def activity_on_course_up_view(request, slug):
"""
Increase by 1 point the rank of the activity on the course.
.. caution:: Changing the order or activities in a course requires the **change_course** permission.
.. important:: The activity to change is given as a POST parameter called **activity** and contains the resource
primary key.
:param request: django request object
:type request: django.http.HttpRequest
:param slug: course slug
:type slug: str
:return: the course detail view
"""
if request.method == "POST":
# Retrieve objects : course, activity, the current course activity
course = get_object_or_404(Course, slug=slug)
if course.user_can_change(request.user):
activity_pk_form = ActivityPKForm(request.POST or None)
if activity_pk_form.is_valid():
activity = get_object_or_404(
Activity, pk=activity_pk_form.cleaned_data.get('activity'))
course_activity = get_object_or_404(CourseActivity,
course=course,
activity=activity)
previous_course_activity = get_object_or_404(
CourseActivity,
course=course,
rank=course_activity.rank - 1)
# Switch course activity ranks
course_activity.rank = previous_course_activity.rank
previous_course_activity.rank += 1
# Save objects
course_activity.save()
previous_course_activity.save()
messages.success(
request,
_("Activity “%(activity)s” was repositioned and is now the activity n°%(rank)d on this course."
) % {
'activity': activity,
'rank': course_activity.rank
})
return redirect("learning:course/detail", slug=course.slug)
return HttpResponseNotFound(
activity_pk_form.errors.get('activity'))
# User cannot change the course
messages.error(
request,
_("You do not have the required permission to change activities of this course."
))
raise PermissionDenied()
# Method used is not POST, so it’s not allowed
return HttpResponseNotAllowed(['POST'])
def activity_on_course_delete_view(request, slug):
"""
Delete an activity which is currently attached to a course. The link between the activity and the course
will be removed, as well as the activity itself.
.. caution:: Changing the activities in a course requires the **change_course** permission.
.. important:: The activity to change is given as a POST parameter called **activity** and contains the resource primary key.
:param request: django request object
:type request: django.http.HttpRequest
:param slug: course slug
:type slug: str
:return: the course detail view
"""
if request.method == "POST":
course = get_object_or_404(Course, slug=slug)
activity_pk_form = ActivityPKForm(request.POST or None)
if activity_pk_form.is_valid():
activity = get_object_or_404(
Activity, pk=activity_pk_form.cleaned_data.get('activity'))
if course.user_can_change(
request.user) and activity.user_can_delete(request.user):
try:
course.remove_activity(activity)
activity.delete()
messages.success(
request,
_("The activity “%(activity)s” has been removed from this course. "
"The activity has also been removed.") %
{'activity': activity})
except ChangeActivityOnCourseError as ex:
messages.error(request, ex)
return redirect("learning:course/detail", slug=course.slug)
# Not permission to change delete the activity
messages.error(
request,
_("You do not have the required permissions to delete this activity."
))
raise PermissionDenied()
return HttpResponseNotFound(activity_pk_form.errors.get('activity'))
# Method is not allowed
return HttpResponseNotAllowed(['POST'])
def activity_on_course_unlink_view(request, slug):
"""
Unlink an activity from a course. This means the activity will no longer be attached to the course. The activity
is not removed.
.. caution:: Changing the activities in a course requires the **change_course** permission.
.. important:: The activity to change is given as a POST parameter called **activity** and contains the resource primary key.
:param request: django request object
:type request: django.http.HttpRequest
:param slug: course slug
:type slug: str
:return: the course detail view
"""
if request.method == "POST":
course = get_object_or_404(Course, slug=slug)
if course.user_can_change(request.user):
# noinspection PyCallByClass
activity_pk_form = ActivityPKForm(request.POST or None)
if activity_pk_form.is_valid():
activity = get_object_or_404(
Activity, pk=activity_pk_form.cleaned_data.get('activity'))
try:
course.remove_activity(activity)
messages.success(
request,
_("The activity “%(activity)s” has been removed from this course. "
"The activity itself has not been removed.") %
{'activity': activity})
except ChangeActivityOnCourseError as ex:
messages.error(request, ex)
return redirect("learning:course/detail", slug=course.slug)
return HttpResponseNotFound(
activity_pk_form.errors.get('activity'))
# Not permission to change the course
messages.error(
request,
_("You do not have the required permissions to unlink this activity from this course."
))
raise PermissionDenied()
# Method is not allowed
return HttpResponseNotAllowed(['POST'])
def post(self, request, *args, **kwargs):
activity_pk_form = ActivityPKForm(self.request.POST or None)
if activity_pk_form.is_valid():
activity = get_object_or_404(
Activity, pk=activity_pk_form.cleaned_data.get('activity'))
try:
self.object.add_activity(activity)
messages.success(
self.request,
_('Activity “%(activity)s” added to the course “%(course)s”'
) % {
'activity': activity,
'course': self.object
})
except LearningError as ex:
messages.error(self.request, ex)
return redirect("learning:course/detail/activity/attach",
slug=self.object.slug)
return HttpResponseNotFound(activity_pk_form.errors.get('activity'))