feat: added plate order clone

api_v1/views/printing/test_plate_order_api.py

@@ -2,6 +2,7 @@
 PlateOrder API 测试
 """
 from django.core.files.uploadedfile import SimpleUploadedFile
+from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
 from rest_framework.test import APIClient
 from rest_framework import status
@@ -294,6 +295,35 @@ class PlateOrderAPITestCase(TestCase):
         results = response.data['results'] if isinstance(response.data, dict) else response.data
         self.assertEqual(results[0]['design_code'], str(results[0]['id']))
 
+    def test_plate_order_list_includes_content_type_id(self):
+        """列表接口应包含 content_type_id（来源 business_object.content_type_id）"""
+        process = stateflow_models.Process.objects.create(name='P-ct')
+        ct = ContentType.objects.get_for_model(stateflow_models.Process)
+
+        bo = stateflow_models.BusinessObject.objects.create(
+            name='BO-ct',
+            process=process,
+            content_type=ct,
+            object_id=123,
+        )
+        plate_order = printing_models.PlateOrder.objects.create(
+            customer=self.customer,
+            design_code='DESIGN-CT',
+            plate_type='圆网',
+            style_name='款式-ct',
+            fabric='棉布',
+            process=process.id,
+            business_object=bo,
+        )
+
+        response = self.client.get('/api/v1/plate-orders/')
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        results = response.data['results'] if isinstance(response.data, dict) else response.data
+
+        target = next(item for item in results if item['id'] == plate_order.id)
+        self.assertIn('content_type_id', target)
+        self.assertEqual(target['content_type_id'], ct.id)
+
     def test_fabric_source_field_in_detail(self):
         """验证布料来源字段在返回中存在"""
         plate_order = printing_models.PlateOrder.objects.create(
@@ -687,6 +717,12 @@ class PlateOrderAPITestCase(TestCase):
         
         self.assertIsNotNone(plate_order.business_object)
         self.assertEqual(plate_order.business_object.process.id, self.process.id)
+        # 新逻辑：BusinessObject 绑定回 PlateOrder
+        self.assertEqual(
+            plate_order.business_object.content_type_id,
+            ContentType.objects.get_for_model(printing_models.PlateOrder).id
+        )
+        self.assertEqual(plate_order.business_object.object_id, plate_order.id)
     
     def test_advance_to_next_state(self):
         """测试推进到下一个状态"""