fix: binding merchant and employee at admin site

printing/views.py

@@ -16,6 +16,9 @@ from printing.serializers import (
     PrintingOrderListSerializer,
     PrintingOrderDetailSerializer,
     PrintingOrderCreateUpdateSerializer,
+    PrintingJobListSerializer,
+    PrintingJobDetailSerializer,
+    PrintingJobCreateUpdateSerializer,
 )
 
 
@@ -225,3 +228,76 @@ class PrintingOrderViewSet(viewsets.ModelViewSet):
             'detail': '已标记布料已收',
             'data': serializer.data
         })
+
+
+class PrintingJobFilterSet(django_filters.FilterSet):
+    """印染款式明细过滤器"""
+    printing_order = django_filters.NumberFilter()
+    product = django_filters.NumberFilter()
+    product_name = django_filters.CharFilter(field_name='product__name', lookup_expr='icontains')
+    unit = django_filters.CharFilter(lookup_expr='icontains')
+    quantity_min = django_filters.NumberFilter(field_name='quantity', lookup_expr='gte')
+    quantity_max = django_filters.NumberFilter(field_name='quantity', lookup_expr='lte')
+    pieces_min = django_filters.NumberFilter(field_name='pieces', lookup_expr='gte')
+    pieces_max = django_filters.NumberFilter(field_name='pieces', lookup_expr='lte')
+    
+    class Meta:
+        model = models.PrintingJob
+        fields = ['printing_order', 'product']
+
+
+class PrintingJobViewSet(viewsets.ModelViewSet):
+    """
+    印染款式明细 ViewSet
+    
+    提供印染款式明细的增改查功能（不支持删除）
+    
+    list: 获取款式明细列表
+    retrieve: 获取款式明细详情
+    create: 创建款式明细
+    update: 更新款式明细
+    partial_update: 部分更新款式明细
+    
+    查询参数:
+    - printing_order: 印染订单ID
+    - product: 产品ID
+    - product_name: 产品名称（模糊查询）
+    - unit: 单位（模糊查询）
+    - quantity_min: 最小数量
+    - quantity_max: 最大数量
+    - pieces_min: 最小件数
+    - pieces_max: 最大件数
+    - search: 全文搜索（产品名称、单位、尺寸、备注）
+    - ordering: 排序字段
+    """
+    queryset = models.PrintingJob.objects.all()
+    permission_classes = [DjangoModelPermissions, IsPrintingFactory]
+    pagination_class = LimitOffsetPagination
+    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
+    filterset_class = PrintingJobFilterSet
+    search_fields = ['product__name', 'unit', 'size', 'description']
+    ordering_fields = ['id', 'created_at', 'updated_at', 'quantity', 'pieces']
+    ordering = ['-created_at']
+    
+    def get_serializer_class(self):
+        """根据动作选择序列化器"""
+        if self.action == 'list':
+            return PrintingJobListSerializer
+        elif self.action in ['create', 'update', 'partial_update']:
+            return PrintingJobCreateUpdateSerializer
+        else:  # retrieve
+            return PrintingJobDetailSerializer
+    
+    def get_queryset(self):
+        """优化查询"""
+        queryset = super().get_queryset()
+        if self.action in ['list', 'retrieve']:
+            queryset = queryset.select_related('printing_order', 'product')
+        return queryset
+    
+    def destroy(self, request, *args, **kwargs):
+        """禁用删除操作"""
+        return Response(
+            {'detail': '印染款式明细不支持删除操作'},
+            status=status.HTTP_405_METHOD_NOT_ALLOWED
+        )