如何从Django管理员下载文件 [英] How to download file from django admin

问题描述

我在 models.py 的 class Part 中创建了 FileField .我也通过方法 file_link(self)

I created FileField in class Part in models.py. Also I get the link of this file by method file_link(self):

origin = models.FileField(upload_to='origin_files', null=True, blank=True)

    def file_link(self):
        try:
                return "<a href='%s'>download</a>" % (self.origin.url,)
        except PageNotAnInteger:
            return "<a href=127.0.0.1:8000/main>download</a>"

    file_link.allow_tags = True

在admin.py中，我为 file_link 添加了 readonly_fields .我也添加了字段集 file_link :

In admin.py I added readonly_fields for file_link. Also I added in fieldsets file_link:

readonly_fields = ('file_link',)

fieldsets = (
    ('Характеристики плёнки', {
        'fields': (....'data', 'origin', 'file_link')
    }),

)

因此，在我的Django管理员中，我有FileField，它允许将文件上传到目录 origin_files 并链接到该文件.但是，当我单击此链接时，我将重定向到我网站的主页.例如，我下载了文件presentation.pptx.当我获得该文件的网址时，我会得到

So, in my django admin I have FileField which allows to upload files to directory origin_files and link to this file. But when I click on this link I'm redirecting to home page of my site. For example, I downloaded file presentation.pptx. When I get url of this file I get

http://127.0.0.1:8000/admin/description/part/12/change/origin_files/Presentation.pptx

我如何下载此文件?

推荐答案

您必须在Django设置中配置 MEDIA_URL

You have to configure MEDIA_URL in your django settings

https://docs.djangoproject.com/en/2.0/ref/settings/#media-url

Django通过以下方式构建您的网址:

Django builds your url the following way:

settings.MEDIA_URL +"origin_files/Presentation.pptx"

settings.MEDIA_URL + "origin_files/Presentation.pptx"

MEDIA_URL的默认值是一个空字符串，因此您获得的URL为"origin_files/Presentation.pptx"，并且您的浏览器将其连接到当前页面，因为该URL并非以斜杠开头.

the MEDIA_URL default is an empty string, therefore you get the url "origin_files/Presentation.pptx" and your browser concatenates it to the current page, because the url doesn't start with a slash.

所以您必须将MEDIA_URL设置为'/media/'

so you have to set the MEDIA_URL for example to '/media/'

然后一切都将在您的开发环境中工作.

then everything will work in your development environment.

在远程服务器上，这还需要适当地配置Web服务器，以便将您的MEDIA_ROOT服务到MEDIA_URL(显然超出了此问题的范围).

On remote server this also requires configuring the web server appropriatelly for it to serve your MEDIA_ROOT to MEDIA_URL (out of the scope of this question obviously).

这篇关于如何从Django管理员下载文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！