ValueError：无法序列化：< myproject.storage.AzureStorage对象在0x7f85185e66d0> [英] ValueError: Cannot serialize: <myproject.storage.AzureStorage object at 0x7f85185e66d0>

问题描述

我正在尝试使用 AzureStorage 将天蓝存储与django 1.7应用程序连接起来。

I am trying to use AzureStorage to for connecting azure storage with django 1.7 app .

models.py

models.py

from django.db import models
from myproject.storage import AzureStorage

class MyModel(models.Model):
    my_file = models.FileField(upload_to="files", storage=AzureStorage(container="media"))
    my_image = models.ImageField(upload_to="images", storage=AzureStorage(container="media"))

但是，当我尝试makemigrations我得到：

But when I try to makemigrations I am getting :

ValueError: Cannot serialize: <myproject.storage.AzureStorage object at 0x7f85185e66d0>
There are some values Django cannot serialize into migration files.
For more, see https://docs.djangoproject.com/en/dev/topics/migrations/#migration-serializing

究竟什么不能序列化？

推荐答案

您是否从升级到Django 1.7。获取错误：无法序列化：< storages.backends.s3boto.S3BotoStorage对象，这是一个类似的问题。复制了这里的答案，以供您快速参考：

Have you checked the solution from Upgrading to Django 1.7. Getting error: Cannot serialize: <storages.backends.s3boto.S3BotoStorage object which was a similar question asking before. Copied the answer here for your quick reference:

这里的基本问题是您尝试使用Django 1.7与
包装（django-storages）似乎没有更新到
与该版本一起工作。

The basic issue here is that you are trying to use Django 1.7 with a package (django-storages) that doesn't appear to have been updated to work with that version yet.

以下是文档中的一些摘录说明什么是
发生：

Here are some excerpts from the documentation to explain what is happening:

迁移只是包含
您的模型的旧定义的Python文件 - 因此，要编写它们，Django必须采取您的模型的当前状态
，并将它们序列化为一个文件。

Migrations are just Python files containing the old definitions of your models - thus, to write them, Django must take the current state of your models and serialize them out into a file.

尽管Django可以序列化大部分内容，但有一些我们
只是无法序列化为一个有效的Python表示 - 有一个
没有Python标准，如何一个值可以转回代码。

While Django can serialize most things, there are some things that we just can’t serialize out into a valid Python representation - there’s no Python standard for how a value can be turned back into code.

你可以让Django序列化您自己的自定义类实例通过给
该类一个deconstruct（）方法。

You can let Django serialize your own custom class instances by giving the class a deconstruct() method.

所以这里的解决方案是给类
storages.backends.s3boto.S3BotoStorage一个解构（）方法。那个
可能会像应用@deconstructible类
decorator一样简单。

So the solution here is to give the class storages.backends.s3boto.S3BotoStorage a deconstruct() method. That will probably be as easy as applying the @deconstructible class decorator.

大概该包将会在某个时候（或
也许主分公司已经有了吗？），但是你也可以自己修补
。

Presumably the package will incorporate this change at some point (or perhaps the master branch already has it?), but you could also just patch it yourself.

请如果解决方案（使用django.utils.deconstruct中的@deconstructible类装饰器添加deconstruct（）方法），您可以随时通知我们。

Please feel free to let us know if the solution (use the @deconstructible class decorator from django.utils.deconstruct to add the deconstruct() method) does not work for you.

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