feat: added pre sales order in business module, and explode tests of business module

business/migrations/0022_presalesorder_presalesorderitem.py

@@ -0,0 +1,56 @@
+# Generated by Django 5.2.7 on 2026-01-31 13:48
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('basic_info', '0024_frontend_page_and_visible_pages'),
+        ('business', '0021_remove_salesorder_order_quantity'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PreSalesOrder',
+            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)),
+                ('kind', models.IntegerField(choices=[(1, '大货'), (2, '样板')], default=1, verbose_name='预销售单类型')),
+                ('remarks', models.TextField(blank=True, null=True, verbose_name='备注')),
+                ('created_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='created_pre_sales_orders', to='basic_info.employee', verbose_name='创建者')),
+                ('customer', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='pre_sales_orders', to='basic_info.customer', verbose_name='客户')),
+                ('merchant', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='pre_sales_orders', to='basic_info.merchant', verbose_name='所属商户')),
+                ('warehouse', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='pre_sales_orders', to='basic_info.warehouse', verbose_name='仓库')),
+            ],
+            options={
+                'verbose_name': '预销售单',
+                'verbose_name_plural': '预销售单',
+            },
+        ),
+        migrations.CreateModel(
+            name='PreSalesOrderItem',
+            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)),
+                ('product_id', models.BigIntegerField(blank=True, null=True, verbose_name='产品ID')),
+                ('product_name', models.CharField(blank=True, default='', max_length=100, verbose_name='产品名称')),
+                ('color', models.CharField(blank=True, max_length=50, null=True, verbose_name='颜色')),
+                ('quantity', models.DecimalField(blank=True, decimal_places=2, max_digits=10, null=True, verbose_name='数量')),
+                ('unit', models.CharField(blank=True, default='', max_length=50, verbose_name='单位')),
+                ('spec', models.CharField(blank=True, max_length=100, null=True, verbose_name='规格')),
+                ('quantity_of_rolls', models.TextField(blank=True, null=True, verbose_name='各条数数量')),
+                ('num_of_rolls', models.PositiveIntegerField(default=1, verbose_name='条数')),
+                ('order_quantity', models.IntegerField(blank=True, null=True, verbose_name='下单数量')),
+                ('remarks', models.TextField(blank=True, null=True, verbose_name='备注')),
+                ('pre_sales_order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='business.presalesorder', verbose_name='预销售单')),
+            ],
+            options={
+                'verbose_name': '预销售单明细',
+                'verbose_name_plural': '预销售单明细',
+            },
+        ),
+    ]