Django 不提供用户在 heroku 上上传的媒体文件

Question

我已经尝试了所有方法，但不知何故我看不到用户上传的图像。我已经在 heroku 上部署了代码，并且每个静态文件都被正确加载。用户甚至要更正图像的路径，但不知何故服务器显示找不到图像的错误。

Settings.py
 # Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.8/howto/static-files/

STATIC_ROOT = os.path.join(PROJECT_ROOT, 'staticfiles')
STATIC_URL = '/static/'

# Extra places for collectstatic to find static files.
#STATICFILES_DIRS = (
#    os.path.join(PROJECT_ROOT, 'static'),
#)

STATICFILES_DIRS = (
    os.path.join(PROJECT_ROOT, 'static'),
)

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'

Models.py
#this is for photos upload by user
class You(models.Model):
    user = models.ForeignKey(User,null=True)
    name=models.CharField(max_length=30,blank=True,default='pictures/videos')
    docfile = models.FileField(upload_to='documents/%Y/%m/%d', null=True,blank=True)

    def __unicode__(self):
        return self.user.username

#Views.py(To upload files)
@login_required
def upload(request):

    if request.method == 'POST':

        newdoc = You(docfile = request.FILES['file'],user=request.user)
        newdoc.save()
        msg='dee'
            # Redirect to the document list after POST
        return HttpResponse(json.dumps({'message': msg}))

    else:
        form = DocumentForm()



    # Render list page with the documents and the form
    return render(request,'mat_upload.html',{'form':form})

Template(gallery.html)
{% for document in documents %}
<img class="img-responsive" src="{{MEDIA_URL}}/media/{{ document.docfile }}" alt="hiiii" style="max-width: 100%;
    height: 250px;" />
{% endfor %}

@login_required
def gallery(request):
    documents =  You.objects.filter(user=request.user)

    return render(request,'gallery.html',{'documents': documents,})
Urls.py
from django.conf.urls import include, url

from django.contrib import admin

from django.conf import settings
from django.conf.urls.static import static
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from django.views.generic import RedirectView
admin.autodiscover()

import harpoons.views


urlpatterns = [

    url(r'^admin/', include(admin.site.urls)),
    url(r'^', include('harp.urls')),
    url(r'^password_reset_recover/', include('password_reset.urls')),
    url(r'^accounts/', include('allauth.urls')),




]

Answer 1

您无法在 Heroku 本地保存用户上传的文件。文件系统是短暂的，不会在 dyno 重新启动或并发 dyno 之间持续存在。您需要将它们上传到更永久的地方；一个流行的选择是 Amazon S3，有很多库可以为您做到这一点。