fix(api): query client subscriptions from cluster empty check

2022-01-25 10:53:21 +08:00 · 2022-01-25 10:53:21 +08:00 · 6b020b4a01
parent a3e3f2216c
commit 6b020b4a01
1 changed files with 8 additions and 4 deletions
--- a/apps/emqx_management/src/emqx_mgmt.erl
+++ b/apps/emqx_management/src/emqx_mgmt.erl
@ -269,10 +269,14 @@ list_authz_cache(ClientId) ->

 list_client_subscriptions(ClientId) ->
    Results = [client_subscriptions(Node, ClientId) || Node <- mria_mnesia:running_nodes()],
-    Expected = lists:filter(fun({error, _}) -> false;
-                               ([]) -> false;
-                               (_) -> true
-                            end, Results),
+    Filter =
+        fun
+            ({error, _}) ->
+                false;
+            ({_Node, List}) ->
+                erlang:is_list(List) andalso 0 < erlang:length(List)
+        end,
+    Expected = lists:filter(Filter, Results),
    case Expected of
        [] -> [];
        [Result | _] -> Result