feat: red flush and cost

api_v1/views/printing/views.py

@@ -10,7 +10,7 @@ from rest_framework.permissions import BasePermission
 from rest_framework.permissions import DjangoModelPermissions
 from rest_framework.parsers import MultiPartParser, FormParser, JSONParser
 from django.core.exceptions import ValidationError
-from django.db.models import CharField, Exists, OuterRef, Prefetch
+from django.db.models import CharField, Exists, OuterRef, Prefetch, Subquery
 from django.db.models.functions import Cast, Coalesce
 from django.views.decorators.cache import cache_page
 from django.views.decorators.http import condition
@@ -1065,13 +1065,14 @@ class PlateOrderViewSet(CustomerVisibilityFilterMixin, LimitedModelViewSet):
     def get_serializer_class(self):
         """根据动作选择序列化器"""
         from .serializers import (
+            PlateOrderKanbanListSerializer,
             PlateOrderListSerializer,
             PlateOrderDetailSerializer,
             PlateOrderCreateUpdateSerializer,
         )
 
         if self.action == "list":
-            return PlateOrderListSerializer
+            return PlateOrderKanbanListSerializer
         elif self.action in ["create", "update", "partial_update"]:
             return PlateOrderCreateUpdateSerializer
         else:  # retrieve
@@ -1092,13 +1093,24 @@ class PlateOrderViewSet(CustomerVisibilityFilterMixin, LimitedModelViewSet):
 
         if self.action in ["list", "retrieve"]:
             queryset = queryset.select_related(
-                "customer", "salesperson", "merchandiser", "business_object"
+                "customer",
+                "salesperson",
+                "merchandiser",
+                "business_object",
+                "created_by__employee",
             )
-        # 为搜索提供 design_code 的兜底（为空时使用主键字符串）
+
+        # 预取流程名称（process 是 IntegerField 非外键，用 Subquery 避免 N+1）
+        from stateflow.models import Process
+
         queryset = queryset.annotate(
             design_code_normalized=Coalesce(
                 "design_code", Cast("id", output_field=CharField())
-            )
+            ),
+            annotated_process_name=Subquery(
+                Process.objects.filter(id=OuterRef("process")).values("name")[:1],
+                output_field=CharField(),
+            ),
         )
         return queryset