fix: moved order_quantity to sales_order_item

business/admin.py

@@ -127,7 +127,7 @@ class SalesReturnOrderItemAdmin(admin.ModelAdmin):
 
 @admin.register(models.SalesOrder)
 class SalesOrderAdmin(admin.ModelAdmin):
-    list_display = ('id', 'human_id', 'customer', 'sales_date', 'operator', 'status', 'order_quantity', '_total_amount', '_diff_quantity', '_total_quantity', 'created_at')
+    list_display = ('id', 'human_id', 'customer', 'sales_date', 'operator', 'status', '_total_amount', '_diff_quantity', '_total_quantity', 'created_at')
     search_fields = ('customer__name',)
     list_filter = ('operator', 'warehouse', 'status', 'created_at')
     ordering = ('-created_at',)

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'),
+        ),
+    ]

business/models.py

@@ -263,7 +263,6 @@ class SalesOrder(OrderItemsAggregationMixin, OrderDirectionMixin, OrderCounterpa
         default=SalesOrderStatusEnum.PENDING,
         verbose_name='状态',
     )
-    order_quantity = models.IntegerField(null=True, blank=True, verbose_name='下单数量')
     remarks = models.TextField(blank=True, null=True, verbose_name='备注')
 
     def __str__(self):
@@ -339,6 +338,7 @@ class SalesOrderItem(ModelBase):
         verbose_name='消耗入库明细ID列表',
     )
     batch_number = models.CharField(null=True, blank=True, max_length=100, verbose_name='批次号')
+    order_quantity = models.IntegerField(null=True, blank=True, verbose_name='下单数量')
     remarks = models.TextField(blank=True, null=True, verbose_name='备注')
 
     class Meta: