def update_assessment_transaction(
self, email, assessment_type, new_answers, score):
"""Stores answer and updates user scores.
Args:
email: the student's email address.
assessment_type: the title of the assessment.
new_answers: the latest set of answers supplied by the student.
score: the numerical assessment score.
Returns:
the student instance.
"""
# pylint: disable=protected-access
student = Student._get_enrolled_student_by_email(email)
course = self.get_course()
# It may be that old Student entities don't have user_id set; fix it.
if not student.user_id:
student.user_id = self.get_user().user_id()
answers = StudentAnswersEntity.get_by_key_name(student.user_id)
if not answers:
answers = StudentAnswersEntity(key_name=student.user_id)
answers.updated_on = datetime.datetime.now()
utils.set_answer(answers, assessment_type, new_answers)
store_score(course, student, assessment_type, score)
student.put()
answers.put()
# Also record the event, which is useful for tracking multiple
# submissions and history.
models.EventEntity.record(
'submit-assessment', self.get_user(), transforms.dumps({
'type': 'assessment-%s' % assessment_type,
'values': new_answers, 'location': 'AnswerHandler'}))
return student
