnet.network_id == network_id)
associated_segments = set(row.segment_id for row in query)
if None in associated_segments and len(associated_segments) > 1:
raise segment_exc.SubnetsNotAllAssociatedWithSegments(
network_id=network_id)
if segment_id:
segment = network_obj.NetworkSegment.get_object(context,
id=segment_id)
if segment.network_id != network_id:
raise segment_exc.NetworkIdsDontMatch(
subnet_network=network_id, segment_id=segment_id)
if segment.is_dynamic:
raise segment_exc.SubnetCantAssociateToDynamicSegment()
