fix: pre_info可为空

apps/wpm/models.py

@@ -614,7 +614,6 @@ class Mlogbw(BaseModel):
     mlogbw_from = models.ForeignKey("self", verbose_name='来源个', on_delete=models.CASCADE, null=True, blank=True, related_name="w_mlogbw_from")
     wpr = models.ForeignKey("wpmw.wpr", verbose_name='关联产品', on_delete=models.SET_NULL
                             , related_name='wpr_mlogbw', null=True, blank=True)
-    pre_info = models.JSONField('预处理信息', default=dict, blank=True)
     equip = models.ForeignKey(Equipment, verbose_name='设备', on_delete=models.SET_NULL, null=True, blank=True, related_name='mlogbw_equip')
     tooling = models.ForeignKey(Equipment, verbose_name='工装', on_delete=models.SET_NULL, null=True, blank=True, related_name='mlogbw_tooling')
     work_start_time = models.DateTimeField('开始加工时间', null=True, blank=True)

apps/wpmw/migrations/0011_alter_wpr_pre_info.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.27 on 2026-05-28 03:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wpmw', '0010_wpr_pre_info'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='wpr',
+            name='pre_info',
+            field=models.JSONField(blank=True, default=dict, null=True, verbose_name='预处理信息'),
+        ),
+    ]

apps/wpmw/models.py

@@ -30,7 +30,7 @@ class Wpr(BaseModel):
     oinfo = models.JSONField(verbose_name="其他信息", default=dict, blank=True)
     wpr_from = models.ForeignKey("self", verbose_name="来源于", on_delete=models.CASCADE, null=True, blank=True)
     data = models.JSONField(verbose_name="数据", default=dict, blank=True)
-    pre_info = models.JSONField(verbose_name="预处理信息", default=dict, blank=True)
+    pre_info = models.JSONField(verbose_name="预处理信息", default=dict, blank=True, null=True)
 
     @classmethod
     def change_or_new(cls, wpr=None, number=None, mb=None, wm=None, old_mb=None, old_wm=None, ftest=None, wpr_from=None, add_version=True, number_out=None):

apps/wpmw/views.py

@@ -157,7 +157,7 @@ class WprViewSet(BulkUpdateModelMixin, CustomListModelMixin, CustomRetrieveModel
         sr.is_valid(raise_exception=True)
         raw_info = sr.validated_data
         from apps.utils.tools import update_dict
-        wpr.pre_info = update_dict(wpr.pre_info, raw_info)
+        wpr.pre_info = update_dict(wpr.pre_info or {}, raw_info)
         wpr.save(update_fields=["pre_info"])
         return Response({"pre_info": wpr.pre_info})