Make IP address field optional for UPS host

ups_management/ups_manager/migrations/0005_alter_upshost_ip_address.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0.6 on 2026-05-18 05:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ups_manager', '0004_maintenancerecord_maintenance_type'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='upshost',
+            name='ip_address',
+            field=models.CharField(blank=True, max_length=50, null=True, verbose_name='IP地址'),
+        ),
+    ]

ups_management/ups_manager/models.py

@@ -36,7 +36,7 @@ class Supplier(models.Model):
 class UPSHost(models.Model):
     brand = models.CharField(max_length=100, verbose_name='品牌')
     model = models.CharField(max_length=100, verbose_name='型号')
-    ip_address = models.CharField(max_length=50, verbose_name='IP地址')
+    ip_address = models.CharField(max_length=50, blank=True, null=True, verbose_name='IP地址')
     quantity = models.IntegerField(default=1, verbose_name='数量')
     location = models.CharField(max_length=200, verbose_name='存放位置')
     last_maintenance_date = models.DateField(blank=True, null=True, verbose_name='上次维保时间')