尝试在上传时将.mov文件更改为.mp4 - Python / Django

Question

第一次在这里提问...所以

我有一个django web app，人们可以在其中上传视频文件。视频文件上传得很好，当它们.mp4文件时，他们可以单击它们并立即在chrome浏览器中播放它们。但是，如果视频文件.mov，则会强制用户在查看之前将文件下载到其计算机。我尝试在保存之前捕获文件并将文件名从.mov更改为.mp4，但它不起作用。

form = AddAttachmentForm(request.POST, request.FILES)
if form.is_valid():
attachment = form.save(commit=False)
attachment.user = student
attachment.attacher = self.request.user
attachment.date_attached = timezone.now()
attachment.competency = competency
attachment.filename = request.FILES['attachment'].name
if attachment.filename.endswith('.mov'):
attachment.filename.replace('.mov','.mp4') 
attachment.save()

Answer 1

尝试使用这个：

import os
form = AddAttachmentForm(request.POST, request.FILES)
if form.is_valid():
attachment = form.save(commit=False)
attachment.user = student
attachment.attacher = self.request.user
attachment.date_attached = timezone.now()
attachment.competency = competency
filename = request.FILES['attachment'].name
ext = os.path.splitext(filename)[1].lower()
if ext == '.mov':
attachment.filename = os.path.splitext(filename)[0] + '.mp4'
else:
attachment.filename = filename
attachment.save()

这应该根据需要更改文件扩展名，但我认为更改扩展名对浏览器没有任何影响，因为它也会检查mime 类型。

Answer 2

这样你只是在创建一个扩展.mov.mp4

use os.path.splitext((， os.rename((

import os
thisFile = "mysequence.mov"
base = os.path.splitext(thisFile)[0]
os.rename(thisFile, base + ".mp4")