def get_latest_events(group_hash_list):
"""
Fetch the latest events for a collection of ``GroupHash`` instances.
Returns a list of events (or ``None``) in the same order as the input
sequence.
"""
group_hashes_by_project_id = defaultdict(list)
for group_hash in group_hash_list:
group_hashes_by_project_id[group_hash.project_id].append(group_hash)
events_by_group_hash = {}
for project_id, group_hash_list_chunk in group_hashes_by_project_id.items(
):
event_id_list = GroupHash.fetch_last_processed_event_id(
[i.id for i in group_hash_list_chunk])
event_by_event_id = {
event.event_id: event
for event in Event.objects.filter(
project_id=project_id,
event_id__in=filter(None, event_id_list),
)
}
for group_hash, event_id in zip(group_hash_list_chunk, event_id_list):
event = event_by_event_id.get(event_id)
if event is not None and event.group_id == group_hash.group_id:
events_by_group_hash[group_hash] = event
return [
events_by_group_hash.get(group_hash) for group_hash in group_hash_list
]
def get_latest_events(group_hash_list):
"""
Fetch the latest events for a collection of ``GroupHash`` instances.
Returns a list of events (or ``None``) in the same order as the input
sequence.
"""
group_hashes_by_project_id = defaultdict(list)
for group_hash in group_hash_list:
group_hashes_by_project_id[group_hash.project_id].append(group_hash)
events_by_group_hash = {}
for project_id, group_hash_list_chunk in group_hashes_by_project_id.items():
event_id_list = GroupHash.fetch_last_processed_event_id(
[i.id for i in group_hash_list_chunk])
event_by_event_id = {
event.event_id: event
for event in Event.objects.filter(
project_id=project_id,
event_id__in=filter(None, event_id_list),
)
}
for group_hash, event_id in zip(group_hash_list_chunk, event_id_list):
event = event_by_event_id.get(event_id)
if event is not None and event.group_id == group_hash.group_id:
events_by_group_hash[group_hash] = event
return [events_by_group_hash.get(group_hash) for group_hash in group_hash_list]
def test_fetch_and_record_last_processed_event_id(self):
group = self.group
grouphash = GroupHash.objects.create(
project=group.project,
group=group,
hash='xyz',
)
GroupHash.record_last_processed_event_id(
grouphash.id,
'event',
)
assert GroupHash.fetch_last_processed_event_id(
[grouphash.id, -1],
) == ['event', None]