b5cb694fc7
Adds "no" as the opposite of "votes" as assignment poll method Added global_yes, enabled new voting mode `N` in the server Layout, Tables, Charts, Projector, Vote CSS, Cleanups, Percent bases, analog votes and more
649 lines
26 KiB
Python
649 lines
26 KiB
Python
from decimal import Decimal
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from django.contrib.auth import get_user_model
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from django.db import transaction
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from openslides.core.config import config
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from openslides.poll.views import BaseOptionViewSet, BasePollViewSet, BaseVoteViewSet
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from openslides.utils.auth import has_perm
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from openslides.utils.autoupdate import inform_changed_data
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from openslides.utils.rest_api import (
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ModelViewSet,
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Response,
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ValidationError,
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detail_route,
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)
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from openslides.utils.utils import is_int
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from .access_permissions import AssignmentAccessPermissions
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from .models import (
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Assignment,
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AssignmentOption,
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AssignmentPoll,
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AssignmentRelatedUser,
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AssignmentVote,
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)
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# Viewsets for the REST API
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class AssignmentViewSet(ModelViewSet):
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"""
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API endpoint for assignments.
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There are the following views: metadata, list, retrieve, create,
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partial_update, update, destroy, candidature_self, candidature_other and create_poll.
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"""
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access_permissions = AssignmentAccessPermissions()
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queryset = Assignment.objects.all()
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def check_view_permissions(self):
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"""
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Returns True if the user has required permissions.
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"""
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if self.action in ("list", "retrieve"):
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result = self.get_access_permissions().check_permissions(self.request.user)
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elif self.action == "metadata":
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# Everybody is allowed to see the metadata.
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result = True
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elif self.action in (
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"create",
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"partial_update",
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"update",
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"destroy",
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"sort_related_users",
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):
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result = has_perm(self.request.user, "assignments.can_see") and has_perm(
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self.request.user, "assignments.can_manage"
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)
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elif self.action == "candidature_self":
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result = has_perm(self.request.user, "assignments.can_see") and has_perm(
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self.request.user, "assignments.can_nominate_self"
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)
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elif self.action == "candidature_other":
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result = has_perm(self.request.user, "assignments.can_see") and has_perm(
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self.request.user, "assignments.can_nominate_other"
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)
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else:
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result = False
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return result
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def perform_create(self, serializer):
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serializer.save(request_user=self.request.user)
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@detail_route(methods=["post", "delete"])
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def candidature_self(self, request, pk=None):
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"""
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View to nominate self as candidate (POST) or withdraw own
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candidature (DELETE).
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"""
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assignment = self.get_object()
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if request.method == "POST":
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message = self.nominate_self(request, assignment)
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else:
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# request.method == 'DELETE'
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message = self.withdraw_self(request, assignment)
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return Response({"detail": message})
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def nominate_self(self, request, assignment):
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if assignment.phase == assignment.PHASE_FINISHED:
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raise ValidationError(
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{
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"detail": "You can not candidate to this election because it is finished."
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}
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)
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if assignment.phase == assignment.PHASE_VOTING and not has_perm(
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request.user, "assignments.can_manage"
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):
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# To nominate self during voting you have to be a manager.
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self.permission_denied(request)
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# If the request.user is already a candidate he can nominate himself nevertheless.
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assignment.add_candidate(request.user)
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# Send new candidate via autoupdate because users without permission
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# to see users may not have it but can get it now.
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inform_changed_data([request.user])
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return "You were nominated successfully."
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def withdraw_self(self, request, assignment):
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# Withdraw candidature.
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if assignment.phase == assignment.PHASE_FINISHED:
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raise ValidationError(
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{
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"detail": "You can not withdraw your candidature to this election because it is finished."
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}
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)
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if assignment.phase == assignment.PHASE_VOTING and not has_perm(
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request.user, "assignments.can_manage"
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):
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# To withdraw self during voting you have to be a manager.
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self.permission_denied(request)
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if not assignment.is_candidate(request.user):
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raise ValidationError(
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{"detail": "You are not a candidate of this election."}
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)
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assignment.remove_candidate(request.user)
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return "You have withdrawn your candidature successfully."
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@detail_route(methods=["post", "delete"])
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def candidature_other(self, request, pk=None):
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"""
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View to nominate other users (POST) or delete their candidature
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status (DELETE). The client has to send {'user': <id>}.
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"""
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user_id = request.data.get("user")
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if not isinstance(user_id, int):
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raise ValidationError({"detail": "user_id must be an int."})
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try:
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user = get_user_model().objects.get(pk=user_id)
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except get_user_model().DoesNotExist:
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raise ValidationError(
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{"detail": "Invalid data. User {0} does not exist.", "args": [user_id]}
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)
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assignment = self.get_object()
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if request.method == "POST":
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return self.nominate_other(request, user, assignment)
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else:
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# request.method == 'DELETE'
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return self.withdraw_other(request, user, assignment)
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def nominate_other(self, request, user, assignment):
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if assignment.phase == assignment.PHASE_FINISHED:
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raise ValidationError(
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{
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"detail": "You can not nominate someone to this election because it is finished."
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}
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)
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if assignment.phase == assignment.PHASE_VOTING and not has_perm(
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request.user, "assignments.can_manage"
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):
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# To nominate another user during voting you have to be a manager.
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self.permission_denied(request)
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if assignment.is_candidate(user):
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raise ValidationError(
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{"detail": "User {0} is already nominated.", "args": [str(user)]}
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)
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assignment.add_candidate(user)
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# Send new candidate via autoupdate because users without permission
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# to see users may not have it but can get it now.
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inform_changed_data(user)
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return Response(
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{"detail": "User {0} was nominated successfully.", "args": [str(user)]}
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)
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def withdraw_other(self, request, user, assignment):
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# To delete candidature status you have to be a manager.
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if not has_perm(request.user, "assignments.can_manage"):
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self.permission_denied(request)
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if assignment.phase == assignment.PHASE_FINISHED:
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raise ValidationError(
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{
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"detail": "You can not delete someone's candidature to this election because it is finished."
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}
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)
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if not assignment.is_candidate(user):
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raise ValidationError(
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{
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"detail": "User {0} has no status in this election.",
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"args": [str(user)],
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}
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)
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assignment.remove_candidate(user)
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return Response(
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{"detail": "Candidate {0} was withdrawn successfully.", "args": [str(user)]}
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)
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@detail_route(methods=["post"])
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def sort_related_users(self, request, pk=None):
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"""
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Special view endpoint to sort the assignment related users.
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Expects a list of IDs of the related users (pk of AssignmentRelatedUser model).
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"""
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assignment = self.get_object()
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# Check data
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related_user_ids = request.data.get("related_users")
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if not isinstance(related_user_ids, list):
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raise ValidationError({"detail": "users has to be a list of IDs."})
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# Get all related users from AssignmentRelatedUser.
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related_users = {}
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for related_user in AssignmentRelatedUser.objects.filter(
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assignment__id=assignment.id
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):
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related_users[related_user.pk] = related_user
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# Check all given candidates from the request
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valid_related_users = []
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for related_user_id in related_user_ids:
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if (
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not isinstance(related_user_id, int)
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or related_users.get(related_user_id) is None
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):
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raise ValidationError({"detail": "Invalid data."})
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valid_related_users.append(related_users[related_user_id])
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# Sort the related users
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weight = 1
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with transaction.atomic():
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for valid_related_user in valid_related_users:
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valid_related_user.weight = weight
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valid_related_user.save(skip_autoupdate=True)
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weight += 1
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# send autoupdate
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inform_changed_data(assignment)
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# Initiate response.
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return Response({"detail": "Assignment related users successfully sorted."})
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class AssignmentPollViewSet(BasePollViewSet):
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"""
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API endpoint for assignment polls.
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There are the following views: update, partial_update and destroy.
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"""
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queryset = AssignmentPoll.objects.all()
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def has_manage_permissions(self):
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"""
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Returns True if the user has required permissions.
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"""
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return has_perm(self.request.user, "assignments.can_see") and has_perm(
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self.request.user, "assignments.can_manage"
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)
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def perform_create(self, serializer):
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assignment = serializer.validated_data["assignment"]
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if not assignment.candidates.exists():
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raise ValidationError(
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{"detail": "Cannot create poll because there are no candidates."}
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)
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super().perform_create(serializer)
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poll = AssignmentPoll.objects.get(pk=serializer.data["id"])
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poll.db_amount_global_yes = Decimal(0)
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poll.db_amount_global_no = Decimal(0)
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poll.db_amount_global_abstain = Decimal(0)
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poll.save()
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def handle_analog_vote(self, data, poll):
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for field in ["votesvalid", "votesinvalid", "votescast"]:
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setattr(poll, field, data[field])
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global_yes_enabled = poll.global_yes and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if global_yes_enabled:
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poll.amount_global_yes = data.get("amount_global_yes", Decimal(0))
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global_no_enabled = poll.global_no and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if global_no_enabled:
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poll.amount_global_no = data.get("amount_global_no", Decimal(0))
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global_abstain_enabled = poll.global_abstain and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if global_abstain_enabled:
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poll.amount_global_abstain = data.get("amount_global_abstain", Decimal(0))
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options = poll.get_options()
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options_data = data.get("options")
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with transaction.atomic():
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for option_id, vote in options_data.items():
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option = options.get(pk=int(option_id))
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if poll.pollmethod == AssignmentPoll.POLLMETHOD_N:
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vote_obj, _ = AssignmentVote.objects.get_or_create(
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option=option, value="N"
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)
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vote_obj.weight = vote["N"]
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vote_obj.save()
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elif poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_YN,
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AssignmentPoll.POLLMETHOD_YNA,
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):
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# All three methods have a Y
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vote_obj, _ = AssignmentVote.objects.get_or_create(
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option=option, value="Y"
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)
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vote_obj.weight = vote["Y"]
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vote_obj.save()
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if poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_YN,
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AssignmentPoll.POLLMETHOD_YNA,
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):
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vote_obj, _ = AssignmentVote.objects.get_or_create(
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option=option, value="N"
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)
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vote_obj.weight = vote["N"]
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vote_obj.save()
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if poll.pollmethod == AssignmentPoll.POLLMETHOD_YNA:
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vote_obj, _ = AssignmentVote.objects.get_or_create(
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option=option, value="A"
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)
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vote_obj.weight = vote["A"]
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vote_obj.save()
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else:
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raise NotImplementedError(
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f"handle_analog_vote not implemented for {poll.pollmethod}"
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)
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inform_changed_data(option)
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poll.save()
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def validate_vote_data(self, data, poll):
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"""
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Request data:
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analog:
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{
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"options": {<option_id>: {"Y": <amount>, ["N": <amount>], ["A": <amount>] }},
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["votesvalid": <amount>], ["votesinvalid": <amount>], ["votescast": <amount>],
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["amount_global_yes": <amount>],
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["amount_global_no": <amount>],
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["amount_global_abstain": <amount>]
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}
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All amounts are decimals as strings
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required fields per pollmethod:
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- votes: Y
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- YN: YN
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- YNA: YNA
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- N: N
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named|pseudoanonymous:
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votes:
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{<option_id>: <amount>} | 'Y' | 'N' | 'A'
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- Exactly one of the three options must be given
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- 'Y' is only valid if poll.global_yes==True
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- 'N' is only valid if poll.global_no==True
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- 'A' is only valid if poll.global_abstain==True
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- amounts must be integer numbers >= 0.
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- ids should be integers of valid option ids for this poll
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- amounts must be 0 or 1, if poll.allow_multiple_votes_per_candidate is False
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- if an option is not given, 0 is assumed
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- The sum of all amounts must be grater than 0 and <= poll.votes_amount
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YN/YNA:
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{<option_id>: 'Y' | 'N' [|'A']}
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- 'A' is only allowed in YNA pollmethod
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"""
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if poll.type == AssignmentPoll.TYPE_ANALOG:
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if not isinstance(data, dict):
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raise ValidationError({"detail": "Data must be a dict"})
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options_data = data.get("options")
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if not isinstance(options_data, dict):
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raise ValidationError({"detail": "You must provide options"})
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for key, value in options_data.items():
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if not is_int(key):
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raise ValidationError({"detail": "Keys must be int"})
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if not isinstance(value, dict):
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raise ValidationError({"detail": "A dict per option is required"})
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if poll.pollmethod == AssignmentPoll.POLLMETHOD_N:
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value["N"] = self.parse_vote_value(value, "N")
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else:
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value["Y"] = self.parse_vote_value(value, "Y")
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if poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_YN,
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AssignmentPoll.POLLMETHOD_YNA,
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):
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value["N"] = self.parse_vote_value(value, "N")
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if poll.pollmethod == AssignmentPoll.POLLMETHOD_YNA:
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value["A"] = self.parse_vote_value(value, "A")
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for field in ["votesvalid", "votesinvalid", "votescast"]:
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data[field] = self.parse_vote_value(data, field)
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global_yes_enabled = poll.global_yes and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if "amount_global_yes" in data and global_yes_enabled:
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data["amount_global_yes"] = self.parse_vote_value(
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data, "amount_global_yes"
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)
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global_no_enabled = poll.global_no and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if "amount_global_no" in data and global_no_enabled:
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data["amount_global_no"] = self.parse_vote_value(
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data, "amount_global_no"
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)
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global_abstain_enabled = poll.global_abstain and poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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)
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if "amount_global_abstain" in data and global_abstain_enabled:
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data["amount_global_abstain"] = self.parse_vote_value(
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data, "amount_global_abstain"
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)
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else: # non-analog polls
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if isinstance(data, dict) and len(data) == 0:
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raise ValidationError({"details": "Empty ballots are not allowed"})
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available_options = poll.get_options()
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if poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_Y,
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AssignmentPoll.POLLMETHOD_N,
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):
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if isinstance(data, dict):
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amount_sum = 0
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for option_id, amount in data.items():
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if not is_int(option_id):
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raise ValidationError({"detail": "Each id must be an int."})
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if not available_options.filter(id=option_id).exists():
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raise ValidationError(
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{"detail": f"Option {option_id} does not exist."}
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)
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if not is_int(amount):
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raise ValidationError({"detail": "Each amount must be int"})
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amount = int(amount)
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if amount < 0:
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raise ValidationError(
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{"detail": "Negative votes are not allowed"}
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)
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# skip empty votes
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if amount == 0:
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continue
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if not poll.allow_multiple_votes_per_candidate and amount != 1:
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raise ValidationError(
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{"detail": "Multiple votes are not allowed"}
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)
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amount_sum += amount
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if amount_sum > poll.votes_amount:
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raise ValidationError(
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{
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"detail": "You can give a maximum of {0} votes",
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"args": [poll.votes_amount],
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}
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)
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# return, if there is a global vote, because we dont have to check option presence
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elif data == "Y" and poll.global_yes:
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return
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elif data == "N" and poll.global_no:
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return
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elif data == "A" and poll.global_abstain:
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return
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else:
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raise ValidationError({"detail": "invalid data."})
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elif poll.pollmethod in (
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AssignmentPoll.POLLMETHOD_YN,
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AssignmentPoll.POLLMETHOD_YNA,
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):
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if not isinstance(data, dict):
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raise ValidationError({"detail": "Data must be a dict."})
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for option_id, value in data.items():
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if not is_int(option_id):
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raise ValidationError({"detail": "Keys must be int"})
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if not available_options.filter(id=option_id).exists():
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|
raise ValidationError(
|
|
{"detail": f"Option {option_id} does not exist."}
|
|
)
|
|
if (
|
|
poll.pollmethod == AssignmentPoll.POLLMETHOD_YNA
|
|
and value not in ("Y", "N", "A")
|
|
):
|
|
raise ValidationError(
|
|
{"detail": "Every value must be Y, N or A"}
|
|
)
|
|
elif (
|
|
poll.pollmethod == AssignmentPoll.POLLMETHOD_YN
|
|
and value not in ("Y", "N")
|
|
):
|
|
raise ValidationError({"detail": "Every value must be Y or N"})
|
|
|
|
options_data = data
|
|
|
|
def create_votes_type_votes(self, data, poll, vote_weight, vote_user, request_user):
|
|
"""
|
|
Helper function for handle_(named|pseudoanonymous)_vote
|
|
Assumes data is already validated
|
|
vote_user is the user whose vote is given
|
|
request_user is the user who gives the vote, may be a delegate
|
|
"""
|
|
options = poll.get_options()
|
|
if isinstance(data, dict):
|
|
for option_id, amount in data.items():
|
|
# Add user to the option's voted array
|
|
option = options.get(pk=option_id)
|
|
# skip creating votes with empty weights
|
|
if amount == 0:
|
|
continue
|
|
weight = Decimal(amount)
|
|
if config["users_activate_vote_weight"]:
|
|
weight *= vote_weight
|
|
value = "Y" # POLLMETHOD_Y
|
|
if poll.pollmethod == AssignmentPoll.POLLMETHOD_N:
|
|
value = "N"
|
|
vote = AssignmentVote.objects.create(
|
|
option=option,
|
|
user=vote_user,
|
|
delegated_user=request_user,
|
|
weight=weight,
|
|
value=value,
|
|
)
|
|
inform_changed_data(vote, no_delete_on_restriction=True)
|
|
else: # global_no or global_abstain
|
|
option = options[0]
|
|
weight = vote_weight if config["users_activate_vote_weight"] else Decimal(1)
|
|
vote = AssignmentVote.objects.create(
|
|
option=option,
|
|
user=vote_user,
|
|
delegated_user=request_user,
|
|
weight=weight,
|
|
value=data,
|
|
)
|
|
inform_changed_data(vote, no_delete_on_restriction=True)
|
|
inform_changed_data(option)
|
|
inform_changed_data(poll)
|
|
|
|
def create_votes_types_yn_yna(
|
|
self, data, poll, vote_weight, vote_user, request_user
|
|
):
|
|
"""
|
|
Helper function for handle_(named|pseudoanonymous)_vote
|
|
Assumes data is already validated
|
|
vote_user is the user whose vote is given
|
|
request_user is the user who gives the vote, may be a delegate
|
|
"""
|
|
options = poll.get_options()
|
|
weight = vote_weight if config["users_activate_vote_weight"] else Decimal(1)
|
|
for option_id, result in data.items():
|
|
option = options.get(pk=option_id)
|
|
vote = AssignmentVote.objects.create(
|
|
option=option,
|
|
user=vote_user,
|
|
delegated_user=request_user,
|
|
value=result,
|
|
weight=weight,
|
|
)
|
|
inform_changed_data(vote, no_delete_on_restriction=True)
|
|
inform_changed_data(option, no_delete_on_restriction=True)
|
|
|
|
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, vote_user, request_user):
|
|
if poll.pollmethod in (
|
|
AssignmentPoll.POLLMETHOD_Y,
|
|
AssignmentPoll.POLLMETHOD_N,
|
|
):
|
|
self.create_votes_type_votes(
|
|
data, poll, vote_user.vote_weight, vote_user, request_user
|
|
)
|
|
elif poll.pollmethod in (
|
|
AssignmentPoll.POLLMETHOD_YN,
|
|
AssignmentPoll.POLLMETHOD_YNA,
|
|
):
|
|
self.create_votes_types_yn_yna(
|
|
data, poll, vote_user.vote_weight, vote_user, request_user
|
|
)
|
|
else:
|
|
raise NotImplementedError(f"The method {poll.pollmethod} is not supported!")
|
|
|
|
def handle_pseudoanonymous_vote(self, data, poll, user):
|
|
if poll.pollmethod in (
|
|
AssignmentPoll.POLLMETHOD_Y,
|
|
AssignmentPoll.POLLMETHOD_N,
|
|
):
|
|
self.create_votes_type_votes(data, poll, user.vote_weight, None, None)
|
|
elif poll.pollmethod in (
|
|
AssignmentPoll.POLLMETHOD_YN,
|
|
AssignmentPoll.POLLMETHOD_YNA,
|
|
):
|
|
self.create_votes_types_yn_yna(data, poll, user.vote_weight, None, None)
|
|
else:
|
|
raise NotImplementedError(f"The method {poll.pollmethod} is not supported!")
|
|
|
|
def convert_option_data(self, poll, data):
|
|
poll_options = poll.get_options()
|
|
new_option_data = {}
|
|
option_data = data.get("options")
|
|
if option_data is None:
|
|
raise ValidationError({"detail": "You must provide options"})
|
|
for id, val in option_data.items():
|
|
option = poll_options.filter(user_id=id).first()
|
|
if option is None:
|
|
raise ValidationError(
|
|
{"detail": f"Assignment related user with id {id} not found"}
|
|
)
|
|
new_option_data[option.id] = val
|
|
data["options"] = new_option_data
|
|
|
|
|
|
class AssignmentOptionViewSet(BaseOptionViewSet):
|
|
queryset = AssignmentOption.objects.all()
|
|
|
|
def check_view_permissions(self):
|
|
return has_perm(self.request.user, "assignments.can_see")
|
|
|
|
|
|
class AssignmentVoteViewSet(BaseVoteViewSet):
|
|
queryset = AssignmentVote.objects.all()
|
|
|
|
def check_view_permissions(self):
|
|
return has_perm(self.request.user, "assignments.can_see")
|