121 lines
4.5 KiB
Erlang
121 lines
4.5 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% @author aresei
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%%% @copyright (C) 2023, <COMPANY>
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%%% @doc
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%%%
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%%% @end
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%%% Created : 04. 7月 2023 12:31
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%%%-------------------------------------------------------------------
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-module(service_config_model).
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-author("aresei").
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-include("iot_tables.hrl").
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-include_lib("stdlib/include/qlc.hrl").
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-define(TAB, service_config).
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%% API
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-export([create_table/0]).
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-export([insert/4, update/4, get_config/1, delete/1]).
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-export([as_map/1]).
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create_table() ->
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%% id生成器
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mnesia:create_table(service_config, [
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{attributes, record_info(fields, service_config)},
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{record_name, service_config},
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{disc_copies, [node()]},
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{type, ordered_set}
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]).
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-spec insert(ServiceId :: binary(), HostUUID :: binary(), ConfigJson :: binary(), LastEditUser :: integer()) -> ok | {error, Reason :: term()}.
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insert(ServiceId, HostUUID, ConfigJson, LastEditUser) when is_binary(ServiceId), is_binary(HostUUID), is_binary(ConfigJson), is_integer(LastEditUser) ->
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ServiceConfig = #service_config{
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service_id = ServiceId,
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host_uuid = HostUUID,
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config_json = ConfigJson,
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last_config_json = <<>>,
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last_edit_user = LastEditUser,
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create_ts = iot_util:current_time(),
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update_ts = iot_util:current_time()
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},
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case mnesia:transaction(fun() -> mnesia:write(?TAB, ServiceConfig, write) end) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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-spec update(ServiceId :: binary(), HostUUID :: binary(), ConfigJson :: binary(), LastEditUser :: integer()) -> ok | {error, Reason :: term()}.
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update(ServiceId, HostUUID, ConfigJson, LastEditUser) when is_binary(ServiceId), is_binary(HostUUID), is_binary(ConfigJson), is_integer(LastEditUser) ->
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Fun = fun() ->
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case mnesia:read(?TAB, ServiceId, write) of
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[] ->
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ServiceConfig = #service_config{
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service_id = ServiceId,
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host_uuid = HostUUID,
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config_json = ConfigJson,
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last_config_json = <<>>,
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last_edit_user = LastEditUser,
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create_ts = iot_util:current_time(),
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update_ts = iot_util:current_time()
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},
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mnesia:write(?TAB, ServiceConfig, write);
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[ServiceConfig0 = #service_config{config_json = OldConfigJson}] ->
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NServiceConfig = ServiceConfig0#service_config{
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config_json = ConfigJson,
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last_config_json = OldConfigJson,
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last_edit_user = LastEditUser,
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update_ts = iot_util:current_time()
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},
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mnesia:write(?TAB, NServiceConfig, write)
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end
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end,
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case mnesia:transaction(Fun) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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-spec get_config(ServiceId :: any()) -> error | {ok, Config :: #service_config{}}.
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get_config(ServiceId) when is_binary(ServiceId) ->
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case mnesia:dirty_read(?TAB, ServiceId) of
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[] ->
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error;
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[Config] ->
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{ok, Config}
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end.
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-spec delete(ServiceId :: binary()) -> ok | {error, Reason :: any()}.
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delete(ServiceId) when is_binary(ServiceId) ->
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Fun = fun() ->
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case mnesia:read(?TAB, ServiceId, write) of
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[] ->
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ok;
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[ServiceConfig0 = #service_config{config_json = OldConfigJson}] ->
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NServiceConfig = ServiceConfig0#service_config{
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config_json = <<"">>,
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last_config_json = OldConfigJson,
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update_ts = iot_util:current_time()
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},
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mnesia:write(?TAB, NServiceConfig, write)
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end
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end,
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case mnesia:transaction(Fun) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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-spec as_map(ServiceConfig :: #service_config{}) -> map().
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as_map(#service_config{service_id = ServiceId, config_json = ConfigJson, last_config_json = LastConfigJson, last_edit_user = LastEditUser, update_ts = UpdateTs, create_ts = CreateTs}) ->
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#{
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<<"service_id">> => ServiceId,
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<<"config_json">> => ConfigJson,
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<<"last_config_json">> => LastConfigJson,
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<<"last_edit_user">> => LastEditUser,
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<<"update_ts">> => UpdateTs,
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<<"create_ts">> => CreateTs
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}. |