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chengshishouce/backend/apps/regions/serializers.py
mashen c866e74ece Initial commit: React + Django 城市手册项目
- Django 4.2 + DRF + JWT + GraphQL
- React 18 + MobX + styled-components
- PostgreSQL 数据库
- Docker + Docker Compose + Nginx
- 完整的功能模块(用户、版块、文章、服务、交互、版主管理)
- 完整的文档(需求、部署、测试)
2026-04-09 13:56:02 +00:00

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Python

from rest_framework import serializers
from .models import Region
class RegionSerializer(serializers.ModelSerializer):
"""Serializer for Region model."""
level_display = serializers.CharField(source='get_level_display', read_only=True)
status_display = serializers.CharField(source='get_status_display', read_only=True)
parent_name = serializers.CharField(source='parent.name', read_only=True, allow_null=True)
children_count = serializers.SerializerMethodField()
class Meta:
model = Region
fields = ('id', 'name', 'level', 'level_display', 'parent', 'parent_name',
'status', 'status_display', 'children_count', 'created_at', 'updated_at')
read_only_fields = ('id', 'created_at', 'updated_at')
def get_children_count(self, obj):
return obj.children.count()
class RegionDetailSerializer(serializers.ModelSerializer):
"""Detailed serializer for Region model."""
level_display = serializers.CharField(source='get_level_display', read_only=True)
status_display = serializers.CharField(source='get_status_display', read_only=True)
parent = RegionSerializer(read_only=True)
children = RegionSerializer(many=True, read_only=True)
full_path = serializers.SerializerMethodField()
class Meta:
model = Region
fields = ('id', 'name', 'level', 'level_display', 'parent', 'children',
'status', 'status_display', 'full_path', 'created_at', 'updated_at')
read_only_fields = ('id', 'created_at', 'updated_at')
def get_full_path(self, obj):
return obj.get_full_path()
class RegionTreeSerializer(serializers.ModelSerializer):
"""Serializer for Region tree structure."""
children = serializers.SerializerMethodField()
class Meta:
model = Region
fields = ('id', 'name', 'level', 'status', 'children')
def get_children(self, obj):
children = obj.get_children()
return RegionTreeSerializer(children, many=True).data