def grade_page_visits(fctx, flow_session, answer_visits, force_regrade=False):
for i in range(len(answer_visits)):
answer_visit = answer_visits[i]
if answer_visit is not None:
answer_visit.is_graded_answer = True
answer_visit.save()
else:
page_data = flow_session.page_data.get(ordinal=i)
page = instantiate_flow_page_with_ctx(fctx, page_data)
if not page.expects_answer():
continue
# Create a synthetic visit to attach a grade
answer_visit = FlowPageVisit()
answer_visit.flow_session = flow_session
answer_visit.page_data = page_data
answer_visit.is_synthetic = True
answer_visit.answer = None
answer_visit.is_graded_answer = True
answer_visit.save()
answer_visits[i] = answer_visit
if (answer_visit is not None
and (not answer_visit.grades.count() or force_regrade)):
grade_page_visit(answer_visit,
graded_at_git_commit_sha=fctx.flow_commit_sha)
def grade_page_visits(fctx, flow_session, answer_visits):
for i in range(len(answer_visits)):
answer_visit = answer_visits[i]
if answer_visit is not None:
answer_visit.is_graded_answer = True
answer_visit.save()
else:
page_data = flow_session.page_data.get(ordinal=i)
page = instantiate_flow_page_with_ctx(fctx, page_data)
if not page.expects_answer():
continue
# Create a synthetic visit to attach a grade
answer_visit = FlowPageVisit()
answer_visit.flow_session = flow_session
answer_visit.page_data = page_data
answer_visit.is_synthetic = True
answer_visit.answer = None
answer_visit.is_graded_answer = True
answer_visit.save()
answer_visits[i] = answer_visit
if answer_visit is not None:
grade_page_visit(answer_visit)
def view_flow_page(pctx, flow_identifier, ordinal):
request = pctx.request
flow_session = find_current_flow_session(request, flow_identifier)
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("course.flow.start_flow",
pctx.course.identifier,
flow_identifier)
fpctx = FlowPageContext(pctx.repo, pctx.course, flow_identifier, ordinal,
participation=pctx.participation,
flow_session=flow_session)
if fpctx.page_desc is None:
messages.add_message(request, messages.ERROR,
"Your session does not match the course content and needs "
"to be reset. Course staff have been notified about this issue. "
"Please get in touch with them to get help.")
from django.template.loader import render_to_string
message = render_to_string("course/session-mismatch.txt", {
"page_data": fpctx.page_data,
"course": pctx.course,
"user": pctx.request.user,
})
from django.core.mail import send_mail
from django.conf import settings
send_mail("[%s] session mismatch with course content"
% pctx.course.identifier,
message,
settings.ROBOT_EMAIL_FROM,
recipient_list=[pctx.course.email])
return redirect("course.flow.start_flow",
pctx.course.identifier,
flow_identifier)
current_access_rule = fpctx.get_current_access_rule(
flow_session, pctx.role, pctx.participation,
get_now_or_fake_time(request))
page_context = fpctx.page_context
page_data = fpctx.page_data
if flow_permission.view not in current_access_rule.permissions:
raise PermissionDenied("not allowed to view flow")
if request.method == "POST":
if "finish" in request.POST:
return redirect("course.flow.finish_flow_session_view",
pctx.course.identifier, flow_identifier)
else:
# reject answer update if flow is not in-progress
if not flow_session.in_progress:
raise PermissionDenied("session is not in progress")
# reject if previous answer was final
if (fpctx.prev_answer_visit is not None
and fpctx.prev_answer_visit.is_graded_answer
and flow_permission.change_answer
not in current_access_rule.permissions):
raise PermissionDenied("already have final answer")
form, form_html = fpctx.page.post_form(
fpctx.page_context, fpctx.page_data.data,
post_data=request.POST, files_data=request.POST)
pressed_button = get_pressed_button(form)
if 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']
page_visit.answer = fpctx.page.answer_data(
fpctx.page_context, fpctx.page_data.data,
form)
page_visit.is_graded_answer = pressed_button == "submit"
page_visit.save()
answer_was_graded = page_visit.is_graded_answer
may_change_answer = (
not answer_was_graded
or flow_permission.change_answer
in current_access_rule.permissions)
feedback = fpctx.page.grade(
page_context, page_data.data, page_visit.answer,
grade_data=None)
if page_visit.is_graded_answer:
grade = FlowPageVisitGrade()
grade.visit = page_visit
grade.max_points = fpctx.page.max_points(page_data.data)
grade.graded_at_git_commit_sha = fpctx.flow_commit_sha
if feedback is not None:
grade.correctness = feedback.correctness
grade.feedback = feedback.as_json()
grade.save()
del grade
if (pressed_button == "save_and_next"
and not will_receive_feedback(
current_access_rule.permissions)):
return redirect("course.flow.view_flow_page",
pctx.course.identifier,
flow_identifier,
fpctx.ordinal + 1)
elif (pressed_button == "save_and_finish"
and not will_receive_feedback(
current_access_rule.permissions)):
return redirect("course.flow.finish_flow_session_view",
pctx.course.identifier, flow_identifier)
else:
form, form_html = 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_graded_answer
else:
answer_was_graded = False
may_change_answer = (
(not answer_was_graded
or (flow_permission.change_answer
in current_access_rule.permissions))
# can happen if no answer was ever saved
and flow_session.in_progress)
if fpctx.page.expects_answer():
if fpctx.prev_answer_visit is not None:
answer_data = fpctx.prev_answer_visit.answer
feedback = fpctx.prev_answer_visit.get_most_recent_feedback()
else:
answer_data = None
feedback = None
form, form_html = fpctx.page.make_form(
page_context, page_data.data,
answer_data, not may_change_answer)
else:
form = None
form_html = 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,
current_access_rule.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 current_access_rule.permissions
or (
(flow_permission.see_correctness_after_completion
in current_access_rule.permissions)
and not flow_session.in_progress))
show_answer = flow_permission.see_answer in current_access_rule.permissions
if show_correctness or show_answer:
shown_feedback = feedback
title = fpctx.page.title(page_context, page_data.data)
body = fpctx.page.body(page_context, page_data.data)
# {{{ render flow page
if form is not None and form_html is None:
from crispy_forms.utils import render_crispy_form
from django.template import RequestContext
context = RequestContext(request, {})
form_html = render_crispy_form(form, context=context)
del context
args = {
"flow_identifier": fpctx.flow_identifier,
"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,
"title": title, "body": body,
"form": form,
"form_html": form_html,
"feedback": shown_feedback,
"show_correctness": show_correctness,
"may_change_answer": may_change_answer,
"will_receive_feedback":
will_receive_feedback(current_access_rule.permissions),
"show_answer": show_answer,
}
if fpctx.page.expects_answer():
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_flow_page(request, course_identifier, flow_identifier, ordinal):
flow_session = find_current_flow_session(request, flow_identifier)
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("course.flow.start_flow",
course_identifier,
flow_identifier)
fpctx = FlowPageContext(request, course_identifier, flow_identifier,
ordinal, flow_session)
page_context = fpctx.page_context
page_data = fpctx.page_data
if flow_permission.view not in fpctx.permissions:
raise PermissionDenied("not allowed to view flow")
if request.method == "POST":
if "finish" in request.POST:
return redirect("course.flow.finish_flow_session_view",
course_identifier, flow_identifier)
else:
# reject answer update if flow is not in-progress
if not flow_session.in_progress:
raise PermissionDenied("session is not in progress")
# reject if previous answer was final
if (fpctx.prev_answer_visit is not None
and fpctx.prev_answer_visit.is_graded_answer
and flow_permission.change_answer not in fpctx.permissions):
raise PermissionDenied("already have final answer")
form, form_html = fpctx.page.post_form(
fpctx.page_context, fpctx.page_data.data,
post_data=request.POST, files_data=request.POST)
pressed_button = get_pressed_button(form)
if form.is_valid():
# {{{ form validated, process answer
messages.add_message(request, messages.INFO,
"Answer saved.")
page_visit = FlowPageVisit()
page_visit.flow_session = fpctx.flow_session
page_visit.page_data = fpctx.page_data
page_visit.remote_address = request.META['REMOTE_ADDR']
page_visit.answer = fpctx.page.answer_data(
fpctx.page_context, fpctx.page_data.data,
form)
page_visit.is_graded_answer = pressed_button == "submit"
page_visit.save()
answer_was_graded = page_visit.is_graded_answer
may_change_answer = (
not answer_was_graded
or flow_permission.change_answer in fpctx.permissions)
feedback = fpctx.page.grade(
page_context, page_data.data, page_visit.answer,
grade_data=None)
if page_visit.is_graded_answer:
grade = FlowPageVisitGrade()
grade.visit = page_visit
grade.max_points = fpctx.page.max_points(page_data.data)
if feedback is not None:
grade.correctness = feedback.correctness
grade.feedback = feedback.as_json()
grade.save()
del grade
if (pressed_button == "save_and_next"
and not fpctx.will_receive_feedback()):
return redirect("course.flow.view_flow_page",
course_identifier,
flow_identifier,
fpctx.ordinal + 1)
elif (pressed_button == "save_and_finish"
and not fpctx.will_receive_feedback()):
return redirect("course.flow.finish_flow_session_view",
course_identifier, flow_identifier)
else:
form, form_html = 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
fpctx.create_visit(request)
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:
fpctx.create_visit(request)
if fpctx.prev_answer_visit is not None:
answer_was_graded = fpctx.prev_answer_visit.is_graded_answer
else:
answer_was_graded = False
may_change_answer = (
(not answer_was_graded
or flow_permission.change_answer in fpctx.permissions)
# can happen if no answer was ever saved
and fpctx.flow_session.in_progress)
if fpctx.page.expects_answer():
if fpctx.prev_answer_visit is not None:
answer_data = fpctx.prev_answer_visit.answer
feedback = fpctx.prev_answer_visit.get_most_recent_feedback()
else:
answer_data = None
feedback = None
form, form_html = fpctx.page.make_form(
page_context, page_data.data,
answer_data, not may_change_answer)
else:
form = None
form_html = 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(fpctx, form)
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 fpctx.permissions
show_answer = flow_permission.see_answer in fpctx.permissions
if show_correctness or show_answer:
shown_feedback = feedback
title = fpctx.page.title(page_context, page_data.data)
body = fpctx.page.body(page_context, page_data.data)
# {{{ render flow page
if form is not None and form_html is None:
from crispy_forms.utils import render_crispy_form
from django.template import RequestContext
context = RequestContext(request, {})
form_html = render_crispy_form(form, context=context)
del context
args = {
"course": fpctx.course,
"course_desc": fpctx.course_desc,
"flow_identifier": fpctx.flow_identifier,
"flow_desc": fpctx.flow_desc,
"ordinal": fpctx.ordinal,
"page_data": fpctx.page_data,
"percentage": fpctx.percentage_done,
"flow_session": fpctx.flow_session,
"participation": fpctx.participation,
"role": fpctx.role,
"participation_role": participation_role,
"title": title, "body": body,
"form": form,
"form_html": form_html,
"feedback": shown_feedback,
"show_correctness": show_correctness,
"may_change_answer": may_change_answer,
"will_receive_feedback": fpctx.will_receive_feedback(),
"show_answer": show_answer,
}
if fpctx.page.expects_answer():
args["max_points"] = fpctx.page.max_points(fpctx.page_data)
return render(request, "course/flow-page.html", args)