feat: 调整wpmw允许编号重复

apps/wpmw/migrations/0005_wpr_wpr_from.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.12 on 2025-03-14 01:02
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wpmw', '0004_auto_20250312_1610'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='wpr',
+            name='wpr_from',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='wpmw.wpr', verbose_name='来源于'),
+        ),
+    ]

apps/wpmw/models.py

@@ -22,6 +22,7 @@ class Wpr(BaseModel):
     mb = models.ForeignKey("inm.materialbatch", verbose_name="仓库物料", on_delete=models.CASCADE, null=True, blank=True)
     wm = models.ForeignKey("wpm.wmaterial", verbose_name="车间物料", on_delete=models.CASCADE, null=True, blank=True)
     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)
 
     @classmethod
     def change_or_new(cls, wpr=None, number=None, mb=None, wm=None, old_mb=None, old_wm=None, ftest=None):
@@ -36,17 +37,20 @@ class Wpr(BaseModel):
                 wpr.delete()
                 return
         elif number:
+            wpr_from = None
             try:
-                if wm:
-                    ins = cls.objects.get(number=number, wm__material=wm.material)
-                elif mb:
-                    ins = cls.objects.get(number=number, mb__material=mb.material)
+                ins = cls.objects.get(number=number)
+                if ins.wm is None and ins.mb is None: 
+                    if ins.version > 1: # 说明被复用了
+                        wpr_from = ins
+                    else:
+                        raise ParseError(f"该物料编号{number}-已存在不可使用")
                 else:
-                    raise ParseError(f"该物料编号{number}-请指定ID")
-                raise ParseError(f"该物料编号{number}-已存在不可使用")
+                    raise ParseError(f"该物料编号{number}-已存在不可使用")
             except cls.DoesNotExist:
                 ins = cls(number=number)
-                ins.version = 0
+                ins.wpr_from = wpr_from
+                ins.version = -1
 
         if old_mb and ins.mb != old_mb:
             raise ParseError(f"请检查-{ins.number}-所属仓库批次")