feat: added plate order clone

printing/models.py

@@ -1,6 +1,7 @@
 from decimal import Decimal
 
 from django.conf import settings
+from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from flower.common import ModelBase
 from basic_info import models as basic_models
@@ -139,7 +140,11 @@ class PlateOrder(ModelBase):
                 
                 # 创建 BusinessObject
                 business_object = stateflow_models.BusinessObject.objects.create(
-                    process=process_obj
+                    name=f"PlateOrder-{self.id}",
+                    process=process_obj,
+                    description=f"开版订单 {self.id} 的流程实例",
+                    content_type=ContentType.objects.get_for_model(PlateOrder),
+                    object_id=self.id,
                 )
                 self.business_object = business_object
                 # 再次保存以更新 business_object 字段
@@ -403,3 +408,52 @@ class PrintingJob(ModelBase):
     class Meta:
         verbose_name = '印染款式明细'
         verbose_name_plural = '印染款式明细'
+
+
+class PrintingJobBatchAdvanceRecord(ModelBase):
+    """
+    印染任务批量推进记录（审计）
+
+    记录一次“对多个 PrintingJob 用同一组参数推进同一步流程节点”的行为：
+    - created_by/created_at：谁在何时做了批量推进
+    - parameters：本次推进提交的工艺参数（JSON）
+    - state：本次被“完成”的流程节点（即推进时的 next_pending_state）
+    - printing_jobs：本次批量推进涉及的所有明细
+    """
+
+    printing_order = models.ForeignKey(
+        PrintingOrder,
+        on_delete=models.PROTECT,
+        related_name='batch_advance_records',
+        verbose_name='印染订单',
+    )
+    state = models.ForeignKey(
+        stateflow_models.State,
+        on_delete=models.PROTECT,
+        related_name='printing_job_batch_advance_records',
+        verbose_name='完成的流程节点',
+    )
+    created_by = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name='printing_job_batch_advance_records',
+        verbose_name='创建人',
+    )
+    parameters = models.JSONField(
+        default=dict,
+        blank=True,
+        verbose_name='工艺参数',
+        help_text='批量推进时提交的参数（与单条推进一致）',
+    )
+    printing_jobs = models.ManyToManyField(
+        PrintingJob,
+        related_name='batch_advance_records',
+        verbose_name='印染明细',
+        blank=False,
+    )
+
+    class Meta:
+        verbose_name = '印染任务批量推进记录'
+        verbose_name_plural = '印染任务批量推进记录'