567 lines
24 KiB
Python
567 lines
24 KiB
Python
# ======== Instructor views =============================================================================
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from collections import defaultdict
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import csv
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import logging
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import os
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import urllib
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from django.conf import settings
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from django.contrib.auth.models import User, Group
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from django.http import HttpResponse
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from django_future.csrf import ensure_csrf_cookie
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from django.views.decorators.cache import cache_control
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from mitxmako.shortcuts import render_to_response
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from django.core.urlresolvers import reverse
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from courseware import grades
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from courseware.access import has_access, get_access_group_name
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from courseware.courses import get_course_with_access
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from django_comment_client.models import Role, FORUM_ROLE_ADMINISTRATOR, FORUM_ROLE_MODERATOR, FORUM_ROLE_COMMUNITY_TA
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from django_comment_client.utils import has_forum_access
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from psychometrics import psychoanalyze
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from student.models import CourseEnrollment
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from xmodule.course_module import CourseDescriptor
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from xmodule.modulestore import Location
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from xmodule.modulestore.django import modulestore
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from xmodule.modulestore.exceptions import InvalidLocationError, ItemNotFoundError, NoPathToItem
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from xmodule.modulestore.search import path_to_location
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import track.views
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from .grading import StaffGrading
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log = logging.getLogger(__name__)
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template_imports = {'urllib': urllib}
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# internal commands for managing forum roles:
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FORUM_ROLE_ADD = 'add'
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FORUM_ROLE_REMOVE = 'remove'
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@ensure_csrf_cookie
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@cache_control(no_cache=True, no_store=True, must_revalidate=True)
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def instructor_dashboard(request, course_id):
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"""Display the instructor dashboard for a course."""
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course = get_course_with_access(request.user, course_id, 'staff')
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instructor_access = has_access(request.user, course, 'instructor') # an instructor can manage staff lists
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forum_admin_access = has_forum_access(request.user, course_id, FORUM_ROLE_ADMINISTRATOR)
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msg = ''
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problems = []
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plots = []
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# the instructor dashboard page is modal: grades, psychometrics, admin
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# keep that state in request.session (defaults to grades mode)
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idash_mode = request.POST.get('idash_mode','')
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if idash_mode:
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request.session['idash_mode'] = idash_mode
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else:
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idash_mode = request.session.get('idash_mode','Grades')
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def escape(s):
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"""escape HTML special characters in string"""
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return str(s).replace('<', '<').replace('>', '>')
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# assemble some course statistics for output to instructor
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datatable = {'header': ['Statistic', 'Value'],
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'title': 'Course Statistics At A Glance',
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}
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data = [['# Enrolled', CourseEnrollment.objects.filter(course_id=course_id).count()]]
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data += compute_course_stats(course).items()
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if request.user.is_staff:
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data.append(['metadata', escape(str(course.metadata))])
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datatable['data'] = data
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def return_csv(fn, datatable):
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response = HttpResponse(mimetype='text/csv')
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response['Content-Disposition'] = 'attachment; filename={0}'.format(fn)
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writer = csv.writer(response, dialect='excel', quotechar='"', quoting=csv.QUOTE_ALL)
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writer.writerow(datatable['header'])
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for datarow in datatable['data']:
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encoded_row = [unicode(s).encode('utf-8') for s in datarow]
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writer.writerow(encoded_row)
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return response
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def get_staff_group(course):
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staffgrp = get_access_group_name(course, 'staff')
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try:
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group = Group.objects.get(name=staffgrp)
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except Group.DoesNotExist:
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group = Group(name=staffgrp) # create the group
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group.save()
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return group
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# process actions from form POST
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action = request.POST.get('action', '')
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if settings.MITX_FEATURES['ENABLE_MANUAL_GIT_RELOAD']:
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if 'GIT pull' in action:
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data_dir = course.metadata['data_dir']
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log.debug('git pull {0}'.format(data_dir))
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gdir = settings.DATA_DIR / data_dir
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if not os.path.exists(gdir):
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msg += "====> ERROR in gitreload - no such directory {0}".format(gdir)
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else:
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cmd = "cd {0}; git reset --hard HEAD; git clean -f -d; git pull origin; chmod g+w course.xml".format(gdir)
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msg += "git pull on {0}:<p>".format(data_dir)
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msg += "<pre>{0}</pre></p>".format(escape(os.popen(cmd).read()))
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track.views.server_track(request, 'git pull {0}'.format(data_dir), {}, page='idashboard')
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if 'Reload course' in action:
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log.debug('reloading {0} ({1})'.format(course_id, course))
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try:
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data_dir = course.metadata['data_dir']
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modulestore().try_load_course(data_dir)
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msg += "<br/><p>Course reloaded from {0}</p>".format(data_dir)
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track.views.server_track(request, 'reload {0}'.format(data_dir), {}, page='idashboard')
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course_errors = modulestore().get_item_errors(course.location)
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msg += '<ul>'
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for cmsg, cerr in course_errors:
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msg += "<li>{0}: <pre>{1}</pre>".format(cmsg,escape(cerr))
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msg += '</ul>'
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except Exception as err:
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msg += '<br/><p>Error: {0}</p>'.format(escape(err))
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if action == 'Dump list of enrolled students':
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log.debug(action)
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datatable = get_student_grade_summary_data(request, course, course_id, get_grades=False)
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datatable['title'] = 'List of students enrolled in {0}'.format(course_id)
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track.views.server_track(request, 'list-students', {}, page='idashboard')
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elif 'Dump Grades' in action:
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log.debug(action)
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datatable = get_student_grade_summary_data(request, course, course_id, get_grades=True)
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datatable['title'] = 'Summary Grades of students enrolled in {0}'.format(course_id)
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track.views.server_track(request, 'dump-grades', {}, page='idashboard')
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elif 'Dump all RAW grades' in action:
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log.debug(action)
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datatable = get_student_grade_summary_data(request, course, course_id, get_grades=True,
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get_raw_scores=True)
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datatable['title'] = 'Raw Grades of students enrolled in {0}'.format(course_id)
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track.views.server_track(request, 'dump-grades-raw', {}, page='idashboard')
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elif 'Download CSV of all student grades' in action:
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track.views.server_track(request, 'dump-grades-csv', {}, page='idashboard')
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return return_csv('grades_{0}.csv'.format(course_id),
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get_student_grade_summary_data(request, course, course_id))
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elif 'Download CSV of all RAW grades' in action:
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track.views.server_track(request, 'dump-grades-csv-raw', {}, page='idashboard')
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return return_csv('grades_{0}_raw.csv'.format(course_id),
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get_student_grade_summary_data(request, course, course_id, get_raw_scores=True))
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elif 'Download CSV of answer distributions' in action:
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track.views.server_track(request, 'dump-answer-dist-csv', {}, page='idashboard')
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return return_csv('answer_dist_{0}.csv'.format(course_id), get_answers_distribution(request, course_id))
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#----------------------------------------
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# Admin
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elif 'List course staff' in action:
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group = get_staff_group(course)
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msg += 'Staff group = {0}'.format(group.name)
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log.debug('staffgrp={0}'.format(group.name))
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uset = group.user_set.all()
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datatable = {'header': ['Username', 'Full name']}
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datatable['data'] = [[x.username, x.profile.name] for x in uset]
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datatable['title'] = 'List of Staff in course {0}'.format(course_id)
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track.views.server_track(request, 'list-staff', {}, page='idashboard')
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elif action == 'Add course staff':
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uname = request.POST['staffuser']
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try:
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user = User.objects.get(username=uname)
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except User.DoesNotExist:
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msg += '<font color="red">Error: unknown username "{0}"</font>'.format(uname)
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user = None
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if user is not None:
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group = get_staff_group(course)
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msg += '<font color="green">Added {0} to staff group = {1}</font>'.format(user, group.name)
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log.debug('staffgrp={0}'.format(group.name))
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user.groups.add(group)
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track.views.server_track(request, 'add-staff {0}'.format(user), {}, page='idashboard')
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elif action == 'Remove course staff':
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uname = request.POST['staffuser']
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try:
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user = User.objects.get(username=uname)
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except User.DoesNotExist:
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msg += '<font color="red">Error: unknown username "{0}"</font>'.format(uname)
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user = None
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if user is not None:
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group = get_staff_group(course)
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msg += '<font color="green">Removed {0} from staff group = {1}</font>'.format(user, group.name)
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log.debug('staffgrp={0}'.format(group.name))
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user.groups.remove(group)
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track.views.server_track(request, 'remove-staff {0}'.format(user), {}, page='idashboard')
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#----------------------------------------
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# forum administration
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elif action == 'List course forum admins':
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rolename = FORUM_ROLE_ADMINISTRATOR
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datatable = {}
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msg += _list_course_forum_members(course_id, rolename, datatable)
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track.views.server_track(request, 'list-{0}'.format(rolename), {}, page='idashboard')
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elif action == 'Remove forum admin':
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uname = request.POST['forumadmin']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_ADMINISTRATOR, FORUM_ROLE_REMOVE)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_REMOVE, uname, FORUM_ROLE_ADMINISTRATOR, course_id),
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{}, page='idashboard')
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elif action == 'Add forum admin':
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uname = request.POST['forumadmin']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_ADMINISTRATOR, FORUM_ROLE_ADD)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_ADD, uname, FORUM_ROLE_ADMINISTRATOR, course_id),
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{}, page='idashboard')
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elif action == 'List course forum moderators':
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rolename = FORUM_ROLE_MODERATOR
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datatable = {}
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msg += _list_course_forum_members(course_id, rolename, datatable)
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track.views.server_track(request, 'list-{0}'.format(rolename), {}, page='idashboard')
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elif action == 'Remove forum moderator':
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uname = request.POST['forummoderator']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_MODERATOR, FORUM_ROLE_REMOVE)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_REMOVE, uname, FORUM_ROLE_MODERATOR, course_id),
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{}, page='idashboard')
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elif action == 'Add forum moderator':
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uname = request.POST['forummoderator']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_MODERATOR, FORUM_ROLE_ADD)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_ADD, uname, FORUM_ROLE_MODERATOR, course_id),
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{}, page='idashboard')
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elif action == 'List course forum community TAs':
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rolename = FORUM_ROLE_COMMUNITY_TA
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datatable = {}
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msg += _list_course_forum_members(course_id, rolename, datatable)
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track.views.server_track(request, 'list-{0}'.format(rolename), {}, page='idashboard')
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elif action == 'Remove forum community TA':
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uname = request.POST['forummoderator']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_COMMUNITY_TA, FORUM_ROLE_REMOVE)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_REMOVE, uname, FORUM_ROLE_COMMUNITY_TA, course_id),
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{}, page='idashboard')
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elif action == 'Add forum community TA':
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uname = request.POST['forummoderator']
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msg += _update_forum_role_membership(uname, course, FORUM_ROLE_COMMUNITY_TA, FORUM_ROLE_ADD)
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track.views.server_track(request, '{0} {1} as {2} for {3}'.format(FORUM_ROLE_ADD, uname, FORUM_ROLE_COMMUNITY_TA, course_id),
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{}, page='idashboard')
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#----------------------------------------
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# psychometrics
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elif action == 'Generate Histogram and IRT Plot':
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problem = request.POST['Problem']
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nmsg, plots = psychoanalyze.generate_plots_for_problem(problem)
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msg += nmsg
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track.views.server_track(request, 'psychometrics {0}'.format(problem), {}, page='idashboard')
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if idash_mode=='Psychometrics':
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problems = psychoanalyze.problems_with_psychometric_data(course_id)
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#----------------------------------------
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# context for rendering
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context = {'course': course,
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'staff_access': True,
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'admin_access': request.user.is_staff,
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'instructor_access': instructor_access,
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'forum_admin_access': forum_admin_access,
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'datatable': datatable,
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'msg': msg,
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'modeflag': {idash_mode: 'selectedmode'},
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'problems': problems, # psychometrics
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'plots': plots, # psychometrics
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'course_errors': modulestore().get_item_errors(course.location),
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'djangopid' : os.getpid(),
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}
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return render_to_response('courseware/instructor_dashboard.html', context)
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def _list_course_forum_members(course_id, rolename, datatable):
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'''
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Fills in datatable with forum membership information, for a given role,
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so that it will be displayed on instructor dashboard.
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course_ID = course's ID string
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rolename = one of "Administrator", "Moderator", "Community TA"
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Returns message status string to append to displayed message, if role is unknown.
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'''
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# make sure datatable is set up properly for display first, before checking for errors
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datatable['header'] = ['Username', 'Full name', 'Roles']
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datatable['title'] = 'List of Forum {0}s in course {1}'.format(rolename, course_id)
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datatable['data'] = [];
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try:
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role = Role.objects.get(name=rolename, course_id=course_id)
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except Role.DoesNotExist:
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return '<font color="red">Error: unknown rolename "{0}"</font>'.format(rolename)
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uset = role.users.all().order_by('username')
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msg = 'Role = {0}'.format(rolename)
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log.debug('role={0}'.format(rolename))
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datatable['data'] = [[x.username, x.profile.name, ', '.join([r.name for r in x.roles.filter(course_id=course_id).order_by('name')])] for x in uset]
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return msg
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def _update_forum_role_membership(uname, course, rolename, add_or_remove):
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'''
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Supports adding a user to a course's forum role
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uname = username string for user
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course = course object
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rolename = one of "Administrator", "Moderator", "Community TA"
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add_or_remove = one of "add" or "remove"
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Returns message status string to append to displayed message, Status is returned if user
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or role is unknown, or if entry already exists when adding, or if entry doesn't exist when removing.
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'''
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# check that username and rolename are valid:
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try:
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user = User.objects.get(username=uname)
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except User.DoesNotExist:
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return '<font color="red">Error: unknown username "{0}"</font>'.format(uname)
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try:
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role = Role.objects.get(name=rolename, course_id=course.id)
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except Role.DoesNotExist:
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return '<font color="red">Error: unknown rolename "{0}"</font>'.format(rolename)
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# check whether role already has the specified user:
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alreadyexists = role.users.filter(username=uname).exists()
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msg = ''
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log.debug('rolename={0}'.format(rolename))
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if add_or_remove == FORUM_ROLE_REMOVE:
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if not alreadyexists:
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msg ='<font color="red">Error: user "{0}" does not have rolename "{1}", cannot remove</font>'.format(uname, rolename)
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else:
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user.roles.remove(role)
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msg = '<font color="green">Removed "{0}" from "{1}" forum role = "{2}"</font>'.format(user, course.id, rolename)
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else:
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if alreadyexists:
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msg = '<font color="red">Error: user "{0}" already has rolename "{1}", cannot add</font>'.format(uname, rolename)
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else:
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if (rolename == FORUM_ROLE_ADMINISTRATOR and not has_access(user, course, 'staff')):
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msg = '<font color="red">Error: user "{0}" should first be added as staff before adding as a forum administrator, cannot add</font>'.format(uname)
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else:
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user.roles.add(role)
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msg = '<font color="green">Added "{0}" to "{1}" forum role = "{2}"</font>'.format(user, course.id, rolename)
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return msg
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def get_student_grade_summary_data(request, course, course_id, get_grades=True, get_raw_scores=False):
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'''
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Return data arrays with student identity and grades for specified course.
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course = CourseDescriptor
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course_id = course ID
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Note: both are passed in, only because instructor_dashboard already has them already.
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returns datatable = dict(header=header, data=data)
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where
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header = list of strings labeling the data fields
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data = list (one per student) of lists of data corresponding to the fields
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If get_raw_scores=True, then instead of grade summaries, the raw grades for all graded modules are returned.
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'''
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enrolled_students = User.objects.filter(courseenrollment__course_id=course_id).prefetch_related("groups").order_by('username')
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header = ['ID', 'Username', 'Full Name', 'edX email', 'External email']
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if get_grades and enrolled_students.count() > 0:
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# just to construct the header
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gradeset = grades.grade(enrolled_students[0], request, course, keep_raw_scores=get_raw_scores)
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# log.debug('student {0} gradeset {1}'.format(enrolled_students[0], gradeset))
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if get_raw_scores:
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header += [score.section for score in gradeset['raw_scores']]
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else:
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header += [x['label'] for x in gradeset['section_breakdown']]
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datatable = {'header': header}
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data = []
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for student in enrolled_students:
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datarow = [ student.id, student.username, student.profile.name, student.email ]
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try:
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datarow.append(student.externalauthmap.external_email)
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except: # ExternalAuthMap.DoesNotExist
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datarow.append('')
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if get_grades:
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gradeset = grades.grade(student, request, course, keep_raw_scores=get_raw_scores)
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# log.debug('student={0}, gradeset={1}'.format(student,gradeset))
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if get_raw_scores:
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datarow += [score.earned for score in gradeset['raw_scores']]
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else:
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datarow += [x['percent'] for x in gradeset['section_breakdown']]
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data.append(datarow)
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datatable['data'] = data
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return datatable
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@cache_control(no_cache=True, no_store=True, must_revalidate=True)
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def staff_grading(request, course_id):
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"""
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|
Show the instructor grading interface.
|
|
"""
|
|
course = get_course_with_access(request.user, course_id, 'staff')
|
|
|
|
grading = StaffGrading(course)
|
|
|
|
ajax_url = reverse('staff_grading', kwargs={'course_id': course_id})
|
|
if not ajax_url.endswith('/'):
|
|
ajax_url += '/'
|
|
|
|
return render_to_response('instructor/staff_grading.html', {
|
|
'view_html': grading.get_html(),
|
|
'course': course,
|
|
'course_id': course_id,
|
|
'ajax_url': ajax_url,
|
|
# Checked above
|
|
'staff_access': True, })
|
|
|
|
|
|
@cache_control(no_cache=True, no_store=True, must_revalidate=True)
|
|
def gradebook(request, course_id):
|
|
"""
|
|
Show the gradebook for this course:
|
|
- only displayed to course staff
|
|
- shows students who are enrolled.
|
|
"""
|
|
course = get_course_with_access(request.user, course_id, 'staff')
|
|
|
|
enrolled_students = User.objects.filter(courseenrollment__course_id=course_id).order_by('username').select_related("profile")
|
|
|
|
# TODO (vshnayder): implement pagination.
|
|
enrolled_students = enrolled_students[:1000] # HACK!
|
|
|
|
student_info = [{'username': student.username,
|
|
'id': student.id,
|
|
'email': student.email,
|
|
'grade_summary': grades.grade(student, request, course),
|
|
'realname': student.profile.name,
|
|
}
|
|
for student in enrolled_students]
|
|
|
|
return render_to_response('courseware/gradebook.html', {'students': student_info,
|
|
'course': course,
|
|
'course_id': course_id,
|
|
# Checked above
|
|
'staff_access': True, })
|
|
|
|
|
|
@cache_control(no_cache=True, no_store=True, must_revalidate=True)
|
|
def grade_summary(request, course_id):
|
|
"""Display the grade summary for a course."""
|
|
course = get_course_with_access(request.user, course_id, 'staff')
|
|
|
|
# For now, just a static page
|
|
context = {'course': course,
|
|
'staff_access': True, }
|
|
return render_to_response('courseware/grade_summary.html', context)
|
|
|
|
|
|
@ensure_csrf_cookie
|
|
@cache_control(no_cache=True, no_store=True, must_revalidate=True)
|
|
def enroll_students(request, course_id):
|
|
"""Allows a staff member to enroll students in a course.
|
|
|
|
This is a short-term hack for Berkeley courses launching fall
|
|
2012. In the long term, we would like functionality like this, but
|
|
we would like both the instructor and the student to agree. Right
|
|
now, this allows any instructor to add students to their course,
|
|
which we do not want.
|
|
|
|
It is poorly written and poorly tested, but it's designed to be
|
|
stripped out.
|
|
"""
|
|
|
|
course = get_course_with_access(request.user, course_id, 'staff')
|
|
existing_students = [ce.user.email for ce in CourseEnrollment.objects.filter(course_id=course_id)]
|
|
|
|
if 'new_students' in request.POST:
|
|
new_students = request.POST['new_students'].split('\n')
|
|
else:
|
|
new_students = []
|
|
new_students = [s.strip() for s in new_students]
|
|
|
|
added_students = []
|
|
rejected_students = []
|
|
|
|
for student in new_students:
|
|
try:
|
|
nce = CourseEnrollment(user=User.objects.get(email=student), course_id=course_id)
|
|
nce.save()
|
|
added_students.append(student)
|
|
except:
|
|
rejected_students.append(student)
|
|
|
|
return render_to_response("enroll_students.html", {'course': course_id,
|
|
'existing_students': existing_students,
|
|
'added_students': added_students,
|
|
'rejected_students': rejected_students,
|
|
'debug': new_students})
|
|
|
|
|
|
def get_answers_distribution(request, course_id):
|
|
"""
|
|
Get the distribution of answers for all graded problems in the course.
|
|
|
|
Return a dict with two keys:
|
|
'header': a header row
|
|
'data': a list of rows
|
|
"""
|
|
course = get_course_with_access(request.user, course_id, 'staff')
|
|
|
|
dist = grades.answer_distributions(request, course)
|
|
|
|
d = {}
|
|
d['header'] = ['url_name', 'display name', 'answer id', 'answer', 'count']
|
|
|
|
d['data'] = [[url_name, display_name, answer_id, a, answers[a]]
|
|
for (url_name, display_name, answer_id), answers in dist.items()
|
|
for a in answers]
|
|
return d
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
def compute_course_stats(course):
|
|
'''
|
|
Compute course statistics, including number of problems, videos, html.
|
|
|
|
course is a CourseDescriptor from the xmodule system.
|
|
'''
|
|
|
|
# walk the course by using get_children() until we come to the leaves; count the
|
|
# number of different leaf types
|
|
|
|
counts = defaultdict(int)
|
|
|
|
def walk(module):
|
|
children = module.get_children()
|
|
category = module.__class__.__name__ # HtmlDescriptor, CapaDescriptor, ...
|
|
counts[category] += 1
|
|
for c in children:
|
|
walk(c)
|
|
|
|
walk(course)
|
|
stats = dict(counts) # number of each kind of module
|
|
return stats
|