feat: salesitem can change/soft delete

shipment/migrations/0018_salesitem_soft_delete_fields.py

@@ -0,0 +1,40 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("shipment", "0017_salesitemchangerecord"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="salesitem",
+            name="delete_at",
+            field=models.DateTimeField(blank=True, null=True, verbose_name="删除时间"),
+        ),
+        migrations.AddField(
+            model_name="salesitem",
+            name="delete_by",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="deleted_sales_items",
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="删除人",
+            ),
+        ),
+        migrations.AlterModelOptions(
+            name="salesitem",
+            options={
+                "ordering": ["id"],
+                "permissions": [("soft_delete_salesitem", "Can soft delete sales item")],
+                "verbose_name": "销售品",
+                "verbose_name_plural": "销售品",
+            },
+        ),
+    ]