Provide more context to calls to Segment.

Implementation for DE-1089.

Centralize the definition of context into a single method.  This is in
common/djangoapps/track because the context is originally set there by
middleware.

lms/djangoapps/courseware/field_overrides.py

@@ -102,8 +102,9 @@ class FieldOverrideProvider(object):
     """
     __metaclass__ = ABCMeta
 
-    def __init__(self, user):
+    def __init__(self, user, fallback_field_data):
         self.user = user
+        self.fallback_field_data = fallback_field_data
 
     @abstractmethod
     def get(self, block, name, default):  # pragma no cover
@@ -196,7 +197,7 @@ class OverrideFieldData(FieldData):
 
     def __init__(self, user, fallback, providers):
         self.fallback = fallback
-        self.providers = tuple(provider(user) for provider in providers)
+        self.providers = tuple(provider(user, fallback) for provider in providers)
 
     def get_override(self, block, name):
         """

lms/djangoapps/courseware/tests/test_views.py

@@ -2191,9 +2191,9 @@ class GenerateUserCertTests(ModuleStoreTestCase):
     def test_user_with_passing_grade(self, mock_is_course_passed):
         # If user has above passing grading then json will return cert generating message and
         # status valid code
-        # mocking xqueue and analytics
+        # mocking xqueue and Segment analytics
 
-        analytics_patcher = patch('courseware.views.views.analytics')
+        analytics_patcher = patch('courseware.views.views.segment')
         mock_tracker = analytics_patcher.start()
         self.addCleanup(analytics_patcher.stop)
 
@@ -2211,11 +2211,6 @@ class GenerateUserCertTests(ModuleStoreTestCase):
                     'category': 'certificates',
                     'label': unicode(self.course.id)
                 },
-
-                context={
-                    'ip': '127.0.0.1',
-                    'Google Analytics': {'clientId': None}
-                }
             )
             mock_tracker.reset_mock()
 

lms/djangoapps/courseware/views/views.py

@@ -7,7 +7,6 @@ import urllib
 from collections import OrderedDict, namedtuple
 from datetime import datetime
 
-import analytics
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.models import AnonymousUser, User
@@ -98,6 +97,7 @@ from openedx.features.enterprise_support.api import data_sharing_consent_require
 from openedx.features.journals.api import get_journals_context
 from shoppingcart.utils import is_shopping_cart_enabled
 from student.models import CourseEnrollment, UserTestGroup
+from track import segment
 from util.cache import cache, cache_if_anonymous
 from util.db import outer_atomic
 from util.milestones_helpers import get_prerequisite_courses_display
@@ -1429,24 +1429,11 @@ def _track_successful_certificate_generation(user_id, course_id):
         None
 
     """
-    if settings.LMS_SEGMENT_KEY:
-        event_name = 'edx.bi.user.certificate.generate'
-        tracking_context = tracker.get_tracker().resolve_context()
-
-        analytics.track(
-            user_id,
-            event_name,
-            {
-                'category': 'certificates',
-                'label': text_type(course_id)
-            },
-            context={
-                'ip': tracking_context.get('ip'),
-                'Google Analytics': {
-                    'clientId': tracking_context.get('client_id')
-                }
-            }
-        )
+    event_name = 'edx.bi.user.certificate.generate'
+    segment.track(user_id, event_name, {
+        'category': 'certificates',
+        'label': text_type(course_id)
+    })
 
 
 @require_http_methods(["GET", "POST"])