feat: transfer api for stock module

stock/migrations/0007_transferorder.py

@@ -0,0 +1,66 @@
+# Generated by Django 5.2.7 on 2025-12-02 00:00
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('basic_info', '0009_product_minimum_quantity'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('stock', '0006_remove_purchaseorder'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='TransferOrder',
+            fields=[
+                ('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')),
+                ('id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('mode', models.IntegerField(choices=[(1, '严进宽出'), (2, '严进严出'), (3, '宽进宽出')], verbose_name='调拨模式')),
+                ('transfer_date', models.DateField(verbose_name='调拨日期')),
+                ('status', models.IntegerField(choices=[(1, '待完成'), (2, '已完成'), (3, '已取消')], default=1, verbose_name='状态')),
+                ('remarks', models.TextField(blank=True, null=True, verbose_name='备注')),
+                ('request_id', models.CharField(blank=True, max_length=64, null=True, verbose_name='请求ID')),
+                ('created_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='created_transfer_orders', to=settings.AUTH_USER_MODEL, verbose_name='创建人')),
+                ('from_warehouse', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='outgoing_transfer_orders', to='basic_info.warehouse', verbose_name='调出仓')),
+                ('incoming_record', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='transfer_in_orders', to='stock.stockchangerecord', verbose_name='调入出入库记录')),
+                ('merchant', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='transfer_orders', to='basic_info.merchant', verbose_name='所属商户')),
+                ('operator', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='transfer_orders', to='basic_info.employee', verbose_name='经办人')),
+                ('outgoing_record', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='transfer_out_orders', to='stock.stockchangerecord', verbose_name='调出出入库记录')),
+                ('to_warehouse', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='incoming_transfer_orders', to='basic_info.warehouse', verbose_name='调入仓')),
+            ],
+            options={
+                'verbose_name': '调拨单',
+                'verbose_name_plural': '调拨单',
+            },
+        ),
+        migrations.CreateModel(
+            name='TransferOrderItem',
+            fields=[
+                ('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')),
+                ('id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('unit', models.IntegerField(choices=[(1, '米'), (2, '码'), (3, '公斤')], verbose_name='单位')),
+                ('total_quantity', models.DecimalField(decimal_places=2, max_digits=10, verbose_name='数量合计')),
+                ('num_of_rolls', models.PositiveIntegerField(default=1, verbose_name='匹数')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='transfer_order_items', to='basic_info.product', verbose_name='产品')),
+                ('transfer_order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='stock.transferorder', verbose_name='调拨单')),
+            ],
+            options={
+                'verbose_name': '调拨单明细',
+                'verbose_name_plural': '调拨单明细',
+            },
+        ),
+        migrations.AddConstraint(
+            model_name='transferorder',
+            constraint=models.UniqueConstraint(condition=models.Q(request_id__isnull=False), fields=('merchant', 'request_id'), name='unique_transfer_request_per_merchant'),
+        ),
+        migrations.AddConstraint(
+            model_name='transferorder',
+            constraint=models.CheckConstraint(check=~models.Q(from_warehouse=models.F('to_warehouse')), name='transfer_different_warehouses'),
+        ),
+    ]