Process the inline editing form.

def edit(request):
    """
    Process the inline editing form.
    """
    model = apps.get_model(request.POST["app"], request.POST["model"])
    obj = model.objects.get(id=request.POST["id"])
    form = get_edit_form(obj, request.POST["fields"], data=request.POST,
                         files=request.FILES)
    if not (is_editable(obj, request) and has_site_permission(request.user)):
        response = _("Permission denied")
    elif form.is_valid():
        form.save()
        model_admin = ModelAdmin(model, admin.site)
        message = model_admin.construct_change_message(request, form, None)
        model_admin.log_change(request, obj, message)
        response = ""
    else:
        response = list(form.errors.values())[0][0]
    return HttpResponse(response)