124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
from django.conf import settings
|
|
|
|
from ..utils.auth import get_group_model
|
|
from ..utils.rest_api import (
|
|
CharField,
|
|
DecimalField,
|
|
IdPrimaryKeyRelatedField,
|
|
ModelSerializer,
|
|
SerializerMethodField,
|
|
ValidationError,
|
|
)
|
|
from .models import BasePoll
|
|
|
|
|
|
BASE_VOTE_FIELDS = ("id", "weight", "value", "user", "option", "pollstate")
|
|
|
|
|
|
class BaseVoteSerializer(ModelSerializer):
|
|
pollstate = SerializerMethodField()
|
|
|
|
def get_pollstate(self, vote):
|
|
return vote.option.poll.state
|
|
|
|
|
|
BASE_OPTION_FIELDS = ("id", "yes", "no", "abstain")
|
|
|
|
|
|
class BaseOptionSerializer(ModelSerializer):
|
|
yes = DecimalField(max_digits=15, decimal_places=6, min_value=-2, read_only=True)
|
|
no = DecimalField(max_digits=15, decimal_places=6, min_value=-2, read_only=True)
|
|
abstain = DecimalField(
|
|
max_digits=15, decimal_places=6, min_value=-2, read_only=True
|
|
)
|
|
|
|
|
|
BASE_POLL_FIELDS = (
|
|
"state",
|
|
"type",
|
|
"title",
|
|
"groups",
|
|
"votesvalid",
|
|
"votesinvalid",
|
|
"votescast",
|
|
"options",
|
|
"voted",
|
|
"id",
|
|
"onehundred_percent_base",
|
|
"majority_method",
|
|
)
|
|
|
|
|
|
class BasePollSerializer(ModelSerializer):
|
|
title = CharField(allow_blank=False, required=True)
|
|
groups = IdPrimaryKeyRelatedField(
|
|
many=True, required=False, queryset=get_group_model().objects.all()
|
|
)
|
|
voted = IdPrimaryKeyRelatedField(many=True, read_only=True)
|
|
|
|
votesvalid = DecimalField(
|
|
max_digits=15, decimal_places=6, min_value=-2, read_only=True
|
|
)
|
|
votesinvalid = DecimalField(
|
|
max_digits=15, decimal_places=6, min_value=-2, read_only=True
|
|
)
|
|
votescast = DecimalField(
|
|
max_digits=15, decimal_places=6, min_value=-2, read_only=True
|
|
)
|
|
|
|
def create(self, validated_data):
|
|
"""
|
|
Match the 100 percent base to the pollmethod. Change the base, if it does not
|
|
fit to the pollmethod
|
|
"""
|
|
new_100_percent_base = self.norm_100_percent_base_to_pollmethod(
|
|
validated_data["onehundred_percent_base"], validated_data["pollmethod"]
|
|
)
|
|
if new_100_percent_base is not None:
|
|
validated_data["onehundred_percent_base"] = new_100_percent_base
|
|
return super().create(validated_data)
|
|
|
|
def update(self, instance, validated_data):
|
|
"""
|
|
Adjusts the 100%-base to the pollmethod. This might be needed,
|
|
if at least one of them was changed. Wrong combinations should be
|
|
also handled by the client, but here we make it sure aswell!
|
|
|
|
E.g. the pollmethod is YN, but the 100%-base is YNA, this might not be
|
|
possible (see implementing serializers to see forbidden combinations)
|
|
"""
|
|
old_100_percent_base = instance.onehundred_percent_base
|
|
instance = super().update(instance, validated_data)
|
|
|
|
new_100_percent_base = self.norm_100_percent_base_to_pollmethod(
|
|
instance.onehundred_percent_base, instance.pollmethod, old_100_percent_base
|
|
)
|
|
if new_100_percent_base is not None:
|
|
instance.onehundred_percent_base = new_100_percent_base
|
|
instance.save()
|
|
|
|
return instance
|
|
|
|
def validate(self, data):
|
|
"""
|
|
Check that the given polltype is allowed.
|
|
"""
|
|
# has to be called in function instead of globally to enable tests to change the setting
|
|
ENABLE_ELECTRONIC_VOTING = getattr(settings, "ENABLE_ELECTRONIC_VOTING", False)
|
|
if (
|
|
"type" in data
|
|
and data["type"] != BasePoll.TYPE_ANALOG
|
|
and not ENABLE_ELECTRONIC_VOTING
|
|
):
|
|
raise ValidationError(
|
|
{
|
|
"detail": "Electronic voting is disabled. Only analog polls are allowed"
|
|
}
|
|
)
|
|
return data
|
|
|
|
def norm_100_percent_base_to_pollmethod(
|
|
self, onehundred_percent_base, pollmethod, old_100_percent_base=None
|
|
):
|
|
raise NotImplementedError()
|