ht80/houduan/api02/serializers.py

# serializers.py
from rest_framework import serializers
from .models import RedTourismSpot


class RedTourismSpotSerializer(serializers.ModelSerializer):
    image_url = serializers.SerializerMethodField()

    class Meta:
        model = RedTourismSpot
        fields = ['id', 'name', 'category', 'location', 'description',
                  'history', 'open_time', 'ticket_info', 'image_url']

    def get_image_url(self, obj):
        if obj.image and hasattr(obj.image, 'url'):
            return self.context['request'].build_absolute_uri(obj.image.url)
        return None


from rest_framework import serializers
from api.models import UserPlan


class UserPlanSerializer(serializers.ModelSerializer):
    user_id = serializers.IntegerField(write_only=True)  # 只用于写入

    class Meta:
        model = UserPlan
        fields = ['id', 'user_id', 'spot_id', 'spot_name','spot_img','created_at']
        extra_kwargs = {
            'user': {'read_only': True},  # 用户信息只读，由后端设置
            'created_at': {'read_only': True}
        }