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 count_answered_gradable(fctx, flow_session, answer_visits):
all_page_data = FlowPageData.objects.filter(flow_session=flow_session, ordinal__isnull=False).order_by("ordinal")
answered_count = 0
unanswered_count = 0
for i, page_data in enumerate(all_page_data):
assert i == page_data.ordinal
if answer_visits[i] is not None:
answer_data = answer_visits[i].answer
else:
answer_data = None
page = instantiate_flow_page_with_ctx(fctx, page_data)
if page.expects_answer() and page.is_answer_gradable():
if answer_data is None:
unanswered_count += 1
else:
answered_count += 1
return (answered_count, unanswered_count)
def get_flow_session_content(api_ctx, course_identifier):
# type: (APIContext, Text) -> http.HttpResponse
if not api_ctx.has_permission(pperm.view_gradebook):
raise PermissionDenied("token role does not have required permissions")
try:
session_id_str = api_ctx.request.GET["flow_session_id"]
except KeyError:
raise APIError("must specify flow_id GET parameter")
session_id = int(session_id_str)
flow_session = get_object_or_404(FlowSession, id=session_id)
if flow_session.course != api_ctx.course:
raise PermissionDenied(
"session's course does not match auth context")
from course.content import get_course_repo
from course.flow import adjust_flow_session_page_data, assemble_answer_visits
with get_course_repo(api_ctx.course) as repo:
from course.utils import FlowContext, instantiate_flow_page_with_ctx
fctx = FlowContext(repo, api_ctx.course, flow_session.flow_id)
adjust_flow_session_page_data(repo, flow_session, api_ctx.course.identifier,
fctx.flow_desc)
from course.flow import get_all_page_data
all_page_data = get_all_page_data(flow_session)
answer_visits = assemble_answer_visits(flow_session)
pages = []
for i, page_data in enumerate(all_page_data):
page = instantiate_flow_page_with_ctx(fctx, page_data)
assert i == page_data.page_ordinal
page_data_json = dict(
ordinal=i,
page_type=page_data.page_type,
group_id=page_data.group_id,
page_id=page_data.page_id,
page_data=page_data.data,
title=page_data.title,
bookmarked=page_data.bookmarked,
)
answer_json = None
grade_json = None
visit = answer_visits[i]
if visit is not None:
from course.page.base import PageContext
pctx = PageContext(api_ctx.course, repo, fctx.course_commit_sha,
flow_session)
norm_bytes_answer_tup = page.normalized_bytes_answer(
pctx, page_data.data, visit.answer)
# norm_answer needs to be JSON-encodable
norm_answer = None # type: Any
if norm_bytes_answer_tup is not None:
answer_file_ext, norm_bytes_answer = norm_bytes_answer_tup
if answer_file_ext in [".txt", ".py"]:
norm_answer = norm_bytes_answer.decode("utf-8")
elif answer_file_ext == ".json":
import json
norm_answer = json.loads(norm_bytes_answer)
else:
from base64 import b64encode
norm_answer = [answer_file_ext,
b64encode(norm_bytes_answer).decode("utf-8")]
answer_json = dict(
visit_time=visit.visit_time.isoformat(),
remote_address=repr(visit.remote_address),
user=visit.user.username if visit.user is not None else None,
impersonated_by=(visit.impersonated_by.username
if visit.impersonated_by is not None else None),
is_synthetic_visit=visit.is_synthetic,
answer_data=visit.answer,
answer=norm_answer,
)
grade = visit.get_most_recent_grade()
if grade is not None:
grade_json = dict(
grader=(grade.grader.username
if grade.grader is not None else None),
grade_time=grade.grade_time.isoformat(),
graded_at_git_commit_sha=grade.graded_at_git_commit_sha,
max_points=grade.max_points,
correctness=grade.correctness,
feedback=grade.feedback)
pages.append({
"page": page_data_json,
"answer": answer_json,
"grade": grade_json,
})
result = {
"session": flow_session_to_json(flow_session),
"pages": pages,
}
return http.JsonResponse(result, safe=False)
def get_flow_session_content(api_ctx, course_identifier):
# type: (APIContext, Text) -> http.HttpResponse
if not api_ctx.has_permission(pperm.view_gradebook):
raise PermissionDenied("token role does not have required permissions")
try:
session_id_str = api_ctx.request.GET["flow_session_id"]
except KeyError:
raise APIError("must specify flow_id GET parameter")
session_id = int(session_id_str)
flow_session = get_object_or_404(FlowSession, id=session_id)
if flow_session.course != api_ctx.course:
raise PermissionDenied(
"session's course does not match auth context")
from course.content import get_course_repo
from course.flow import adjust_flow_session_page_data, assemble_answer_visits
with get_course_repo(api_ctx.course) as repo:
from course.utils import FlowContext, instantiate_flow_page_with_ctx
fctx = FlowContext(repo, api_ctx.course, flow_session.flow_id)
adjust_flow_session_page_data(repo, flow_session, api_ctx.course.identifier,
fctx.flow_desc)
from course.flow import get_all_page_data
all_page_data = get_all_page_data(flow_session)
answer_visits = assemble_answer_visits(flow_session)
pages = []
for i, page_data in enumerate(all_page_data):
page = instantiate_flow_page_with_ctx(fctx, page_data)
assert i == page_data.page_ordinal
page_data_json = dict(
ordinal=i,
page_type=page_data.page_type,
group_id=page_data.group_id,
page_id=page_data.page_id,
page_data=page_data.data,
title=page_data.title,
bookmarked=page_data.bookmarked,
)
answer_json = None
grade_json = None
visit = answer_visits[i]
if visit is not None:
from course.page.base import PageContext
pctx = PageContext(api_ctx.course, repo, fctx.course_commit_sha,
flow_session)
norm_bytes_answer_tup = page.normalized_bytes_answer(
pctx, page_data.data, visit.answer)
# norm_answer needs to be JSON-encodable
norm_answer = None # type: Any
if norm_bytes_answer_tup is not None:
answer_file_ext, norm_bytes_answer = norm_bytes_answer_tup
if answer_file_ext in [".txt", ".py"]:
norm_answer = norm_bytes_answer.decode("utf-8")
elif answer_file_ext == ".json":
import json
norm_answer = json.loads(norm_bytes_answer)
else:
from base64 import b64encode
norm_answer = [answer_file_ext, b64encode(norm_bytes_answer)]
answer_json = dict(
visit_time=visit.visit_time.isoformat(),
remote_address=repr(visit.remote_address),
user=visit.user.username if visit.user is not None else None,
impersonated_by=(visit.impersonated_by.username
if visit.impersonated_by is not None else None),
is_synthetic_visit=visit.is_synthetic,
answer_data=visit.answer,
answer=norm_answer,
)
grade = visit.get_most_recent_grade()
if grade is not None:
grade_json = dict(
grader=grade.grader,
grade_time=grade.grade_time.isoformat(),
graded_at_git_commit_sha=grade.graded_at_git_commit_sha,
max_points=grade.max_points,
correctness=grade.correctness,
feedback=grade.feedback)
pages.append({
"page": page_data_json,
"answer": answer_json,
"grade": grade_json,
})
result = {
"session": flow_session_to_json(flow_session),
"pages": pages,
}
return http.JsonResponse(result, safe=False)
def gather_grade_info(fctx, flow_session, answer_visits):
"""
:returns: a :class:`GradeInfo`
"""
all_page_data = FlowPageData.objects.filter(flow_session=flow_session, ordinal__isnull=False).order_by("ordinal")
points = 0
provisional_points = 0
max_points = 0
max_reachable_points = 0
fully_correct_count = 0
partially_correct_count = 0
incorrect_count = 0
unknown_count = 0
for i, page_data in enumerate(all_page_data):
page = instantiate_flow_page_with_ctx(fctx, page_data)
assert i == page_data.ordinal
if answer_visits[i] is None:
# This is true in principle, but early code to deal with survey questions
# didn't generate synthetic answer visits for survey questions, so this
# can't actually be enforced.
# assert not page.expects_answer()
continue
if not page.is_answer_gradable():
continue
grade = answer_visits[i].get_most_recent_grade()
assert grade is not None
feedback = get_feedback_for_grade(grade)
max_points += grade.max_points
if feedback is None or feedback.correctness is None:
unknown_count += 1
points = None
continue
max_reachable_points += grade.max_points
page_points = grade.max_points * feedback.correctness
if points is not None:
points += page_points
provisional_points += page_points
if grade.max_points > 0:
if feedback.correctness == 1:
fully_correct_count += 1
elif feedback.correctness == 0:
incorrect_count += 1
else:
partially_correct_count += 1
return GradeInfo(
points=points,
provisional_points=provisional_points,
max_points=max_points,
max_reachable_points=max_reachable_points,
fully_correct_count=fully_correct_count,
partially_correct_count=partially_correct_count,
incorrect_count=incorrect_count,
unknown_count=unknown_count,
)