From a3f759034184e3e68be9adbac63366074dd10ddd Mon Sep 17 00:00:00 2001
From: anlicheng <244108715@qq.com>
Date: Fri, 21 Jun 2024 01:35:23 +0800
Subject: [PATCH] fix device query

---
 apps/iot/src/http_handler/device_handler.erl | 6 +++---
 apps/iot/src/iot_device.erl                  | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/apps/iot/src/http_handler/device_handler.erl b/apps/iot/src/http_handler/device_handler.erl
index d5dcf30..2252058 100644
--- a/apps/iot/src/http_handler/device_handler.erl
+++ b/apps/iot/src/http_handler/device_handler.erl
@@ -80,8 +80,8 @@ handle_request("POST", "/device/query", _, Params = #{<<"device_uuid">> := Devic
 
                 true ->
                     {ok, DeviceDataList} = iot_device:query(DevicePid, Tags, StartTs, StopTs, Limit),
-                    DataItems = lists:map(fun(#device_data{tags = Tags, val = Val, timestamp = Timestamp}) ->
-                        #{<<"tags">> => Tags, <<"val">> => Val, <<"timestamp">> => Timestamp}
+                    DataItems = lists:map(fun(#device_data{tags = Tags0, val = Val, timestamp = Timestamp}) ->
+                        #{<<"tags">> => Tags0, <<"val">> => Val, <<"timestamp">> => Timestamp}
                                           end, DeviceDataList),
                     {ok, 200, iot_util:json_data(DataItems)};
                 false ->
@@ -91,4 +91,4 @@ handle_request("POST", "/device/query", _, Params = #{<<"device_uuid">> := Devic
 
 handle_request(_, Path, _, _) ->
     Path1 = list_to_binary(Path),
-    {ok, 200, iot_util:json_error(-1, <<"url: ", Path1/binary, " not found">>)}.
\ No newline at end of file
+    {ok, 200, iot_util:json_error(-1, <<"url: ", Path1/binary, " not found">>)}.
diff --git a/apps/iot/src/iot_device.erl b/apps/iot/src/iot_device.erl
index 08debcf..f6ed8d6 100644
--- a/apps/iot/src/iot_device.erl
+++ b/apps/iot/src/iot_device.erl
@@ -50,7 +50,7 @@
 %   "timestamp": int
 %}
 %],
--spec serialize(FieldsList :: [map()]) -> [Val :: binary()].
+-spec serialize(FieldsList :: [map()]) -> [Val :: map()].
 serialize(FieldsList) when is_list(FieldsList) ->
     lists:flatmap(fun serialize0/1, FieldsList).
 serialize0(Fields = #{<<"key">> := Key}) when is_binary(Key) andalso Key /= <<>> ->