removed race condition & cleanup

This commit is contained in:
Joshua Sangmeister 2020-04-06 16:38:07 +02:00 committed by Emanuel Schütze
parent 7882ea1a25
commit b7b8620153
5 changed files with 30 additions and 38 deletions

View File

@ -42,6 +42,6 @@ export class User extends BaseDecimalModel<User> {
}
protected getDecimalFields(): string[] {
return ["vote_weight"];
return ['vote_weight'];
}
}

View File

@ -2,7 +2,6 @@ from decimal import Decimal
from django.contrib.auth import get_user_model
from django.db import transaction
from django.db.utils import IntegrityError
from openslides.poll.views import BaseOptionViewSet, BasePollViewSet, BaseVoteViewSet
from openslides.utils.auth import has_perm
@ -526,17 +525,11 @@ class AssignmentPollViewSet(BasePollViewSet):
poll.voted.add(check_user)
def add_user_to_voted_array(self, user, poll):
VotedModel = AssignmentPoll.voted.through
VotedModel.objects.create(assignmentpoll=poll, user=user)
def handle_named_vote(self, data, poll, user):
try:
with transaction.atomic():
return self.try_handle_named_vote(data, poll, user)
except IntegrityError:
raise ValidationError({"detail": "You have already voted"})
def try_handle_named_vote(self, data, poll, user):
if user in poll.voted.all():
raise ValidationError({"detail": "You have already voted"})
if poll.pollmethod == AssignmentPoll.POLLMETHOD_VOTES:
self.create_votes_type_votes(data, poll, user)
elif poll.pollmethod in (
@ -546,16 +539,6 @@ class AssignmentPollViewSet(BasePollViewSet):
self.create_votes_type_named_pseudoanonymous(data, poll, user, user)
def handle_pseudoanonymous_vote(self, data, poll, user):
try:
with transaction.atomic():
return self.try_handle_pseudoanonymous_vote(data, poll, user)
except IntegrityError:
raise ValidationError({"detail": "You have already voted"})
def try_handle_pseudoanonymous_vote(self, data, poll, user):
if user in poll.voted.all():
raise ValidationError({"detail": "You have already voted"})
if poll.pollmethod == AssignmentPoll.POLLMETHOD_VOTES:
self.create_votes_type_votes(data, poll, user)

View File

@ -1176,6 +1176,10 @@ class MotionPollViewSet(BasePollViewSet):
return result
def add_user_to_voted_array(self, user, poll):
VotedModel = MotionPoll.voted.through
VotedModel.objects.create(motionpoll=poll, user=user)
def handle_analog_vote(self, data, poll, user):
option = poll.options.get()
vote, _ = MotionVote.objects.get_or_create(option=option, value="Y")
@ -1223,21 +1227,11 @@ class MotionPollViewSet(BasePollViewSet):
raise ValidationError("Data must be Y or N")
def handle_named_vote(self, data, poll, user):
if user in poll.voted.all():
raise ValidationError({"detail": "You have already voted"})
poll.voted.add(user)
poll.save()
option = poll.options.get()
vote = MotionVote.objects.create(user=user, option=option)
self.handle_named_and_pseudoanonymous_vote(data, user, poll, option, vote)
def handle_pseudoanonymous_vote(self, data, poll, user):
if user in poll.voted.all():
raise ValidationError({"detail": "You have already voted"})
poll.voted.add(user)
poll.save()
option = poll.options.get()
vote = MotionVote.objects.create(user=None, option=option)
self.handle_named_and_pseudoanonymous_vote(data, user, poll, option, vote)

View File

@ -2,6 +2,7 @@ from textwrap import dedent
from django.contrib.auth.models import AnonymousUser
from django.db import transaction
from django.db.utils import IntegrityError
from rest_framework import status
from openslides.utils.auth import in_some_groups
@ -184,6 +185,7 @@ class BasePollViewSet(ModelViewSet):
return Response()
@detail_route(methods=["POST"])
@transaction.atomic
def vote(self, request, pk):
"""
For motion polls: Just "Y", "N" or "A" (if pollmethod is "YNA")
@ -219,10 +221,10 @@ class BasePollViewSet(ModelViewSet):
def assert_can_vote(self, poll, request):
"""
Raises a permission denied, if the user is not allowed to vote.
Raises a permission denied, if the user is not allowed to vote (or has already voted).
Adds the user to the voted array, so this needs to be reverted on error!
Analog: has to have manage permissions
Named & Pseudoanonymous: has to be in a poll group and present
Note: For pseudoanonymous it is *not* tested, if the user has already voted!
"""
if poll.type == BasePoll.TYPE_ANALOG:
if not self.has_manage_permissions():
@ -237,6 +239,12 @@ class BasePollViewSet(ModelViewSet):
):
self.permission_denied(request)
try:
self.add_user_to_voted_array(request.user, poll)
inform_changed_data(poll)
except IntegrityError:
raise ValidationError({"detail": "You have already voted"})
def parse_vote_value(self, obj, key):
""" Raises a ValidationError on incorrect values, including None """
if key not in obj:
@ -257,6 +265,13 @@ class BasePollViewSet(ModelViewSet):
"""
pass
def add_user_to_voted_array(self, user, poll):
"""
To be implemented by subclass. Adds the given user to the voted array of the given poll.
Throws an IntegrityError if the user already exists in the array
"""
raise NotImplementedError()
def validate_vote_data(self, data, poll, user):
"""
To be implemented by subclass. Validates the data according to poll type and method and fields by validated versions.