def finish_in_progress_sessions(self, course_id, flow_id, rule_tag, now_datetime,
past_due_only):
course = Course.objects.get(id=course_id)
repo = get_course_repo(course)
sessions = (FlowSession.objects
.filter(
course=course,
flow_id=flow_id,
participation__isnull=False,
access_rules_tag=rule_tag,
in_progress=True,
))
count = 0
nsessions = sessions.count()
from course.flow import finish_flow_session_standalone
for i, session in enumerate(sessions):
from course.flow import adjust_flow_session_page_data
adjust_flow_session_page_data(repo, session, course.identifier,
respect_preview=False)
if finish_flow_session_standalone(repo, course, session,
now_datetime=now_datetime, past_due_only=past_due_only):
count += 1
self.update_state(
state='PROGRESS',
meta={'current': i, 'total': nsessions})
repo.close()
return {"message": _("%d sessions ended.") % count}
def finish_in_progress_sessions(self, course_id, flow_id, rule_tag,
now_datetime, past_due_only):
course = Course.objects.get(id=course_id)
repo = get_course_repo(course)
sessions = (FlowSession.objects.filter(
course=course,
flow_id=flow_id,
participation__isnull=False,
access_rules_tag=rule_tag,
in_progress=True,
))
count = 0
nsessions = sessions.count()
from course.flow import finish_flow_session_standalone
for i, session in enumerate(sessions):
from course.flow import adjust_flow_session_page_data
adjust_flow_session_page_data(repo,
session,
course.identifier,
respect_preview=False)
if finish_flow_session_standalone(repo,
course,
session,
now_datetime=now_datetime,
past_due_only=past_due_only):
count += 1
self.update_state(state='PROGRESS',
meta={
'current': i,
'total': nsessions
})
repo.close()
return {"message": _("%d sessions ended.") % count}
def get_flow_session_content(api_ctx, course_identifier):
# type: (APIContext, Text) -> http.HttpResponse
if not api_ctx.has_permission(pperm.view_gradebook):
raise PermissionDenied("token role does not have required permissions")
try:
session_id_str = api_ctx.request.GET["flow_session_id"]
except KeyError:
raise APIError("must specify flow_id GET parameter")
session_id = int(session_id_str)
flow_session = get_object_or_404(FlowSession, id=session_id)
if flow_session.course != api_ctx.course:
raise PermissionDenied(
"session's course does not match auth context")
from course.content import get_course_repo
from course.flow import adjust_flow_session_page_data, assemble_answer_visits
with get_course_repo(api_ctx.course) as repo:
from course.utils import FlowContext, instantiate_flow_page_with_ctx
fctx = FlowContext(repo, api_ctx.course, flow_session.flow_id)
adjust_flow_session_page_data(repo, flow_session, api_ctx.course.identifier,
fctx.flow_desc)
from course.flow import get_all_page_data
all_page_data = get_all_page_data(flow_session)
answer_visits = assemble_answer_visits(flow_session)
pages = []
for i, page_data in enumerate(all_page_data):
page = instantiate_flow_page_with_ctx(fctx, page_data)
assert i == page_data.page_ordinal
page_data_json = dict(
ordinal=i,
page_type=page_data.page_type,
group_id=page_data.group_id,
page_id=page_data.page_id,
page_data=page_data.data,
title=page_data.title,
bookmarked=page_data.bookmarked,
)
answer_json = None
grade_json = None
visit = answer_visits[i]
if visit is not None:
from course.page.base import PageContext
pctx = PageContext(api_ctx.course, repo, fctx.course_commit_sha,
flow_session)
norm_bytes_answer_tup = page.normalized_bytes_answer(
pctx, page_data.data, visit.answer)
# norm_answer needs to be JSON-encodable
norm_answer = None # type: Any
if norm_bytes_answer_tup is not None:
answer_file_ext, norm_bytes_answer = norm_bytes_answer_tup
if answer_file_ext in [".txt", ".py"]:
norm_answer = norm_bytes_answer.decode("utf-8")
elif answer_file_ext == ".json":
import json
norm_answer = json.loads(norm_bytes_answer)
else:
from base64 import b64encode
norm_answer = [answer_file_ext,
b64encode(norm_bytes_answer).decode("utf-8")]
answer_json = dict(
visit_time=visit.visit_time.isoformat(),
remote_address=repr(visit.remote_address),
user=visit.user.username if visit.user is not None else None,
impersonated_by=(visit.impersonated_by.username
if visit.impersonated_by is not None else None),
is_synthetic_visit=visit.is_synthetic,
answer_data=visit.answer,
answer=norm_answer,
)
grade = visit.get_most_recent_grade()
if grade is not None:
grade_json = dict(
grader=(grade.grader.username
if grade.grader is not None else None),
grade_time=grade.grade_time.isoformat(),
graded_at_git_commit_sha=grade.graded_at_git_commit_sha,
max_points=grade.max_points,
correctness=grade.correctness,
feedback=grade.feedback)
pages.append({
"page": page_data_json,
"answer": answer_json,
"grade": grade_json,
})
result = {
"session": flow_session_to_json(flow_session),
"pages": pages,
}
return http.JsonResponse(result, safe=False)
def grade_flow_page(pctx, flow_session_id, page_ordinal):
# type: (CoursePageContext, int, int) -> http.HttpResponse
now_datetime = get_now_or_fake_time(pctx.request)
page_ordinal = int(page_ordinal)
viewing_prev_grade = False
prev_grade_id = pctx.request.GET.get("grade_id")
if prev_grade_id is not None:
try:
prev_grade_id = int(prev_grade_id)
viewing_prev_grade = True
except ValueError:
raise SuspiciousOperation("non-integer passed for 'grade_id'")
if not pctx.has_permission(pperm.view_gradebook):
raise PermissionDenied(_("may not view grade book"))
flow_session = get_object_or_404(FlowSession, id=int(flow_session_id))
if flow_session.course.pk != pctx.course.pk:
raise SuspiciousOperation(
_("Flow session not part of specified course"))
if flow_session.participation is None:
raise SuspiciousOperation(_("Cannot grade anonymous session"))
from course.flow import adjust_flow_session_page_data
adjust_flow_session_page_data(pctx.repo,
flow_session,
pctx.course.identifier,
respect_preview=False)
fpctx = FlowPageContext(pctx.repo,
pctx.course,
flow_session.flow_id,
page_ordinal,
participation=flow_session.participation,
flow_session=flow_session,
request=pctx.request)
if fpctx.page_desc is None:
raise http.Http404()
assert fpctx.page is not None
assert fpctx.page_context is not None
# {{{ enable flow session zapping
all_flow_sessions = list(
FlowSession.objects.filter(course=pctx.course,
flow_id=flow_session.flow_id,
participation__isnull=False,
in_progress=flow_session.in_progress).
order_by(
# Datatables will default to sorting the user list
# by the first column, which happens to be the username.
# Match that sorting.
"participation__user__username",
"start_time"))
next_flow_session_id = None
prev_flow_session_id = None
for i, other_flow_session in enumerate(all_flow_sessions):
if other_flow_session.pk == flow_session.pk:
if i > 0:
prev_flow_session_id = all_flow_sessions[i - 1].id
if i + 1 < len(all_flow_sessions):
next_flow_session_id = all_flow_sessions[i + 1].id
# }}}
prev_grades = get_prev_visit_grades(pctx.course_identifier,
flow_session_id, page_ordinal)
# {{{ reproduce student view
form = None
feedback = None
answer_data = None
grade_data = None
shown_grade = None
page_expects_answer = fpctx.page.expects_answer()
if page_expects_answer:
if fpctx.prev_answer_visit is not None and prev_grade_id is None:
answer_data = fpctx.prev_answer_visit.answer
shown_grade = fpctx.prev_answer_visit.get_most_recent_grade()
if shown_grade is not None:
feedback = get_feedback_for_grade(shown_grade)
grade_data = shown_grade.grade_data
else:
feedback = None
grade_data = None
if shown_grade is not None:
prev_grade_id = shown_grade.id
elif prev_grade_id is not None:
try:
shown_grade = prev_grades.filter(id=prev_grade_id).get()
except ObjectDoesNotExist:
raise http.Http404()
feedback = get_feedback_for_grade(shown_grade)
grade_data = shown_grade.grade_data
answer_data = shown_grade.visit.answer
else:
feedback = None
from course.page.base import PageBehavior
page_behavior = PageBehavior(show_correctness=True,
show_answer=False,
may_change_answer=False)
try:
form = fpctx.page.make_form(fpctx.page_context,
fpctx.page_data.data, answer_data,
page_behavior)
except InvalidPageData as e:
messages.add_message(
pctx.request, messages.ERROR,
_("The page data stored in the database was found "
"to be invalid for the page as given in the "
"course content. Likely the course content was "
"changed in an incompatible way (say, by adding "
"an option to a choice question) without changing "
"the question ID. The precise error encountered "
"was the following: ") + str(e))
return render_course_page(pctx, "course/course-base.html", {})
if form is not None:
form_html = fpctx.page.form_to_html(pctx.request, fpctx.page_context,
form, answer_data)
else:
form_html = None
# }}}
# {{{ grading form
if (page_expects_answer and fpctx.page.is_answer_gradable()
and fpctx.prev_answer_visit is not None
and not flow_session.in_progress and not viewing_prev_grade):
request = pctx.request
if pctx.request.method == "POST":
if not pctx.has_permission(pperm.assign_grade):
raise PermissionDenied(_("may not assign grades"))
grading_form = fpctx.page.post_grading_form(
fpctx.page_context, fpctx.page_data, grade_data, request.POST,
request.FILES)
if grading_form.is_valid():
grade_data = fpctx.page.update_grade_data_from_grading_form_v2(
request, fpctx.page_context, fpctx.page_data, grade_data,
grading_form, request.FILES)
from course.utils import LanguageOverride
with LanguageOverride(pctx.course):
feedback = fpctx.page.grade(fpctx.page_context,
fpctx.page_data.data,
answer_data, grade_data)
if feedback is not None:
correctness = feedback.correctness
else:
correctness = None
feedback_json = None # type: Optional[Dict[Text, Any]]
bulk_feedback_json = None # type: Optional[Dict[Text, Any]]
if feedback is not None:
feedback_json, bulk_feedback_json = feedback.as_json()
else:
feedback_json = bulk_feedback_json = None
most_recent_grade = FlowPageVisitGrade(
visit=fpctx.prev_answer_visit,
grader=pctx.request.user,
graded_at_git_commit_sha=pctx.course_commit_sha,
grade_data=grade_data,
max_points=fpctx.page.max_points(fpctx.page_data),
correctness=correctness,
feedback=feedback_json)
prev_grade_id = _save_grade(fpctx, flow_session,
most_recent_grade,
bulk_feedback_json, now_datetime)
else:
grading_form = fpctx.page.make_grading_form(
fpctx.page_context, fpctx.page_data, grade_data)
else:
grading_form = None
grading_form_html = None # type: Optional[Text]
if grading_form is not None:
from crispy_forms.layout import Submit
grading_form.helper.form_class += " relate-grading-form"
grading_form.helper.add_input(
Submit("submit",
_("Submit"),
accesskey="s",
css_class="relate-grading-save-button"))
grading_form_html = fpctx.page.grading_form_to_html(
pctx.request, fpctx.page_context, grading_form, grade_data)
# }}}
# {{{ compute points_awarded
max_points = None
points_awarded = None
if (page_expects_answer and fpctx.page.is_answer_gradable()):
max_points = fpctx.page.max_points(fpctx.page_data)
if feedback is not None and feedback.correctness is not None:
points_awarded = max_points * feedback.correctness
# }}}
grading_rule = get_session_grading_rule(flow_session, fpctx.flow_desc,
get_now_or_fake_time(pctx.request))
if grading_rule.grade_identifier is not None:
grading_opportunity = get_flow_grading_opportunity(
pctx.course, flow_session.flow_id, fpctx.flow_desc,
grading_rule.grade_identifier, grading_rule.
grade_aggregation_strategy) # type: Optional[GradingOpportunity]
else:
grading_opportunity = None
return render_course_page(
pctx,
"course/grade-flow-page.html",
{
"flow_identifier":
fpctx.flow_id,
"flow_session":
flow_session,
"flow_desc":
fpctx.flow_desc,
"page_ordinal":
fpctx.page_ordinal,
"page_data":
fpctx.page_data,
"body":
fpctx.page.body(fpctx.page_context, fpctx.page_data.data),
"form":
form,
"form_html":
form_html,
"feedback":
feedback,
"max_points":
max_points,
"points_awarded":
points_awarded,
"shown_grade":
shown_grade,
"prev_grade_id":
prev_grade_id,
"expects_answer":
page_expects_answer,
"grading_opportunity":
grading_opportunity,
"prev_flow_session_id":
prev_flow_session_id,
"next_flow_session_id":
next_flow_session_id,
"grading_form":
grading_form,
"grading_form_html":
grading_form_html,
"correct_answer":
fpctx.page.correct_answer(fpctx.page_context, fpctx.page_data.data,
answer_data, grade_data),
# Wrappers used by JavaScript template (tmpl) so as not to
# conflict with Django template's tag wrapper
"JQ_OPEN":
'{%',
'JQ_CLOSE':
'%}',
})
def get_flow_session_content(api_ctx, course_identifier):
# type: (APIContext, Text) -> http.HttpResponse
if not api_ctx.has_permission(pperm.view_gradebook):
raise PermissionDenied("token role does not have required permissions")
try:
session_id_str = api_ctx.request.GET["flow_session_id"]
except KeyError:
raise APIError("must specify flow_id GET parameter")
session_id = int(session_id_str)
flow_session = get_object_or_404(FlowSession, id=session_id)
if flow_session.course != api_ctx.course:
raise PermissionDenied(
"session's course does not match auth context")
from course.content import get_course_repo
from course.flow import adjust_flow_session_page_data, assemble_answer_visits
with get_course_repo(api_ctx.course) as repo:
from course.utils import FlowContext, instantiate_flow_page_with_ctx
fctx = FlowContext(repo, api_ctx.course, flow_session.flow_id)
adjust_flow_session_page_data(repo, flow_session, api_ctx.course.identifier,
fctx.flow_desc)
from course.flow import get_all_page_data
all_page_data = get_all_page_data(flow_session)
answer_visits = assemble_answer_visits(flow_session)
pages = []
for i, page_data in enumerate(all_page_data):
page = instantiate_flow_page_with_ctx(fctx, page_data)
assert i == page_data.page_ordinal
page_data_json = dict(
ordinal=i,
page_type=page_data.page_type,
group_id=page_data.group_id,
page_id=page_data.page_id,
page_data=page_data.data,
title=page_data.title,
bookmarked=page_data.bookmarked,
)
answer_json = None
grade_json = None
visit = answer_visits[i]
if visit is not None:
from course.page.base import PageContext
pctx = PageContext(api_ctx.course, repo, fctx.course_commit_sha,
flow_session)
norm_bytes_answer_tup = page.normalized_bytes_answer(
pctx, page_data.data, visit.answer)
# norm_answer needs to be JSON-encodable
norm_answer = None # type: Any
if norm_bytes_answer_tup is not None:
answer_file_ext, norm_bytes_answer = norm_bytes_answer_tup
if answer_file_ext in [".txt", ".py"]:
norm_answer = norm_bytes_answer.decode("utf-8")
elif answer_file_ext == ".json":
import json
norm_answer = json.loads(norm_bytes_answer)
else:
from base64 import b64encode
norm_answer = [answer_file_ext, b64encode(norm_bytes_answer)]
answer_json = dict(
visit_time=visit.visit_time.isoformat(),
remote_address=repr(visit.remote_address),
user=visit.user.username if visit.user is not None else None,
impersonated_by=(visit.impersonated_by.username
if visit.impersonated_by is not None else None),
is_synthetic_visit=visit.is_synthetic,
answer_data=visit.answer,
answer=norm_answer,
)
grade = visit.get_most_recent_grade()
if grade is not None:
grade_json = dict(
grader=grade.grader,
grade_time=grade.grade_time.isoformat(),
graded_at_git_commit_sha=grade.graded_at_git_commit_sha,
max_points=grade.max_points,
correctness=grade.correctness,
feedback=grade.feedback)
pages.append({
"page": page_data_json,
"answer": answer_json,
"grade": grade_json,
})
result = {
"session": flow_session_to_json(flow_session),
"pages": pages,
}
return http.JsonResponse(result, safe=False)
def grade_flow_page(pctx, flow_session_id, page_ordinal):
now_datetime = get_now_or_fake_time(pctx.request)
page_ordinal = int(page_ordinal)
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied(
_("must be instructor or TA to view grades"))
flow_session = get_object_or_404(FlowSession, id=int(flow_session_id))
if flow_session.course.pk != pctx.course.pk:
raise SuspiciousOperation(
_("Flow session not part of specified course"))
if flow_session.participation is None:
raise SuspiciousOperation(
_("Cannot grade anonymous session"))
fpctx = FlowPageContext(pctx.repo, pctx.course, flow_session.flow_id,
page_ordinal, participation=flow_session.participation,
flow_session=flow_session, request=pctx.request)
if fpctx.page_desc is None:
raise http.Http404()
from course.flow import adjust_flow_session_page_data
adjust_flow_session_page_data(pctx.repo, flow_session,
pctx.course.identifier, fpctx.flow_desc)
# {{{ enable flow session zapping
all_flow_sessions = list(FlowSession.objects
.filter(
course=pctx.course,
flow_id=flow_session.flow_id,
participation__isnull=False,
in_progress=flow_session.in_progress)
.order_by(
# Datatables will default to sorting the user list
# by the first column, which happens to be the username.
# Match that sorting.
"participation__user__username",
"start_time"))
next_flow_session_id = None
prev_flow_session_id = None
for i, other_flow_session in enumerate(all_flow_sessions):
if other_flow_session.pk == flow_session.pk:
if i > 0:
prev_flow_session_id = all_flow_sessions[i-1].id
if i + 1 < len(all_flow_sessions):
next_flow_session_id = all_flow_sessions[i+1].id
# }}}
# {{{ reproduce student view
form = None
feedback = None
answer_data = None
grade_data = None
most_recent_grade = None
if fpctx.page.expects_answer():
if fpctx.prev_answer_visit is not None:
answer_data = fpctx.prev_answer_visit.answer
most_recent_grade = fpctx.prev_answer_visit.get_most_recent_grade()
if most_recent_grade is not None:
feedback = get_feedback_for_grade(most_recent_grade)
grade_data = most_recent_grade.grade_data
else:
feedback = None
grade_data = None
else:
feedback = None
from course.page.base import PageBehavior
page_behavior = PageBehavior(
show_correctness=True,
show_answer=False,
may_change_answer=False)
form = fpctx.page.make_form(
fpctx.page_context, fpctx.page_data.data,
answer_data, page_behavior)
if form is not None:
form_html = fpctx.page.form_to_html(
pctx.request, fpctx.page_context, form, answer_data)
else:
form_html = None
# }}}
# {{{ grading form
if (fpctx.page.expects_answer()
and fpctx.page.is_answer_gradable()
and fpctx.prev_answer_visit is not None
and not flow_session.in_progress):
request = pctx.request
if pctx.request.method == "POST":
grading_form = fpctx.page.post_grading_form(
fpctx.page_context, fpctx.page_data, grade_data,
request.POST, request.FILES)
if grading_form.is_valid():
grade_data = fpctx.page.update_grade_data_from_grading_form(
fpctx.page_context, fpctx.page_data, grade_data,
grading_form, request.FILES)
with translation.override(settings.RELATE_ADMIN_EMAIL_LOCALE):
feedback = fpctx.page.grade(
fpctx.page_context, fpctx.page_data,
answer_data, grade_data)
if feedback is not None:
correctness = feedback.correctness
else:
correctness = None
if feedback is not None:
feedback_json, bulk_feedback_json = feedback.as_json()
else:
feedback_json = bulk_feedback_json = None
most_recent_grade = FlowPageVisitGrade(
visit=fpctx.prev_answer_visit,
grader=pctx.request.user,
graded_at_git_commit_sha=pctx.course_commit_sha,
grade_data=grade_data,
max_points=fpctx.page.max_points(fpctx.page_data),
correctness=correctness,
feedback=feedback_json)
_save_grade(fpctx, flow_session, most_recent_grade,
bulk_feedback_json, now_datetime)
else:
grading_form = fpctx.page.make_grading_form(
fpctx.page_context, fpctx.page_data, grade_data)
else:
grading_form = None
if grading_form is not None:
from crispy_forms.layout import Submit
grading_form.helper.form_class += " relate-grading-form"
grading_form.helper.add_input(
Submit(
"submit", _("Submit"),
accesskey="s",
css_class="relate-grading-save-button"))
grading_form_html = fpctx.page.grading_form_to_html(
pctx.request, fpctx.page_context, grading_form, grade_data)
else:
grading_form_html = None
# }}}
# {{{ compute points_awarded
max_points = None
points_awarded = None
if (fpctx.page.expects_answer()
and fpctx.page.is_answer_gradable()):
max_points = fpctx.page.max_points(fpctx.page_data)
if feedback is not None and feedback.correctness is not None:
points_awarded = max_points * feedback.correctness
# }}}
grading_rule = get_session_grading_rule(
flow_session, flow_session.participation.role,
fpctx.flow_desc, get_now_or_fake_time(pctx.request))
if grading_rule.grade_identifier is not None:
grading_opportunity = get_flow_grading_opportunity(
pctx.course, flow_session.flow_id, fpctx.flow_desc,
grading_rule)
else:
grading_opportunity = None
return render_course_page(
pctx,
"course/grade-flow-page.html",
{
"flow_identifier": fpctx.flow_id,
"flow_session": flow_session,
"flow_desc": fpctx.flow_desc,
"ordinal": fpctx.ordinal,
"page_data": fpctx.page_data,
"body": fpctx.page.body(
fpctx.page_context, fpctx.page_data.data),
"form": form,
"form_html": form_html,
"feedback": feedback,
"max_points": max_points,
"points_awarded": points_awarded,
"most_recent_grade": most_recent_grade,
"grading_opportunity": grading_opportunity,
"prev_flow_session_id": prev_flow_session_id,
"next_flow_session_id": next_flow_session_id,
"grading_form": grading_form,
"grading_form_html": grading_form_html,
"correct_answer": fpctx.page.correct_answer(
fpctx.page_context, fpctx.page_data.data,
answer_data, grade_data),
})
