fix

apps/iot/src/model/terminal_model.erl

@@ -12,6 +12,7 @@
 -include_lib("stdlib/include/qlc.hrl").
 
 %% API
+-export([get_all_terminals/0, get_status_stat/0]).
 
 %% 获取app信息
 get_all_terminals() ->
@@ -26,11 +27,22 @@ get_all_terminals() ->
             {error, Reason}
     end.
 
-get_status_groups() ->
-
-
-    ok.
+%% 获取状态分组统计信息
+-spec get_status_stat() -> {ok, #{}} | {error, Reason :: any()}.
+get_status_stat() ->
+    Fun = fun() ->
+        mnesia:foldl(fun(#terminal{status = Status}, Acc) ->
+            Num = maps:get(Status, Acc, 0),
+            Acc#{Status => Num + 1}
+                     end, #{}, terminal)
+        end,
 
+    case mnesia:transaction(Fun) of
+        {atomic, Stat} ->
+            {ok, Stat};
+        {aborted, Reason} ->
+            {error, Reason}
+    end.
 
 insert(Id, HostId, Name, ProductId, VendorId, Model, CellId) ->
     Terminal = #terminal{