django - 如何以编程方式在 Django 中存储 S3 图像

Question

正如此处链接的上一个问题中所述，我在 Django 中保存图像并上传到 S3。图像已经驻留在 S3 中，我想通过创建媒体对象以编程方式将图像添加到 Django。

Django storages S3 - Store existing file

我的类(class)是这样的:

class Media( models.Model ):
    asset_title = models.CharField( 'Title', max_length=255, help_text='The title of this asset.' )
    image_file = models.ImageField( upload_to='upload/%Y/%m/%d/', blank=True )

在我看来，我有这个:

bucket = s3.Bucket('my-bucket')

for my_bucket_object in bucket.objects.filter(Prefix='media/upload/2020'):
    djfile = Media.objects.create(asset_title=my_bucket_object.key, image_file=my_bucket_object)

我目前收到 AttributeError: 's3.ObjectSummary' 对象没有属性 '_committed'

Answer 1

s3.ObjectSummary 对象可能无法被 Django 识别为图像对象。

试一试

from django.core.files.base import ContentFile

bucket = s3.Bucket('my-bucket')

for my_bucket_object in bucket.objects.filter(Prefix='media/upload/2020'):
    djfile = Media.objects.create(asset_title=my_bucket_object.key, image_file=ContentFile(my_bucket_object))  

The ContentFile class inherits from File, but unlike File, it operateson string content (bytes also supported), rather than an actual file
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