fix: load less from database on mqtt publish

src/models/relay.c

@@ -383,22 +383,6 @@ relay_get_by_id(int id)
     return result;
 }
 
-relay_t*
-relay_get_by_uid(uuid_t uid)
-{
-    sqlite3_stmt *stmt;
-
-    sqlite3_prepare_v2(global_database, "SELECT * FROM relays WHERE uid = ?1;", -1, &stmt, NULL);
-    sqlite3_bind_blob(stmt, 1, uid, sizeof(uuid_t), SQLITE_STATIC);
-
-    relay_t **sql_result = relay_db_select(stmt);
-
-    relay_t *result = sql_result[0];
-    free(sql_result);
-
-    return result;
-}
-
 relay_t**
 relay_get_all()
 {
@@ -441,6 +425,19 @@ relay_get_for_controller(int controller_id, int relay_num)
 
 }
 
+int
+relay_get_id_for_controller(int controller_id, int relay_num)
+{
+    LOGGER_DEBUG("getting relay id [controller_id=%d, relay_num=%d] from database\n", controller_id, relay_num);
+    sqlite3_stmt *stmt;
+
+    sqlite3_prepare_v2(global_database, "SELECT id FROM relays WHERE controller_id = ?1 AND number = ?2;", -1, &stmt, NULL);
+    sqlite3_bind_int(stmt, 1, controller_id);
+    sqlite3_bind_int(stmt, 2, relay_num);
+
+    return database_helper_get_id(stmt);
+}
+
 relay_t**
 relay_get_by_controller_id(int controller_id)
 {