perf: 数据库资产 默认数据库 是必填项

apps/assets/serializers/asset/database.py

@@ -1,5 +1,6 @@
 from django.utils.translation import ugettext_lazy as _
 from rest_framework.serializers import ValidationError
+from rest_framework import serializers
 
 from assets.models import Database
 from assets.serializers.gateway import GatewayWithAccountSecretSerializer
@@ -9,6 +10,8 @@ __all__ = ['DatabaseSerializer', 'DatabaseWithGatewaySerializer']
 
 
 class DatabaseSerializer(AssetSerializer):
+    db_name = serializers.CharField(max_length=1024, label=_('Default database'), required=True)
+
     class Meta(AssetSerializer.Meta):
         model = Database
         extra_fields = [