商品id查询活动列表

apps/brands/views.py

@@ -264,6 +264,46 @@ class CampaignViewSet(viewsets.ModelViewSet):
             return []
         return super().get_permissions()
     
+    @action(detail=False, methods=['get'], url_path='by-product')
+    def get_campaigns_by_product(self, request):
+        """获取与特定产品相关的活动列表"""
+        try:
+            product_id = request.query_params.get('product_id')
+            if not product_id:
+                return api_response(code=400, message="缺少必要参数：product_id", data=None)
+            
+            # 查询产品是否存在
+            from .models import Product
+            try:
+                product = Product.objects.get(id=product_id, is_active=True)
+            except Product.DoesNotExist:
+                return api_response(code=404, message=f"产品不存在: {product_id}", data=None)
+            
+            # 查询与该产品关联的所有活动
+            campaigns = Campaign.objects.filter(
+                link_product=product,
+                is_active=True
+            ).distinct()
+            
+            # 序列化活动数据
+            serializer = self.get_serializer(campaigns, many=True)
+            
+            return api_response(data={
+                'product': {
+                    'id': str(product.id),
+                    'name': product.name,
+                    'brand': product.brand.name if product.brand else None
+                },
+                'campaigns': serializer.data,
+                'total': campaigns.count()
+            })
+            
+        except Exception as e:
+            logger.error(f"获取产品相关活动列表失败: {str(e)}")
+            import traceback
+            logger.error(traceback.format_exc())
+            return api_response(code=500, message=f"获取产品相关活动列表失败: {str(e)}", data=None)
+    
     @action(detail=False, methods=['get'], url_path='token-info')
     def token_info(self, request):
         """获取当前用户的token信息和WebSocket URL示例"""