def delete_events_in_device(resource_name: str, device: dict):
"""
Deletes the references of the given device in all the events, and deletes the full event if it references only to
the device.
"""
if resource_name in Device.resource_types:
_id = device["_id"]
qin = {"$in": [_id]}
query = {"$or": [{"device": _id}, {"devices": qin}, {"components": qin}], "@type": {"$ne": "devices:Register"}}
sort = {"_created": pymongo.ASCENDING} # Order is important to find the first Snapshot (see below)
first_snapshot_found = False
for event in DeviceEventDomain.get({"$query": query, "$orderby": sort}):
if not first_snapshot_found and event["@type"] == "devices:Snapshot":
# We cannot delete the Snapshot that created the device, because there is a change to create
# an infinite loop: Snapshot that created device -> Register -> DEL /device -> Snapshot that created...
first_snapshot_found = True
else:
event_resource = Naming.resource(event["@type"])
if event.get("device", None) == _id: # Am I the 'device' of the event?
execute_delete(event_resource, event["_id"])
elif [_id] == event.get("devices", []): # Is there no more 'devices' in the event, apart from me?
execute_delete(event_resource, event["_id"])
# All events that do not use 'components' for materialization (aka Add/Remove) should be erased
# if there are no more components
elif event["@type"] in ("devices:Add", "devices:Remove") and event["components"] == [_id]:
execute_delete(event_resource, event["_id"])
else: # Keep the event; just delete my reference
DeviceEventDomain.update_raw(event["_id"], {"$pull": {"devices": qin, "components": qin}})
def delete_events_in_device(resource_name: str, device: dict):
"""
Deletes the references of the given device in all the events, and deletes the full event if it references only to
the device.
"""
if resource_name in Device.resource_types:
_id = device['_id']
qin = {'$in': [_id]}
query = {'$or': [{'device': _id}, {'devices': qin}, {'components': qin}], '@type': {'$ne': 'devices:Register'}}
sort = {'_created': pymongo.ASCENDING} # Order is important to find the first Snapshot (see below)
first_snapshot_found = False
for event in DeviceEventDomain.get({'$query': query, '$orderby': sort}):
if not first_snapshot_found and event['@type'] == 'devices:Snapshot':
# We cannot delete the Snapshot that created the device, because there is a change to create
# an infinite loop: Snapshot that created device -> Register -> DEL /device -> Snapshot that created...
first_snapshot_found = True
else:
event_resource = Naming.resource(event['@type'])
if event.get('device', None) == _id: # Am I the 'device' of the event?
execute_delete(event_resource, event['_id'])
elif [_id] == event.get('devices', []): # Is there no more 'devices' in the event, apart from me?
execute_delete(event_resource, event['_id'])
# All events that do not use 'components' for materialization (aka Add/Remove) should be erased
# if there are no more components
elif event['@type'] in ('devices:Add', 'devices:Remove') and event['components'] == [_id]:
execute_delete(event_resource, event['_id'])
else: # Keep the event; just delete my reference
DeviceEventDomain.update_raw(event['_id'], {'$pull': {'devices': qin, 'components': qin}})
def set_prefix():
for event in DeviceEventDomain.get({}):
try:
resource_type = DeviceEventDomain.new_type(event['@type'])
except TypeError:
pass
else:
DeviceEventDomain.update_raw(event['_id'], {'$set': {'@type': resource_type}})
print('Events prefixed.')
def set_prefix():
for event in DeviceEventDomain.get({}):
try:
resource_type = DeviceEventDomain.new_type(event['@type'])
except TypeError:
pass
else:
DeviceEventDomain.update_raw(
event['_id'], {'$set': {
'@type': resource_type
}})
print('Events prefixed.')
