Added ccx enable/disable flag to advance settings and show hide ccx coach option on lms

cms/djangoapps/models/settings/course_metadata.py

@@ -83,6 +83,10 @@ class CourseMetadata(object):
         if not settings.FEATURES.get('ENABLE_VIDEO_BUMPER'):
             filtered_list.append('video_bumper')
 
+        # Do not show enable_ccx if feature is not enabled.
+        if not settings.FEATURES.get('CUSTOM_COURSES_EDX'):
+            filtered_list.append('enable_ccx')
+
         return filtered_list
 
     @classmethod

common/lib/xmodule/xmodule/course_module.py

@@ -386,6 +386,21 @@ class CourseFields(object):
         ),
         scope=Scope.settings
     )
+    enable_ccx = Boolean(
+        # Translators: Custom Courses for edX (CCX) is an edX feature for re-using course content. CCX Coach is
+        # a role created by a course Instructor to enable a person (the "Coach") to manage the custom course for
+        # his students.
+        display_name=_("Enable CCX"),
+        # Translators: Custom Courses for edX (CCX) is an edX feature for re-using course content. CCX Coach is
+        # a role created by a course Instructor to enable a person (the "Coach") to manage the custom course for
+        # his students.
+        help=_(
+            "Allow course instructors to assign CCX Coach roles, and allow coaches to manage Custom Courses on edX."
+            " When false, Custom Courses cannot be created, but existing Custom Courses will be preserved."
+        ),
+        default=False,
+        scope=Scope.settings
+    )
     allow_anonymous = Boolean(
         display_name=_("Allow Anonymous Discussion Posts"),
         help=_("Enter true or false. If true, students can create discussion posts that are anonymous to all users."),

common/lib/xmodule/xmodule/tabs.py

@@ -758,7 +758,7 @@ class CcxCoachTab(CourseTab):
         the user is one.
         """
         user_is_coach = False
-        if settings.FEATURES.get('CUSTOM_COURSES_EDX', False):
+        if settings.FEATURES.get('CUSTOM_COURSES_EDX', False) and course.enable_ccx:
             from opaque_keys.edx.locations import SlashSeparatedCourseKey
             from student.roles import CourseCcxCoachRole  # pylint: disable=import-error
             from ccx.overrides import get_current_request  # pylint: disable=import-error

lms/djangoapps/ccx/tests/test_views.py

@@ -5,7 +5,9 @@ import datetime
 import json
 import re
 import pytz
-from mock import patch
+import ddt
+import unittest
+from mock import patch, MagicMock
 from nose.plugins.attrib import attr
 
 from capa.tests.response_xml_factory import StringResponseXMLFactory
@@ -14,6 +16,7 @@ from courseware.tests.factories import StudentModuleFactory  # pylint: disable=i
 from courseware.tests.helpers import LoginEnrollmentTestCase  # pylint: disable=import-error
 from django.core.urlresolvers import reverse
 from django.test.utils import override_settings
+from django.test import RequestFactory
 from edxmako.shortcuts import render_to_response  # pylint: disable=import-error
 from student.roles import CourseCcxCoachRole  # pylint: disable=import-error
 from student.tests.factories import (  # pylint: disable=import-error
@@ -22,12 +25,14 @@ from student.tests.factories import (  # pylint: disable=import-error
     UserFactory,
 )
 
+from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from xmodule.x_module import XModuleMixin
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.tests.factories import (
     CourseFactory,
     ItemFactory,
 )
+import xmodule.tabs as tabs
 from ..models import (
     CustomCourseForEdX,
     CcxMembership,
@@ -56,6 +61,17 @@ def intercept_renderer(path, context):
     return response
 
 
+def ccx_dummy_request():
+    """
+    Returns dummy request object for CCX coach tab test
+    """
+    factory = RequestFactory()
+    request = factory.get('ccx_coach_dashboard')
+    request.user = MagicMock()
+
+    return request
+
+
 @attr('shard_1')
 class TestCoachDashboard(ModuleStoreTestCase, LoginEnrollmentTestCase):
     """
@@ -756,6 +772,48 @@ class TestSwitchActiveCCX(ModuleStoreTestCase, LoginEnrollmentTestCase):
         self.verify_active_ccx(self.client)
 
 
+@ddt.ddt
+class CCXCoachTabTestCase(unittest.TestCase):
+    """
+    Test case for CCX coach tab.
+    """
+    def setUp(self):
+        super(CCXCoachTabTestCase, self).setUp()
+        self.course = MagicMock()
+        self.course.id = SlashSeparatedCourseKey('edX', 'toy', '2012_Fall')
+        self.settings = MagicMock()
+        self.settings.FEATURES = {}
+
+    def check_ccx_tab(self):
+        """Helper function for verifying the ccx tab."""
+        tab = tabs.CcxCoachTab({'type': tabs.CcxCoachTab.type, 'name': 'CCX Coach'})
+        return tab
+
+    @ddt.data(
+        (True, True, True),
+        (True, False, False),
+        (False, True, False),
+        (False, False, False),
+        (True, None, False)
+    )
+    @patch('ccx.overrides.get_current_request', ccx_dummy_request)
+    @ddt.unpack
+    def test_coach_tab_for_ccx_advance_settings(self, ccx_feature_flag, enable_ccx, expected_result):
+        """
+        Test ccx coach tab state (visible or hidden) depending on the value of enable_ccx flag, ccx feature flag.
+        """
+        tab = self.check_ccx_tab()
+        self.settings.FEATURES = {'CUSTOM_COURSES_EDX': ccx_feature_flag}
+
+        self.course.enable_ccx = enable_ccx
+        self.assertEquals(
+            expected_result,
+            tab.can_display(
+                self.course, self.settings, is_user_authenticated=True, is_user_staff=False, is_user_enrolled=True
+            )
+        )
+
+
 def flatten(seq):
     """
     For [[1, 2], [3, 4]] returns [1, 2, 3, 4].  Does not recurse.

lms/djangoapps/instructor/tests/views/test_instructor_dashboard.py

 """
 Unit tests for instructor_dashboard.py.
 """
+import ddt
 from mock import patch
 
 from django.conf import settings
@@ -16,6 +17,7 @@ from course_modes.models import CourseMode
 from student.roles import CourseFinanceAdminRole
 
 
+@ddt.ddt
 class TestInstructorDashboard(ModuleStoreTestCase, LoginEnrollmentTestCase):
     """
     Tests for the instructor dashboard (not legacy).
@@ -179,3 +181,29 @@ class TestInstructorDashboard(ModuleStoreTestCase, LoginEnrollmentTestCase):
         total_amount = single_purchase_total + bulk_purchase_total
         response = self.client.get(self.url)
         self.assertIn('{currency}{amount}'.format(currency='$', amount=total_amount), response.content)
+
+    @ddt.data(
+        (True, True, True),
+        (True, False, False),
+        (True, None, False),
+        (False, True, False),
+        (False, False, False),
+        (False, None, False),
+    )
+    @ddt.unpack
+    def test_ccx_coaches_option_on_admin_list_management_instructor(
+            self, ccx_feature_flag, enable_ccx, expected_result
+    ):
+        """
+        Test whether the "CCX Coaches" option is visible or hidden depending on the value of course.enable_ccx.
+        """
+        with patch.dict(settings.FEATURES, {'CUSTOM_COURSES_EDX': ccx_feature_flag}):
+            self.course.enable_ccx = enable_ccx
+            self.store.update_item(self.course, self.instructor.id)
+
+            response = self.client.get(self.url)
+
+            self.assertEquals(
+                expected_result,
+                'CCX Coaches are able to create their own Custom Courses based on this course' in response.content
+            )

lms/djangoapps/instructor/views/instructor_dashboard.py

@@ -324,10 +324,12 @@ def _section_course_info(course, access):
 def _section_membership(course, access):
     """ Provide data for the corresponding dashboard section """
     course_key = course.id
+    ccx_enabled = settings.FEATURES.get('CUSTOM_COURSES_EDX', False) and course.enable_ccx
     section_data = {
         'section_key': 'membership',
         'section_display_name': _('Membership'),
         'access': access,
+        'ccx_is_enabled': ccx_enabled,
         'enroll_button_url': reverse('students_update_enrollment', kwargs={'course_id': unicode(course_key)}),
         'unenroll_button_url': reverse('students_update_enrollment', kwargs={'course_id': unicode(course_key)}),
         'upload_student_csv_button_url': reverse('register_and_enroll_students', kwargs={'course_id': unicode(course_key)}),

lms/templates/instructor/instructor_dashboard_2/membership.html

@@ -243,8 +243,8 @@
       data-add-button-label="${_("Add Community TA")}"
     ></div>
   %endif
-  
-  %if section_data['access']['instructor'] and settings.FEATURES.get('CUSTOM_COURSES_EDX', False):
+
+  %if section_data['access']['instructor'] and section_data['ccx_is_enabled']:
     <div class="auth-list-container"
       data-rolename="ccx_coach"
       data-display-name="${_("CCX Coaches")}"