Rename 'pruned' to 'pruned_because'

synapse/api/events/__init__.py

@@ -59,7 +59,7 @@ class SynapseEvent(JsonEncodedObject):
         "age_ts",
         "prev_content",
         "prev_state",
-        "pruned",
+        "pruned_because",
     ]
 
     internal_keys = [

synapse/storage/__init__.py

@@ -206,7 +206,7 @@ class DataStore(RoomMemberStore, RoomStore,
         unrec = {
             k: v
             for k, v in event.get_full_dict().items()
-            if k not in vals.keys() and k not in ["deleted", "pruned"]
+            if k not in vals.keys() and k not in ["deleted", "pruned_because"]
         }
         vals["unrecognized_keys"] = json.dumps(unrec)
 

synapse/storage/_base.py

@@ -398,7 +398,7 @@ class SQLBaseStore(object):
 
                 if del_evs:
                     prune_event(ev)
-                    ev.pruned = del_evs[0]
+                    ev.pruned_because = del_evs[0]
 
         return events