feat:额外收费

lib/common/utils/json/json_tool.dart

@@ -56,4 +56,22 @@ abstract class JsonTool {
     if (value == null) return null;
     return value.toString();
   }
+
+  static DiscountsType? stringToDiscountsType(String? value) {
+    return DiscountsType.values.fromCode(value);
+  }
+
+  static String? discountsTypeToString(DiscountsType? value) {
+    if (value == null) return null;
+    return value.toString();
+  }
+
+  static ProductHourType? stringToProductHourType(String? value) {
+    return ProductHourType.values.fromCode(value);
+  }
+
+  static String? productHourTypeToString(ProductHourType? value) {
+    if (value == null) return null;
+    return value.toString();
+  }
 }