示例#1
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文件: views.py 项目: JacobsAlumni/jay
def vote_add(request, system_name):
    """
        Add a blank vote and redirect to its edit page
    """
    vs = get_object_or_404(VotingSystem, machine_name=system_name)

    # raise an error if the user trying to access is not an admin
    if not vs.isAdmin(request.user.profile):
        raise PermissionDenied

    v = Vote()

    s = Status()
    s.save()

    now = str(int(time.time()))

    v.name = "Untitled Vote 1"
    v.machine_name = "new_" + now

    v.system = vs
    v.status = s
    v.creator = request.user

    v.min_votes = 0
    v.max_votes = 0

    v.save()

    return redirect('votes:edit', system_name=system_name,
                    vote_name=v.machine_name)
示例#2
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    def post(self, request, **kwargs):
        action = kwargs['action']
        resource_id = kwargs['resource_id']
        resource = Resource.objects.filter(id=resource_id).first()
        user_id = self.request.user.id
        vote = Vote.objects.filter(
            resource_id=resource_id, user_id=user_id).first()
        vote_mapping = {
            'like': True,
            'unlike': False,
        }
        # Create a vote object if the user has not voted yet
        if vote is None:
            vote = Vote()
            vote.resource = resource
            vote.user = self.request.user
        if vote.vote is None or vote.vote is not vote_mapping[action]:
            # If user has not voted yet or is changing his vote set vote to
            # current vote
            vote.vote = vote_mapping[action]
            status = action
            vote.save()
        else:
            vote.delete()
            status = "novote"

        response_dict = {
            "upvotes": len(resource.upvotes()),
            "downvotes": len(resource.downvotes()),
            "status": status,
        }

        response_json = json.dumps(response_dict)
        return HttpResponse(response_json, content_type="application/json")
示例#3
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def create_vote(sender, **kwargs):
    print "Post Save triggered"
    created = kwargs.get('created')
    if created:
	print "Instance Created"
        instance = kwargs.get('instance')
        vote = Vote(positive=0, negative=0, composition=instance)
        vote.save()
 def test_for_downvote(self):
     resource = self.create_resources()
     vote = Vote()
     vote.user = self.user
     vote.resource = resource
     vote.vote = False
     vote.save()
     self.assertEqual(len(resource.downvotes()), 1)
示例#5
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def issueVote(request, id):
	try:
		issue = Issue.objects.get(pk=id)
	except Issue.DoesNotExist:
		messages.add_message(request, messages.ERROR, 'Issue #%s not found'%(id))
		return redirect(reverse('index'))
	voted = request.user.vote_set.filter(issue=id)
	query = request.GET
	if 'vote' in query and not voted and query['vote'] in ('Yae','Nay'):
		vote = Vote(vote=(query['vote']=='Yae'), issue=issue, user=request.user)
		vote.save()
		messages.add_message(request, messages.INFO, 'Your vote has been saved')
	return redirect(reverse('issue_view',kwargs={'id':id}))
示例#6
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    def create(self, validated_data):
        """
        Custom create method. Support nested multiple vote choices creation.

        """
        assert "choices" in validated_data

        choices_data = validated_data.pop("choices")

        vote = Vote(**validated_data)
        vote.save()

        self.create_choices(vote, choices_data)

        return vote
示例#7
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def do_vote(user, content, vote_request):
    try:
        content_type = ContentType.objects.get_for_model(content)
        old_vote = Vote.objects.get(user=user,
                                    object_id=content.id,
                                    content_type=content_type)
        vote_was_up = old_vote.isVoteUp
        old_vote.delete()
        new_vote = False
    except:
        new_vote = True

    vote = Vote(user=user, content=content)

    if new_vote:
        if vote_request == "up":
            vote.isVoteUp = True
            vote.save()
            return 1
        elif vote_request == "down":
            vote.isVoteUp = False
            vote.save()
            return -1

    elif not new_vote:
        if vote_request == "up":
            if vote_was_up:
                return 0
            else:
                vote.isVoteUp = True
                vote.save()
                return 1
        elif vote_request == "down":
            if not vote_was_up:
                return 0
            else:
                vote.isVoteUp = False
                vote.save()
                return -1
    else:
        raise Exception("Unknown vote request " + str(vote_request))
示例#8
0
def create_vote(sender, **kwargs):
    created = kwargs.get('created')
    if created:
        instance = kwargs.get('instance')
        vote = Vote(positive=0, negative=0, composition=instance)
        vote.save()
示例#9
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 def test_can_not_save_empty_vote_name(self):
     vote_ = Vote(vote_name='')
     with self.assertRaises(ValidationError):
         vote_.save()
         vote_.full_clean()
class VoteTests(UserSetUp, TestCase):
    """Vote model tests."""

    def setUp(self):
        super(VoteTests, self).setUp()

        self.exhibition = Exhibition.objects.create(
            title="New Exhibition", description="description goes here", author=self.user
        )
        self.artwork = Artwork.objects.create(title="New Artwork", code="// code goes here", author=self.user)
        self.submission = Submission.objects.create(
            exhibition=self.exhibition, artwork=self.artwork, submitted_by=self.user
        )
        self.vote = Vote(submission=self.submission, status=Vote.THUMBS_UP, voted_by=self.user)

    def test_str(self):
        self.assertEquals(str(self.vote), "New Exhibition :: New Artwork :: Thumbs Up")

    def test_str_unset(self):
        unset_vote = Vote()
        self.assertEquals(str(unset_vote), "unset :: none")

    def test_thumbs_up_score(self):

        self.assertEqual(self.submission.score, 0)

        # Creating a thumbs up vote increments submission.score
        self.vote.save()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 1)

        # Editing a thumbs up vote does not change submission.score
        self.vote.voted_by = self.staff_user
        self.vote.save()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 1)

        # Deleting a thumbs up vote decrements submission.score
        self.vote.delete()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 0)

    def test_save_unique(self):

        # one vote per submission per user
        self.assertEqual(self.vote.save(), None)

        vote2 = Vote(submission=self.submission, voted_by=self.user, status=Vote.THUMBS_UP)
        self.assertRaisesRegexp(IntegrityError, "columns submission_id, voted_by_id are not unique", vote2.save)

    def test_can_delete(self):

        self.vote.save()

        # public cannot delete a vote
        self.assertFalse(self.vote.can_delete())

        # voter can delete own vote
        self.assertTrue(self.vote.can_delete(user=self.user))

        # other users cannot delete another user's vote
        self.assertFalse(self.vote.can_delete(user=self.staff_user))
        self.assertFalse(self.vote.can_delete(user=self.super_user))

    def test_can_delete_queryset(self):

        exhibition1 = Exhibition.objects.create(
            title="Student Exhibition", description="description goes here", author=self.user
        )
        submission1 = Submission.objects.create(exhibition=exhibition1, artwork=self.artwork, submitted_by=self.user)

        exhibition2 = Exhibition.objects.create(
            title="Staff Exhibition", description="description goes here", author=self.user
        )
        submission2 = Submission.objects.create(
            exhibition=exhibition2, artwork=self.artwork, submitted_by=self.staff_user
        )

        student_vote1 = Vote.objects.create(submission=submission1, status=Vote.THUMBS_UP, voted_by=self.user)
        staff_vote1 = Vote.objects.create(submission=submission1, status=Vote.THUMBS_UP, voted_by=self.staff_user)
        super_vote1 = Vote.objects.create(submission=submission1, status=Vote.THUMBS_UP, voted_by=self.super_user)

        student_vote2 = Vote.objects.create(submission=submission2, status=Vote.THUMBS_UP, voted_by=self.user)
        staff_vote2 = Vote.objects.create(submission=submission2, status=Vote.THUMBS_UP, voted_by=self.staff_user)
        super_vote2 = Vote.objects.create(submission=submission2, status=Vote.THUMBS_UP, voted_by=self.super_user)

        # public can't delete any votes
        public_qs = Vote.can_delete_queryset()
        self.assertEquals(0, len(public_qs.all()))

        # students can delete own votes
        student_qs = Vote.can_delete_queryset(user=self.user)
        self.assertEquals(2, len(student_qs.all()))
        self.assertTrue(student_qs.all()[0].can_delete(user=self.user))
        self.assertTrue(student_qs.all()[1].can_delete(user=self.user))

        student_sub1_qs = Vote.can_delete_queryset(user=self.user, submission=submission1)
        self.assertEquals(1, len(student_sub1_qs.all()))
        self.assertEquals(student_vote1.id, student_sub1_qs.all()[0].id)
        self.assertTrue(student_sub1_qs.all()[0].can_delete(user=self.user))

        student_sub2_qs = Vote.can_delete_queryset(user=self.user, submission=submission2)
        self.assertEquals(1, len(student_sub2_qs.all()))
        self.assertEquals(student_vote2.id, student_sub2_qs.all()[0].id)
        self.assertTrue(student_sub2_qs.all()[0].can_delete(user=self.user))

        student_subs_qs = Vote.can_delete_queryset(user=self.user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(student_subs_qs.all()))
        self.assertEquals(student_vote1.id, student_subs_qs.all()[0].id)
        self.assertEquals(student_vote2.id, student_subs_qs.all()[1].id)
        self.assertTrue(student_subs_qs.all()[0].can_delete(user=self.user))
        self.assertTrue(student_subs_qs.all()[1].can_delete(user=self.user))

        student_exh1_qs = Vote.can_delete_queryset(user=self.user, exhibition=exhibition1)
        self.assertEquals(1, len(student_exh1_qs.all()))
        self.assertEquals(student_vote1.id, student_exh1_qs.all()[0].id)
        self.assertTrue(student_qs.all()[0].can_delete(user=self.user))

        student_exh2_qs = Vote.can_delete_queryset(user=self.user, exhibition=exhibition2)
        self.assertEquals(1, len(student_exh2_qs.all()))
        self.assertEquals(student_vote2.id, student_exh2_qs.all()[0].id)
        self.assertTrue(student_exh2_qs.all()[0].can_delete(user=self.user))

        # staff can delete own votes
        staff_qs = Vote.can_delete_queryset(user=self.staff_user)
        self.assertEquals(2, len(staff_qs.all()))
        self.assertTrue(staff_qs.all()[0].can_delete(user=self.staff_user))
        self.assertTrue(staff_qs.all()[1].can_delete(user=self.staff_user))

        staff_sub1_qs = Vote.can_delete_queryset(user=self.staff_user, submission=submission1)
        self.assertEquals(1, len(staff_sub1_qs.all()))
        self.assertEquals(staff_vote1.id, staff_sub1_qs.all()[0].id)
        self.assertTrue(staff_sub1_qs.all()[0].can_delete(user=self.staff_user))

        staff_sub2_qs = Vote.can_delete_queryset(user=self.staff_user, submission=submission2)
        self.assertEquals(1, len(staff_sub2_qs.all()))
        self.assertEquals(staff_vote2.id, staff_sub2_qs.all()[0].id)
        self.assertTrue(staff_sub2_qs.all()[0].can_delete(user=self.staff_user))

        staff_subs_qs = Vote.can_delete_queryset(user=self.staff_user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(staff_subs_qs.all()))
        self.assertEquals(staff_vote1.id, staff_subs_qs.all()[0].id)
        self.assertEquals(staff_vote2.id, staff_subs_qs.all()[1].id)
        self.assertTrue(staff_subs_qs.all()[0].can_delete(user=self.staff_user))
        self.assertTrue(staff_subs_qs.all()[1].can_delete(user=self.staff_user))

        staff_exh1_qs = Vote.can_delete_queryset(user=self.staff_user, exhibition=exhibition1)
        self.assertEquals(1, len(staff_exh1_qs.all()))
        self.assertEquals(staff_vote1.id, staff_exh1_qs.all()[0].id)
        self.assertTrue(staff_exh1_qs.all()[0].can_delete(user=self.staff_user))

        staff_exh2_qs = Vote.can_delete_queryset(user=self.staff_user, exhibition=exhibition2)
        self.assertEquals(1, len(staff_exh2_qs.all()))
        self.assertEquals(staff_vote2.id, staff_exh2_qs.all()[0].id)
        self.assertTrue(staff_exh2_qs.all()[0].can_delete(user=self.staff_user))

        # superusers can delete own votes
        super_qs = Vote.can_delete_queryset(user=self.super_user)
        self.assertEquals(2, len(super_qs.all()))
        self.assertTrue(super_qs.all()[0].can_delete(user=self.super_user))
        self.assertTrue(super_qs.all()[1].can_delete(user=self.super_user))

        super_sub1_qs = Vote.can_delete_queryset(user=self.super_user, submission=submission1)
        self.assertEquals(1, len(super_sub1_qs.all()))
        self.assertEquals(super_vote1.id, super_sub1_qs.all()[0].id)
        self.assertTrue(super_sub1_qs.all()[0].can_delete(user=self.super_user))

        super_sub2_qs = Vote.can_delete_queryset(user=self.super_user, submission=submission2)
        self.assertEquals(1, len(super_sub2_qs.all()))
        self.assertEquals(super_vote2.id, super_sub2_qs.all()[0].id)
        self.assertTrue(super_sub2_qs.all()[0].can_delete(user=self.super_user))

        super_subs_qs = Vote.can_delete_queryset(user=self.super_user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(super_subs_qs.all()))
        self.assertEquals(super_vote1.id, super_subs_qs.all()[0].id)
        self.assertEquals(super_vote2.id, super_subs_qs.all()[1].id)
        self.assertTrue(super_subs_qs.all()[0].can_delete(user=self.super_user))
        self.assertTrue(super_subs_qs.all()[1].can_delete(user=self.super_user))

        super_exh1_qs = Vote.can_delete_queryset(user=self.super_user, exhibition=exhibition1)
        self.assertEquals(1, len(super_exh1_qs.all()))
        self.assertEquals(super_vote1.id, super_exh1_qs.all()[0].id)
        self.assertTrue(super_exh1_qs.all()[0].can_delete(user=self.super_user))

        super_exh2_qs = Vote.can_delete_queryset(user=self.super_user, exhibition=exhibition2)
        self.assertEquals(1, len(super_exh2_qs.all()))
        self.assertEquals(super_vote2.id, super_exh2_qs.all()[0].id)
        self.assertTrue(super_exh2_qs.all()[0].can_delete(user=self.super_user))
class VoteTests(UserSetUp, TestCase):
    """Vote model tests."""
    def setUp(self):
        super(VoteTests, self).setUp()

        self.exhibition = Exhibition.objects.create(
            title='New Exhibition',
            description='description goes here',
            author=self.user)
        self.artwork = Artwork.objects.create(title='New Artwork',
                                              code='// code goes here',
                                              author=self.user)
        self.submission = Submission.objects.create(exhibition=self.exhibition,
                                                    artwork=self.artwork,
                                                    submitted_by=self.user)
        self.vote = Vote(submission=self.submission,
                         status=Vote.THUMBS_UP,
                         voted_by=self.user)

    def test_str(self):
        self.assertEquals(str(self.vote),
                          'New Exhibition :: New Artwork :: Thumbs Up')

    def test_str_unset(self):
        unset_vote = Vote()
        self.assertEquals(str(unset_vote), 'unset :: none')

    def test_thumbs_up_score(self):

        self.assertEqual(self.submission.score, 0)

        # Creating a thumbs up vote increments submission.score
        self.vote.save()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 1)

        # Editing a thumbs up vote does not change submission.score
        self.vote.voted_by = self.staff_user
        self.vote.save()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 1)

        # Deleting a thumbs up vote decrements submission.score
        self.vote.delete()
        self.submission = Submission.objects.get(id=self.submission.id)
        self.assertEqual(self.submission.score, 0)

    def test_save_unique(self):

        # one vote per submission per user
        self.assertEqual(self.vote.save(), None)

        vote2 = Vote(submission=self.submission,
                     voted_by=self.user,
                     status=Vote.THUMBS_UP)
        self.assertRaisesRegexp(
            IntegrityError,
            'columns submission_id, voted_by_id are not unique', vote2.save)

    def test_can_delete(self):

        self.vote.save()

        # public cannot delete a vote
        self.assertFalse(self.vote.can_delete())

        # voter can delete own vote
        self.assertTrue(self.vote.can_delete(user=self.user))

        # other users cannot delete another user's vote
        self.assertFalse(self.vote.can_delete(user=self.staff_user))
        self.assertFalse(self.vote.can_delete(user=self.super_user))

    def test_can_delete_queryset(self):

        exhibition1 = Exhibition.objects.create(
            title='Student Exhibition',
            description='description goes here',
            author=self.user)
        submission1 = Submission.objects.create(exhibition=exhibition1,
                                                artwork=self.artwork,
                                                submitted_by=self.user)

        exhibition2 = Exhibition.objects.create(
            title='Staff Exhibition',
            description='description goes here',
            author=self.user)
        submission2 = Submission.objects.create(exhibition=exhibition2,
                                                artwork=self.artwork,
                                                submitted_by=self.staff_user)

        student_vote1 = Vote.objects.create(submission=submission1,
                                            status=Vote.THUMBS_UP,
                                            voted_by=self.user)
        staff_vote1 = Vote.objects.create(submission=submission1,
                                          status=Vote.THUMBS_UP,
                                          voted_by=self.staff_user)
        super_vote1 = Vote.objects.create(submission=submission1,
                                          status=Vote.THUMBS_UP,
                                          voted_by=self.super_user)

        student_vote2 = Vote.objects.create(submission=submission2,
                                            status=Vote.THUMBS_UP,
                                            voted_by=self.user)
        staff_vote2 = Vote.objects.create(submission=submission2,
                                          status=Vote.THUMBS_UP,
                                          voted_by=self.staff_user)
        super_vote2 = Vote.objects.create(submission=submission2,
                                          status=Vote.THUMBS_UP,
                                          voted_by=self.super_user)

        # public can't delete any votes
        public_qs = Vote.can_delete_queryset()
        self.assertEquals(0, len(public_qs.all()))

        # students can delete own votes
        student_qs = Vote.can_delete_queryset(user=self.user)
        self.assertEquals(2, len(student_qs.all()))
        self.assertTrue(student_qs.all()[0].can_delete(user=self.user))
        self.assertTrue(student_qs.all()[1].can_delete(user=self.user))

        student_sub1_qs = Vote.can_delete_queryset(user=self.user,
                                                   submission=submission1)
        self.assertEquals(1, len(student_sub1_qs.all()))
        self.assertEquals(student_vote1.id, student_sub1_qs.all()[0].id)
        self.assertTrue(student_sub1_qs.all()[0].can_delete(user=self.user))

        student_sub2_qs = Vote.can_delete_queryset(user=self.user,
                                                   submission=submission2)
        self.assertEquals(1, len(student_sub2_qs.all()))
        self.assertEquals(student_vote2.id, student_sub2_qs.all()[0].id)
        self.assertTrue(student_sub2_qs.all()[0].can_delete(user=self.user))

        student_subs_qs = Vote.can_delete_queryset(
            user=self.user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(student_subs_qs.all()))
        self.assertEquals(student_vote1.id, student_subs_qs.all()[0].id)
        self.assertEquals(student_vote2.id, student_subs_qs.all()[1].id)
        self.assertTrue(student_subs_qs.all()[0].can_delete(user=self.user))
        self.assertTrue(student_subs_qs.all()[1].can_delete(user=self.user))

        student_exh1_qs = Vote.can_delete_queryset(user=self.user,
                                                   exhibition=exhibition1)
        self.assertEquals(1, len(student_exh1_qs.all()))
        self.assertEquals(student_vote1.id, student_exh1_qs.all()[0].id)
        self.assertTrue(student_qs.all()[0].can_delete(user=self.user))

        student_exh2_qs = Vote.can_delete_queryset(user=self.user,
                                                   exhibition=exhibition2)
        self.assertEquals(1, len(student_exh2_qs.all()))
        self.assertEquals(student_vote2.id, student_exh2_qs.all()[0].id)
        self.assertTrue(student_exh2_qs.all()[0].can_delete(user=self.user))

        # staff can delete own votes
        staff_qs = Vote.can_delete_queryset(user=self.staff_user)
        self.assertEquals(2, len(staff_qs.all()))
        self.assertTrue(staff_qs.all()[0].can_delete(user=self.staff_user))
        self.assertTrue(staff_qs.all()[1].can_delete(user=self.staff_user))

        staff_sub1_qs = Vote.can_delete_queryset(user=self.staff_user,
                                                 submission=submission1)
        self.assertEquals(1, len(staff_sub1_qs.all()))
        self.assertEquals(staff_vote1.id, staff_sub1_qs.all()[0].id)
        self.assertTrue(
            staff_sub1_qs.all()[0].can_delete(user=self.staff_user))

        staff_sub2_qs = Vote.can_delete_queryset(user=self.staff_user,
                                                 submission=submission2)
        self.assertEquals(1, len(staff_sub2_qs.all()))
        self.assertEquals(staff_vote2.id, staff_sub2_qs.all()[0].id)
        self.assertTrue(
            staff_sub2_qs.all()[0].can_delete(user=self.staff_user))

        staff_subs_qs = Vote.can_delete_queryset(
            user=self.staff_user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(staff_subs_qs.all()))
        self.assertEquals(staff_vote1.id, staff_subs_qs.all()[0].id)
        self.assertEquals(staff_vote2.id, staff_subs_qs.all()[1].id)
        self.assertTrue(
            staff_subs_qs.all()[0].can_delete(user=self.staff_user))
        self.assertTrue(
            staff_subs_qs.all()[1].can_delete(user=self.staff_user))

        staff_exh1_qs = Vote.can_delete_queryset(user=self.staff_user,
                                                 exhibition=exhibition1)
        self.assertEquals(1, len(staff_exh1_qs.all()))
        self.assertEquals(staff_vote1.id, staff_exh1_qs.all()[0].id)
        self.assertTrue(
            staff_exh1_qs.all()[0].can_delete(user=self.staff_user))

        staff_exh2_qs = Vote.can_delete_queryset(user=self.staff_user,
                                                 exhibition=exhibition2)
        self.assertEquals(1, len(staff_exh2_qs.all()))
        self.assertEquals(staff_vote2.id, staff_exh2_qs.all()[0].id)
        self.assertTrue(
            staff_exh2_qs.all()[0].can_delete(user=self.staff_user))

        # superusers can delete own votes
        super_qs = Vote.can_delete_queryset(user=self.super_user)
        self.assertEquals(2, len(super_qs.all()))
        self.assertTrue(super_qs.all()[0].can_delete(user=self.super_user))
        self.assertTrue(super_qs.all()[1].can_delete(user=self.super_user))

        super_sub1_qs = Vote.can_delete_queryset(user=self.super_user,
                                                 submission=submission1)
        self.assertEquals(1, len(super_sub1_qs.all()))
        self.assertEquals(super_vote1.id, super_sub1_qs.all()[0].id)
        self.assertTrue(
            super_sub1_qs.all()[0].can_delete(user=self.super_user))

        super_sub2_qs = Vote.can_delete_queryset(user=self.super_user,
                                                 submission=submission2)
        self.assertEquals(1, len(super_sub2_qs.all()))
        self.assertEquals(super_vote2.id, super_sub2_qs.all()[0].id)
        self.assertTrue(
            super_sub2_qs.all()[0].can_delete(user=self.super_user))

        super_subs_qs = Vote.can_delete_queryset(
            user=self.super_user, submission=[submission1.id, submission2.id])
        self.assertEquals(2, len(super_subs_qs.all()))
        self.assertEquals(super_vote1.id, super_subs_qs.all()[0].id)
        self.assertEquals(super_vote2.id, super_subs_qs.all()[1].id)
        self.assertTrue(
            super_subs_qs.all()[0].can_delete(user=self.super_user))
        self.assertTrue(
            super_subs_qs.all()[1].can_delete(user=self.super_user))

        super_exh1_qs = Vote.can_delete_queryset(user=self.super_user,
                                                 exhibition=exhibition1)
        self.assertEquals(1, len(super_exh1_qs.all()))
        self.assertEquals(super_vote1.id, super_exh1_qs.all()[0].id)
        self.assertTrue(
            super_exh1_qs.all()[0].can_delete(user=self.super_user))

        super_exh2_qs = Vote.can_delete_queryset(user=self.super_user,
                                                 exhibition=exhibition2)
        self.assertEquals(1, len(super_exh2_qs.all()))
        self.assertEquals(super_vote2.id, super_exh2_qs.all()[0].id)
        self.assertTrue(
            super_exh2_qs.all()[0].can_delete(user=self.super_user))