OpenSlides/openslides/assignment/models.py

110 lines
3.4 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.assignment.models
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Models for the assignment app.
:copyright: 2011 by the OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from django.db import models
from django.utils.translation import ugettext as _
from participant.models import Profile
class Assignment(models.Model):
STATUS = (
('sea', _('Searching for candidates')),
('vot', _('Voting')),
('fin', _('Finished')),
)
name = models.CharField(max_length=100, verbose_name = _("Name"))
description = models.TextField(null=True, blank=True, verbose_name = _("Description"))
posts = models.PositiveSmallIntegerField(verbose_name = _("Number of available posts"))
polldescription = models.CharField(max_length=50, null=True, blank=True, verbose_name = _("Short description (for ballot paper)"))
profile = models.ManyToManyField(Profile, null=True, blank=True)
status = models.CharField(max_length=1, choices=STATUS, default='sea')
def set_status(self, status):
error = True
for a, b in Assignment.STATUS:
if status == a:
error = False
break
if error:
raise NameError(_('%s is not a valid status.') % status)
if self.status == status:
raise NameError(_('The assignment status is already %s.') % self.status)
self.status = status
self.save()
def run(self, profile):
"""
run for a vote
"""
if self.is_candidate(profile):
raise NameError(_('<b>%s</b> is already a candidate.') % profile)
self.profile.add(profile)
def delrun(self, profile):
"""
stop running for a vote
"""
if self.is_candidate(profile):
self.profile.remove(profile)
else:
raise NameError(_('%s is no candidate') % profile)
def is_candidate(self, profile):
if profile in self.profile.get_query_set():
return True
else:
return False
def gen_poll(self):
from poll.models import Poll
poll = Poll()
# Option A: candidates <= available posts -> yes/no/abstention
if self.profile.count() <= self.posts:
poll.optiondecision = True
else:
poll.optiondecision = False
# Option B: candidates == 1 -> yes/no/abstention
#if self.profile.count() == 1:
# poll.optiondecision = True
#else:
# poll.optiondecision = False
poll.assignment = self
poll.description = self.polldescription
poll.save()
for profile in self.profile.get_query_set():
poll.add_option(profile)
return poll
@models.permalink
def get_absolute_url(self, link='view'):
if link == 'view':
return ('assignment_view', [str(self.id)])
if link == 'delete':
return ('assignment_delete', [str(self.id)])
def __unicode__(self):
return self.name
class Meta:
permissions = (
('can_view_assignment', "Can see the assignments"),
('can_nominate_other', "Can nominate another person"
" for a election"),
('can_nominate_self', "Can nominate hisself for a election"),
('can_manage_assignment', "Can manage assignments"),
)