Return the thread ID properly down sync. (#14159)

A receipt's thread ID, if one exists, should be added to the body of a receipt.
matrix-org · Oct 12, 2022 · e6e876b · e6e876b
1 parent 87099b6
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diff --git a/changelog.d/14159.feature b/changelog.d/14159.feature
@@ -0,0 +1 @@
+Support for thread-specific notifications & receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771) and [MSC3773](https://github.com/matrix-org/matrix-spec-proposals/pull/3773)).
diff --git a/synapse/storage/databases/main/receipts.py b/synapse/storage/databases/main/receipts.py
@@ -416,6 +416,8 @@ def f(txn: LoggingTransaction) -> List[Dict[str, Any]]:
             # {"$foo:bar": { "read": { "@user:host": <receipt> }, .. }, .. }
             event_entry = room_event["content"].setdefault(row["event_id"], {})
             receipt_type = event_entry.setdefault(row["receipt_type"], {})
+            if row["thread_id"]:
+                receipt_type[row["user_id"]]["thread_id"] = row["thread_id"]
 
             receipt_type[row["user_id"]] = db_to_json(row["data"])