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-rw-r--r--synapse/handlers/receipts.py25
1 files changed, 10 insertions, 15 deletions
diff --git a/synapse/handlers/receipts.py b/synapse/handlers/receipts.py
index a7a29b758b..69ac468f75 100644
--- a/synapse/handlers/receipts.py
+++ b/synapse/handlers/receipts.py
@@ -130,11 +130,10 @@ class ReceiptsHandler:
 
     async def _handle_new_receipts(self, receipts: List[ReadReceipt]) -> bool:
         """Takes a list of receipts, stores them and informs the notifier."""
-        min_batch_id: Optional[int] = None
-        max_batch_id: Optional[int] = None
 
+        receipts_persisted: List[ReadReceipt] = []
         for receipt in receipts:
-            res = await self.store.insert_receipt(
+            stream_id = await self.store.insert_receipt(
                 receipt.room_id,
                 receipt.receipt_type,
                 receipt.user_id,
@@ -143,30 +142,26 @@ class ReceiptsHandler:
                 receipt.data,
             )
 
-            if not res:
-                # res will be None if this receipt is 'old'
+            if stream_id is None:
+                # stream_id will be None if this receipt is 'old'
                 continue
 
-            stream_id, max_persisted_id = res
+            receipts_persisted.append(receipt)
 
-            if min_batch_id is None or stream_id < min_batch_id:
-                min_batch_id = stream_id
-            if max_batch_id is None or max_persisted_id > max_batch_id:
-                max_batch_id = max_persisted_id
-
-        # Either both of these should be None or neither.
-        if min_batch_id is None or max_batch_id is None:
+        if not receipts_persisted:
             # no new receipts
             return False
 
-        affected_room_ids = list({r.room_id for r in receipts})
+        max_batch_id = self.store.get_max_receipt_stream_id()
+
+        affected_room_ids = list({r.room_id for r in receipts_persisted})
 
         self.notifier.on_new_event(
             StreamKeyType.RECEIPT, max_batch_id, rooms=affected_room_ids
         )
         # Note that the min here shouldn't be relied upon to be accurate.
         await self.hs.get_pusherpool().on_new_receipts(
-            min_batch_id, max_batch_id, affected_room_ids
+            {r.user_id for r in receipts_persisted}
         )
 
         return True