# -*- coding: utf-8 -*- from __future__ import division __copyright__ = "Copyright (C) 2014 Andreas Kloeckner" __license__ = """ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ from django.utils.translation import ugettext as _ from django.shortcuts import ( # noqa get_object_or_404, redirect) from relate.utils import retry_transaction_decorator from django.core.exceptions import ( # noqa PermissionDenied, SuspiciousOperation, ObjectDoesNotExist) from django import http from course.models import ( FlowSession, FlowPageVisitGrade, get_flow_grading_opportunity, get_feedback_for_grade, update_bulk_feedback) from course.constants import participation_role from course.utils import ( course_view, render_course_page, get_session_grading_rule, FlowPageContext) from course.views import get_now_or_fake_time from django.conf import settings from django.utils import translation # {{{ grading driver @course_view @retry_transaction_decorator() def grade_flow_page(pctx, flow_session_id, page_ordinal): page_ordinal = int(page_ordinal) if pctx.role not in [ participation_role.instructor, participation_role.teaching_assistant]: raise PermissionDenied( _("must be instructor or TA to view grades")) flow_session = get_object_or_404(FlowSession, id=int(flow_session_id)) if flow_session.course.pk != pctx.course.pk: raise SuspiciousOperation( _("Flow session not part of specified course")) if flow_session.participation is None: raise SuspiciousOperation( _("Cannot grade anonymous session")) fpctx = FlowPageContext(pctx.repo, pctx.course, flow_session.flow_id, page_ordinal, participation=flow_session.participation, flow_session=flow_session, request=pctx.request) if fpctx.page_desc is None: raise http.Http404() # {{{ enable flow session zapping all_flow_sessions = list(FlowSession.objects .filter( course=pctx.course, flow_id=flow_session.flow_id, participation__isnull=False, in_progress=flow_session.in_progress) .order_by( "participation__user__last_name", "start_time")) next_flow_session_id = None prev_flow_session_id = None for i, other_flow_session in enumerate(all_flow_sessions): if other_flow_session.pk == flow_session.pk: if i > 0: prev_flow_session_id = all_flow_sessions[i-1].id if i + 1 < len(all_flow_sessions): next_flow_session_id = all_flow_sessions[i+1].id # }}} # {{{ reproduce student view form = None feedback = None answer_data = None grade_data = None most_recent_grade = None 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 from course.page.base import PageBehavior page_behavior = PageBehavior( show_correctness=True, show_answer=False, may_change_answer=False) form = fpctx.page.make_form( fpctx.page_context, fpctx.page_data.data, answer_data, page_behavior) if form is not None: form_html = fpctx.page.form_to_html( pctx.request, fpctx.page_context, form, answer_data) else: form_html = None # }}} # {{{ grading form if (fpctx.page.expects_answer() and fpctx.page.is_answer_gradable() and fpctx.prev_answer_visit is not None and not flow_session.in_progress): request = pctx.request if pctx.request.method == "POST": grading_form = fpctx.page.post_grading_form( fpctx.page_context, fpctx.page_data, grade_data, request.POST, request.FILES) if grading_form.is_valid(): grade_data = fpctx.page.update_grade_data_from_grading_form( fpctx.page_context, fpctx.page_data, grade_data, grading_form, request.FILES) with translation.override(settings.RELATE_ADMIN_EMAIL_LOCALE): feedback = fpctx.page.grade( fpctx.page_context, fpctx.page_data, answer_data, grade_data) if feedback is not None: correctness = feedback.correctness else: correctness = None if feedback is not None: feedback_json, bulk_feedback_json = feedback.as_json() else: feedback_json = bulk_feedback_json = None most_recent_grade = FlowPageVisitGrade( visit=fpctx.prev_answer_visit, grader=pctx.request.user, graded_at_git_commit_sha=pctx.course_commit_sha, grade_data=grade_data, max_points=fpctx.page.max_points(fpctx.page_data), correctness=correctness, feedback=feedback_json) most_recent_grade.save() update_bulk_feedback( fpctx.prev_answer_visit.page_data, most_recent_grade, bulk_feedback_json) grading_rule = get_session_grading_rule( flow_session, flow_session.participation.role, fpctx.flow_desc, get_now_or_fake_time(request)) from course.flow import grade_flow_session grade_flow_session(fpctx, flow_session, grading_rule) else: grading_form = fpctx.page.make_grading_form( fpctx.page_context, fpctx.page_data, grade_data) else: grading_form = None if grading_form is not None: from crispy_forms.layout import Submit grading_form.helper.form_class += " relate-grading-form" grading_form.helper.add_input( Submit( "submit", _("Submit"), accesskey="s", css_class="relate-grading-save-button")) grading_form_html = fpctx.page.grading_form_to_html( pctx.request, fpctx.page_context, grading_form, grade_data) else: grading_form_html = None # }}} # {{{ compute points_awarded max_points = None human_feedback_point_value = None points_awarded = None if (fpctx.page.expects_answer() and fpctx.page.is_answer_gradable()): max_points = fpctx.page.max_points(fpctx.page_data) human_feedback_point_value = fpctx.page.human_feedback_point_value( fpctx.page_context, fpctx.page_data) if feedback is not None and feedback.correctness is not None: points_awarded = max_points * feedback.correctness # }}} grading_rule = get_session_grading_rule( flow_session, flow_session.participation.role, fpctx.flow_desc, get_now_or_fake_time(pctx.request)) if grading_rule.grade_identifier is not None: grading_opportunity = get_flow_grading_opportunity( pctx.course, flow_session.flow_id, fpctx.flow_desc, grading_rule) else: grading_opportunity = None return render_course_page( pctx, "course/grade-flow-page.html", { "flow_identifier": fpctx.flow_id, "flow_session": flow_session, "flow_desc": fpctx.flow_desc, "ordinal": fpctx.ordinal, "page_data": fpctx.page_data, "body": fpctx.page.body( fpctx.page_context, fpctx.page_data.data), "form": form, "form_html": form_html, "feedback": feedback, "human_feedback_point_value": human_feedback_point_value, "max_points": max_points, "points_awarded": points_awarded, "most_recent_grade": most_recent_grade, "grading_opportunity": grading_opportunity, "prev_flow_session_id": prev_flow_session_id, "next_flow_session_id": next_flow_session_id, "grading_form": grading_form, "grading_form_html": grading_form_html, "correct_answer": fpctx.page.correct_answer( fpctx.page_context, fpctx.page_data.data, answer_data, grade_data), }) # }}} # {{{ grading statistics @course_view def show_grading_statistics(pctx, flow_id): if pctx.role not in [ participation_role.instructor, participation_role.teaching_assistant]: raise PermissionDenied( _("must be instructor or TA to view grading stats")) grades = (FlowPageVisitGrade.objects .filter( visit__flow_session__course=pctx.course, visit__flow_session__flow_id=flow_id, # There are just way too many autograder grades, which makes this # report super slow. grader__isnull=False) .order_by( "visit__id", "grade_time") .select_related("visit") .select_related("grader") .select_related("visit__page_data")) graders = set() # tuples: (ordinal, id) pages = set() counts = {} grader_counts = {} page_counts = {} def commit_grade_info(grade): grader = grade.grader page = (grade.visit.page_data.ordinal, grade.visit.page_data.group_id + "/" + grade.visit.page_data.page_id) graders.add(grader) pages.add(page) key = (page, grade.grader) counts[key] = counts.get(key, 0) + 1 grader_counts[grader] = grader_counts.get(grader, 0) + 1 page_counts[page] = page_counts.get(page, 0) + 1 last_grade = None for grade in grades.iterator(): if last_grade is not None and last_grade.visit != grade.visit: commit_grade_info(last_grade) last_grade = grade if last_grade is not None: commit_grade_info(last_grade) graders = sorted(graders, key=lambda grader: grader.last_name if grader is not None else None) pages = sorted(pages) stats_table = [ [ counts.get((page, grader), 0) for grader in graders ] for page in pages ] page_counts = [ page_counts.get(page, 0) for page in pages ] grader_counts = [ grader_counts.get(grader, 0) for grader in graders ] return render_course_page( pctx, "course/grading-statistics.html", { "flow_id": flow_id, "pages": pages, "graders": graders, "pages_stats_counts": zip(pages, stats_table, page_counts), "grader_counts": grader_counts, }) # }}} # vim: foldmethod=marker