只需将文件保存到 Django 中的文件夹 [英] Simply save file to folder in Django

问题描述

我有一段代码可以通过 POST 从表单中获取文件.

I have a piece of code which gets a file from a form via POST.

file = request.FILES['f']

将此文件保存到我的媒体文件夹的最简单方法是什么

What would be the simplest way of saving this file to my media folder in

settings.MEDIA_ROOT

我在看这个回答等，但我在引用未定义的名称和无效的块"方法时出错.

I was looking at this answer, among others, but I had errors refering to undefined names and invalid "chunks" method.

必须有一个简单的方法来做到这一点吗?

There must be a simple way to do this?

编辑我的 views.py 中的上传方法:

EDIT Upload method in my views.py:

def upload(request):
    folder = request.path.replace("/", "_")
    uploaded_filename = request.FILES['f'].name

    # create the folder if it doesn't exist.
    try:
        os.mkdir(os.path.join(settings.MEDIA_ROOT, folder))
    except:
        pass

    # save the uploaded file inside that folder.
    full_filename = os.path.join(settings.MEDIA_ROOT, folder, uploaded_filename)
    fout = open(full_filename, 'wb+')

    file_content = ContentFile( request.FILES['f'].read() )

    # Iterate through the chunks.
    for chunk in file_content.chunks():
        fout.write(chunk)
    fout.close()

推荐答案

使用 default_storage 优于 FileSystemStorage.

您可以使用 FileSystemStorage 将文件保存到 MEDIA_ROOT，但是当您将来更改 DEFAULT_FILE_STORAGE 后端时，这可能不再起作用.

You can save file to MEDIA_ROOT with FileSystemStorage but when you change DEFAULT_FILE_STORAGE backend in the future this may not work anymore.

如果您使用 default_storage，将来如果您想使用 aws、azure 等作为具有多个 Django worker 的文件存储，您的代码将无需任何更改即可运行.

If you use default_storage, in the future if you want to use aws, azure etc as file store with multiple Django worker your code will work without any change.

default_storage 使用示例:

default_storage usage example:

from django.core.files.storage import default_storage

#  Saving POST'ed file to storage
file = request.FILES['myfile']
file_name = default_storage.save(file.name, file)

#  Reading file from storage
file = default_storage.open(file_name)
file_url = default_storage.url(file_name)

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