def check_progress(request, course, instance, content, revision, task_id):
# Based on https://djangosnippets.org/snippets/2898/
# TODO: Check permissions
task = celery_app.AsyncResult(id=task_id)
info = task.info
if task.ready():
return file_exercise_evaluation(request, course, instance, content,
revision, task_id, task)
else:
celery_status = get_celery_worker_status()
if "errors" in celery_status:
data = celery_status
else:
progress_url = reverse('courses:check_progress',
kwargs={
'course': course,
'instance': instance,
'content': content,
'revision': revision,
'task_id': task_id,
})
if not info:
info = task.info # Try again in case the first time was too early
data = {
"state": task.state,
"metadata": info,
"redirect": progress_url
}
return JsonResponse(data)
def course_completion_csv_progress(request, course, instance, task_id):
task = celery_app.AsyncResult(id=task_id)
if task.ready():
download_url = reverse("teacher_tools:completion_csv_download",
kwargs={
"course": course,
"instance": instance,
"task_id": task_id
})
data = {
"state": task.state,
"metadata": task.info,
"redirect": download_url
}
return JsonResponse(data)
else:
progress_url = reverse("teacher_tools:completion_csv_progress",
kwargs={
"course": course,
"instance": instance,
"task_id": task_id
})
data = {
"state": task.state,
"metadata": task.info,
"redirect": progress_url
}
return JsonResponse(data)
def generate_instance_stats(request, course, instance):
task_meta = cache.get("{}_stat_meta".format(instance.slug))
task_meta = task_meta and json.loads(task_meta)
if task_meta and task_meta["completed"] is None:
task = celery_app.AsyncResult(id=task_meta["task_id"])
if task.state in ("PENDING", "STARTED"):
return HttpResponse(
_("Stats generation for '%s' has already been requested." % instance.name),
status=409
)
data = {"msg": _("Stats requested. Request processing starts approximately:")}
if settings.STAT_GENERATION_HOUR is None:
task = chain(
stat_tasks.generate_instance_user_stats.si(instance_slug=instance.slug),
stat_tasks.generate_instance_tasks_summary.si(instance_slug=instance.slug),
stat_tasks.finalize_instance_stats.s(instance_slug=instance.slug)
).apply_async(ignore_result=True)
data["eta"] = datetime.datetime.today().strftime("%Y-%m-%d %H:%M:%S")
else:
today = datetime.datetime.today()
eta = today.replace(hour=settings.STAT_GENERATION_HOUR, minute=0, second=0)
task = chain(
stat_tasks.generate_instance_user_stats.si(instance_slug=instance.slug),
stat_tasks.generate_instance_tasks_summary.si(instance_slug=instance.slug),
stat_tasks.finalize_instance_stats.s(instance_slug=instance.slug)
).apply_async(eta=eta, ignore_result=True)
data["eta"] = eta.strftime("%Y-%m-%d %H:%M:%S")
cache.set("{}_stat_meta".format(instance.slug), json.dumps({"task_id": task.task_id, "completed": None}))
return JsonResponse(data)
def course_completion_csv_download(request, course, instance, task_id):
task = celery_app.AsyncResult(id=task_id)
if task.ready():
csv_str = cache.get(task_id)
cache.delete(task_id)
task.forget()
response = HttpResponse(content=csv_str, content_type="text/csv")
response[
"Content-Disposition"] = "attachment; filename={}_completion_{}.csv".format(
instance.slug,
datetime.date.today().strftime("%Y-%m-%d"))
return response
else:
return HttpResponseGone(
_("Completion CSV generation (task id: %s) has already been downloaded."
% task_id))
def moss_progress(request, course, instance, content, task_id):
task = celery_app.AsyncResult(id=task_id)
if task.ready():
data = {"state": task.state, "metadata": task.info}
return JsonResponse(data)
else:
progress_url = reverse("teacher_tools:moss_progress",
kwargs={
"course": course,
"instance": instance,
"content": content,
"task_id": task_id
})
data = {
"state": task.state,
"metadata": task.info,
"redirect": progress_url
}
return JsonResponse(data)