def get_session_overview(user): """ Returns information about the last session student has been practicing. Returns: namedtuple 'session_overview' """ student = StudentModel.objects.get_or_create(user=user)[0] session = sess_service.get_session(student) if session is None: instances = [] else: instances = session.get_task_instances() if instances == [] or instances[-1].time_end is None: overall_time = 0 else: overall_delta = instances[-1].time_end - instances[0].time_start overall_time = overall_delta.seconds percentils = [] for instance in instances: percentils.append(statistics_service.percentil(instance) if instance.solved else None) return SessionOverview( task_instances = instances, overall_time = overall_time, percentils = percentils )
def get_task_by_id(user, task_id): student = StudentModel.objects.get_or_create(user=user)[0] # ask if the student is in the middle of the session task if sess_service.has_unresolved_task(student): session = sess_service.get_session(student) active_task = sess_service.get_active_task_instance(session) if active_task.task.pk == task_id: # if the given task is same as active, go in session return get_active_task_in_session(student) return get_task(student, IdSpecifidedTaskSelector(task_id))
def get_active_task_in_session(student): session = sess_service.get_session(student) active_task_instance = sess_service.get_active_task_instance(session) if not active_task_instance: raise ValueError('Student {pk} does not have an active task.') session_task_instance_info = TaskInfo( task_instance=active_task_instance, task=active_task_instance.task, student_toolbox=get_student_toolbox(student), new_instructions=get_instructions(active_task_instance.task, student), all_instructions=get_instructions(active_task_instance.task), session = session ) return session_task_instance_info
def get_task_by_id(user, task_id): student = StudentModel.objects.get_or_create(user=user)[0] # ask if the student is in the middle of the session task if sess_service.has_unresolved_task(student): session = sess_service.get_session(student) active_task = sess_service.get_active_task_instance(session) if active_task.task.pk == task_id: # if the given task is same as active, go in session return get_active_task_in_session(student) if len(TaskModel.objects.filter(pk=task_id)) == 0: # task does not exist raise LookupError('Task does not exists.') try: return get_task(student, IdSpecifidedTaskSelector(task_id)) except LookupError: # student has low level to solve the task raise LowLevelForTaskException()
def get_next_task_in_session(user): student = StudentModel.objects.get_or_create(user=user)[0] if sess_service.has_unresolved_task(student): return get_active_task_in_session(student) # next task in the session or new session task_info = get_task(student, RandomizedScoreTaskSelector()) sess_service.next_task_in_session(student, task_info.task_instance) # add info about session session = sess_service.get_session(student) task_info_with_sess = TaskInfo( task_instance=task_info.task_instance, task=task_info.task, student_toolbox=task_info.student_toolbox, new_instructions=task_info.new_instructions, all_instructions=task_info.all_instructions, session=session ) return task_info_with_sess
def test_get_session(self): session = service.get_session(self.student) self.assertEquals(self.session, session)
def test_get_session(self): session = service.get_session(self.student) self.assertEquals(self.session, session)