feat: added jobs_status_summary to printing orders api

api_v1/views/printing/serializers.py

@@ -137,6 +137,7 @@ class PrintingOrderListSerializer(serializers.ModelSerializer):
     customer_phone = serializers.CharField(source='customer.mobile', read_only=True)
     process_name = serializers.CharField(source='process.name', read_only=True)
     progress = serializers.IntegerField(read_only=True)
+    jobs_status_summary = serializers.SerializerMethodField()
     
     class Meta:
         model = models.PrintingOrder
@@ -145,10 +146,38 @@ class PrintingOrderListSerializer(serializers.ModelSerializer):
             'fabric', 'width', 'is_urgent', 'area', 'address', 'curve',
             'is_fabric_received', 'outgoing_date', 'is_invalid', 'new_curve',
             'process', 'process_name', 'progress', 'position', 'print_count',
+            'jobs_status_summary',
             'created_at', 'updated_at',
         ]
         read_only_fields = ['id', 'human_id', 'created_at', 'updated_at', 'progress', 'print_count']
 
+    def get_jobs_status_summary(self, obj):
+        """
+        返回订单下所有 PrintingJob 按当前状态分组的数量汇总
+        
+        返回格式: [{"state_name": "进度一", "state_id": 1, "count": 3}, ...]
+        - state_name: 状态名称（已完成的返回"已完成"）
+        - state_id: 状态ID（已完成的返回 None）
+        - count: 该状态下的 job 数量
+        """
+        # 使用预取的 printing_jobs（避免 N+1）
+        jobs = getattr(obj, '_prefetched_objects_cache', {}).get('printing_jobs') or obj.printing_jobs.all()
+        
+        from collections import Counter
+        status_counter = Counter()
+        
+        for job in jobs:
+            # 获取 job 的当前状态显示名称
+            status_name = job.status  # 调用 @property，返回状态名或"已完成"
+            status_id = job.status_id  # 状态ID，已完成时为 None
+            status_counter[(status_name, status_id)] += 1
+        
+        # 转换为列表格式
+        return [
+            {'state_name': name, 'state_id': sid, 'count': count}
+            for (name, sid), count in status_counter.items()
+        ]
+
 
 class PrintingOrderDetailSerializer(serializers.ModelSerializer):
     """印染订单详情序列化器"""