def update_expiration_mode(pctx, flow_session_id):
if pctx.request.method != "POST":
raise SuspiciousOperation(_("only POST allowed"))
flow_session = get_object_or_404(FlowSession, id=flow_session_id)
if flow_session.participation != pctx.participation:
raise PermissionDenied(_("may only change your own flow sessions"))
if not flow_session.in_progress:
raise PermissionDenied(_("may only change in-progress flow sessions"))
expmode = pctx.request.POST.get("expiration_mode")
if not any(expmode == em_key for em_key, _ in FLOW_SESSION_EXPIRATION_MODE_CHOICES):
raise SuspiciousOperation(_("invalid expiration mode"))
fctx = FlowContext(
pctx.repo, pctx.course, flow_session.flow_id, participation=pctx.participation, flow_session=flow_session
)
access_rule = get_session_access_rule(
flow_session, pctx.role, fctx.flow_desc, get_now_or_fake_time(pctx.request), pctx.remote_address
)
if is_expiration_mode_allowed(expmode, access_rule.permissions):
flow_session.expiration_mode = expmode
flow_session.save()
return http.HttpResponse("OK")
else:
raise PermissionDenied()
def expire_flow_session(fctx, flow_session, grading_rule, now_datetime, past_due_only=False):
if not flow_session.in_progress:
raise RuntimeError(_("Can't expire a session that's not in progress"))
if flow_session.participation is None:
raise RuntimeError(_("Can't expire an anonymous flow session"))
assert isinstance(grading_rule, FlowSessionGradingRule)
if past_due_only and grading_rule.due is not None and now_datetime < grading_rule.due:
return False
if flow_session.expiration_mode == flow_session_expiration_mode.roll_over:
session_start_rule = get_session_start_rule(
flow_session.course,
flow_session.participation,
flow_session.participation.role,
flow_session.flow_id,
fctx.flow_desc,
now_datetime,
for_rollover=True,
)
if not session_start_rule.may_start_new_session:
# No new session allowed: finish.
return finish_flow_session(fctx, flow_session, grading_rule, now_datetime=now_datetime)
flow_session.access_rules_tag = session_start_rule.tag_session
access_rule = get_session_access_rule(
flow_session, flow_session.participation.role, fctx.flow_desc, now_datetime
)
if not is_expiration_mode_allowed(flow_session.expiration_mode, access_rule.permissions):
flow_session.expiration_mode = flow_session_expiration_mode.end
flow_session.save()
return True
elif flow_session.expiration_mode == flow_session_expiration_mode.end:
return finish_flow_session(fctx, flow_session, grading_rule, now_datetime=now_datetime)
else:
raise ValueError(
_("invalid expiration mode '%(mode)s' on flow session ID " "%(session_id)d")
% {"mode": flow_session.expiration_mode, "session_id": flow_session.id}
)
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_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 view_flow_page(pctx, flow_session_id, ordinal):
request = pctx.request
ordinal = int(ordinal)
flow_session_id = int(flow_session_id)
flow_session = get_and_check_flow_session(pctx, flow_session_id)
flow_id = flow_session.flow_id
if flow_session is None:
messages.add_message(
request,
messages.WARNING,
_("No in-progress session record found for this flow. " "Redirected to flow start page."),
)
return redirect("relate-view_start_flow", pctx.course.identifier, flow_id)
try:
fpctx = FlowPageContext(
pctx.repo, pctx.course, flow_id, ordinal, participation=pctx.participation, flow_session=flow_session
)
except PageOrdinalOutOfRange:
return redirect("relate-view_flow_page", pctx.course.identifier, flow_session.id, flow_session.page_count - 1)
access_rule = get_session_access_rule(
flow_session, pctx.role, fpctx.flow_desc, get_now_or_fake_time(request), pctx.remote_address
)
permissions = fpctx.page.get_modified_permissions_for_page(access_rule.permissions)
if access_rule.message:
messages.add_message(request, messages.INFO, access_rule.message)
page_context = fpctx.page_context
page_data = fpctx.page_data
answer_data = None
grade_data = None
if flow_permission.view not in permissions:
raise PermissionDenied(_("not allowed to view flow"))
if request.method == "POST":
if "finish" in request.POST:
return redirect("relate-finish_flow_session_view", pctx.course.identifier, flow_session_id)
else:
submission_allowed = True
# reject answer update if permission not present
if flow_permission.submit_answer not in permissions:
messages.add_message(request, messages.ERROR, _("Answer submission not allowed."))
submission_allowed = False
# reject if previous answer was final
if (
fpctx.prev_answer_visit is not None
and fpctx.prev_answer_visit.is_submitted_answer
and flow_permission.change_answer not in permissions
):
messages.add_message(request, messages.ERROR, _("Already have final answer."))
submission_allowed = False
form = fpctx.page.post_form(
fpctx.page_context, fpctx.page_data.data, post_data=request.POST, files_data=request.FILES
)
pressed_button = get_pressed_button(form)
if submission_allowed and form.is_valid():
# {{{ form validated, process answer
messages.add_message(request, messages.INFO, _("Answer saved."))
page_visit = FlowPageVisit()
page_visit.flow_session = flow_session
page_visit.page_data = fpctx.page_data
page_visit.remote_address = request.META["REMOTE_ADDR"]
answer_data = page_visit.answer = fpctx.page.answer_data(
fpctx.page_context, fpctx.page_data.data, form, request.FILES
)
page_visit.is_submitted_answer = pressed_button == "submit"
page_visit.save()
answer_was_graded = page_visit.is_submitted_answer
may_change_answer = not answer_was_graded or flow_permission.change_answer in permissions
if fpctx.page.is_answer_gradable():
feedback = fpctx.page.grade(page_context, page_data.data, page_visit.answer, grade_data=None)
if page_visit.is_submitted_answer:
grade = FlowPageVisitGrade()
grade.visit = page_visit
grade.max_points = fpctx.page.max_points(page_data.data)
grade.graded_at_git_commit_sha = pctx.course_commit_sha
bulk_feedback_json = None
if feedback is not None:
grade.correctness = feedback.correctness
grade.feedback, bulk_feedback_json = feedback.as_json()
grade.save()
update_bulk_feedback(page_data, grade, bulk_feedback_json)
del grade
else:
feedback = None
if pressed_button == "save_and_next" and not will_receive_feedback(permissions):
return redirect("relate-view_flow_page", pctx.course.identifier, flow_session_id, fpctx.ordinal + 1)
elif pressed_button == "save_and_finish" and not will_receive_feedback(permissions):
return redirect("relate-finish_flow_session_view", pctx.course.identifier, flow_session_id)
else:
form = fpctx.page.make_form(page_context, page_data.data, page_visit.answer, not may_change_answer)
# continue at common flow page generation below
# }}}
del page_visit
else:
# form did not validate
create_flow_page_visit(request, flow_session, fpctx.page_data)
answer_was_graded = False
may_change_answer = True
# because we were allowed this far in by the check above
feedback = None
# continue at common flow page generation below
else:
create_flow_page_visit(request, flow_session, fpctx.page_data)
if fpctx.prev_answer_visit is not None:
answer_was_graded = fpctx.prev_answer_visit.is_submitted_answer
else:
answer_was_graded = False
may_change_answer = (
(not answer_was_graded or (flow_permission.change_answer in permissions))
# can happen if no answer was ever saved
and flow_session.in_progress
and (flow_permission.submit_answer in permissions)
)
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
form = fpctx.page.make_form(page_context, page_data.data, answer_data, not may_change_answer)
else:
form = None
feedback = None
# start common flow page generation
# defined at this point:
# form, form_html, may_change_answer, answer_was_graded, feedback
if form is not None and may_change_answer:
form = add_buttons_to_form(form, fpctx, flow_session, permissions)
show_correctness = None
show_answer = None
shown_feedback = None
if fpctx.page.expects_answer() and answer_was_graded:
show_correctness = flow_permission.see_correctness in permissions
show_answer = flow_permission.see_answer_after_submission in permissions
if show_correctness or show_answer:
shown_feedback = feedback
elif fpctx.page.expects_answer() and not answer_was_graded:
# Don't show answer yet
show_answer = flow_permission.see_answer_before_submission in permissions
else:
show_answer = (
flow_permission.see_answer_before_submission in permissions
or flow_permission.see_answer_after_submission in permissions
)
title = fpctx.page.title(page_context, page_data.data)
body = fpctx.page.body(page_context, page_data.data)
if show_answer:
correct_answer = fpctx.page.correct_answer(page_context, page_data.data, answer_data, grade_data)
else:
correct_answer = None
# {{{ render flow page
if form is not None:
form_html = fpctx.page.form_to_html(pctx.request, page_context, form, answer_data)
else:
form_html = None
expiration_mode_choices = []
for key, descr in FLOW_SESSION_EXPIRATION_MODE_CHOICES:
if is_expiration_mode_allowed(key, permissions):
expiration_mode_choices.append((key, descr))
args = {
"flow_identifier": fpctx.flow_id,
"flow_desc": fpctx.flow_desc,
"ordinal": fpctx.ordinal,
"page_data": fpctx.page_data,
"percentage": int(100 * (fpctx.ordinal + 1) / flow_session.page_count),
"flow_session": flow_session,
"page_numbers": zip(range(flow_session.page_count), range(1, flow_session.page_count + 1)),
"title": title,
"body": body,
"form": form,
"form_html": form_html,
"feedback": shown_feedback,
"correct_answer": correct_answer,
"show_correctness": show_correctness,
"may_change_answer": may_change_answer,
"may_change_graded_answer": ((flow_permission.change_answer in permissions) and flow_session.in_progress),
"will_receive_feedback": will_receive_feedback(permissions),
"show_answer": show_answer,
"expiration_mode_choices": expiration_mode_choices,
"expiration_mode_choice_count": len(expiration_mode_choices),
"expiration_mode": flow_session.expiration_mode,
}
if fpctx.page.expects_answer() and fpctx.page.is_answer_gradable():
args["max_points"] = fpctx.page.max_points(fpctx.page_data)
return render_course_page(pctx, "course/flow-page.html", args, allow_instant_flow_requests=False)
def view_start_flow(pctx, flow_id):
request = pctx.request
now_datetime = get_now_or_fake_time(request)
fctx = FlowContext(pctx.repo, pctx.course, flow_id, participation=pctx.participation)
session_start_rule = get_session_start_rule(
pctx.course,
pctx.participation,
pctx.role,
flow_id,
fctx.flow_desc,
now_datetime,
remote_address=pctx.remote_address,
)
if request.method == "POST":
if "start" in request.POST:
if not session_start_rule.may_start_new_session:
raise PermissionDenied(_("new session not allowed"))
session = start_flow(
pctx.repo,
pctx.course,
pctx.participation,
flow_id,
fctx.flow_desc,
access_rules_tag=session_start_rule.tag_session,
now_datetime=now_datetime,
)
return redirect("relate-view_flow_page", pctx.course.identifier, session.id, 0)
else:
raise SuspiciousOperation(_("unrecognized POST action"))
else:
if session_start_rule.may_list_existing_sessions:
past_sessions = FlowSession.objects.filter(
participation=pctx.participation, flow_id=fctx.flow_id, participation__isnull=False
).order_by("start_time")
from collections import namedtuple
SessionProperties = namedtuple(
"SessionProperties", ["may_view", "may_modify", "due", "grade_description"] # noqa
)
past_sessions_and_properties = []
for session in past_sessions:
access_rule = get_session_access_rule(
session, pctx.role, fctx.flow_desc, now_datetime, remote_address=pctx.remote_address
)
grading_rule = get_session_grading_rule(session, pctx.role, fctx.flow_desc, now_datetime)
session_properties = SessionProperties(
may_view=flow_permission.view in access_rule.permissions,
may_modify=(
flow_permission.submit_answer in access_rule.permissions
or flow_permission.end_session in access_rule.permissions
),
due=grading_rule.due,
grade_description=grading_rule.description,
)
past_sessions_and_properties.append((session, session_properties))
else:
past_sessions_and_properties = []
may_start = session_start_rule.may_start_new_session
potential_session = FlowSession(
course=pctx.course,
participation=pctx.participation,
flow_id=flow_id,
in_progress=True,
expiration_mode=flow_session_expiration_mode.end,
access_rules_tag=session_start_rule.tag_session,
)
new_session_grading_rule = get_session_grading_rule(potential_session, pctx.role, fctx.flow_desc, now_datetime)
start_may_decrease_grade = bool(
past_sessions_and_properties
) and new_session_grading_rule.grade_aggregation_strategy not in [
None,
grade_aggregation_strategy.max_grade,
grade_aggregation_strategy.use_earliest,
]
return render_course_page(
pctx,
"course/flow-start.html",
{
"flow_desc": fctx.flow_desc,
"flow_identifier": flow_id,
"now": now_datetime,
"may_start": may_start,
"new_session_grading_rule": new_session_grading_rule,
"grade_aggregation_strategy_descr": (
dict(GRADE_AGGREGATION_STRATEGY_CHOICES).get(new_session_grading_rule.grade_aggregation_strategy)
),
"start_may_decrease_grade": start_may_decrease_grade,
"past_sessions_and_properties": past_sessions_and_properties,
},
allow_instant_flow_requests=False,
)
def finish_flow_session_view(pctx, flow_session_id):
now_datetime = get_now_or_fake_time(pctx.request)
request = pctx.request
flow_session_id = int(flow_session_id)
flow_session = get_and_check_flow_session(pctx, flow_session_id)
flow_id = flow_session.flow_id
fctx = FlowContext(pctx.repo, pctx.course, flow_id, participation=pctx.participation, flow_session=flow_session)
access_rule = get_session_access_rule(flow_session, pctx.role, fctx.flow_desc, now_datetime, pctx.remote_address)
answer_visits = assemble_answer_visits(flow_session)
from course.content import markup_to_html
completion_text = markup_to_html(fctx.course, fctx.repo, pctx.course_commit_sha, fctx.flow_desc.completion_text)
(answered_count, unanswered_count) = count_answered_gradable(fctx, flow_session, answer_visits)
is_graded_flow = bool(answered_count + unanswered_count)
if flow_permission.view not in access_rule.permissions:
raise PermissionDenied()
def render_finish_response(template, **kwargs):
render_args = {"flow_identifier": fctx.flow_id, "flow_desc": fctx.flow_desc}
render_args.update(kwargs)
return render_course_page(pctx, template, render_args, allow_instant_flow_requests=False)
if request.method == "POST":
if "submit" not in request.POST:
raise SuspiciousOperation(_("odd POST parameters"))
if not flow_session.in_progress:
raise PermissionDenied(_("Can't end a session that's already ended"))
if flow_permission.end_session not in access_rule.permissions:
raise PermissionDenied(_("not permitted to end session"))
grading_rule = get_session_grading_rule(flow_session, pctx.role, fctx.flow_desc, now_datetime)
grade_info = finish_flow_session(fctx, flow_session, grading_rule, now_datetime=now_datetime)
if is_graded_flow:
return render_finish_response(
"course/flow-completion-grade.html", completion_text=completion_text, grade_info=grade_info
)
else:
return render_finish_response(
"course/flow-completion.html",
last_page_nr=None,
flow_session=flow_session,
completion_text=completion_text,
)
if not is_graded_flow or (flow_session.in_progress and flow_permission.end_session not in access_rule.permissions):
# No ability to end--just show completion page.
return render_finish_response(
"course/flow-completion.html",
last_page_nr=flow_session.page_count - 1,
flow_session=flow_session,
completion_text=completion_text,
)
elif not flow_session.in_progress:
# Just reviewing: re-show grades.
grade_info = gather_grade_info(fctx, flow_session, answer_visits)
return render_finish_response(
"course/flow-completion-grade.html", completion_text=completion_text, grade_info=grade_info
)
else:
# confirm ending flow
return render_finish_response(
"course/flow-confirm-completion.html",
last_page_nr=flow_session.page_count - 1,
flow_session=flow_session,
answered_count=answered_count,
unanswered_count=unanswered_count,
total_count=answered_count + unanswered_count,
)
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),
})
