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Clarify documentation on get_event* methods 

Make it clearer how they behave in the face of rejected and/or missing events.
This commit is contained in:
Richard van der Hoff 2020-01-06 17:12:06 +00:00
parent ba897a7590
commit bc42da4ab8
1 changed files with 35 additions and 9 deletions
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44
synapse/storage/data_stores/main/events_worker.py
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@ -137,7 +137,7 @@ class EventsWorkerStore(SQLBaseStore):
@defer.inlineCallbacks
def get_event(
self,
event_id: List[str],
event_id: str,
redact_behaviour: EventRedactBehaviour = EventRedactBehaviour.REDACT,
get_prev_content: bool = False,
allow_rejected: bool = False,
@ -148,15 +148,22 @@ class EventsWorkerStore(SQLBaseStore):
Args:
event_id: The event_id of the event to fetch
redact_behaviour: Determine what to do with a redacted event. Possible values:
* AS_IS - Return the full event body with no redacted content
* REDACT - Return the event but with a redacted body
* DISALLOW - Do not return redacted events
* DISALLOW - Do not return redacted events (behave as per allow_none
if the event is redacted)
get_prev_content: If True and event is a state event,
include the previous states content in the unsigned field.
allow_rejected: If True return rejected events.
allow_rejected: If True, return rejected events. Otherwise,
behave as per allow_none.
allow_none: If True, return None if no event found, if
False throw a NotFoundError
check_room_id: if not None, check the room of the found event.
If there is a mismatch, behave as per allow_none.
@ -196,14 +203,18 @@ class EventsWorkerStore(SQLBaseStore):
Args:
event_ids: The event_ids of the events to fetch
redact_behaviour: Determine what to do with a redacted event. Possible
values:
* AS_IS - Return the full event body with no redacted content
* REDACT - Return the event but with a redacted body
* DISALLOW - Do not return redacted events
* DISALLOW - Do not return redacted events (omit them from the response)
get_prev_content: If True and event is a state event,
include the previous states content in the unsigned field.
allow_rejected: If True return rejected events.
allow_rejected: If True, return rejected events. Otherwise,
omits rejeted events from the response.
Returns:
Deferred : Dict from event_id to event.
@ -228,15 +239,21 @@ class EventsWorkerStore(SQLBaseStore):
"""Get events from the database and return in a list in the same order
as given by `event_ids` arg.
Unknown events will be omitted from the response.
Args:
event_ids: The event_ids of the events to fetch
redact_behaviour: Determine what to do with a redacted event. Possible values:
* AS_IS - Return the full event body with no redacted content
* REDACT - Return the event but with a redacted body
* DISALLOW - Do not return redacted events
* DISALLOW - Do not return redacted events (omit them from the response)
get_prev_content: If True and event is a state event,
include the previous states content in the unsigned field.
allow_rejected: If True, return rejected events.
allow_rejected: If True, return rejected events. Otherwise,
omits rejected events from the response.
Returns:
Deferred[list[EventBase]]: List of events fetched from the database. The
@ -369,9 +386,14 @@ class EventsWorkerStore(SQLBaseStore):
If events are pulled from the database, they will be cached for future lookups.
Unknown events are omitted from the response.
Args:
event_ids (Iterable[str]): The event_ids of the events to fetch
allow_rejected (bool): Whether to include rejected events
allow_rejected (bool): Whether to include rejected events. If False,
rejected events are omitted from the response.
Returns:
Deferred[Dict[str, _EventCacheEntry]]:
@ -506,9 +528,13 @@ class EventsWorkerStore(SQLBaseStore):
Returned events will be added to the cache for future lookups.
Unknown events are omitted from the response.
Args:
event_ids (Iterable[str]): The event_ids of the events to fetch
allow_rejected (bool): Whether to include rejected events
allow_rejected (bool): Whether to include rejected events. If False,
rejected events are omitted from the response.
Returns:
Deferred[Dict[str, _EventCacheEntry]]: