更新MEDIA_URL没有反映在的ImageField网址 [英] Updated MEDIA_URL not reflected in ImageField url

问题描述

我试图从服务在Amazon S3上给Amazon CloudFront的文件移动，所以我更新了我的 settings.py 。 previously，我有这样的：

I'm trying to move from serving files on Amazon S3 to Amazon CloudFront, so I updated my settings.py. Previously, I had this:

S3_URL = 'http://{}.s3.amazonaws.com'.format(AWS_STORAGE_BUCKET_NAME)
STATIC_URL = S3_URL + STATIC_DIRECTORY
MEDIA_URL = S3_URL + MEDIA_DIRECTORY

我更新了这个如下：

I updated this as follows:

#S3_URL = 'http://{}.s3.amazonaws.com'.format(AWS_STORAGE_BUCKET_NAME)
S3_URL = 'http://d2ynhpzeiwwiom.cloudfront.net'

在控制台中的设置被更新：

In the console, the settings are updated:

>>> from django.conf import settings
>>> settings.MEDIA_URL
'http://d2ynhpzeiwwiom.cloudfront.net/media/'

但不是在我的模型的的ImageField ：

>>> design.image.url
'https://bucketname.s3.amazonaws.com/media/images/designs/etc/etc'

怎么办？哪里是旧的信息仍然存储以及如何清理一下？

What gives? Where is the old information still stored and how do I flush it out?

推荐答案

哎呦，原来的 FileField.url 属性不使用 MEDIA_URL 。据<一href="https://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.fields.files.FieldFile.url"相对=nofollow> Django的文档：

Whoops, turns out the FileField.url property doesn't use MEDIA_URL. According to the Django docs:

FieldFile.url

一个只读属性通过调用底层存储类的网​​址（）方法来访问该文件的相对URL。

A read-only property to access the file’s relative URL by calling the url() method of the underlying Storage class.

在我的情况下，底层存储类，是 S3BotoStorage 按 Django的储量提供了。正如由现在这个德precated叉，这是previously不支持的，但是现在可以通过添加以下做 settings.py ：

In my case, the underlying storage class, was S3BotoStorage provided by django-storages. As noted by this now-deprecated fork, this was previously not supported, but can now be done by adding the following to settings.py:

AWS_S3_CUSTOM_DOMAIN = 'd2ynhpzeiwwiom.cloudfront.net'

现在它就像一个魅力：

>>> design.image.url
u'https://d2ynhpzeiwwiom.cloudfront.net/media/images/designs/etc/etc'

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