Question

I have a view for an account profile. I’d like the user to be able to edit an image once they’ve added one. I have the edit code. Once a user edits an image, it adds that image to the db, but doesn’t remove the previous image.

So the question is, how do I do the following:

Check to see if an image exists
If it does delete it
Add the new image

My view is located below, any suggestions are welcome.

@login_required
def profile_img_edit(request, username, id):
'''Edit a Profile Image'''
    messages.success(request, "Your changes were saved!")

    user = get_object_or_404(User, username=username)
    if request.user != user:
        return permission_denied(request)
    profile_img = get_object_or_404(ProfileImage, user=user, id=id)
    if request.method == 'POST':
        form = Profile_ImageEditForm(request.POST, request.FILES, instance=profile_img)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect(
                reverse('profile_img', kwargs={
                    'username': request.user.username,
                    'id': profile_img.id}))
    else:
        form = Profile_ImageEditForm()

    return render_to_response('accounts/profile_img_edit.html', {
        'form':form,
        'object':profile_img
    }, context_instance=RequestContext(request))

Answer 1

Instead of adding a new profile_img instance just update the old one in the db:

ProfileImg.objects.filter(user=user).update(img_path='new_image_path')

Not sure if you already are but you should be connecting your ProfileImg model to your User model using ForeignKey .