feat: add assets amount field to platform page

apps/assets/api/platform.py

@@ -1,3 +1,4 @@
+from django.db.models import Count
 from rest_framework import generics
 from rest_framework import serializers
 from rest_framework.decorators import action
@@ -5,7 +6,7 @@ from rest_framework.response import Response
 
 from assets.const import AllTypes
 from assets.models import Platform, Node, Asset, PlatformProtocol
-from assets.serializers import PlatformSerializer, PlatformProtocolSerializer
+from assets.serializers import PlatformSerializer, PlatformProtocolSerializer, PlatformListSerializer
 from common.api import JMSModelViewSet
 from common.permissions import IsValidUser
 from common.serializers import GroupedChoiceSerializer
@@ -17,6 +18,7 @@ class AssetPlatformViewSet(JMSModelViewSet):
     queryset = Platform.objects.all()
     serializer_classes = {
         'default': PlatformSerializer,
+        'list': PlatformListSerializer,
         'categories': GroupedChoiceSerializer,
     }
     filterset_fields = ['name', 'category', 'type']
@@ -31,8 +33,8 @@ class AssetPlatformViewSet(JMSModelViewSet):
 
     def get_queryset(self):
         # 因为没有走分页逻辑，所以需要这里 prefetch
-        queryset = super().get_queryset().prefetch_related(
-            'protocols', 'automation', 'labels', 'labels__label',
+        queryset = super().get_queryset().annotate(assets_amount=Count('assets')).prefetch_related(
+            'protocols', 'automation', 'labels', 'labels__label'
         )
         queryset = queryset.filter(type__in=AllTypes.get_types_values())
         return queryset

apps/assets/models/platform.py

@@ -111,6 +111,10 @@ class Platform(LabeledMixin, JMSBaseModel):
     def type_constraints(self):
         return AllTypes.get_constraints(self.category, self.type)
 
+    @lazyproperty
+    def assets_amount(self):
+        return self.assets.count()
+
     @classmethod
     def default(cls):
         linux, created = cls.objects.get_or_create(

apps/assets/serializers/platform.py

@@ -1,18 +1,19 @@
-from django.db.models import QuerySet
+from django.db.models import QuerySet, Count
 from django.utils.translation import gettext_lazy as _
 from rest_framework import serializers
 from rest_framework.validators import UniqueValidator
 
+from assets.models import Asset
 from common.serializers import (
     WritableNestedModelSerializer, type_field_map, MethodSerializer,
     DictSerializer, create_serializer_class, ResourceLabelsMixin
 )
-from common.serializers.fields import LabeledChoiceField
+from common.serializers.fields import LabeledChoiceField, ObjectRelatedField
 from common.utils import lazyproperty
 from ..const import Category, AllTypes, Protocol
 from ..models import Platform, PlatformProtocol, PlatformAutomation
 
-__all__ = ["PlatformSerializer", "PlatformOpsMethodSerializer", "PlatformProtocolSerializer"]
+__all__ = ["PlatformSerializer", "PlatformOpsMethodSerializer", "PlatformProtocolSerializer", "PlatformListSerializer"]
 
 
 class PlatformAutomationSerializer(serializers.ModelSerializer):
@@ -179,6 +180,8 @@ class PlatformSerializer(ResourceLabelsMixin, WritableNestedModelSerializer):
         required=False, default="sudo", allow_null=True
     )
     custom_fields = PlatformCustomField(label=_("Custom fields"), many=True, required=False)
+    assets = ObjectRelatedField(queryset=Asset.objects, many=True, required=False, label=_('Assets'))
+    assets_amount = serializers.IntegerField(label=_('Assets amount'), read_only=True)
 
     class Meta:
         model = Platform
@@ -191,7 +194,8 @@ class PlatformSerializer(ResourceLabelsMixin, WritableNestedModelSerializer):
             'internal', 'date_created', 'date_updated',
             'created_by', 'updated_by'
         ]
-        fields = fields_small + [
+        fields_m2m = ['assets', 'assets_amount']
+        fields = fields_small + fields_m2m + [
             "protocols", "domain_enabled", "su_enabled", "su_method",
             "automation", "comment", "custom_fields", "labels"
         ] + read_only_fields
@@ -208,6 +212,7 @@ class PlatformSerializer(ResourceLabelsMixin, WritableNestedModelSerializer):
                 "help_text": _("Assets can be connected using a zone gateway")
             },
             "domain_default": {"label": _('Default Domain')},
+            'assets': {'required': False, 'label': _('Assets')},
         }
 
     def __init__(self, *args, **kwargs):
@@ -265,6 +270,11 @@ class PlatformSerializer(ResourceLabelsMixin, WritableNestedModelSerializer):
         return automation
 
 
+class PlatformListSerializer(PlatformSerializer):
+    class Meta(PlatformSerializer.Meta):
+        fields = list(set(PlatformSerializer.Meta.fields + ['assets_amount']) - {'assets'})
+
+
 class PlatformOpsMethodSerializer(serializers.Serializer):
     id = serializers.CharField(read_only=True)
     name = serializers.CharField(max_length=50, label=_("Name"))