feed_edit: init list

module/backend/feed_service.go

@@ -579,10 +579,16 @@ func (s *StoreEntry) EditRecodeFeedFormula(ctx context.Context, req *operationPb
 }
 
 func (s *StoreEntry) FeedFormulaDetailList(ctx context.Context, req *operationPb.FeedFormulaDetailRequest) (*operationPb.FeedFormulaDetailResponse, error) {
+	res := &operationPb.FeedFormulaDetailResponse{
+		Code: http.StatusOK,
+		Msg:  "ok",
+		Data: make([]*operationPb.AddFeedFormulaDetail, 0),
+	}
 	feedFormula, err := s.SearchFeedFormulaById(ctx, int64(req.FeedFormulaId))
 	if err != nil {
 		return nil, xerr.WithStack(err)
 	}
+
 	feedFormulaId := feedFormula.Id
 	if feedFormula.PastureDataId > 0 {
 		feedFormulaId = feedFormula.PastureDataId
@@ -593,11 +599,8 @@ func (s *StoreEntry) FeedFormulaDetailList(ctx context.Context, req *operationPb
 		return nil, xerr.WithStack(err)
 	}
 
-	return &operationPb.FeedFormulaDetailResponse{
-		Code: http.StatusOK,
-		Msg:  "ok",
-		Data: model.FeedFormulaDetailSlice(list).ToPB(),
-	}, nil
+	res.Data = model.FeedFormulaDetailSlice(list).ToPB()
+	return res, nil
 }
 
 // FeedFormulaUsage 配方使用概况