Implement coach interactions with student grades

Story #4: Coaches sees grades.

Story #9: Coach downloads grades.

lms/djangoapps/pocs/tests/test_views.py

@@ -4,14 +4,18 @@
 import pytz
 from mock import patch
 
+from capa.tests.response_xml_factory import StringResponseXMLFactory
+from courseware.tests.factories import StudentModuleFactory
 from courseware.tests.helpers import LoginEnrollmentTestCase
 from django.core.urlresolvers import reverse
 from edxmako.shortcuts import render_to_response
 from student.roles import CoursePocCoachRole
 from student.tests.factories import (
     AdminFactory,
     CourseEnrollmentFactory,
+    UserFactory,
 )
+
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.tests.factories import (
     CourseFactory,
@@ -295,6 +299,86 @@ def test_unenroll_non_user_student(self):
             ).exists()
         )
 
+USER_COUNT = 2
+
+class TestPocGrades(ModuleStoreTestCase, LoginEnrollmentTestCase):
+    """
+    Tests for Personal Online Courses views.
+    """
+    def setUp(self):
+        """
+        Set up tests
+        """
+        self.course = course = CourseFactory.create()
+
+        # Create instructor account
+        self.coach = coach = AdminFactory.create()
+        self.client.login(username=coach.username, password="test")
+
+        # Create a course outline
+        self.mooc_start = start = datetime.datetime(
+            2010, 5, 12, 2, 42, tzinfo=pytz.UTC)
+        chapter = ItemFactory.create(
+            start=start, parent=course, category='sequential')
+        section = ItemFactory.create(
+            parent=chapter,
+            category="sequential",
+            metadata={'graded': True, 'format': 'Homework'}
+        )
+
+        role = CoursePocCoachRole(self.course.id)
+        role.add_users(coach)
+        self.poc = poc = PocFactory(course_id=self.course.id, coach=self.coach)
+
+        self.users = [UserFactory.create() for _ in xrange(USER_COUNT)]
+        for user in self.users:
+            CourseEnrollmentFactory.create(user=user, course_id=self.course.id)
+            PocMembershipFactory(poc=poc, student=user, active=True)
+
+        for i in xrange(USER_COUNT - 1):
+            category = "problem"
+            item = ItemFactory.create(
+                parent_location=section.location,
+                category=category,
+                data=StringResponseXMLFactory().build_xml(answer='foo'),
+                metadata={'rerandomize': 'always'}
+            )
+
+            for j, user in enumerate(self.users):
+                StudentModuleFactory.create(
+                    grade=1 if i < j else 0,
+                    max_grade=1,
+                    student=user,
+                    course_id=self.course.id,
+                    module_state_key=item.location
+                )
+
+
+    @patch('pocs.views.render_to_response', intercept_renderer)
+    def test_gradebook(self):
+        url = reverse(
+            'poc_gradebook',
+            kwargs={'course_id': self.course.id.to_deprecated_string()}
+        )
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+        student_info = response.mako_context['students']
+        self.assertEqual(len(student_info), USER_COUNT)
+        self.assertEqual(student_info[0]['grade_summary']['percent'], 0.0)
+        self.assertEqual(student_info[1]['grade_summary']['percent'], 0.02)
+        self.assertEqual(
+            student_info[1]['grade_summary']['grade_breakdown'][0]['percent'],
+            0.015)
+
+    def test_grades_csv(self):
+        url = reverse(
+            'poc_grades_csv',
+            kwargs={'course_id': self.course.id.to_deprecated_string()}
+        )
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(
+            len(response.content.strip().split('\n')), USER_COUNT + 1)
 
 
 def flatten(seq):

lms/djangoapps/pocs/views.py

@@ -1,9 +1,12 @@
+import csv
 import datetime
 import functools
 import json
 import logging
 import pytz
 
+from cStringIO import StringIO
+
 from django.core.urlresolvers import reverse
 from django.http import HttpResponse, HttpResponseForbidden
 from django.core.exceptions import ValidationError
@@ -16,10 +19,12 @@
 
 from courseware.courses import get_course_by_id
 from courseware.field_overrides import disable_overrides
+from courseware.grades import iterate_grades_for
 from edxmako.shortcuts import render_to_response
 from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from student.roles import CoursePocCoachRole
 
+from instructor.offline_gradecalc import student_grades
 from instructor.views.api import _split_input_list
 from instructor.views.tools import get_student_from_identifier
 
@@ -68,6 +73,10 @@ def dashboard(request, course):
         'schedule': json.dumps(schedule, indent=4),
         'save_url': reverse('save_poc', kwargs={'course_id': course.id}),
         'poc_members': PocMembership.objects.filter(poc=poc),
+        'gradebook_url': reverse('poc_gradebook',
+                                 kwargs={'course_id': course.id}),
+        'grades_csv_url': reverse('poc_grades_csv',
+                                 kwargs={'course_id': course.id}),
     }
     if not poc:
         context['create_poc_url'] = reverse(
@@ -242,3 +251,77 @@ def poc_invite(request, course):
             pass  # maybe log this?
     url = reverse('poc_coach_dashboard', kwargs={'course_id': course.id})
     return redirect(url)
+
+
+@cache_control(no_cache=True, no_store=True, must_revalidate=True)
+@coach_dashboard
+def poc_gradebook(request, course):
+    """
+    Show the gradebook for this POC.
+    """
+    poc = get_poc_for_coach(course, request.user)
+    enrolled_students = User.objects.filter(
+        pocmembership__poc=poc,
+        pocmembership__active=1
+    ).order_by('username').select_related("profile")
+
+    student_info = [
+        {
+            'username': student.username,
+            'id': student.id,
+            'email': student.email,
+            'grade_summary': student_grades(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,
+        'staff_access': request.user.is_staff,
+        'ordered_grades': sorted(
+            course.grade_cutoffs.items(), key=lambda i: i[1], reverse=True),
+    })
+
+
+@cache_control(no_cache=True, no_store=True, must_revalidate=True)
+@coach_dashboard
+def poc_grades_csv(request, course):
+    poc = get_poc_for_coach(course, request.user)
+    enrolled_students = User.objects.filter(
+        pocmembership__poc=poc,
+        pocmembership__active=1
+    ).order_by('username').select_related("profile")
+    grades = iterate_grades_for(course.id, enrolled_students)
+
+    header = None
+    rows = []
+    for student, gradeset, err_msg in grades:
+        if gradeset:
+            # We were able to successfully grade this student for this course.
+            if not header:
+                # Encode the header row in utf-8 encoding in case there are
+                # unicode characters
+                header = [section['label'].encode('utf-8')
+                          for section in gradeset[u'section_breakdown']]
+                rows.append(["id", "email", "username", "grade"] + header)
+
+            percents = {
+                section['label']: section.get('percent', 0.0)
+                for section in gradeset[u'section_breakdown']
+                if 'label' in section
+            }
+
+            row_percents = [percents.get(label, 0.0) for label in header]
+            rows.append([student.id, student.email, student.username,
+                         gradeset['percent']] + row_percents)
+
+    buffer = StringIO()
+    writer = csv.writer(buffer)
+    for row in rows:
+        writer.writerow(row)
+
+    return HttpResponse(buffer.getvalue(), content_type='text/csv')
+

lms/templates/pocs/coach_dashboard.html

@@ -39,13 +39,19 @@ <h1>${_("POC Coach Dashboard")}</h1>
         <li class="nav-item">
           <a href="#" data-section="schedule">${_("Schedule")}</a>
         </li>
+        <li class="nav-item">
+          <a href="#" data-section="student_admin">${_("Student Admin")}</a>
+        </li>
       </ul>
       <section id="membership" class="idash-section">
         <%include file="enrollment.html" args="" />
       </section>
       <section id="schedule" class="idash-section">
         <%include file="schedule.html" args="" />
       </section>
+      <section id="student_admin" class="idash-section">
+        <%include file="student_admin.html" args="" />
+      </section>
       %endif
 
     </section>

lms/templates/pocs/student_admin.html

@@ -0,0 +1,11 @@
+<%! from django.utils.translation import ugettext as _ %>
+
+<section>
+  <h2>${_('Student Grades')}</h2>
+  <p>
+    <a href="${gradebook_url}">${_('View gradebook')}</a>
+  </p>
+  <p>
+    <a href="${grades_csv_url}">${_('Download student grades')}</a>
+  </p>
+</section>

lms/urls.py

@@ -351,6 +351,10 @@
             'pocs.views.save_poc', name='save_poc'),
         url(r'^courses/{}/poc_invite$'.format(settings.COURSE_ID_PATTERN),
             'pocs.views.poc_invite', name='poc_invite'),
+        url(r'^courses/{}/poc_gradebook$'.format(settings.COURSE_ID_PATTERN),
+            'pocs.views.poc_gradebook', name='poc_gradebook'),
+        url(r'^courses/{}/poc_grades.csv$'.format(settings.COURSE_ID_PATTERN),
+            'pocs.views.poc_grades_csv', name='poc_grades_csv'),
 
         url(r'^courses/{}/set_course_mode_price$'.format(settings.COURSE_ID_PATTERN),
             'instructor.views.instructor_dashboard.set_course_mode_price', name="set_course_mode_price"),