265 lines
8.6 KiB
Python
265 lines
8.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.assignment.models
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Models for the assignment app.
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:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
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:license: GNU GPL, see LICENSE for more details.
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"""
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from django.core.urlresolvers import reverse
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from django.db import models
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from django.dispatch import receiver
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from django.utils.translation import ugettext_lazy as _, ugettext_noop
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from openslides.config.models import config
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from openslides.config.signals import default_config_value
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from openslides.projector.api import register_slidemodel
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from openslides.projector.projector import SlideMixin
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from openslides.participant.models import Profile
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from openslides.poll.models import (BasePoll, CountInvalid, CountVotesCast,
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BaseOption, PublishPollMixin)
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from openslides.agenda.models import Item
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class Assignment(models.Model, SlideMixin):
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prefix = 'assignment'
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STATUS = (
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('sea', _('Searching for candidates')),
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('vot', _('Voting')),
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('fin', _('Finished')),
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)
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name = models.CharField(max_length=100, verbose_name=_("Name"))
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description = models.TextField(null=True, blank=True,
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verbose_name=_("Description"))
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posts = models.PositiveSmallIntegerField(
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verbose_name=_("Number of available posts"))
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polldescription = models.CharField(max_length=100, null=True, blank=True,
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verbose_name=_("Short description (for ballot paper)"))
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profile = models.ManyToManyField(Profile, null=True, blank=True)
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elected = models.ManyToManyField(Profile, null=True, blank=True,
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related_name='elected_set')
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status = models.CharField(max_length=3, choices=STATUS, default='sea')
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def set_status(self, status):
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error = True
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for a, b in Assignment.STATUS:
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if status == a:
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error = False
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break
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if error:
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raise NameError(_('%s is not a valid status.') % status)
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if self.status == status:
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raise NameError(_('The assignment status is already %s.')
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% self.status)
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self.status = status
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self.save()
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def run(self, profile):
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"""
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run for a vote
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"""
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if self.is_candidate(profile):
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raise NameError(_('<b>%s</b> is already a candidate.') % profile)
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self.profile.add(profile)
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def delrun(self, profile):
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"""
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stop running for a vote
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"""
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if self.is_candidate(profile):
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self.profile.remove(profile)
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self.elected.remove(profile)
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else:
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raise NameError(_('%s is no candidate') % profile)
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def is_candidate(self, profile):
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if profile in self.profile.get_query_set():
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return True
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else:
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return False
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@property
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def candidates(self):
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return self.profile.get_query_set()
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def set_elected(self, profile, value=True):
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if profile in self.candidates:
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if value and not self.is_elected(profile):
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self.elected.add(profile)
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elif not value:
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self.elected.remove(profile)
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def is_elected(self, profile):
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if profile in self.elected.all():
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return True
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return False
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def gen_poll(self):
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poll = AssignmentPoll(assignment=self)
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poll.save()
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candidates = list(self.profile.all())
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for elected in self.elected.all():
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try:
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candidates.remove(elected)
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except ValueError:
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pass
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poll.set_options([{'candidate': profile} for profile in candidates])
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return poll
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def vote_results(self, only_published):
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"""
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returns a table represented as a list with all candidates from all
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related polls and their vote results.
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"""
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vote_results_dict = {}
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# All polls related to this assigment
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polls = self.poll_set.all()
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if only_published:
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polls = polls.filter(published=True)
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# All PollOption-Objects related to this assignment
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options = []
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for poll in polls:
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options += poll.get_options()
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for option in options:
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candidate = option.candidate
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if candidate in vote_results_dict:
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continue
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vote_results_dict[candidate] = []
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for poll in polls:
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votes = {}
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try:
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# candidate related to this poll
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poll_option = poll.get_options().get(candidate=candidate)
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for vote in poll_option.get_votes():
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votes[vote.value] = vote.get_weight()
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except AssignmentOption.DoesNotExist:
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# candidate not in related to this poll
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votes = None
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vote_results_dict[candidate].append(votes)
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return vote_results_dict
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def get_agenda_title(self):
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return self.name
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def delete(self):
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for item in Item.objects.filter(related_sid=self.sid):
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item.delete()
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super(Assignment, self).delete()
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def slide(self):
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"""
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return the slide dict
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"""
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data = super(Assignment, self).slide()
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data['assignment'] = self
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data['title'] = self.name
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data['polls'] = self.poll_set.filter(published=True)
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data['vote_results'] = self.vote_results(only_published=True)
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data['assignment_publish_winner_results_only'] = \
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config['assignment_publish_winner_results_only']
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data['template'] = 'projector/Assignment.html'
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return data
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def get_absolute_url(self, link='view'):
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if link == 'view':
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return reverse('assignment_view', args=[str(self.id)])
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if link == 'edit':
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return reverse('assignment_edit', args=[str(self.id)])
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if link == 'delete':
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return reverse('assignment_delete', args=[str(self.id)])
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def __unicode__(self):
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return self.name
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class Meta:
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permissions = (
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('can_see_assignment', ugettext_noop("Can see assignment")),
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('can_nominate_other',
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ugettext_noop("Can nominate another person")),
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('can_nominate_self', ugettext_noop("Can nominate themselves")),
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('can_manage_assignment', ugettext_noop("Can manage assignment")),
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)
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register_slidemodel(Assignment)
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class AssignmentOption(BaseOption):
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candidate = models.ForeignKey(Profile)
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def __unicode__(self):
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return unicode(self.candidate)
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class AssignmentPoll(BasePoll, CountInvalid, CountVotesCast, PublishPollMixin):
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option_class = AssignmentOption
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assignment = models.ForeignKey(Assignment, related_name='poll_set')
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yesnoabstain = models.NullBooleanField()
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def get_assignment(self):
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return self.assignment
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def get_vote_values(self):
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if self.yesnoabstain is None:
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if config['assignment_poll_vote_values'] == 'votes':
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self.yesnoabstain = False
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elif config['assignment_poll_vote_values'] == 'yesnoabstain':
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self.yesnoabstain = True
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else:
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# candidates <= available posts -> yes/no/abstain
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if self.assignment.candidates.count() <= (self.assignment.posts
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- self.assignment.elected.count()):
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self.yesnoabstain = True
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else:
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self.yesnoabstain = False
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self.save()
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if self.yesnoabstain:
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return [ugettext_noop('Yes'), ugettext_noop('No'),
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ugettext_noop('Abstain')]
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else:
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return [ugettext_noop('Votes')]
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def append_pollform_fields(self, fields):
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CountInvalid.append_pollform_fields(self, fields)
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CountVotesCast.append_pollform_fields(self, fields)
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def get_ballot(self):
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return self.assignment.poll_set.filter(id__lte=self.id).count()
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@models.permalink
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def get_absolute_url(self, link='view'):
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if link == 'view':
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return ('assignment_poll_view', [str(self.id)])
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if link == 'delete':
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return ('assignment_poll_delete', [str(self.id)])
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def __unicode__(self):
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return _("Ballot %d") % self.get_ballot()
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@receiver(default_config_value, dispatch_uid="assignment_default_config")
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def default_config(sender, key, **kwargs):
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return {
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'assignment_publish_winner_results_only': False,
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'assignment_pdf_ballot_papers_selection': 'CUSTOM_NUMBER',
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'assignment_pdf_ballot_papers_number': '8',
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'assignment_pdf_title': _('Elections'),
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'assignment_pdf_preamble': '',
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'assignment_poll_vote_values': 'auto',
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}.get(key)
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