feat: salesitem can change/soft delete

shipment/migrations/0017_salesitemchangerecord.py

@@ -0,0 +1,59 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("shipment", "0016_shipmentdelivery_contact_phone_and_vehicle_capacity"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="SalesItemChangeRecord",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created_at", models.DateTimeField(auto_now_add=True, verbose_name="创建时间")),
+                ("updated_at", models.DateTimeField(auto_now=True, verbose_name="更新时间")),
+                ("operated_at", models.DateTimeField(verbose_name="操作时间")),
+                ("before_values", models.JSONField(blank=True, default=dict, verbose_name="修改前的值")),
+                ("after_values", models.JSONField(blank=True, default=dict, verbose_name="修改目标值")),
+                (
+                    "operator",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        related_name="sales_item_change_records",
+                        to=settings.AUTH_USER_MODEL,
+                        verbose_name="操作者",
+                    ),
+                ),
+                (
+                    "sales_item",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="change_records",
+                        to="shipment.salesitem",
+                        verbose_name="销售品",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "销售品修改记录",
+                "verbose_name_plural": "销售品修改记录",
+                "db_table": "sales_item_change_record",
+                "ordering": ["-operated_at", "-id"],
+            },
+        ),
+    ]