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-rw-r--r--yaksh/models.py15
-rw-r--r--yaksh/test_models.py15
2 files changed, 20 insertions, 10 deletions
diff --git a/yaksh/models.py b/yaksh/models.py
index 9a406c3..93e656a 100644
--- a/yaksh/models.py
+++ b/yaksh/models.py
@@ -1172,7 +1172,7 @@ class QuestionPaper(models.Model):
return all_questions
def make_answerpaper(self, user, ip, attempt_num, course_id):
- """Creates an answer paper for the user to attempt the quiz"""
+ """Creates an answer paper for the user to attempt the quiz"""
try:
ans_paper = AnswerPaper.objects.get(user=user,
attempt_number=attempt_num,
@@ -1197,14 +1197,6 @@ class QuestionPaper(models.Model):
ans_paper.questions_order = ",".join(question_ids)
ans_paper.save()
ans_paper.questions_unanswered.add(*questions)
- except AnswerPaper.MultipleObjectsReturned:
- ans_paper = AnswerPaper.objects.get(user=user,
- attempt_number=attempt_num,
- question_paper=self,
- course_id=course_id
- ).order_by('-id')
- ans_paper = ans_paper[0]
-
return ans_paper
def _is_attempt_allowed(self, user, course_id):
@@ -1514,6 +1506,11 @@ class AnswerPaper(models.Model):
objects = AnswerPaperManager()
+ class Meta:
+ unique_together = ('user', 'question_paper',
+ 'attempt_number', "course"
+ )
+
def get_per_question_score(self, question_id):
if question_id not in self.get_questions().values_list('id', flat=True):
return 'NA'
diff --git a/yaksh/test_models.py b/yaksh/test_models.py
index df8372c..2aa55d4 100644
--- a/yaksh/test_models.py
+++ b/yaksh/test_models.py
@@ -12,6 +12,7 @@ from datetime import datetime, timedelta
from django.utils import timezone
import pytz
from django.contrib.auth.models import Group
+from django.db import IntegrityError
from django.core.files import File
from django.forms.models import model_to_dict
from textwrap import dedent
@@ -835,7 +836,8 @@ class AnswerPaperTestCases(unittest.TestCase):
question_paper=self.question_paper,
start_time=self.start_time,
end_time=self.end_time,
- user_ip=self.ip
+ user_ip=self.ip,
+ course=self.course
)
self.attempted_papers = AnswerPaper.objects.filter(
question_paper=self.question_paper,
@@ -1375,6 +1377,17 @@ class AnswerPaperTestCases(unittest.TestCase):
self.assertEqual(self.user2_answerpaper2.current_question(),
self.question1)
+ def test_duplicate_attempt_answerpaper(self):
+ with self.assertRaises(IntegrityError):
+ new_answerpaper = AnswerPaper.objects.create(
+ user=self.answerpaper.user,
+ question_paper=self.answerpaper.question_paper,
+ attempt_number=self.answerpaper.attempt_number,
+ start_time=self.answerpaper.start_time,
+ end_time=self.answerpaper.end_time,
+ course=self.answerpaper.course
+ )
+
###############################################################################
class CourseTestCases(unittest.TestCase):