Django - 获取PIL Image保存方法使用Amazon s3boto Storage [英] Django - Getting PIL Image save method to work with Amazon s3boto Storage

问题描述

为了在上传时调整图像的大小（使用PIL），我将覆盖我的文章模型的保存方式，如下所示：

In order to resize images upon upload (using PIL), I'm overriding the save method for my Article model like so:

def save(self):
    super(Article, self).save()
    if self.image:
        size = (160, 160)
        image = Image.open(self.image)
        image.thumbnail(size, Image.ANTIALIAS) 
        image.save(self.image.path)

这在本地工作，但在生产中我收到错误：
NotImplementedError：此后端不支持绝对路径。

This works locally but in production I get an error: NotImplementedError: This backend doesn't support absolute paths.

我尝试用

image.save(self.image.url)

但是我得到一个IOError：
[Errno 2]没有这样的文件或目录：'< a href =https://my_bucket_name.s3.amazonaws.com/article/article_images/2.jpg> https://my_bucket_name.s3.amazonaws.com/article/article_images/2.jpg '

but then I get an IOError: [Errno 2] No such file or directory: 'https://my_bucket_name.s3.amazonaws.com/article/article_images/2.jpg'

这是图像的正确位置。如果我把这个地址放在浏览器中，图像就在那里。我尝试了许多其他的事情，但到目前为止，没有运气。

That is the correct location of the image though. If I put that address in the browser, the image is there. I tried a number of other things but so far, no luck.

推荐答案

你应该尝试避免保存到绝对路径;有一个文件存储API ，为您提取这些类型的操作。

You should try and avoid saving to absolute paths; there is a File Storage API which abstracts these types of operations for you.

查看 PIL文档，看来 save（）函数支持传递类似文件的对象而不是路径。

Looking at the PIL Documentation, it appears that the save() function supports passing a file-like object instead of a path.

我不在一个环境，我可以测试这个代码，但我相信你需要做这样的事情，而不是最后一行：

I'm not in an environment where I can test this code, but I believe you would need to do something like this instead of your last line:

from django.core.files.storage import default_storage as storage

fh = storage.open(self.image.name, "w")
format = 'png'  # You need to set the correct image format here
image.save(fh, format)
fh.close()

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