fix: moved order_quantity to sales_order_item

business/migrations/0021_remove_salesorder_order_quantity.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.2.7 on 2026-01-30 12:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('business', '0020_salesorder_order_quantity'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='salesorder',
+            name='order_quantity',
+        ),
+        migrations.AddField(
+            model_name='salesorderitem',
+            name='order_quantity',
+            field=models.IntegerField(blank=True, null=True, verbose_name='下单数量'),
+        ),
+    ]