fix(bridge): replace prepare_statement by sql_template

apps/emqx_connector/src/emqx_connector_mysql.erl

@@ -111,7 +111,7 @@ on_start(
         {pool_size, PoolSize}
     ],
     PoolName = emqx_plugin_libs_pool:pool_name(InstId),
-    Prepares = parse_prepare_sql(maps:get(prepare_statement, Config, #{})),
+    Prepares = parse_prepare_sql(Config),
     State = maps:merge(#{poolname => PoolName, auto_reconnect => AutoReconn}, Prepares),
     case emqx_plugin_libs_pool:start_pool(PoolName, ?MODULE, Options ++ SslOpts) of
         ok -> {ok, init_prepare(State)};
@@ -303,7 +303,19 @@ prepare_sql_to_conn(Conn, [{Key, SQL} | PrepareList]) when is_pid(Conn) ->
 unprepare_sql_to_conn(Conn, PrepareSqlKey) ->
     mysql:unprepare(Conn, PrepareSqlKey).
 
-parse_prepare_sql(SQL) ->
+parse_prepare_sql(Config) ->
+    SQL =
+        case maps:get(prepare_statement, Config, undefined) of
+            undefined ->
+                case emqx_map_lib:deep_get([egress, sql_template], Config, undefined) of
+                    undefined ->
+                        #{};
+                    Template ->
+                        #{send_message => Template}
+                end;
+            Any ->
+                Any
+        end,
     parse_prepare_sql(maps:to_list(SQL), #{}, #{}).
 
 parse_prepare_sql([{Key, H} | T], SQL, Tokens) ->

lib-ee/emqx_ee_bridge/i18n/emqx_ee_bridge_mysql.conf

@@ -1,5 +1,5 @@
 emqx_ee_bridge_mysql {
-    sql {
+    sql_template {
         desc {
             en: """SQL Template"""
             zh: """SQL 模板"""

lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mysql.erl

@@ -44,14 +44,14 @@ values(post) ->
     #{
         type => mysql,
         name => <<"mysql">>,
+        sql_template => ?DEFAULT_SQL,
         connector => #{
             server => <<"127.0.0.1:3306">>,
             database => <<"test">>,
             pool_size => 8,
             username => <<"root">>,
             password => <<"public">>,
-            auto_reconnect => true,
-            prepare_statement => #{send_message => ?DEFAULT_SQL}
+            auto_reconnect => true
         },
         enable => true,
         direction => egress
@@ -69,6 +69,7 @@ fields("config") ->
     [
         {enable, mk(boolean(), #{desc => ?DESC("config_enable"), default => true})},
         {direction, mk(egress, #{desc => ?DESC("config_direction"), default => egress})},
+        {sql_template, mk(binary(), #{desc => ?DESC("sql_template"), default => ?DEFAULT_SQL})},
         {connector,
             mk(
                 ref(?MODULE, connector),
@@ -85,8 +86,7 @@ fields("put") ->
 fields("get") ->
     emqx_bridge_schema:metrics_status_fields() ++ fields("post");
 fields(connector) ->
-    (emqx_connector_mysql:fields(config) --
-        emqx_connector_schema_lib:prepare_statement_fields()) ++ prepare_statement_fields().
+    emqx_connector_mysql:fields(config) -- emqx_connector_schema_lib:prepare_statement_fields().
 
 desc("config") ->
     ?DESC("desc_config");
@@ -104,13 +104,3 @@ type_field() ->
 
 name_field() ->
     {name, mk(binary(), #{required => true, desc => ?DESC("desc_name")})}.
-
-prepare_statement_fields() ->
-    [
-        {prepare_statement,
-            mk(map(), #{
-                desc => ?DESC(emqx_connector_schema_lib, prepare_statement),
-                default => #{<<"send_message">> => ?DEFAULT_SQL},
-                example => #{<<"send_message">> => ?DEFAULT_SQL}
-            })}
-    ].