多对多字段中的Django反向关系

Question

我如何获得像下面这样的画廊回复。现在，galleryserializer returns 响应仅包含 id 的图像数组。我无法获取图像的详细信息。

json 回复：

{
    "name": "New Gallery",
    "images": [
        {
             id: 1,
             image: 'url/path/to/image',
             alt_text: 'alt'
        },
        {
             id: 2,
             image: 'url/path/to/image1',
             alt_text: 'alt'
        },
    ]
}

我的models.py文件：

class GalleryImage(models.Model):
    image = models.ImageField(upload_to='gallery/')
    alt_text = models.CharField(max_length=300)
    created = models.DateTimeField(auto_now_add=True)

class Gallery(models.Model):
    name = models.CharField(max_length=30)
    slug = AutoSlugField(populate_from='name', unique_with='id')
    images = models.ManyToManyField(GalleryImage, related_name="galleryimages")
    created = models.DateTimeField(auto_now_add=True)

我的serializers.py文件：

class GalleryImageSerializer(serializers.ModelSerializer):
    class Meta:
        model = GalleryImage
        exclude = '__all__'

class GallerySerializer(serializers.ModelSerializer):
    class Meta:
        model = Gallery
        fields = '__all__'

Answer 1

使用嵌套序列化

class GallerySerializer(serializers.ModelSerializer):
    <b>images = GalleryImageSerializer(many=True)</b>
    class Meta:
        model = Gallery
        fields = '__all__'

多对多字段中的Django反向关系

Django reverse relationship in many-to-many field

api

django

django-serializer

django-rest-framework