def destroy_portgroup(self, portgroup_id):
def portgroup_not_empty(session):
"""Checks whether the portgroup does not have ports."""
query = model_query(models.Port)
query = add_port_filter_by_portgroup(query, portgroup_id)
return query.count() != 0
with _session_for_write() as session:
if portgroup_not_empty(session):
raise exception.PortgroupNotEmpty(portgroup=portgroup_id)
query = model_query(models.Portgroup, session=session)
query = add_identity_filter(query, portgroup_id)
count = query.delete()
if count == 0:
raise exception.PortgroupNotFound(portgroup=portgroup_id)
def update_portgroup(self, portgroup_id, values):
if 'uuid' in values:
msg = _("Cannot overwrite UUID for an existing portgroup.")
raise exception.InvalidParameterValue(err=msg)
with _session_for_write() as session:
try:
query = model_query(models.Portgroup)
query = add_portgroup_filter(query, portgroup_id)
ref = query.one()
ref.update(values)
session.flush()
except NoResultFound:
raise exception.PortgroupNotFound(portgroup=portgroup_id)
except db_exc.DBDuplicateEntry as exc:
if 'name' in exc.columns:
raise exception.PortgroupDuplicateName(name=values['name'])
elif 'address' in exc.columns:
raise exception.PortgroupMACAlreadyExists(
mac=values['address'])
else:
raise
return ref
def get_portgroup_by_address(self, address):
query = model_query(models.Portgroup).filter_by(address=address)
try:
return query.one()
except NoResultFound:
raise exception.PortgroupNotFound(portgroup=address)
def get_portgroup_by_name(self, name):
query = model_query(models.Portgroup).filter_by(name=name)
try:
return query.one()
except NoResultFound:
raise exception.PortgroupNotFound(portgroup=name)
def get_portgroup_by_uuid(self, portgroup_uuid):
query = model_query(models.Portgroup).filter_by(uuid=portgroup_uuid)
try:
return query.one()
except NoResultFound:
raise exception.PortgroupNotFound(portgroup=portgroup_uuid)