Question

DRF默认序列化为其相对路径的文件字段或图像域路径。

喜欢这个问题Django REST Framework and FileField absolute url

我知道可以生成一个名为“file_url”的自定义字段并序列化完整路径。

但是可以在同一个字段中序列化吗？像：

class Project(models.Model):
    name = models.CharField(max_length=200)
    thumbnail = models.FileField(upload_to='media', null=True)

class ProjectSerializer(serializers.HyperlinkedModelSerializer):

    class Meta:
        model = Project
        fields = ( 'id' ,'url', 'name', 'thumbnail')

class ProjectViewSet(viewsets.ModelViewSet):
    queryset = Project.objects.all()
    serializer_class = ProjectSerializer

{
    "id": 1, 
    "url": "http://localhost:8000/api/v1/projects/1/", 
    "name": "Institutional", 
    "thumbnail": "ABSOLUTE URL"
}

Answer 1

你可以覆盖to_representation方法并在那里写一个绝对路径：

class ProjectSerializer(serializers.HyperlinkedModelSerializer):

    class Meta:
        model = Project
        fields = ( 'id' ,'url', 'name', 'thumbnail')

    def to_representation(self, instance):
        representation = super(ProjectSerializer, self).to_representation(instance)
        domain_name = # your domain name here
        full_path = domain_name + instance.thumbnail.url
        representation['thumbnail'] = full_path
        return representation

Django REST Framework和FileField绝对url在同一个字段上

1 个答案: