feat: shipment change && version modelize

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, Subquery
+from django.db.models import CharField, Exists, F, 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
@@ -38,6 +38,23 @@ from .serializers import (
 from .mixins import CustomerVisibilityFilterMixin
 
 
+class PrintingOrderOrderingFilter(filters.OrderingFilter):
+    def filter_queryset(self, request, queryset, view):
+        ordering = self.get_ordering(request, queryset, view)
+        if not ordering:
+            return queryset
+
+        expressions = []
+        for field in ordering:
+            if field == "kd_riqi":
+                expressions.append(F("kd_riqi").asc(nulls_last=True))
+            elif field == "-kd_riqi":
+                expressions.append(F("kd_riqi").desc(nulls_last=True))
+            else:
+                expressions.append(field)
+        return queryset.order_by(*expressions)
+
+
 class IsPrintingFactory(BasePermission):
     """自定义权限类，允许印染工厂用户访问"""
 
@@ -276,7 +293,7 @@ class PrintingOrderViewSet(CustomerVisibilityFilterMixin, LimitedModelViewSet):
     filter_backends = [
         DjangoFilterBackend,
         filters.SearchFilter,
-        filters.OrderingFilter,
+        PrintingOrderOrderingFilter,
     ]
     filterset_class = PrintingOrderFilterSet
     search_fields = ["customer__name", "fabric", "area", "craft", "description"]