def grade_flow_session(fctx, flow_session, current_access_rule,
answer_visits=None):
"""Updates the grade on an existing flow session and logs a
grade change with the grade records subsystem.
"""
if answer_visits is None:
answer_visits = assemble_answer_visits(flow_session)
(answered_count, unanswered_count) = count_answered(
fctx, flow_session, answer_visits)
is_graded_flow = bool(answered_count + unanswered_count)
is_graded_flow = bool(answered_count + unanswered_count)
grade_info = gather_grade_info(flow_session, answer_visits)
assert grade_info is not None
comment = None
points = grade_info.points
if points is not None and current_access_rule.credit_percent is not None:
comment = "Counted at %.1f%% of %.1f points" % (
current_access_rule.credit_percent, points)
points = points * current_access_rule.credit_percent / 100
flow_session.points = points
flow_session.max_points = grade_info.max_points
flow_session.result_comment = comment
flow_session.save()
# Need to save grade record even if no grade is available yet, because
# a grade record may *already* be saved, and that one might be mistaken
# for the current one.
if (is_graded_flow
and flow_session.participation is not None
and flow_session.for_credit):
from course.models import get_flow_grading_opportunity
gopp = get_flow_grading_opportunity(
flow_session.course, flow_session.flow_id, fctx.flow_desc)
from course.models import grade_state_change_types
gchange = GradeChange()
gchange.opportunity = gopp
gchange.participation = flow_session.participation
gchange.state = grade_state_change_types.graded
gchange.attempt_id = "flow-session-%d" % flow_session.id
gchange.points = points
gchange.max_points = grade_info.max_points
# creator left as NULL
gchange.flow_session = flow_session
gchange.comment = comment
gchange.save()
return grade_info
def grade_flow_session(fctx, flow_session, grading_rule, answer_visits=None):
"""Updates the grade on an existing flow session and logs a
grade change with the grade records subsystem.
"""
if answer_visits is None:
answer_visits = assemble_answer_visits(flow_session)
(answered_count, unanswered_count) = count_answered_gradable(fctx, flow_session, answer_visits)
is_graded_flow = bool(answered_count + unanswered_count)
grade_info = gather_grade_info(fctx, flow_session, answer_visits)
assert grade_info is not None
comment = None
points = grade_info.points
if points is not None and grading_rule.credit_percent is not None and grading_rule.credit_percent != 100:
comment = (
# Translators: grade flow: calculating grade.
_("Counted at %(percent).1f%% of %(point).1f points")
% {"percent": grading_rule.credit_percent, "point": points}
)
points = points * grading_rule.credit_percent / 100
flow_session.points = points
flow_session.max_points = grade_info.max_points
flow_session.append_comment(comment)
flow_session.save()
# Need to save grade record even if no grade is available yet, because
# a grade record may *already* be saved, and that one might be mistaken
# for the current one.
if grading_rule.grade_identifier and is_graded_flow and flow_session.participation is not None:
from course.models import get_flow_grading_opportunity
gopp = get_flow_grading_opportunity(flow_session.course, flow_session.flow_id, fctx.flow_desc, grading_rule)
from course.models import grade_state_change_types
gchange = GradeChange()
gchange.opportunity = gopp
gchange.participation = flow_session.participation
gchange.state = grade_state_change_types.graded
gchange.attempt_id = "flow-session-%d" % flow_session.id
gchange.points = points
gchange.max_points = grade_info.max_points
# creator left as NULL
gchange.flow_session = flow_session
gchange.comment = comment
previous_grade_changes = list(
GradeChange.objects.filter(
opportunity=gchange.opportunity,
participation=gchange.participation,
state=gchange.state,
attempt_id=gchange.attempt_id,
flow_session=gchange.flow_session,
).order_by("-grade_time")[:1]
)
# only save if modified or no previous grades
do_save = True
if previous_grade_changes:
previous_grade_change, = previous_grade_changes
if (
previous_grade_change.points == gchange.points
and previous_grade_change.max_points == gchange.max_points
and previous_grade_change.comment == gchange.comment
):
do_save = False
else:
# no previous grade changes
if points is None:
do_save = False
if do_save:
gchange.save()
return grade_info
def finish_flow_session(fctx, flow_session, current_access_rule,
force_regrade=False):
if not flow_session.in_progress:
raise RuntimeError("Can't end a session that's already ended")
answer_visits = assemble_answer_visits(flow_session)
(answered_count, unanswered_count) = count_answered(
fctx, flow_session, answer_visits)
is_graded_flow = bool(answered_count + unanswered_count)
if is_graded_flow:
grade_page_visits(fctx, flow_session, answer_visits,
force_regrade=force_regrade)
# ORDERING RESTRICTION: Must grade pages before gathering grade info
grade_info = gather_grade_info(flow_session, answer_visits)
comment = None
if grade_info is not None:
points = grade_info.points
if current_access_rule.credit_percent is not None:
comment = "Counted at %.1f%% of %.1f points" % (
current_access_rule.credit_percent, points)
points = points * current_access_rule.credit_percent / 100
else:
points = None
from django.utils.timezone import now
flow_session.completion_time = now()
flow_session.in_progress = False
if grade_info is not None:
flow_session.points = points
flow_session.max_points = grade_info.max_points
else:
flow_session.points = None
flow_session.max_points = None
flow_session.result_comment = comment
flow_session.save()
if (is_graded_flow
and flow_session.participation is not None
and grade_info is not None
and flow_session.for_credit):
from course.models import get_flow_grading_opportunity
gopp = get_flow_grading_opportunity(
flow_session.course, flow_session.flow_id, fctx.flow_desc)
from course.models import grade_state_change_types
gchange = GradeChange()
gchange.opportunity = gopp
gchange.participation = flow_session.participation
gchange.state = grade_state_change_types.graded
gchange.attempt_id = "flow-session-%d" % flow_session.id
gchange.points = points
gchange.max_points = grade_info.max_points
# creator left as NULL
gchange.flow_session = flow_session
gchange.comment = comment
gchange.save()
return grade_info
