Merge pull request #952 from MITx/vik/add_instrumentation

Vik/add instrumentation

common/djangoapps/student/views.py

@@ -39,6 +39,8 @@ from collections import namedtuple
 from courseware.courses import get_courses_by_university
 from courseware.access import has_access
 
+from statsd import statsd
+
 log = logging.getLogger("mitx.student")
 Article = namedtuple('Article', 'title url author image deck publication publish_date')
 
@@ -204,7 +206,13 @@ def change_enrollment(request):
             return {'success': False,
                     'error': 'enrollment in {} not allowed at this time'
                     .format(course.display_name)}
-
+                    
+        org, course_num, run=course_id.split("/")        
+        statsd.increment("common.student.enrollment",
+                        tags=["org:{0}".format(org),
+                              "course:{0}".format(course_num),
+                              "run:{0}".format(run)])
+        
         enrollment, created = CourseEnrollment.objects.get_or_create(user=user, course_id=course.id)
         return {'success': True}
 
@@ -212,6 +220,13 @@ def change_enrollment(request):
         try:
             enrollment = CourseEnrollment.objects.get(user=user, course_id=course_id)
             enrollment.delete()
+            
+            org, course_num, run=course_id.split("/")        
+            statsd.increment("common.student.unenrollment",
+                            tags=["org:{0}".format(org),
+                                  "course:{0}".format(course_num),
+                                  "run:{0}".format(run)])
+                              
             return {'success': True}
         except CourseEnrollment.DoesNotExist:
             return {'success': False, 'error': 'You are not enrolled for this course.'}
@@ -260,7 +275,9 @@ def login_user(request, error=""):
         log.info("Login success - {0} ({1})".format(username, email))
 
         try_change_enrollment(request)
-
+        
+        statsd.increment("common.student.successful_login")
+        
         return HttpResponse(json.dumps({'success': True}))
     
     log.warning("Login failed - Account not active for user {0}, resending activation".format(username))
@@ -466,7 +483,9 @@ def create_account(request, post_override=None):
             log.debug('bypassing activation email')
             login_user.is_active = True
             login_user.save()
-
+            
+    statsd.increment("common.student.account_created")
+    
     js = {'success': True}
     return HttpResponse(json.dumps(js), mimetype="application/json")
 

common/lib/capa/capa/correctmap.py

@@ -3,7 +3,6 @@
 #
 # Used by responsetypes and capa_problem
 
-
 class CorrectMap(object):
     """
     Stores map between answer_id and response evaluation result for each question

lms/djangoapps/courseware/module_render.py

@@ -28,6 +28,8 @@ from xmodule.x_module import ModuleSystem
 from xmodule.error_module import ErrorDescriptor, NonStaffErrorDescriptor
 from xmodule_modifiers import replace_course_urls, replace_static_urls, add_histogram, wrap_xmodule
 
+from statsd import statsd
+
 log = logging.getLogger("mitx.courseware")
 
 
@@ -382,6 +384,15 @@ def xqueue_callback(request, course_id, userid, id, dispatch):
     if instance_module.grade != oldgrade or instance_module.state != old_instance_state:
         instance_module.save()
 
+        #Bin score into range and increment stats
+        score_bucket=get_score_bucket(instance_module.grade, instance_module.max_grade)
+        org, course_num, run=course_id.split("/")        
+        statsd.increment("lms.courseware.question_answered",
+                        tags=["org:{0}".format(org),
+                              "course:{0}".format(course_num),
+                              "run:{0}".format(run), 
+                              "score_bucket:{0}".format(score_bucket), 
+                              "type:xqueue"])
     return HttpResponse("")
 
 
@@ -466,6 +477,17 @@ def modx_dispatch(request, dispatch, location, course_id):
             instance_module.max_grade != old_instance_max_grade):
             instance_module.save()
 
+            #Bin score into range and increment stats
+            score_bucket=get_score_bucket(instance_module.grade, instance_module.max_grade)
+            org, course_num, run=course_id.split("/")        
+            statsd.increment("lms.courseware.question_answered",
+                            tags=["org:{0}".format(org),
+                                  "course:{0}".format(course_num),
+                                  "run:{0}".format(run), 
+                                  "score_bucket:{0}".format(score_bucket), 
+                                  "type:ajax"])
+
+
     if shared_module is not None:
         shared_module.state = instance.get_shared_state()
         if shared_module.state != old_shared_state:
@@ -511,4 +533,17 @@ def preview_chemcalc(request):
     return HttpResponse(json.dumps(result))
 
 
+def get_score_bucket(grade,max_grade):
+    """
+    Function to split arbitrary score ranges into 3 buckets.
+    Used with statsd tracking.
+    """
+    score_bucket="incorrect"
+    if(grade>0 and grade<max_grade):
+        score_bucket="partial"
+    elif(grade==max_grade):
+        score_bucket="correct"
+
+    return score_bucket
+
 

requirements.txt

@@ -50,3 +50,4 @@ pygraphviz
 -r repo-requirements.txt
 pil
 nltk
+dogstatsd-python