feat: red flush

api_v1/views/business/purchase/views.py

@@ -53,10 +53,14 @@ class PurchaseOrderSerializer(serializers.ModelSerializer):
             'id', 'human_id', 'supplier', 'supplier_name', 'purchase_date', 'kind',
             'total_amount', 'diff_quantity', 'total_quantity',
             'operator', 'operator_name', 'warehouse', 'warehouse_name',
-            'status', 'remarks', 'created_at', 'updated_at', 'items',
-            'quantity_of_rolls',
+            'status', 'is_red_flushed', 'red_flush_id', 'red_flushed_at',
+            'remarks', 'created_at', 'updated_at', 'items', 'quantity_of_rolls',
+        ]
+        read_only_fields = [
+            'id', 'created_at', 'updated_at', 'items', 'supplier_name',
+            'operator_name', 'warehouse_name', 'is_red_flushed',
+            'red_flush_id', 'red_flushed_at',
         ]
-        read_only_fields = ['id', 'created_at', 'updated_at', 'items', 'supplier_name', 'operator_name', 'warehouse_name']
 
 
 class PurchaseOrderPagination(pagination.LimitOffsetPagination):
@@ -258,6 +262,46 @@ class PurchaseOrderReviewView(StockChangeViewMixin, views.APIView):
         return Response(PurchaseOrderSerializer(refreshed_order).data, status=status.HTTP_200_OK)
 
 
+class PurchaseOrderRedFlushSerializer(serializers.Serializer):
+    reason = serializers.CharField(required=True, allow_blank=False, trim_whitespace=True)
+
+
+class PurchaseOrderRedFlushView(StockChangeViewMixin, views.APIView):
+    """采购单红冲"""
+
+    permission_classes = [IsAuthenticated]
+
+    def post(self, request, pk: int):
+        if not self.check_employee_permission(request):
+            return self.permission_error_response('无权限访问')
+
+        merchant = request.user.employee.merchant
+        try:
+            purchase_order = business_models.PurchaseOrder.objects.select_related(
+                'supplier', 'operator', 'warehouse'
+            ).prefetch_related('items').get(id=pk, merchant=merchant)
+        except business_models.PurchaseOrder.DoesNotExist:
+            return self.not_found_response('采购单不存在')
+
+        serializer = PurchaseOrderRedFlushSerializer(data=request.data or {})
+        serializer.is_valid(raise_exception=True)
+
+        try:
+            red_flushed_order = business_services.red_flush_purchase_order(
+                merchant=merchant,
+                purchase_order=purchase_order,
+                red_flushed_by=request.user,
+                reason=serializer.validated_data['reason'],
+            )
+        except ValueError as exc:
+            return Response({'error': str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+
+        refreshed_order = business_models.PurchaseOrder.objects.select_related(
+            'supplier', 'operator', 'warehouse'
+        ).prefetch_related('items').get(id=red_flushed_order.id)
+        return Response(PurchaseOrderSerializer(refreshed_order).data, status=status.HTTP_200_OK)
+
+
 class PurchaseOrderBindStockChangeSerializer(serializers.Serializer):
     stock_change_record_id = serializers.IntegerField(min_value=1)
 
@@ -300,4 +344,3 @@ class PurchaseOrderBindStockChangeView(StockChangeViewMixin, views.APIView):
             },
             status=status.HTTP_200_OK,
         )
-