fix: added name filter for api_man apis, fixed plate_orders search exclude id (only search via design_code)

api_v1/views/printing/views.py

@@ -8,6 +8,8 @@ from rest_framework.permissions import BasePermission
 from rest_framework.pagination import LimitOffsetPagination
 from rest_framework.permissions import DjangoModelPermissions
 from rest_framework.parsers import MultiPartParser, FormParser, JSONParser
+from django.db.models import CharField
+from django.db.models.functions import Cast, Coalesce
 from django_filters.rest_framework import DjangoFilterBackend
 from django_filters import rest_framework as django_filters
 from django_filters import IsoDateTimeFilter
@@ -590,7 +592,8 @@ class PlateOrderViewSet(viewsets.ModelViewSet):
     pagination_class = LimitOffsetPagination
     filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
     filterset_class = PlateOrderFilterSet
-    search_fields = ['design_code', 'style_name', 'customer__name', 'fabric']
+    # design_code_normalized: 当 design_code 为空时用 id 兜底，便于搜索数字编号
+    search_fields = ['design_code', 'design_code_normalized', 'style_name', 'customer__name', 'fabric']
     ordering_fields = [
         'id', 'created_at', 'updated_at', 'plate_date', 
         'required_completion_date', 'completion_date',
@@ -618,6 +621,10 @@ class PlateOrderViewSet(viewsets.ModelViewSet):
         queryset = super().get_queryset()
         if self.action in ['list', 'retrieve']:
             queryset = queryset.select_related('customer', 'salesperson', 'merchandiser', 'business_object')
+        # 为搜索提供 design_code 的兜底（为空时使用主键字符串）
+        queryset = queryset.annotate(
+            design_code_normalized=Coalesce('design_code', Cast('id', output_field=CharField()))
+        )
         return queryset
     
     def destroy(self, request, *args, **kwargs):