def add_existing_exercises(request):
#don't catch video DoesNotExist here because we want some tangible error action to happen if
#the video id changes in form submission, like mailing us
video = Video.objects.get(id=request.POST['video_id'])
exercise_ids = request.POST.getlist('exercise')
exercises = Exercise.objects.filter(id__in=exercise_ids)
for exercise in exercises:
#if this exercise has been deleted previously then just un-delete it
videoToExs = VideoToExercise.objects.filter(
video=video, exercise_id=exercise.id, mode='draft',
is_deleted=1).order_by('-id')
if videoToExs.exists():
videoToEx = videoToExs[0]
videoToEx.is_deleted = 0
videoToEx.video_time = 0
videoToEx.save()
#else create a new one
else:
videoToEx = VideoToExercise(video=video,
exercise=exercise,
is_deleted=0,
video_time=0,
mode='draft')
videoToEx.save()
return HttpResponseRedirect(
reverse('courses.videos.views.manage_exercises',
args=(
request.POST['course_prefix'],
request.POST['course_suffix'],
video.slug,
)))
def add_exercise(request):
# try:
# common_page_data = get_common_page_data(request, course_prefix, course_suffix)
# except:
# raise Http404
#don't catch video DoesNotExist here because we want some tangible error to happen if
#the video id changes in form submission, like emailing us
video = Video.objects.get(id=request.POST['video_id'])
video_time = request.POST['videotime']
file_content = request.FILES['exercise']
file_name = file_content.name
exercise = Exercise()
exercise.handle = request.POST['course_prefix'] + '--' + request.POST[
'course_suffix']
exercise.fileName = file_name
exercise.file.save(file_name, file_content)
exercise.save()
videoToEx = VideoToExercise(video=video,
exercise=exercise,
is_deleted=False,
video_time=video_time)
videoToEx.save()
return HttpResponseRedirect(
reverse('courses.videos.views.manage_exercises',
args=(
request.POST['course_prefix'],
request.POST['course_suffix'],
video.slug,
)))
def add_existing_exercises(request):
#don't catch video DoesNotExist here because we want some tangible error action to happen if
#the video id changes in form submission, like mailing us
video = Video.objects.get(id=request.POST['video_id'])
exercise_ids = request.POST.getlist('exercise')
exercises = Exercise.objects.filter(id__in=exercise_ids)
for exercise in exercises:
video_time = 0
videoToEx = VideoToExercise(video=video, exercise=exercise, is_deleted=False, video_time=video_time, mode="draft")
videoToEx.save()
return HttpResponseRedirect(reverse('courses.videos.views.manage_exercises', args=(request.POST['course_prefix'], request.POST['course_suffix'], video.slug,)))
def manage_exercises(request, course_prefix, course_suffix, video_slug):
#Get all necessary information about the problemset
try:
common_page_data = get_common_page_data(request, course_prefix, course_suffix)
except:
raise Http404
data = {'common_page_data': common_page_data}
manage_form = ManageExercisesForm(initial={'course':common_page_data['course'].id})
try:
video = Video.objects.getByCourse(common_page_data['course']).get(slug=video_slug)
except Video.DoesNotExist:
raise Http404
videoToExs = VideoToExercise.objects.filter(video__course=common_page_data['course'], is_deleted=False, video__slug=video_slug).order_by('video_time')
used_exercises = []
exercise_attempted = False
if len(ProblemActivity.objects.filter(video_to_exercise__video=video.image)) > 0:
exercise_attempted = True
#Get the list of exercises currently in this problem set
for videoToEx in videoToExs:
used_exercises.append(videoToEx.exercise.id)
#Get all the exercises in the course but not in this problem set to list in add from existing
#Q objects allow queryset objects to be ORed together
exercises = Exercise.objects.all().filter(Q(problemSet__course=common_page_data['course'])|Q(video__course=common_page_data['course'])).exclude(id__in=used_exercises).distinct()
additional_form = AdditionalExercisesForm(initial={'course':common_page_data['course'].id}, used_exercises=exercises)
reorder_form = ReorderExercisesForm(current_exercises=videoToExs)
#Form processing action if form was submitted
if request.method == 'POST':
manage_form = ManageExercisesForm(request.POST, request.FILES)
additional_form = AdditionalExercisesForm(request.POST, used_exercises=exercises)
if manage_form.is_valid():
#don't catch video DoesNotExist here because we want some tangible error to happen if
#the video id changes in form submission, like emailing us
video = Video.objects.get(id=request.POST['video_id'])
file_content = request.FILES['file']
file_name = file_content.name
exercise = Exercise()
exercise.handle = request.POST['course_prefix'] + '--' + request.POST['course_suffix']
exercise.fileName = file_name
exercise.file.save(file_name, file_content)
exercise.save()
video_time = request.POST['video_time']
videoToEx = VideoToExercise(video=video, exercise=exercise, video_time=video_time, is_deleted=0, mode='draft')
videoToEx.save()
return HttpResponseRedirect(reverse('courses.videos.views.manage_exercises', args=(request.POST['course_prefix'], request.POST['course_suffix'], video.slug,)))
#If form was not submitted then the form should be displayed or if there were errors the page needs to be rendered again
data['manage_form'] = manage_form
data['additional_form'] = additional_form
data['reorder_form'] = reorder_form
data['course_prefix'] = course_prefix
data['course_suffix'] = course_suffix
data['video'] = video
data['videoToExs'] = videoToExs
data['exercise_attempted'] = exercise_attempted
data['exercises'] = exercises
data['exercise_attempted'] = exercise_attempted
return render_to_response('videos/manage_exercises.html', data, context_instance=RequestContext(request))
