def view_reopen_session(pctx, flow_session_id, opportunity_id):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant
]:
raise PermissionDenied()
request = pctx.request
session = get_object_or_404(FlowSession, id=int(flow_session_id))
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, session.flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if request.method == "POST":
form = ReopenSessionForm(flow_desc, session.access_rules_tag,
request.POST, request.FILES)
if form.is_valid():
new_access_rules_tag = form.cleaned_data["set_access_rules_tag"]
if new_access_rules_tag == NONE_SESSION_TAG:
new_access_rules_tag = None
session.access_rules_tag = new_access_rules_tag
from relate.utils import (local_now, as_local_time,
format_datetime_local)
session.append_comment(
ugettext("Session reopened at %(now)s by %(user)s, "
"previous completion time was '%(completion_time)s': "
"%(comment)s.") % {
"now":
format_datetime_local(local_now()),
"user":
pctx.request.user,
"completion_time":
format_datetime_local(
as_local_time(session.completion_time)),
"comment":
form.cleaned_data["comment"]
})
session.save()
from course.flow import reopen_session
reopen_session(session, suppress_log=True)
return redirect("relate-view_single_grade", pctx.course.identifier,
session.participation.id, opportunity_id)
else:
form = ReopenSessionForm(flow_desc, session.access_rules_tag)
return render(request, "generic-form.html", {
"form": form,
"form_description": _("Reopen session")
})
def __init__(self,
repo,
course,
flow_id,
participation=None,
flow_session=None):
"""*participation* and *flow_session* are not stored and only used
to figure out versioning of the flow content.
"""
self.repo = repo
self.course = course
self.flow_id = flow_id
from django.core.exceptions import ObjectDoesNotExist
self.course_commit_sha = get_course_commit_sha(self.course,
participation)
try:
self.flow_desc = get_flow_desc(self.repo, self.course, flow_id,
self.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if flow_session is not None:
from course.content import adjust_flow_session_page_data
adjust_flow_session_page_data(repo, flow_session,
course.identifier, self.flow_desc)
def __init__(self, repo, course, flow_id,
participation=None, flow_session=None):
"""*participation* and *flow_session* are not stored and only used
to figure out versioning of the flow content.
"""
self.repo = repo
self.course = course
self.flow_id = flow_id
from django.core.exceptions import ObjectDoesNotExist
self.course_commit_sha = get_course_commit_sha(
self.course, participation)
try:
self.flow_desc = get_flow_desc(self.repo, self.course,
flow_id, self.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if flow_session is not None:
from course.content import adjust_flow_session_page_data
adjust_flow_session_page_data(repo, flow_session,
course.identifier, self.flow_desc)
def get_flow_desc_from_cache(self, commit_sha):
try:
return self.flow_desc_cache[commit_sha]
except KeyError:
flow_desc = get_flow_desc(self.repo, self.course,
self.flow_id, commit_sha)
self.flow_desc_cache[commit_sha] = flow_desc
return flow_desc
def get_flow_desc_from_cache(self, commit_sha):
try:
return self.flow_desc_cache[commit_sha]
except KeyError:
flow_desc = get_flow_desc(self.repo, self.course,
self.flow_id, commit_sha)
self.flow_desc_cache[commit_sha] = flow_desc
return flow_desc
def view_reopen_session(pctx, flow_session_id, opportunity_id):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied()
request = pctx.request
session = get_object_or_404(FlowSession, id=int(flow_session_id))
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, session.flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if request.method == "POST":
form = ReopenSessionForm(flow_desc, session.access_rules_tag,
request.POST, request.FILES)
if form.is_valid():
new_access_rules_tag = form.cleaned_data["set_access_rules_tag"]
if new_access_rules_tag == NONE_SESSION_TAG:
new_access_rules_tag = None
session.access_rules_tag = new_access_rules_tag
from relate.utils import (
local_now, as_local_time,
format_datetime_local)
session.append_comment(
ugettext("Session reopened at %(now)s by %(user)s, "
"previous completion time was '%(completion_time)s': "
"%(comment)s.") % {
"now": format_datetime_local(local_now()),
"user": pctx.request.user,
"completion_time": format_datetime_local(
as_local_time(session.completion_time)),
"comment": form.cleaned_data["comment"]
})
session.save()
from course.flow import reopen_session
reopen_session(session, suppress_log=True)
return redirect("relate-view_single_grade",
pctx.course.identifier,
session.participation.id,
opportunity_id)
else:
form = ReopenSessionForm(flow_desc, session.access_rules_tag)
return render(request, "generic-form.html", {
"form": form,
"form_description": _("Reopen session")
})
def __init__(self, request, course_identifier, flow_identifier,
flow_session=None):
CoursePageContext.__init__(self, request, course_identifier)
self.flow_session = flow_session
self.flow_identifier = flow_identifier
from course.content import get_flow_commit_sha
from django.core.exceptions import ObjectDoesNotExist
# Fetch 'current' version of the flow to compute permissions
# and versioning rules.
# Fall back to 'old' version if current git version does not
# contain this flow any more.
try:
current_flow_desc_sha = self.course_commit_sha
current_flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, current_flow_desc_sha)
except ObjectDoesNotExist:
if self.flow_session is None:
raise http.Http404()
current_flow_desc_sha = self.flow_session.active_git_commit_sha.encode()
current_flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, current_flow_desc_sha)
self.flow_commit_sha = get_flow_commit_sha(
self.course, self.participation,
current_flow_desc, self.flow_session)
if self.flow_commit_sha == current_flow_desc_sha:
self.flow_desc = current_flow_desc
else:
self.flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, self.flow_commit_sha)
# {{{ figure out permissions
from course.views import get_now_or_fake_time
self.permissions, self.stipulations = get_flow_permissions(
self.course, self.participation, self.role,
flow_identifier, current_flow_desc,
get_now_or_fake_time(request))
def __init__(self, repo, course, flow_identifier,
participation=None, flow_session=None):
"""*participation* and *flow_session* are not stored and only used
to figure out versioning of the flow content.
"""
self.repo = repo
self.course = course
self.flow_identifier = flow_identifier
from course.content import get_flow_commit_sha
from django.core.exceptions import ObjectDoesNotExist
# Fetch 'current' version of the flow to compute permissions
# and versioning rules.
# Fall back to 'old' version if current git version does not
# contain this flow any more.
self.course_commit_sha = get_course_commit_sha(
self.course, participation)
try:
current_flow_desc_sha = self.course_commit_sha
self.current_flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, current_flow_desc_sha)
except ObjectDoesNotExist:
if flow_session is None:
raise http.Http404()
current_flow_desc_sha = flow_session.active_git_commit_sha.encode()
self.current_flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, current_flow_desc_sha)
self.flow_commit_sha = get_flow_commit_sha(
self.course, participation,
self.current_flow_desc, flow_session)
if self.flow_commit_sha == current_flow_desc_sha:
self.flow_desc = self.current_flow_desc
else:
self.flow_desc = get_flow_desc(self.repo, self.course,
flow_identifier, self.flow_commit_sha)
def clean(self):
super(FlowRuleException, self).clean()
if (self.kind == flow_rule_kind.grading
and self.expiration is not None):
raise ValidationError(_("grading rules may not expire"))
from course.validation import (
ValidationError as ContentValidationError,
validate_session_start_rule,
validate_session_access_rule,
validate_session_grading_rule,
ValidationContext)
from course.content import (get_course_repo,
get_course_commit_sha,
get_flow_desc)
from relate.utils import dict_to_struct
rule = dict_to_struct(self.rule)
repo = get_course_repo(self.participation.course)
commit_sha = get_course_commit_sha(
self.participation.course, self.participation)
ctx = ValidationContext(
repo=repo,
commit_sha=commit_sha)
flow_desc = get_flow_desc(repo,
self.participation.course,
self.flow_id, commit_sha)
tags = None
if hasattr(flow_desc, "rules"):
tags = getattr(flow_desc.rules, "tags", None)
try:
if self.kind == flow_rule_kind.start:
validate_session_start_rule(ctx, unicode(self), rule, tags)
elif self.kind == flow_rule_kind.access:
validate_session_access_rule(ctx, unicode(self), rule, tags)
elif self.kind == flow_rule_kind.grading:
validate_session_grading_rule(ctx, unicode(self), rule, tags)
else:
# the rule refers to FlowRuleException rule
raise ValidationError(_("invalid rule kind: ")+self.kind)
except ContentValidationError as e:
# the rule refers to FlowRuleException rule
raise ValidationError(_("invalid existing_session_rules: ")+str(e))
def grant_exception_stage_2(pctx, participation_id, flow_id):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied("must be instructor or TA to grant exceptions")
participation = get_object_or_404(Participation, id=participation_id)
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if not hasattr(flow_desc, "access_rules"):
messages.add_message(pctx.request, messages.ERROR,
"Flow '%s' does not declare access rules."
% flow_id)
return redirect("course.views.grant_exception",
pctx.course.identifier)
base_ruleset_choices = [rule.id for rule in flow_desc.access_rules]
request = pctx.request
if request.method == "POST":
form = ExceptionStage2Form(base_ruleset_choices, request.POST)
if form.is_valid():
return redirect(
"course.views.grant_exception_stage_3",
pctx.course.identifier,
participation.id,
flow_id,
form.cleaned_data["base_ruleset"])
else:
form = ExceptionStage2Form(base_ruleset_choices)
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_description": "Grant Exception",
})
def __init__(self, repo, course, flow_id, participation=None):
# type: (Repo_ish, Course, Text, Optional[Participation]) -> None
"""*participation* and *flow_session* are not stored and only used
to figure out versioning of the flow content.
"""
self.repo = repo
self.course = course
self.flow_id = flow_id
from django.core.exceptions import ObjectDoesNotExist
self.course_commit_sha = get_course_commit_sha(self.course,
participation)
try:
self.flow_desc = get_flow_desc(self.repo, self.course, flow_id,
self.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
def clean(self):
if (self.kind == flow_rule_kind.grading
and self.expiration is not None):
raise ValidationError("grading rules may not expire")
from course.validation import (ValidationError as
ContentValidationError,
validate_session_start_rule,
validate_session_access_rule,
validate_session_grading_rule,
ValidationContext)
from course.content import (get_course_repo, get_course_commit_sha,
get_flow_desc)
from relate.utils import dict_to_struct
rule = dict_to_struct(self.rule)
repo = get_course_repo(self.participation.course)
commit_sha = get_course_commit_sha(self.participation.course,
self.participation)
ctx = ValidationContext(repo=repo, commit_sha=commit_sha)
flow_desc = get_flow_desc(repo, self.participation.course,
self.flow_id, commit_sha)
tags = None
if hasattr(flow_desc, "rules"):
tags = getattr(flow_desc.rules, "tags", None)
try:
if self.kind == flow_rule_kind.start:
validate_session_start_rule(ctx, unicode(self), rule, tags)
elif self.kind == flow_rule_kind.access:
validate_session_access_rule(ctx, unicode(self), rule, tags)
elif self.kind == flow_rule_kind.grading:
validate_session_grading_rule(ctx, unicode(self), rule, tags)
else:
raise ValidationError("invalid rule kind: " + self.kind)
except ContentValidationError as e:
raise ValidationError("invalid existing_session_rules: " + str(e))
def __init__(self, repo, course, flow_id, participation=None):
# type: (Repo_ish, Course, Text, Optional[Participation]) -> None
"""*participation* and *flow_session* are not stored and only used
to figure out versioning of the flow content.
"""
self.repo = repo
self.course = course
self.flow_id = flow_id
from django.core.exceptions import ObjectDoesNotExist
self.course_commit_sha = get_course_commit_sha(
self.course, participation)
try:
self.flow_desc = get_flow_desc(self.repo, self.course,
flow_id, self.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
def _get_current_access_rule(participation, flow_id):
course = participation.course
from course.content import (
get_course_repo,
get_course_commit_sha,
get_flow_desc)
repo = get_course_repo(course)
course_commit_sha = get_course_commit_sha(course, participation)
try:
flow_desc = get_flow_desc(repo, course,
flow_id.encode(), course_commit_sha)
except ObjectDoesNotExist:
return None
else:
from course.utils import get_current_flow_access_rule
from django.utils.timezone import now
return get_current_flow_access_rule(course, participation,
participation.role, flow_id, flow_desc,
now(), rule_id=None, use_exceptions=False)
def view_single_grade(pctx, participation_id, opportunity_id):
from course.views import get_now_or_fake_time
now_datetime = get_now_or_fake_time(pctx.request)
participation = get_object_or_404(Participation,
id=int(participation_id))
if participation.course != pctx.course:
raise SuspiciousOperation("participation does not match course")
opportunity = get_object_or_404(GradingOpportunity, id=int(opportunity_id))
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
if not opportunity.shown_in_grade_book:
messages.add_message(pctx.request, messages.INFO,
"This grade is not shown in the grade book.")
if not opportunity.shown_in_student_grade_book:
messages.add_message(pctx.request, messages.INFO,
"This grade is not shown in the student grade book.")
elif pctx.role == participation_role.student:
if participation != pctx.participation:
raise PermissionDenied("may not view other people's grades")
if not (opportunity.shown_in_grade_book
and opportunity.shown_in_student_grade_book):
raise PermissionDenied("grade has not been released")
else:
raise PermissionDenied()
# {{{ modify sessions buttons
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
allow_session_actions = True
request = pctx.request
if pctx.request.method == "POST":
action_re = re.compile("^(expire|end|reopen|regrade)_([0-9]+)$")
for key in request.POST.keys():
action_match = action_re.match(key)
if action_match:
break
if not action_match:
raise SuspiciousOperation("unknown action")
session = FlowSession.objects.get(id=int(action_match.group(2)))
op = action_match.group(1)
from course.flow import (
reopen_session,
regrade_session,
expire_flow_session_standalone,
finish_flow_session_standalone)
try:
if op == "expire":
expire_flow_session_standalone(
pctx.repo, pctx.course, session, now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
"Session expired.")
elif op == "end":
finish_flow_session_standalone(
pctx.repo, pctx.course, session,
now_datetime=now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
"Session ended.")
elif op == "regrade":
regrade_session(
pctx.repo, pctx.course, session)
messages.add_message(pctx.request, messages.SUCCESS,
"Session regraded.")
elif op == "reopen":
reopen_session(session)
messages.add_message(pctx.request, messages.SUCCESS,
"Session reopened.")
else:
raise SuspiciousOperation("invalid session operation")
except Exception as e:
messages.add_message(pctx.request, messages.ERROR,
"Error: %s %s" % (type(e).__name__, str(e)))
else:
allow_session_actions = False
# }}}
grade_changes = list(GradeChange.objects
.filter(
opportunity=opportunity,
participation=participation)
.order_by("grade_time")
.prefetch_related("participation")
.prefetch_related("participation__user")
.prefetch_related("creator")
.prefetch_related("opportunity"))
state_machine = GradeStateMachine()
state_machine.consume(grade_changes, set_is_superseded=True)
flow_grade_aggregation_strategy_text = None
if opportunity.flow_id:
flow_sessions = list(FlowSession.objects
.filter(
participation=participation,
flow_id=opportunity.flow_id,
)
.order_by("start_time"))
# {{{ fish out grade rules
from course.content import get_flow_desc
flow_desc = get_flow_desc(
pctx.repo, pctx.course, opportunity.flow_id,
pctx.course_commit_sha)
from course.utils import (
get_flow_access_rules,
get_relevant_rules)
all_flow_rules = get_flow_access_rules(pctx.course,
participation, opportunity.flow_id, flow_desc)
relevant_flow_rules = get_relevant_rules(
all_flow_rules, pctx.participation.role, now())
if hasattr(flow_desc, "grade_aggregation_strategy"):
from course.models import GRADE_AGGREGATION_STRATEGY_CHOICES
flow_grade_aggregation_strategy_text = (
dict(GRADE_AGGREGATION_STRATEGY_CHOICES)
[flow_desc.grade_aggregation_strategy])
# }}}
else:
flow_sessions = None
relevant_flow_rules = None
return render_course_page(pctx, "course/gradebook-single.html", {
"opportunity": opportunity,
"grade_participation": participation,
"grade_state_change_types": grade_state_change_types,
"grade_changes": grade_changes,
"state_machine": state_machine,
"flow_sessions": flow_sessions,
"allow_session_actions": allow_session_actions,
"show_page_grades": pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant
],
"flow_rules": relevant_flow_rules,
"flow_grade_aggregation_strategy": flow_grade_aggregation_strategy_text,
})
def make_page_answer_stats_list(pctx, flow_identifier):
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_identifier,
pctx.course_commit_sha)
is_multiple_submit = is_flow_multiple_submit(flow_desc)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_identifier)
page_info_list = []
for group_desc in flow_desc.groups:
for page_desc in group_desc.pages:
points = 0
count = 0
visits = (FlowPageVisit.objects
.filter(
flow_session__flow_id=flow_identifier,
page_data__group_id=group_desc.id,
page_data__page_id=page_desc.id,
is_graded_answer=True,
))
if is_multiple_submit and connection.features.can_distinct_on_fields:
visits = (visits
.distinct("page_data")
.order_by("page_data", "-visit_time"))
visits = (visits
.prefetch_related("flow_session")
.prefetch_related("page_data"))
title = None
for visit in visits:
flow_commit_sha = get_flow_commit_sha(
pctx.course, pctx.participation, flow_desc,
visit.flow_session)
page = page_cache.get_page(group_desc.id, page_desc.id,
flow_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=flow_commit_sha)
title = page.title(grading_page_context, visit.page_data.data)
answer_feedback = visit.get_most_recent_feedback()
if (answer_feedback is not None
and answer_feedback.correctness is not None):
count += 1
points += answer_feedback.correctness
page_info_list.append(
PageAnswerStats(
group_id=group_desc.id,
page_id=page_desc.id,
title=title,
average_correctness=safe_div(points, count),
answer_count=count,
url=reverse(
"course.analytics.page_analytics",
args=(
pctx.course_identifier,
flow_identifier,
group_desc.id,
page_desc.id,
))))
return page_info_list
def page_analytics(pctx, flow_id, group_id, page_id):
if pctx.role not in [
participation_role.teaching_assistant,
participation_role.instructor,
participation_role.observer,
]:
raise PermissionDenied(_("must be at least TA to view analytics"))
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
restrict_to_first_attempt = int(
bool(pctx.request.GET.get("restrict_to_first_attempt") == "1"))
is_multiple_submit = is_flow_multiple_submit(flow_desc)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
visits = (FlowPageVisit.objects
.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_id,
page_data__page_id=page_id,
is_submitted_answer=True,
))
if connection.features.can_distinct_on_fields:
if restrict_to_first_attempt:
visits = (visits
.distinct("flow_session__participation__id")
.order_by("flow_session__participation__id", "visit_time"))
elif is_multiple_submit:
visits = (visits
.distinct("page_data__id")
.order_by("page_data__id", "-visit_time"))
visits = (visits
.select_related("flow_session")
.select_related("page_data"))
normalized_answer_and_correctness_to_count = {}
title = None
body = None
total_count = 0
graded_count = 0
for visit in visits:
page = page_cache.get_page(group_id, page_id, pctx.course_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
title = page.title(grading_page_context, visit.page_data.data)
body = page.body(grading_page_context, visit.page_data.data)
normalized_answer = page.normalized_answer(
grading_page_context, visit.page_data.data, visit.answer)
answer_feedback = visit.get_most_recent_feedback()
if answer_feedback is not None:
key = (normalized_answer, answer_feedback.correctness)
normalized_answer_and_correctness_to_count[key] = \
normalized_answer_and_correctness_to_count.get(key, 0) + 1
graded_count += 1
else:
key = (normalized_answer, None)
normalized_answer_and_correctness_to_count[key] = \
normalized_answer_and_correctness_to_count.get(key, 0) + 1
total_count += 1
answer_stats = []
for (normalized_answer, correctness), count in \
normalized_answer_and_correctness_to_count.iteritems():
answer_stats.append(
AnswerStats(
normalized_answer=normalized_answer,
correctness=correctness,
count=count,
percentage=safe_div(100 * count, total_count)))
answer_stats = sorted(
answer_stats,
key=lambda astats: astats.percentage,
reverse=True)
return render_course_page(pctx, "course/analytics-page.html", {
"flow_identifier": flow_id,
"group_id": group_id,
"page_id": page_id,
"title": title,
"body": body,
"answer_stats_list": answer_stats,
"restrict_to_first_attempt": restrict_to_first_attempt,
})
def view_single_grade(pctx, participation_id, opportunity_id):
now_datetime = get_now_or_fake_time(pctx.request)
participation = get_object_or_404(Participation,
id=int(participation_id))
if participation.course != pctx.course:
raise SuspiciousOperation(_("participation does not match course"))
opportunity = get_object_or_404(GradingOpportunity, id=int(opportunity_id))
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
if not opportunity.shown_in_grade_book:
messages.add_message(pctx.request, messages.INFO,
_("This grade is not shown in the grade book."))
if not opportunity.shown_in_student_grade_book:
messages.add_message(pctx.request, messages.INFO,
_("This grade is not shown in the student grade book."))
elif pctx.role == participation_role.student:
if participation != pctx.participation:
raise PermissionDenied(_("may not view other people's grades"))
if not (opportunity.shown_in_grade_book
and opportunity.shown_in_student_grade_book):
raise PermissionDenied(_("grade has not been released"))
else:
raise PermissionDenied()
# {{{ modify sessions buttons
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
allow_session_actions = True
request = pctx.request
if pctx.request.method == "POST":
action_re = re.compile("^([a-z]+)_([0-9]+)$")
for key in request.POST.keys():
action_match = action_re.match(key)
if action_match:
break
if not action_match:
raise SuspiciousOperation(_("unknown action"))
session = FlowSession.objects.get(id=int(action_match.group(2)))
op = action_match.group(1)
from course.flow import (
regrade_session,
recalculate_session_grade,
expire_flow_session_standalone,
finish_flow_session_standalone)
try:
if op == "expire":
expire_flow_session_standalone(
pctx.repo, pctx.course, session, now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
_("Session expired."))
elif op == "end":
finish_flow_session_standalone(
pctx.repo, pctx.course, session,
now_datetime=now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
_("Session ended."))
elif op == "regrade":
regrade_session(
pctx.repo, pctx.course, session)
messages.add_message(pctx.request, messages.SUCCESS,
_("Session regraded."))
elif op == "recalculate":
recalculate_session_grade(
pctx.repo, pctx.course, session)
messages.add_message(pctx.request, messages.SUCCESS,
_("Session grade recalculated."))
else:
raise SuspiciousOperation(_("invalid session operation"))
except Exception as e:
messages.add_message(pctx.request, messages.ERROR,
string_concat(
pgettext_lazy("Starting of Error message",
"Error"),
": %(err_type)s %(err_str)s")
% {
"err_type": type(e).__name__,
"err_str": str(e)})
else:
allow_session_actions = False
# }}}
grade_changes = list(GradeChange.objects
.filter(
opportunity=opportunity,
participation=participation)
.order_by("grade_time")
.select_related("participation")
.select_related("participation__user")
.select_related("creator")
.select_related("opportunity"))
state_machine = GradeStateMachine()
state_machine.consume(grade_changes, set_is_superseded=True)
if opportunity.flow_id:
flow_sessions = list(FlowSession.objects
.filter(
participation=participation,
flow_id=opportunity.flow_id,
)
.order_by("start_time"))
from collections import namedtuple
SessionProperties = namedtuple( # noqa
"SessionProperties",
["due", "grade_description"])
from course.utils import get_session_grading_rule
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course,
opportunity.flow_id, pctx.course_commit_sha)
except ObjectDoesNotExist:
flow_sessions_and_session_properties = None
else:
flow_sessions_and_session_properties = []
for session in flow_sessions:
grading_rule = get_session_grading_rule(
session, pctx.role, flow_desc, now_datetime)
session_properties = SessionProperties(
due=grading_rule.due,
grade_description=grading_rule.description)
flow_sessions_and_session_properties.append(
(session, session_properties))
else:
flow_sessions_and_session_properties = None
avg_grade_percentage, avg_grade_population = average_grade(opportunity)
return render_course_page(pctx, "course/gradebook-single.html", {
"opportunity": opportunity,
"avg_grade_percentage": avg_grade_percentage,
"avg_grade_population": avg_grade_population,
"grade_participation": participation,
"grade_state_change_types": grade_state_change_types,
"grade_changes": grade_changes,
"state_machine": state_machine,
"flow_sessions_and_session_properties": flow_sessions_and_session_properties,
"allow_session_actions": allow_session_actions,
"show_privileged_info": pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant
],
})
def grant_exception_stage_3(pctx, participation_id, flow_id, session_id):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied("must be instructor or TA to grant exceptions")
participation = get_object_or_404(Participation, id=participation_id)
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
session = FlowSession.objects.get(id=int(session_id))
now_datetime = get_now_or_fake_time(pctx.request)
from course.utils import (
get_session_access_rule,
get_session_grading_rule)
access_rule = get_session_access_rule(
session, pctx.role, flow_desc, now_datetime)
grading_rule = get_session_grading_rule(
session, pctx.role, flow_desc, now_datetime)
request = pctx.request
if request.method == "POST":
form = ExceptionStage3Form({}, session.access_rules_tag, request.POST)
from course.constants import flow_rule_kind
if form.is_valid():
permissions = [
key
for key, _ in FLOW_PERMISSION_CHOICES
if form.cleaned_data[key]]
from course.validation import (
validate_session_access_rule,
validate_session_grading_rule,
ValidationContext)
from relate.utils import dict_to_struct
vctx = ValidationContext(
repo=pctx.repo,
commit_sha=pctx.course_commit_sha)
from course.content import get_flow_desc
flow_desc = get_flow_desc(pctx.repo,
pctx.course,
flow_id, pctx.course_commit_sha)
tags = None
if hasattr(flow_desc, "rules"):
tags = getattr(flow_desc.rules, "tags", None)
# {{{ put together access rule
new_access_rule = {"permissions": permissions}
if (form.cleaned_data["restrict_to_same_tag"]
and session.access_rules_tag is not None):
new_access_rule["if_has_tag"] = session.access_rules_tag
validate_session_access_rule(vctx, "newly created exception",
dict_to_struct(new_access_rule), tags)
fre_access = FlowRuleException(
flow_id=flow_id,
participation=participation,
expiration=form.cleaned_data["access_expires"],
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.access,
rule=new_access_rule)
fre_access.save()
# }}}
# {{{ put together grading rule
due = form.cleaned_data["due"]
if form.cleaned_data["due_same_as_access_expiration"]:
due = form.cleaned_data["access_expires"]
descr = "Granted excecption"
if form.cleaned_data["credit_percent"] is not None:
descr += " (%.1f%% credit)" % form.cleaned_data["credit_percent"]
from relate.utils import as_local_time
new_grading_rule = {
"credit_percent": form.cleaned_data["credit_percent"],
"due": as_local_time(due).replace(tzinfo=None),
"if_completed_before": as_local_time(due).replace(tzinfo=None),
"description": descr,
}
if (form.cleaned_data["restrict_to_same_tag"]
and session.access_rules_tag is not None):
new_grading_rule["if_has_tag"] = session.access_rules_tag
if hasattr(grading_rule, "grade_identifier"):
new_grading_rule["grade_identifier"] = \
grading_rule.grade_identifier
if hasattr(grading_rule, "grade_aggregation_strategy"):
new_grading_rule["grade_aggregation_strategy"] = \
grading_rule.grade_aggregation_strategy
validate_session_grading_rule(vctx, "newly created exception",
dict_to_struct(new_grading_rule), tags)
fre_grading = FlowRuleException(
flow_id=flow_id,
participation=participation,
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.grading,
rule=new_grading_rule)
fre_grading.save()
# }}}
messages.add_message(pctx.request, messages.SUCCESS,
"Exception granted to '%s' for '%s'." % (participation, flow_id))
return redirect(
"course.views.grant_exception",
pctx.course.identifier)
else:
data = {
"restrict_to_same_tag": session.access_rules_tag is not None,
"credit_percent": grading_rule.credit_percent,
#"due_same_as_access_expiration": True,
"due": grading_rule.due,
}
for perm in access_rule.permissions:
data[perm] = True
form = ExceptionStage3Form(data, session.access_rules_tag)
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_description": "Grant Exception",
"form_text": "<div class='well'>Granting exception to '%s' for '%s'.</div>"
% (participation, flow_id),
})
def make_page_answer_stats_list(pctx, flow_id, restrict_to_first_attempt):
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
page_info_list = []
for group_desc in flow_desc.groups:
for page_desc in group_desc.pages:
points = 0
graded_count = 0
empty_count = 0
answer_count = 0
total_count = 0
visits = (FlowPageVisit.objects
.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_desc.id,
page_data__page_id=page_desc.id,
is_submitted_answer=True,
))
if connection.features.can_distinct_on_fields:
if restrict_to_first_attempt:
visits = (visits
.distinct("flow_session__participation__id")
.order_by("flow_session__participation__id",
"visit_time"))
elif is_page_multiple_submit(flow_desc, page_desc):
visits = (visits
.distinct("page_data__id")
.order_by("page_data__id", "-visit_time"))
visits = (visits
.select_related("flow_session")
.select_related("page_data"))
answer_expected = False
title = None
for visit in visits:
page = page_cache.get_page(group_desc.id, page_desc.id,
pctx.course_commit_sha)
answer_expected = answer_expected or page.expects_answer()
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
title = page.title(grading_page_context, visit.page_data.data)
answer_feedback = visit.get_most_recent_feedback()
if visit.answer is not None:
answer_count += 1
else:
empty_count += 1
total_count += 1
if (answer_feedback is not None
and answer_feedback.correctness is not None):
if visit.answer is None:
assert answer_feedback.correctness == 0
else:
points += answer_feedback.correctness
graded_count += 1
if not answer_expected:
continue
page_info_list.append(
PageAnswerStats(
group_id=group_desc.id,
page_id=page_desc.id,
title=title,
average_correctness=safe_div(points, graded_count),
average_emptiness=safe_div(
empty_count, graded_count),
answer_count=answer_count,
total_count=total_count,
url=reverse(
"relate-page_analytics",
args=(
pctx.course_identifier,
flow_id,
group_desc.id,
page_desc.id,
))))
return page_info_list
def grant_exception_stage_3(pctx, participation_id, flow_id, base_ruleset):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied("must be instructor or TA to grant exceptions")
participation = get_object_or_404(Participation, id=participation_id)
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
if not hasattr(flow_desc, "access_rules"):
messages.add_message(pctx.request, messages.ERROR,
"Flow '%s' does not declare access rules."
% flow_id)
return redirect("course.views.grant_exception",
pctx.course.identifier)
ruleset = None
for def_ruleset in flow_desc.access_rules:
if def_ruleset.id == base_ruleset:
ruleset = def_ruleset
if ruleset is None:
raise http.Http404()
STIPULATION_KEYS = ["allowed_session_count", "credit_percent"]
request = pctx.request
if request.method == "POST":
form = ExceptionStage3Form(request.POST)
if form.is_valid():
fae = FlowAccessException()
fae.participation = participation
fae.flow_id = flow_id
fae.expiration = form.cleaned_data["expiration"]
fae.stipulations = {}
for stip_key in STIPULATION_KEYS:
if form.cleaned_data[stip_key] is not None:
fae.stipulations[stip_key] = form.cleaned_data[stip_key]
fae.creator = pctx.request.user
fae.is_sticky = form.cleaned_data["sticky"]
fae.comment = form.cleaned_data["comment"]
fae.save()
for key, _ in FLOW_PERMISSION_CHOICES:
if form.cleaned_data[key]:
faee = FlowAccessExceptionEntry()
faee.exception = fae
faee.permission = key
faee.save()
if form.cleaned_data["update_session"]:
sessions = FlowSession.objects.filter(
participation=participation,
flow_id=flow_id,
in_progress=True)
assert sessions.count() <= 1
for session in sessions:
session.access_rules_id = "exception"
session.save()
messages.add_message(pctx.request, messages.SUCCESS,
"Exception granted.")
return redirect(
"course.views.grant_exception",
pctx.course.identifier)
else:
data = {
"update_session": True,
"sticky": getattr(ruleset, "sticky", False),
}
for perm in ruleset.permissions:
data[perm] = True
for stip_key in STIPULATION_KEYS:
if hasattr(ruleset, stip_key):
data[stip_key] = getattr(ruleset, stip_key)
form = ExceptionStage3Form(data)
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_description": "Grant Exception",
"form_text": "<div class='well'>Granting exception to '%s' for '%s'.</div>"
% (participation, flow_id),
})
def grade_page_visit(visit, visit_grade_model=FlowPageVisitGrade,
grade_data=None, graded_at_git_commit_sha=None):
if not visit.is_graded_answer:
raise RuntimeError("cannot grade ungraded answer")
flow_session = visit.flow_session
course = flow_session.course
page_data = visit.page_data
from course.content import (
get_course_repo,
get_course_commit_sha,
get_flow_commit_sha,
get_flow_desc,
get_flow_page_desc,
instantiate_flow_page)
repo = get_course_repo(course)
course_commit_sha = get_course_commit_sha(
course, flow_session.participation)
flow_desc_pre = get_flow_desc(repo, course,
flow_session.flow_id, course_commit_sha)
flow_commit_sha = get_flow_commit_sha(
course, flow_session.participation, flow_desc_pre,
visit.flow_session)
flow_desc = get_flow_desc(repo, course,
flow_session.flow_id, flow_commit_sha)
page_desc = get_flow_page_desc(
flow_session.flow_id,
flow_desc,
page_data.group_id, page_data.page_id)
page = instantiate_flow_page(
location="flow '%s', group, '%s', page '%s'"
% (flow_session.flow_id, page_data.group_id, page_data.page_id),
repo=repo, page_desc=page_desc,
commit_sha=flow_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=course,
repo=repo,
commit_sha=flow_commit_sha)
answer_feedback = page.grade(
grading_page_context, visit.page_data.data,
visit.answer, grade_data=grade_data)
grade = visit_grade_model()
grade.visit = visit
grade.grade_data = grade_data
grade.max_points = page.max_points(visit.page_data)
grade.graded_at_git_commit_sha = graded_at_git_commit_sha
if answer_feedback is not None:
grade.correctness = answer_feedback.correctness
grade.feedback = answer_feedback.as_json()
grade.save()
def page_analytics(pctx, flow_identifier, group_id, page_id):
if pctx.role not in [
participation_role.teaching_assistant,
participation_role.instructor]:
raise PermissionDenied("must be at least TA to view analytics")
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_identifier,
pctx.course_commit_sha)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_identifier)
visits = (FlowPageVisit.objects
.filter(
flow_session__flow_id=flow_identifier,
page_data__group_id=group_id,
page_data__page_id=page_id,
is_graded_answer=True,
)
.prefetch_related("flow_session")
.prefetch_related("page_data"))
normalized_answer_and_correctness_to_count = {}
title = None
body = None
total_count = 0
for visit in visits:
flow_commit_sha = get_flow_commit_sha(
pctx.course, pctx.participation, flow_desc,
visit.flow_session)
page = page_cache.get_page(group_id, page_id, flow_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=flow_commit_sha)
title = page.title(grading_page_context, visit.page_data.data)
body = page.body(grading_page_context, visit.page_data.data)
answer_feedback = visit.get_most_recent_feedback()
if answer_feedback is not None:
key = (answer_feedback.normalized_answer,
answer_feedback.correctness)
normalized_answer_and_correctness_to_count[key] = \
normalized_answer_and_correctness_to_count.get(key, 0) + 1
total_count += 1
answer_stats = []
for (normalized_answer, correctness), count in \
normalized_answer_and_correctness_to_count.iteritems():
answer_stats.append(
AnswerStats(
normalized_answer=normalized_answer,
correctness=correctness,
count=count,
percentage=safe_div(100 * count, total_count)))
answer_stats = sorted(
answer_stats,
key=lambda astats: astats.percentage,
reverse=True)
return render_course_page(pctx, "course/analytics-page.html", {
"flow_identifier": flow_identifier,
"group_id": group_id,
"page_id": page_id,
"title": title,
"body": body,
"answer_stats_list": answer_stats,
})
def download_all_submissions(pctx, flow_id):
if pctx.role not in [
participation_role.teaching_assistant,
participation_role.instructor,
participation_role.observer,
]:
raise PermissionDenied(_("must be at least TA to download submissions"))
from course.content import get_flow_desc
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
# {{{ find access rules tag
if hasattr(flow_desc, "rules"):
access_rules_tags = getattr(flow_desc.rules, "tags", [])
else:
access_rules_tags = []
ALL_SESSION_TAG = string_concat("<<<", _("ALL"), ">>>") # noqa
session_tag_choices = [
(tag, tag)
for tag in access_rules_tags] + [(ALL_SESSION_TAG,
string_concat("(", _("ALL"), ")"))]
# }}}
page_ids = [
"%s/%s" % (group_desc.id, page_desc.id)
for group_desc in flow_desc.groups
for page_desc in group_desc.pages]
request = pctx.request
if request.method == "POST":
form = DownloadAllSubmissionsForm(page_ids, session_tag_choices,
request.POST)
if form.is_valid():
which_attempt = form.cleaned_data["which_attempt"]
slash_index = form.cleaned_data["page_id"].index("/")
group_id = form.cleaned_data["page_id"][:slash_index]
page_id = form.cleaned_data["page_id"][slash_index+1:]
from course.utils import PageInstanceCache
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
visits = (FlowPageVisit.objects
.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_id,
page_data__page_id=page_id,
is_submitted_answer=True,
)
.select_related("flow_session")
.select_related("flow_session__participation__user")
.select_related("page_data")
# We overwrite earlier submissions with later ones
# in a dictionary below.
.order_by("visit_time"))
if form.cleaned_data["non_in_progress_only"]:
visits = visits.filter(flow_session__in_progress=False)
if form.cleaned_data["restrict_to_rules_tag"] != ALL_SESSION_TAG:
visits = visits.filter(
flow_session__access_rules_tag=(
form.cleaned_data["restrict_to_rules_tag"]))
submissions = {}
for visit in visits:
page = page_cache.get_page(group_id, page_id,
pctx.course_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
bytes_answer = page.normalized_bytes_answer(
grading_page_context, visit.page_data.data,
visit.answer)
if which_attempt in ["first", "last"]:
key = (visit.flow_session.participation.user.username,)
elif which_attempt == "all":
key = (visit.flow_session.participation.user.username,
str(visit.flow_session.id))
else:
raise NotImplementedError()
if bytes_answer is not None:
if (which_attempt == "first"
and key in submissions):
# Already there, disregard further ones
continue
submissions[key] = bytes_answer
from six import BytesIO
from zipfile import ZipFile
bio = BytesIO()
with ZipFile(bio, "w") as subm_zip:
for key, (extension, bytes_answer) in \
six.iteritems(submissions):
subm_zip.writestr(
"-".join(key) + extension,
bytes_answer)
extra_file = request.FILES.get("extra_file")
if extra_file is not None:
subm_zip.writestr(extra_file.name, extra_file.read())
response = http.HttpResponse(
bio.getvalue(),
content_type="application/zip")
response['Content-Disposition'] = (
'attachment; filename="submissions_%s_%s_%s_%s_%s.zip"'
% (pctx.course.identifier, flow_id, group_id, page_id,
now().date().strftime("%Y-%m-%d")))
return response
else:
form = DownloadAllSubmissionsForm(page_ids, session_tag_choices)
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_description": _("Download All Submissions in Zip file")
})
def grant_exception_stage_3(pctx, participation_id, flow_id, session_id):
# type: (CoursePageContext, int, Text, int) -> http.HttpResponse
if not pctx.has_permission(pperm.grant_exception):
raise PermissionDenied(_("may not grant exceptions"))
participation = get_object_or_404(Participation, id=participation_id)
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
session = FlowSession.objects.get(id=int(session_id))
now_datetime = get_now_or_fake_time(pctx.request)
from course.utils import (get_session_access_rule,
get_session_grading_rule)
access_rule = get_session_access_rule(session, flow_desc, now_datetime)
grading_rule = get_session_grading_rule(session, flow_desc, now_datetime)
request = pctx.request
if request.method == "POST":
form = ExceptionStage3Form({}, flow_desc, session.access_rules_tag,
request.POST)
from course.constants import flow_rule_kind
if form.is_valid():
permissions = [
key for key, _ in FLOW_PERMISSION_CHOICES
if form.cleaned_data[key]
]
from course.validation import (validate_session_access_rule,
validate_session_grading_rule,
ValidationContext)
from relate.utils import dict_to_struct
vctx = ValidationContext(repo=pctx.repo,
commit_sha=pctx.course_commit_sha)
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
tags = [] # type: List[Text]
if hasattr(flow_desc, "rules"):
try:
from typing import Text # noqa
except ImportError:
Text = None # noqa
tags = cast(List[Text], getattr(flow_desc.rules, "tags",
[])) # type: ignore # noqa
# {{{ put together access rule
if form.cleaned_data["create_access_exception"]:
new_access_rule = {"permissions": permissions}
if (form.cleaned_data.get("restrict_to_same_tag")
and session.access_rules_tag is not None):
new_access_rule["if_has_tag"] = session.access_rules_tag
validate_session_access_rule(
vctx, ugettext("newly created exception"),
dict_to_struct(new_access_rule), tags)
fre_access = FlowRuleException(
flow_id=flow_id,
participation=participation,
expiration=form.cleaned_data["access_expires"],
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.access,
rule=new_access_rule)
fre_access.save()
# }}}
new_access_rules_tag = form.cleaned_data.get(
"set_access_rules_tag")
if new_access_rules_tag == NONE_SESSION_TAG:
new_access_rules_tag = None
if session.access_rules_tag != new_access_rules_tag:
session.access_rules_tag = new_access_rules_tag
session.save()
# {{{ put together grading rule
if form.cleaned_data["create_grading_exception"]:
due = form.cleaned_data["due"]
if form.cleaned_data["due_same_as_access_expiration"]:
due = form.cleaned_data["access_expires"]
descr = ugettext("Granted excecption")
if form.cleaned_data["credit_percent"] is not None:
descr += string_concat(" (%.1f%% ", ugettext('credit'), ")") \
% form.cleaned_data["credit_percent"]
due_local_naive = due
if due_local_naive is not None:
from relate.utils import as_local_time
due_local_naive = (as_local_time(due_local_naive).replace(
tzinfo=None))
new_grading_rule = {
"description": descr,
}
if due_local_naive is not None:
new_grading_rule["due"] = due_local_naive
new_grading_rule["if_completed_before"] = due_local_naive
for attr_name in [
"credit_percent", "bonus_points", "max_points",
"max_points_enforced_cap", "generates_grade"
]:
if form.cleaned_data[attr_name] is not None:
new_grading_rule[attr_name] = form.cleaned_data[
attr_name]
if (form.cleaned_data.get("restrict_to_same_tag")
and session.access_rules_tag is not None):
new_grading_rule["if_has_tag"] = session.access_rules_tag
validate_session_grading_rule(
vctx, ugettext("newly created exception"),
dict_to_struct(new_grading_rule), tags,
grading_rule.grade_identifier)
fre_grading = FlowRuleException(
flow_id=flow_id,
participation=participation,
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.grading,
rule=new_grading_rule)
fre_grading.save()
# }}}
messages.add_message(
pctx.request, messages.SUCCESS,
ugettext("Exception granted to '%(participation)s' "
"for '%(flow_id)s'.") % {
'participation': participation,
'flow_id': flow_id
})
return redirect("relate-grant_exception", pctx.course.identifier)
else:
data = {
"restrict_to_same_tag": session.access_rules_tag is not None,
#"due_same_as_access_expiration": True,
"due": grading_rule.due,
"generates_grade": grading_rule.generates_grade,
"credit_percent": grading_rule.credit_percent,
"bonus_points": grading_rule.bonus_points,
"max_points": grading_rule.max_points,
"max_points_enforced_cap": grading_rule.max_points_enforced_cap,
}
for perm in access_rule.permissions:
data[perm] = True
form = ExceptionStage3Form(data, flow_desc, session.access_rules_tag)
return render_course_page(
pctx, "course/generic-course-form.html", {
"form": form,
"form_description": ugettext("Grant Exception"),
"form_text": string_concat(
"<div class='well'>",
ugettext("Granting exception to '%(participation)s' "
"for '%(flow_id)s' (session %(session)s)."), "</div>")
% {
'participation': participation,
'flow_id': flow_id,
'session': strify_session_for_exception(session)
},
})
def grant_exception_stage_2(pctx, participation_id, flow_id):
# type: (CoursePageContext, Text, Text) -> http.HttpResponse
if not pctx.has_permission(pperm.grant_exception):
raise PermissionDenied(_("may not grant exceptions"))
# {{{ get flow data
participation = get_object_or_404(Participation, id=participation_id)
form_text = (string_concat(
"<div class='well'>",
ugettext("Granting exception to '%(participation)s' for "
"'%(flow_id)s'."), "</div>") % {
'participation': participation,
'flow_id': flow_id
})
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
now_datetime = get_now_or_fake_time(pctx.request)
if hasattr(flow_desc, "rules"):
access_rules_tags = getattr(flow_desc.rules, "tags", [])
else:
access_rules_tags = []
NONE_SESSION_TAG = string_concat("<<<", _("NONE"), ">>>") # noqa
session_tag_choices = [(tag, tag) for tag in access_rules_tags] + [
(NONE_SESSION_TAG, string_concat("(", _("NONE"), ")"))
]
from course.utils import get_session_start_rule
session_start_rule = get_session_start_rule(pctx.course, participation,
flow_id, flow_desc,
now_datetime)
create_session_is_override = False
if not session_start_rule.may_start_new_session:
create_session_is_override = True
form_text += (
"<div class='alert alert-info'>%s</div>" % (string_concat(
"<i class='fa fa-info-circle'></i> ",
_("Creating a new session is (technically) not allowed "
"by course rules. Clicking 'Create Session' anyway will "
"override this rule."))))
default_tag = session_start_rule.tag_session
if default_tag is None:
default_tag = NONE_SESSION_TAG
# }}}
def find_sessions():
# type: () -> List[FlowSession]
return list(
FlowSession.objects.filter(participation=participation,
flow_id=flow_id).order_by("start_time"))
exception_form = None
request = pctx.request
if request.method == "POST":
exception_form = ExceptionStage2Form(find_sessions(), request.POST)
create_session_form = CreateSessionForm(session_tag_choices,
default_tag,
create_session_is_override,
request.POST)
if "create_session" in request.POST or "next" in request.POST:
pass
else:
raise SuspiciousOperation(_("invalid command"))
if create_session_form.is_valid() and "create_session" in request.POST:
from course.flow import start_flow
access_rules_tag = (
create_session_form.
cleaned_data["access_rules_tag_for_new_session"])
if access_rules_tag == NONE_SESSION_TAG:
access_rules_tag = None
start_flow(pctx.repo,
pctx.course,
participation,
user=participation.user,
flow_id=flow_id,
flow_desc=flow_desc,
session_start_rule=session_start_rule,
now_datetime=now_datetime)
exception_form = None
elif exception_form.is_valid(
) and "next" in request.POST: # type: ignore
return redirect(
"relate-grant_exception_stage_3", pctx.course.identifier,
participation.id, flow_id,
exception_form.cleaned_data["session"]) # type: ignore
else:
create_session_form = CreateSessionForm(session_tag_choices,
default_tag,
create_session_is_override)
if exception_form is None:
exception_form = ExceptionStage2Form(find_sessions())
return render_course_page(
pctx, "course/generic-course-form.html", {
"forms": [exception_form, create_session_form],
"form_text": form_text,
"form_description": _("Grant Exception"),
})
def download_all_submissions(pctx, flow_id):
if pctx.role not in [
participation_role.teaching_assistant,
participation_role.instructor,
participation_role.observer,
]:
raise PermissionDenied(
_("must be at least TA to download submissions"))
from course.content import get_flow_desc
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
# {{{ find access rules tag
if hasattr(flow_desc, "rules"):
access_rules_tags = getattr(flow_desc.rules, "tags", [])
else:
access_rules_tags = []
ALL_SESSION_TAG = string_concat("<<<", _("ALL"), ">>>") # noqa
session_tag_choices = [(tag, tag) for tag in access_rules_tags] + [
(ALL_SESSION_TAG, string_concat("(", _("ALL"), ")"))
]
# }}}
page_ids = [
"%s/%s" % (group_desc.id, page_desc.id)
for group_desc in flow_desc.groups for page_desc in group_desc.pages
]
request = pctx.request
if request.method == "POST":
form = DownloadAllSubmissionsForm(page_ids, session_tag_choices,
request.POST)
if form.is_valid():
which_attempt = form.cleaned_data["which_attempt"]
slash_index = form.cleaned_data["page_id"].index("/")
group_id = form.cleaned_data["page_id"][:slash_index]
page_id = form.cleaned_data["page_id"][slash_index + 1:]
from course.utils import PageInstanceCache
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
visits = (
FlowPageVisit.objects.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_id,
page_data__page_id=page_id,
is_submitted_answer=True,
).select_related("flow_session").select_related(
"flow_session__participation__user").select_related(
"page_data")
# We overwrite earlier submissions with later ones
# in a dictionary below.
.order_by("visit_time"))
if form.cleaned_data["non_in_progress_only"]:
visits = visits.filter(flow_session__in_progress=False)
if form.cleaned_data["restrict_to_rules_tag"] != ALL_SESSION_TAG:
visits = visits.filter(flow_session__access_rules_tag=(
form.cleaned_data["restrict_to_rules_tag"]))
submissions = {}
for visit in visits:
page = page_cache.get_page(group_id, page_id,
pctx.course_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
bytes_answer = page.normalized_bytes_answer(
grading_page_context, visit.page_data.data, visit.answer)
if which_attempt in ["first", "last"]:
key = (visit.flow_session.participation.user.username, )
elif which_attempt == "all":
key = (visit.flow_session.participation.user.username,
str(visit.flow_session.id))
else:
raise NotImplementedError()
if bytes_answer is not None:
if (which_attempt == "first" and key in submissions):
# Already there, disregard further ones
continue
submissions[key] = bytes_answer
from six import BytesIO
from zipfile import ZipFile
bio = BytesIO()
with ZipFile(bio, "w") as subm_zip:
for key, (extension, bytes_answer) in \
six.iteritems(submissions):
subm_zip.writestr("-".join(key) + extension, bytes_answer)
extra_file = request.FILES.get("extra_file")
if extra_file is not None:
subm_zip.writestr(extra_file.name, extra_file.read())
response = http.HttpResponse(bio.getvalue(),
content_type="application/zip")
response['Content-Disposition'] = (
'attachment; filename="submissions_%s_%s_%s_%s_%s.zip"' %
(pctx.course.identifier, flow_id, group_id, page_id,
now().date().strftime("%Y-%m-%d")))
return response
else:
form = DownloadAllSubmissionsForm(page_ids, session_tag_choices)
return render_course_page(
pctx, "course/generic-course-form.html", {
"form": form,
"form_description": _("Download All Submissions in Zip file")
})
def grant_exception_stage_2(pctx, participation_id, flow_id):
if pctx.role not in [
participation_role.instructor,
participation_role.teaching_assistant]:
raise PermissionDenied("must be instructor or TA to grant exceptions")
# {{{ get flow data
participation = get_object_or_404(Participation, id=participation_id)
form_text = ("<div class='well'>Granting exception to '%s' for '%s'.</div>"
% (participation, flow_id))
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
now_datetime = get_now_or_fake_time(pctx.request)
if hasattr(flow_desc, "rules"):
access_rules_tags = getattr(flow_desc.rules, "tags", [])
else:
access_rules_tags = []
NONE_SESSION_TAG = "<<<NONE>>>"
session_tag_choices = [
(tag, tag)
for tag in access_rules_tags] + [(NONE_SESSION_TAG, "(None)")]
from course.utils import get_session_start_rule
session_start_rule = get_session_start_rule(pctx.course, participation,
participation.role, flow_id, flow_desc, now_datetime)
create_session_is_override = False
if not session_start_rule.may_start_new_session:
create_session_is_override = True
form_text += ("<div class='alert alert-info'>%s</div>"
% "Creating a new session is (technically) not allowed by course "
"rules. Clicking 'Create Session' anyway will override this rule.")
default_tag = session_start_rule.tag_session
if default_tag is None:
default_tag = NONE_SESSION_TAG
# }}}
def find_sessions():
return (FlowSession.objects
.filter(
participation=participation,
flow_id=flow_id)
.order_by("start_time"))
form = None
request = pctx.request
if request.method == "POST":
form = ExceptionStage2Form(
session_tag_choices, default_tag, create_session_is_override,
find_sessions(), request.POST)
if "create_session" in request.POST or "next" in request.POST:
pass
else:
raise SuspiciousOperation("invalid command")
if form.is_valid() and "create_session" in request.POST:
from course.flow import start_flow
access_rules_tag = form.cleaned_data["access_rules_tag_for_new_session"]
if access_rules_tag == NONE_SESSION_TAG:
access_rules_tag = None
start_flow(pctx.repo, pctx.course, participation, flow_id,
flow_desc=flow_desc,
access_rules_tag=access_rules_tag,
now_datetime=now_datetime)
form = None
elif form.is_valid() and "next" in request.POST:
return redirect(
"course.views.grant_exception_stage_3",
pctx.course.identifier,
participation.id,
flow_id,
form.cleaned_data["session"])
if form is None:
form = ExceptionStage2Form(session_tag_choices, default_tag,
create_session_is_override, find_sessions())
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_text": form_text,
"form_description": "Grant Exception",
})
def convert_flow_page_visit(stderr, fpv):
course = fpv.flow_session.course
from course.content import (get_course_repo, get_flow_desc,
get_flow_page_desc, instantiate_flow_page)
repo = get_course_repo(course)
flow_id = fpv.flow_session.flow_id
commit_sha = course.active_git_commit_sha.encode()
try:
flow_desc = get_flow_desc(repo,
course,
flow_id,
commit_sha,
tolerate_tabs=True)
except ObjectDoesNotExist:
stderr.write("warning: no flow yaml file found for '%s' in '%s'" %
(flow_id, course.identifier))
return
try:
page_desc = get_flow_page_desc(fpv.flow_session.flow_id, flow_desc,
fpv.page_data.group_id,
fpv.page_data.page_id)
except ObjectDoesNotExist:
stderr.write(
f"warning: flow page visit {fpv.id}: no page yaml desc "
"found for "
f"'{flow_id}:{fpv.page_data.group_id}/{fpv.page_data.page_id}' "
f"in '{course.identifier}'")
return
page = instantiate_flow_page(
location="flow '%s', group, '%s', page '%s'" %
(flow_id, fpv.page_data.group_id, fpv.page_data.page_id),
repo=repo,
page_desc=page_desc,
commit_sha=commit_sha)
from course.page.base import PageContext
pctx = PageContext(course=course,
repo=repo,
commit_sha=commit_sha,
flow_session=fpv.flow_session,
page_uri=None)
from course.page.upload import FileUploadQuestion
from course.page.code import CodeQuestion
if isinstance(page, FileUploadQuestion):
content, mime_type = page.get_content_from_answer_data(fpv.answer)
from django.core.files.base import ContentFile
answer_data = page.file_to_answer_data(pctx, ContentFile(content),
mime_type)
fpv.answer = answer_data
fpv.save()
return True
elif isinstance(page, CodeQuestion):
code = page.get_code_from_answer_data(fpv.answer)
answer_data = page.code_to_answer_data(pctx, code)
fpv.answer = answer_data
fpv.save()
return True
else:
return False
assert False
def make_page_answer_stats_list(pctx, flow_id, restrict_to_first_attempt):
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
is_multiple_submit = is_flow_multiple_submit(flow_desc)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
page_info_list = []
for group_desc in flow_desc.groups:
for page_desc in group_desc.pages:
points = 0
graded_count = 0
answer_count = 0
total_count = 0
visits = (FlowPageVisit.objects
.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_desc.id,
page_data__page_id=page_desc.id,
is_submitted_answer=True,
))
if connection.features.can_distinct_on_fields:
if restrict_to_first_attempt:
visits = (visits
.distinct("flow_session__participation__id")
.order_by("flow_session__participation__id",
"visit_time"))
elif is_multiple_submit:
visits = (visits
.distinct("page_data__id")
.order_by("page_data__id", "-visit_time"))
visits = (visits
.select_related("flow_session")
.select_related("page_data"))
answer_expected = False
title = None
for visit in visits:
page = page_cache.get_page(group_desc.id, page_desc.id,
pctx.course_commit_sha)
answer_expected = answer_expected or page.expects_answer()
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
title = page.title(grading_page_context, visit.page_data.data)
answer_feedback = visit.get_most_recent_feedback()
if visit.answer is not None:
answer_count += 1
total_count += 1
if (answer_feedback is not None
and answer_feedback.correctness is not None):
if visit.answer is None:
assert answer_feedback.correctness == 0
else:
points += answer_feedback.correctness
graded_count += 1
if not answer_expected:
continue
page_info_list.append(
PageAnswerStats(
group_id=group_desc.id,
page_id=page_desc.id,
title=title,
average_correctness=safe_div(points, graded_count),
average_emptiness=safe_div(
graded_count - answer_count, graded_count),
answer_count=answer_count,
total_count=total_count,
url=reverse(
"relate-page_analytics",
args=(
pctx.course_identifier,
flow_id,
group_desc.id,
page_desc.id,
))))
return page_info_list
def view_single_grade(pctx, participation_id, opportunity_id):
from course.views import get_now_or_fake_time
now_datetime = get_now_or_fake_time(pctx.request)
participation = get_object_or_404(Participation,
id=int(participation_id))
if participation.course != pctx.course:
raise SuspiciousOperation("participation does not match course")
opportunity = get_object_or_404(GradingOpportunity, id=int(opportunity_id))
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
if not opportunity.shown_in_grade_book:
messages.add_message(pctx.request, messages.INFO,
"This grade is not shown in the grade book.")
if not opportunity.shown_in_student_grade_book:
messages.add_message(pctx.request, messages.INFO,
"This grade is not shown in the student grade book.")
elif pctx.role == participation_role.student:
if participation != pctx.participation:
raise PermissionDenied("may not view other people's grades")
if not (opportunity.shown_in_grade_book
and opportunity.shown_in_student_grade_book):
raise PermissionDenied("grade has not been released")
else:
raise PermissionDenied()
# {{{ modify sessions buttons
if pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant]:
allow_session_actions = True
request = pctx.request
if pctx.request.method == "POST":
action_re = re.compile("^([a-z]+)_([0-9]+)$")
for key in request.POST.keys():
action_match = action_re.match(key)
if action_match:
break
if not action_match:
raise SuspiciousOperation("unknown action")
session = FlowSession.objects.get(id=int(action_match.group(2)))
op = action_match.group(1)
from course.flow import (
reopen_session,
regrade_session,
recalculate_session_grade,
expire_flow_session_standalone,
finish_flow_session_standalone)
try:
if op == "expire":
expire_flow_session_standalone(
pctx.repo, pctx.course, session, now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
"Session expired.")
elif op == "end":
finish_flow_session_standalone(
pctx.repo, pctx.course, session,
now_datetime=now_datetime)
messages.add_message(pctx.request, messages.SUCCESS,
"Session ended.")
elif op == "reopen":
reopen_session(session)
messages.add_message(pctx.request, messages.SUCCESS,
"Session reopened.")
elif op == "regrade":
regrade_session(
pctx.repo, pctx.course, session)
messages.add_message(pctx.request, messages.SUCCESS,
"Session regraded.")
elif op == "recalculate":
recalculate_session_grade(
pctx.repo, pctx.course, session)
messages.add_message(pctx.request, messages.SUCCESS,
"Session grade recalculated.")
else:
raise SuspiciousOperation("invalid session operation")
except Exception as e:
messages.add_message(pctx.request, messages.ERROR,
"Error: %s %s" % (type(e).__name__, str(e)))
else:
allow_session_actions = False
# }}}
grade_changes = list(GradeChange.objects
.filter(
opportunity=opportunity,
participation=participation)
.order_by("grade_time")
.select_related("participation")
.select_related("participation__user")
.select_related("creator")
.select_related("opportunity"))
state_machine = GradeStateMachine()
state_machine.consume(grade_changes, set_is_superseded=True)
flow_grade_aggregation_strategy_text = None
if opportunity.flow_id:
flow_sessions = list(FlowSession.objects
.filter(
participation=participation,
flow_id=opportunity.flow_id,
)
.order_by("start_time"))
from collections import namedtuple
SessionProperties = namedtuple("SessionProperties",
["due", "grade_description"])
from course.utils import get_session_grading_rule
from course.content import get_flow_desc
flow_desc = get_flow_desc(pctx.repo, pctx.course,
opportunity.flow_id, pctx.course_commit_sha)
flow_sessions_and_session_properties = []
for session in flow_sessions:
grading_rule = get_session_grading_rule(
session, pctx.role, flow_desc, now_datetime)
session_properties = SessionProperties(
due=grading_rule.due,
grade_description=grading_rule.description)
flow_sessions_and_session_properties.append(
(session, session_properties))
else:
flow_sessions_and_session_properties = None
return render_course_page(pctx, "course/gradebook-single.html", {
"opportunity": opportunity,
"grade_participation": participation,
"grade_state_change_types": grade_state_change_types,
"grade_changes": grade_changes,
"state_machine": state_machine,
"flow_sessions_and_session_properties": flow_sessions_and_session_properties,
"allow_session_actions": allow_session_actions,
"show_privileged_info": pctx.role in [
participation_role.instructor,
participation_role.teaching_assistant
],
"flow_grade_aggregation_strategy": flow_grade_aggregation_strategy_text,
})
def grant_exception_stage_3(pctx, participation_id, flow_id, session_id):
# type: (CoursePageContext, int, Text, int) -> http.HttpResponse
if not pctx.has_permission(pperm.grant_exception):
raise PermissionDenied(_("may not grant exceptions"))
participation = get_object_or_404(Participation, id=participation_id)
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
session = FlowSession.objects.get(id=int(session_id))
now_datetime = get_now_or_fake_time(pctx.request)
from course.utils import (
get_session_access_rule,
get_session_grading_rule)
access_rule = get_session_access_rule(session, flow_desc, now_datetime)
grading_rule = get_session_grading_rule(session, flow_desc, now_datetime)
request = pctx.request
if request.method == "POST":
form = ExceptionStage3Form(
{}, flow_desc, session.access_rules_tag, request.POST)
from course.constants import flow_rule_kind
if form.is_valid():
permissions = [
key
for key, _ in FLOW_PERMISSION_CHOICES
if form.cleaned_data[key]]
from course.validation import (
validate_session_access_rule,
validate_session_grading_rule,
ValidationContext)
from relate.utils import dict_to_struct
vctx = ValidationContext(
repo=pctx.repo,
commit_sha=pctx.course_commit_sha)
flow_desc = get_flow_desc(pctx.repo,
pctx.course,
flow_id, pctx.course_commit_sha)
tags = None
if hasattr(flow_desc, "rules"):
tags = getattr(flow_desc.rules, "tags", None)
# {{{ put together access rule
if form.cleaned_data["create_access_exception"]:
new_access_rule = {"permissions": permissions}
if (form.cleaned_data.get("restrict_to_same_tag")
and session.access_rules_tag is not None):
new_access_rule["if_has_tag"] = session.access_rules_tag
validate_session_access_rule(
vctx, ugettext("newly created exception"),
dict_to_struct(new_access_rule), tags)
fre_access = FlowRuleException(
flow_id=flow_id,
participation=participation,
expiration=form.cleaned_data["access_expires"],
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.access,
rule=new_access_rule)
fre_access.save()
# }}}
new_access_rules_tag = form.cleaned_data.get("set_access_rules_tag")
if new_access_rules_tag == NONE_SESSION_TAG:
new_access_rules_tag = None
if session.access_rules_tag != new_access_rules_tag:
session.access_rules_tag = new_access_rules_tag
session.save()
# {{{ put together grading rule
if form.cleaned_data["create_grading_exception"]:
due = form.cleaned_data["due"]
if form.cleaned_data["due_same_as_access_expiration"]:
due = form.cleaned_data["access_expires"]
descr = ugettext("Granted excecption")
if form.cleaned_data["credit_percent"] is not None:
descr += string_concat(" (%.1f%% ", ugettext('credit'), ")") \
% form.cleaned_data["credit_percent"]
due_local_naive = due
if due_local_naive is not None:
from relate.utils import as_local_time
due_local_naive = (
as_local_time(due_local_naive)
.replace(tzinfo=None))
new_grading_rule = {
"description": descr,
}
if due_local_naive is not None:
new_grading_rule["due"] = due_local_naive
new_grading_rule["if_completed_before"] = due_local_naive
for attr_name in ["credit_percent", "bonus_points",
"max_points", "max_points_enforced_cap"]:
if form.cleaned_data[attr_name] is not None:
new_grading_rule[attr_name] = form.cleaned_data[attr_name]
if (form.cleaned_data.get("restrict_to_same_tag")
and session.access_rules_tag is not None):
new_grading_rule["if_has_tag"] = session.access_rules_tag
if hasattr(grading_rule, "generates_grade"):
new_grading_rule["generates_grade"] = \
grading_rule.generates_grade
validate_session_grading_rule(
vctx, ugettext("newly created exception"),
dict_to_struct(new_grading_rule), tags,
grading_rule.grade_identifier)
fre_grading = FlowRuleException(
flow_id=flow_id,
participation=participation,
creator=pctx.request.user,
comment=form.cleaned_data["comment"],
kind=flow_rule_kind.grading,
rule=new_grading_rule)
fre_grading.save()
# }}}
messages.add_message(pctx.request, messages.SUCCESS,
ugettext(
"Exception granted to '%(participation)s' "
"for '%(flow_id)s'.")
% {
'participation': participation,
'flow_id': flow_id})
return redirect(
"relate-grant_exception",
pctx.course.identifier)
else:
data = {
"restrict_to_same_tag": session.access_rules_tag is not None,
"credit_percent": grading_rule.credit_percent,
#"due_same_as_access_expiration": True,
"due": grading_rule.due,
}
for perm in access_rule.permissions:
data[perm] = True
form = ExceptionStage3Form(data, flow_desc, session.access_rules_tag)
return render_course_page(pctx, "course/generic-course-form.html", {
"form": form,
"form_description": ugettext("Grant Exception"),
"form_text": string_concat(
"<div class='well'>",
ugettext("Granting exception to '%(participation)s' "
"for '%(flow_id)s' (session %(session)s)."),
"</div>")
% {
'participation': participation,
'flow_id': flow_id,
'session': strify_session_for_exception(session)},
})
def grade_page_visit(visit, visit_grade_model=FlowPageVisitGrade, grade_data=None, graded_at_git_commit_sha=None):
if not visit.is_submitted_answer:
raise RuntimeError(_("cannot grade ungraded answer"))
flow_session = visit.flow_session
course = flow_session.course
page_data = visit.page_data
most_recent_grade = visit.get_most_recent_grade()
if most_recent_grade is not None and grade_data is None:
grade_data = most_recent_grade.grade_data
from course.content import (
get_course_repo,
get_course_commit_sha,
get_flow_desc,
get_flow_page_desc,
instantiate_flow_page,
)
repo = get_course_repo(course)
course_commit_sha = get_course_commit_sha(course, flow_session.participation)
flow_desc = get_flow_desc(repo, course, flow_session.flow_id, course_commit_sha)
page_desc = get_flow_page_desc(flow_session.flow_id, flow_desc, page_data.group_id, page_data.page_id)
page = instantiate_flow_page(
location="flow '%s', group, '%s', page '%s'" % (flow_session.flow_id, page_data.group_id, page_data.page_id),
repo=repo,
page_desc=page_desc,
commit_sha=course_commit_sha,
)
assert page.expects_answer()
if not page.is_answer_gradable():
return
from course.page import PageContext
grading_page_context = PageContext(
course=course, repo=repo, commit_sha=course_commit_sha, flow_session=flow_session
)
answer_feedback = page.grade(grading_page_context, visit.page_data.data, visit.answer, grade_data=grade_data)
grade = visit_grade_model()
grade.visit = visit
grade.grade_data = grade_data
grade.max_points = page.max_points(visit.page_data)
grade.graded_at_git_commit_sha = graded_at_git_commit_sha
bulk_feedback_json = None
if answer_feedback is not None:
grade.correctness = answer_feedback.correctness
grade.feedback, bulk_feedback_json = answer_feedback.as_json()
grade.save()
update_bulk_feedback(page_data, grade, bulk_feedback_json)
def page_analytics(pctx, flow_id, group_id, page_id):
if pctx.role not in [
participation_role.teaching_assistant,
participation_role.instructor,
participation_role.observer,
]:
raise PermissionDenied(_("must be at least TA to view analytics"))
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
restrict_to_first_attempt = int(
bool(pctx.request.GET.get("restrict_to_first_attempt") == "1"))
is_multiple_submit = is_flow_multiple_submit(flow_desc)
page_cache = PageInstanceCache(pctx.repo, pctx.course, flow_id)
visits = (FlowPageVisit.objects
.filter(
flow_session__course=pctx.course,
flow_session__flow_id=flow_id,
page_data__group_id=group_id,
page_data__page_id=page_id,
is_submitted_answer=True,
))
if connection.features.can_distinct_on_fields:
if restrict_to_first_attempt:
visits = (visits
.distinct("flow_session__participation__id")
.order_by("flow_session__participation__id", "visit_time"))
elif is_multiple_submit:
visits = (visits
.distinct("page_data__id")
.order_by("page_data__id", "-visit_time"))
visits = (visits
.select_related("flow_session")
.select_related("page_data"))
normalized_answer_and_correctness_to_count = {}
title = None
body = None
total_count = 0
graded_count = 0
for visit in visits:
page = page_cache.get_page(group_id, page_id, pctx.course_commit_sha)
from course.page import PageContext
grading_page_context = PageContext(
course=pctx.course,
repo=pctx.repo,
commit_sha=pctx.course_commit_sha,
flow_session=visit.flow_session)
title = page.title(grading_page_context, visit.page_data.data)
body = page.body(grading_page_context, visit.page_data.data)
normalized_answer = page.normalized_answer(
grading_page_context, visit.page_data.data, visit.answer)
answer_feedback = visit.get_most_recent_feedback()
if answer_feedback is not None:
key = (normalized_answer, answer_feedback.correctness)
normalized_answer_and_correctness_to_count[key] = \
normalized_answer_and_correctness_to_count.get(key, 0) + 1
graded_count += 1
else:
key = (normalized_answer, None)
normalized_answer_and_correctness_to_count[key] = \
normalized_answer_and_correctness_to_count.get(key, 0) + 1
total_count += 1
answer_stats = []
for (normalized_answer, correctness), count in \
six.iteritems(normalized_answer_and_correctness_to_count):
answer_stats.append(
AnswerStats(
normalized_answer=normalized_answer,
correctness=correctness,
count=count,
percentage=safe_div(100 * count, total_count)))
answer_stats = sorted(
answer_stats,
key=lambda astats: astats.percentage,
reverse=True)
return render_course_page(pctx, "course/analytics-page.html", {
"flow_identifier": flow_id,
"group_id": group_id,
"page_id": page_id,
"title": title,
"body": body,
"answer_stats_list": answer_stats,
"restrict_to_first_attempt": restrict_to_first_attempt,
})
def grant_exception_stage_2(pctx, participation_id, flow_id):
# type: (CoursePageContext, Text, Text) -> http.HttpResponse
if not pctx.has_permission(pperm.grant_exception):
raise PermissionDenied(_("may not grant exceptions"))
# {{{ get flow data
participation = get_object_or_404(Participation, id=participation_id)
form_text = (
string_concat(
"<div class='well'>",
ugettext("Granting exception to '%(participation)s' for "
"'%(flow_id)s'."),
"</div>")
% {
'participation': participation,
'flow_id': flow_id})
from course.content import get_flow_desc
try:
flow_desc = get_flow_desc(pctx.repo, pctx.course, flow_id,
pctx.course_commit_sha)
except ObjectDoesNotExist:
raise http.Http404()
now_datetime = get_now_or_fake_time(pctx.request)
if hasattr(flow_desc, "rules"):
access_rules_tags = getattr(flow_desc.rules, "tags", [])
else:
access_rules_tags = []
NONE_SESSION_TAG = string_concat("<<<", _("NONE"), ">>>") # noqa
session_tag_choices = [
(tag, tag)
for tag in access_rules_tags] + [(NONE_SESSION_TAG,
string_concat("(", _("NONE"), ")"))]
from course.utils import get_session_start_rule
session_start_rule = get_session_start_rule(pctx.course, participation,
flow_id, flow_desc, now_datetime)
create_session_is_override = False
if not session_start_rule.may_start_new_session:
create_session_is_override = True
form_text += ("<div class='alert alert-info'>%s</div>" % (
string_concat(
"<i class='fa fa-info-circle'></i> ",
_("Creating a new session is (technically) not allowed "
"by course rules. Clicking 'Create Session' anyway will "
"override this rule."))))
default_tag = session_start_rule.tag_session
if default_tag is None:
default_tag = NONE_SESSION_TAG
# }}}
def find_sessions():
# type: () -> List[FlowSession]
return list(FlowSession.objects
.filter(
participation=participation,
flow_id=flow_id)
.order_by("start_time"))
exception_form = None
request = pctx.request
if request.method == "POST":
exception_form = ExceptionStage2Form(find_sessions(), request.POST)
create_session_form = CreateSessionForm(
session_tag_choices, default_tag, create_session_is_override,
request.POST)
if "create_session" in request.POST or "next" in request.POST:
pass
else:
raise SuspiciousOperation(_("invalid command"))
if create_session_form.is_valid() and "create_session" in request.POST:
from course.flow import start_flow
access_rules_tag = (
create_session_form.cleaned_data[
"access_rules_tag_for_new_session"])
if access_rules_tag == NONE_SESSION_TAG:
access_rules_tag = None
start_flow(pctx.repo, pctx.course, participation,
user=participation.user,
flow_id=flow_id,
flow_desc=flow_desc,
session_start_rule=session_start_rule,
now_datetime=now_datetime)
exception_form = None
elif exception_form.is_valid() and "next" in request.POST: # type: ignore
return redirect(
"relate-grant_exception_stage_3",
pctx.course.identifier,
participation.id,
flow_id,
exception_form.cleaned_data["session"]) # type: ignore
else:
create_session_form = CreateSessionForm(
session_tag_choices, default_tag, create_session_is_override)
if exception_form is None:
exception_form = ExceptionStage2Form(find_sessions())
return render_course_page(pctx, "course/generic-course-form.html", {
"forms": [exception_form, create_session_form],
"form_text": form_text,
"form_description": _("Grant Exception"),
})
