Using Heroku for Django Media Files

Question

On the heroku domain, I am not able to load my Media(Images Saved by using ImageField property) file images. However, I am able to see the images saved in the static field if I set debug = True

I save my images using the following command:

image = models.ImageField(upload_to=upload_location, null=True, blank=True, width_field="width_field", height_field = "height_field")

And I am able to reference them in my template by doing someething like this:

<img src="{{ instance.image.url }}" class="img-responsive">

Where instance is passed from my views.py like so:

instance = get_object_or_404(Post,slug=slug)
if instance.draft or instance.publish > timezone.now().date():
    if not request.user.is_staff or not request.user.is_superuser:
        raise Http404
share_string = quote_plus(instance.content)
context = {
    "title": "Detail",
    "instance": instance,
    "share_string":share_string,
}
return render(request,"post_detail.html",context)

Thanks

Answer 1

Reason

Heroku runs your application on dynos and dynos go to sleep after 30 minutes if there is not request comes, this makes Heroku not preserve user upload media files between dynos restart.

Solution

Use Amazon S3 service for storing and serving media files + you can also serve static files from S3 also. for documentation refer here.