feat: added area field into shipments model

shipment/migrations/0008_add_area_to_shipment.py

@@ -0,0 +1,17 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shipment', '0007_add_remark_to_external_finished_product'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='shipment',
+            name='area',
+            field=models.CharField(blank=True, default='', help_text='出货地区（可空字符串）', max_length=30, verbose_name='地区'),
+        ),
+    ]
+

shipment/models.py

@@ -127,6 +127,14 @@ class Shipment(ModelBase):
         verbose_name='出货日期',
         help_text='实际出货日期'
     )
+
+    area = models.CharField(
+        max_length=30,
+        blank=True,
+        default='',
+        verbose_name='地区',
+        help_text='出货地区（可空字符串）',
+    )
     
     remark = models.TextField(
         blank=True,

shipment/services.py

@@ -49,6 +49,7 @@ def create_shipment(
     sales_item_ids: List[int],
     created_by,
     remark: str = '',
+    area: str = '',
 ) -> Shipment:
     """
     创建出货单并关联销售品
@@ -104,6 +105,7 @@ def create_shipment(
         merchant=merchant,
         customer=customer,
         shipment_date=shipment_date,
+        area=(area or '').strip(),
         remark=remark,
         created_by=created_by,
     )
@@ -125,6 +127,7 @@ def create_external_shipment(
     external_finished_products: List[dict],
     created_by,
     remark: str = '',
+    area: str = '',
 ) -> Shipment:
     """
     创建出货单（external 版），并批量写入外部成品表并关联到出货单。
@@ -160,6 +163,7 @@ def create_external_shipment(
         merchant=merchant,
         customer=customer,
         shipment_date=shipment_date,
+        area=(area or '').strip(),
         remark=remark,
         created_by=created_by,
         external_id=external_id,