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Add a storage method for returning all current presence from all users (#9650)

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Split off from https://github.com/matrix-org/synapse/pull/9491

Adds a storage method for getting the current presence of all local users, optionally excluding those that are offline. This will be used by the code in #9491 when a PresenceRouter module informs Synapse that a given user should have `"ALL"` user presence updates routed to them. Specifically, it is used here: b588f16e39/synapse/handlers/presence.py (L1131-L1133)

Note that there is a `get_all_presence_updates` function just above. That function is intended to walk up the table through stream IDs, and is primarily used by the presence replication stream. I could possibly make use of it in the PresenceRouter-related code, but it would be a bit of a bodge.
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Andrew Morgan 2021-03-25 10:34:23 +00:00 • committed by GitHub
parent c602ba8336
commit fae81f2f68
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3 changed files with 69 additions and 3 deletions
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11
synapse/storage/database.py
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@ -1906,6 +1906,7 @@ class DatabasePool:
retcols: Iterable[str],
filters: Optional[Dict[str, Any]] = None,
keyvalues: Optional[Dict[str, Any]] = None,
exclude_keyvalues: Optional[Dict[str, Any]] = None,
order_direction: str = "ASC",
) -> List[Dict[str, Any]]:
"""
@ -1929,7 +1930,10 @@ class DatabasePool:
apply a WHERE ? LIKE ? clause.
keyvalues:
column names and values to select the rows with, or None to not
apply a WHERE clause.
apply a WHERE key = value clause.
exclude_keyvalues:
column names and values to exclude rows with, or None to not
apply a WHERE key != value clause.
order_direction: Whether the results should be ordered "ASC" or "DESC".
Returns:
@ -1938,7 +1942,7 @@ class DatabasePool:
if order_direction not in ["ASC", "DESC"]:
raise ValueError("order_direction must be one of 'ASC' or 'DESC'.")
where_clause = "WHERE " if filters or keyvalues else ""
where_clause = "WHERE " if filters or keyvalues or exclude_keyvalues else ""
arg_list = [] # type: List[Any]
if filters:
where_clause += " AND ".join("%s LIKE ?" % (k,) for k in filters)
@ -1947,6 +1951,9 @@ class DatabasePool:
if keyvalues:
where_clause += " AND ".join("%s = ?" % (k,) for k in keyvalues)
arg_list += list(keyvalues.values())
if exclude_keyvalues:
where_clause += " AND ".join("%s != ?" % (k,) for k in exclude_keyvalues)
arg_list += list(exclude_keyvalues.values())
sql = "SELECT %s FROM %s %s ORDER BY %s %s LIMIT ? OFFSET ?" % (
", ".join(retcols),