Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
916 views
in Technique[技术] by (71.8m points)

python - Return image url in Django Rest Framework

I am using Django Rest Framework and have the following model:

class Picture(models.Model):
    some_field = models.ForeignKey(some_model)
    image = models.ImageField()

I would like to write a GET endpoint that returns the url of the image. This is what I've done so far

def get(self, request, aid):
    '''
    Get Image
    '''
    try:
        picture = Picture.objects.filter(some_field=aid)
    except Picture.DoesNotExist:
        raise Http404

    serialiser = PictureSerialiser(picture)
    return Response(serialiser.data)

and my Serialiser as follows:

class PictureSerialiser(serializers.ModelSerializer):

    class Meta:
        model = Picture
        fields = ('field', 'image')

How do I make sure that the response is {field:'Value here', image:'url to image'}?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You could do this with a custom serializer method like so:

class PictureSerialiser(serializers.ModelSerializer):

    image_url = serializers.SerializerMethodField('get_image_url')

    class Meta:
        model = Picture
        fields = ('field', 'image', 'image_url')

    def get_image_url(self, obj):
        return obj.image.url

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...