1 files changed, 31 insertions, 20 deletions

diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 285c586cfe..5233430028 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -101,30 +101,16 @@ class EventsStore(SQLBaseStore):
 
     @defer.inlineCallbacks
     @log_function
-    def persist_event(self, event, context, backfilled=False,
+    def persist_event(self, event, context,
                       is_new_state=True, current_state=None):
-        stream_ordering = None
-        if backfilled:
-            self.min_stream_token -= 1
-            stream_ordering = self.min_stream_token
-
-        if stream_ordering is None:
-            stream_ordering_manager = self._stream_id_gen.get_next()
-        else:
-            @contextmanager
-            def stream_ordering_manager():
-                yield stream_ordering
-            stream_ordering_manager = stream_ordering_manager()
-
         try:
-            with stream_ordering_manager as stream_ordering:
+            with self._stream_id_gen.get_next() as stream_ordering:
                 event.internal_metadata.stream_ordering = stream_ordering
                 yield self.runInteraction(
                     "persist_event",
                     self._persist_event_txn,
                     event=event,
                     context=context,
-                    backfilled=backfilled,
                     is_new_state=is_new_state,
                     current_state=current_state,
                 )
@@ -165,13 +151,38 @@ class EventsStore(SQLBaseStore):
 
         defer.returnValue(events[0] if events else None)
 
+    @defer.inlineCallbacks
+    def get_events(self, event_ids, check_redacted=True,
+                   get_prev_content=False, allow_rejected=False):
+        """Get events from the database
+
+        Args:
+            event_ids (list): The event_ids of the events to fetch
+            check_redacted (bool): If True, check if event has been redacted
+                and redact it.
+            get_prev_content (bool): If True and event is a state event,
+                include the previous states content in the unsigned field.
+            allow_rejected (bool): If True return rejected events.
+
+        Returns:
+            Deferred : Dict from event_id to event.
+        """
+        events = yield self._get_events(
+            event_ids,
+            check_redacted=check_redacted,
+            get_prev_content=get_prev_content,
+            allow_rejected=allow_rejected,
+        )
+
+        defer.returnValue({e.event_id: e for e in events})
+
     @log_function
-    def _persist_event_txn(self, txn, event, context, backfilled,
+    def _persist_event_txn(self, txn, event, context,
                            is_new_state=True, current_state=None):
         # We purposefully do this first since if we include a `current_state`
         # key, we *want* to update the `current_state_events` table
         if current_state:
-            txn.call_after(self.get_current_state_for_key.invalidate_all)
+            txn.call_after(self._get_current_state_for_key.invalidate_all)
             txn.call_after(self.get_rooms_for_user.invalidate_all)
             txn.call_after(self.get_users_in_room.invalidate, (event.room_id,))
             txn.call_after(self.get_joined_hosts_for_room.invalidate, (event.room_id,))
@@ -198,7 +209,7 @@ class EventsStore(SQLBaseStore):
         return self._persist_events_txn(
             txn,
             [(event, context)],
-            backfilled=backfilled,
+            backfilled=False,
             is_new_state=is_new_state,
         )
 
@@ -455,7 +466,7 @@ class EventsStore(SQLBaseStore):
             for event, _ in state_events_and_contexts:
                 if not context.rejected:
                     txn.call_after(
-                        self.get_current_state_for_key.invalidate,
+                        self._get_current_state_for_key.invalidate,
                         (event.room_id, event.type, event.state_key,)
                     )