Python 无法在Django Rest序列化程序中填充图像
我正在使用Django REST框架开发REST API,但我无法在提要序列化程序中填充图像 Django版本:3.1.7 Python版本:3.9.2 型号:Python 无法在Django Rest序列化程序中填充图像,python,django,django-models,django-rest-framework,Python,Django,Django Models,Django Rest Framework,我正在使用Django REST框架开发REST API,但我无法在提要序列化程序中填充图像 Django版本:3.1.7 Python版本:3.9.2 型号: class User(AbstractUser): age = models.PositiveIntegerField(null=True) address = models.TextField(null=True) email = models.EmailField(_('email address'), un
class User(AbstractUser):
age = models.PositiveIntegerField(null=True)
address = models.TextField(null=True)
email = models.EmailField(_('email address'), unique=True, null=False)
first_name = models.CharField(_('first name'), max_length=150, blank=False, null=False)
last_name = models.CharField(_('last name'), max_length=150, blank=False, null=False)
image = models.ImageField(upload_to='storage', null=True)
class Feed(models.Model):
description = models.TextField()
likes_count = models.PositiveIntegerField(default=0, null=True)
comments_count = models.PositiveIntegerField(default=0, null=True)
updated_at = models.DateTimeField(auto_now=True)
created_at = models.DateTimeField(auto_now_add=True)
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='user')
tags = models.ManyToManyField(User, related_name='tags', blank=True)
class FeedImage(models.Model):
path = models.ImageField(upload_to='storage', null=False)
post = models.ForeignKey(Feed, on_delete=models.CASCADE, null=False, default='')
序列化程序:
class FeedUserSerializer(ModelSerializer):
class Meta:
model = User
fields = ('id', 'first_name', 'last_name', 'image')
class FeedImageSerializer(serializers.ModelSerializer):
class Meta:
model = FeedImage
fields = ('id', 'path', 'post')
class FeedSerializer(ModelSerializer):
user = FeedUserSerializer()
images = FeedImageSerializer(many=True, read_only=True)
class Meta:
model = Feed
fields = ('id', 'description', 'comments_count', 'likes_count', 'updated_at', 'created_at',
'tags', 'images', 'user')
查看:
class FeedsListView(generics.ListAPIView):
queryset = Feed.objects.all()
return FeedSerializer
[{
"id": 1,
"description": "Hello world",
"comments_count": 0,
"likes_count": 0,
"updated_at": "2021-04-26T03:01:44.219235Z",
"created_at": "2021-04-26T03:01:44.219235Z",
"tags": [],
"user": {
"id": 1,
"first_name": "abc_first",
"last_name": "cdef_last",
"image": "http://192.168.88.28:8000/storage/1_Facebook_1.jpg"
},
"images": [
{
"id": 1,
"post": "1",
"path": "imagelocation"
},
{
"id": 2,
"post": "1",
"path": "imagelocation 2"
}
]
}]
问题:我得到的结果没有图像
[{
"id": 1,
"description": "Hello world",
"comments_count": 0,
"likes_count": 0,
"updated_at": "2021-04-26T03:01:44.219235Z",
"created_at": "2021-04-26T03:01:44.219235Z",
"tags": [],
"user": {
"id": 1,
"first_name": "ZAIN",
"last_name": "REHMAN",
"image": "http://192.168.88.28:8000/storage/1_Facebook_1.jpg"
}
}]
预期输出:
class FeedsListView(generics.ListAPIView):
queryset = Feed.objects.all()
return FeedSerializer
[{
"id": 1,
"description": "Hello world",
"comments_count": 0,
"likes_count": 0,
"updated_at": "2021-04-26T03:01:44.219235Z",
"created_at": "2021-04-26T03:01:44.219235Z",
"tags": [],
"user": {
"id": 1,
"first_name": "abc_first",
"last_name": "cdef_last",
"image": "http://192.168.88.28:8000/storage/1_Facebook_1.jpg"
},
"images": [
{
"id": 1,
"post": "1",
"path": "imagelocation"
},
{
"id": 2,
"post": "1",
"path": "imagelocation 2"
}
]
}]
我们欢迎任何解决方案或解决方法。
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class FeedSerializer(ModelSerializer):
images = serializers.SerializerMethodField()
class Meta:
model = Feed
fields = ('id', 'description', 'comments_count', 'likes_count', 'updated_at', 'created_at',
'tags', 'images', 'user')
def get_images(self, obj):
return obj.feedimage_set.all().values('id', 'path', 'post')
谢谢,我在FeedSerializer中应用了您的解决方案,解决了这个问题。