OpenSlides/openslides/application/models.py

587 lines
19 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.application.models
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Models for the application app.
:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from datetime import datetime
from django.contrib.auth.models import User
from django.core.urlresolvers import reverse
from django.db import models
from django.db.models import Max
from django.dispatch import receiver
from django.utils.translation import pgettext
from django.utils.translation import ugettext_lazy as _, ugettext_noop
from openslides.utils.utils import _propper_unicode
from openslides.config.models import config
from openslides.config.signals import default_config_value
from openslides.participant.models import Profile
from openslides.poll.models import (BaseOption, BasePoll, CountVotesCast,
CountInvalid, BaseVote)
from openslides.projector.api import register_slidemodel
from openslides.projector.models import SlideMixin
from openslides.agenda.models import Item
class Application(models.Model, SlideMixin):
prefix = "application"
STATUS = (
('pub', _('Published')),
('per', _('Permitted')),
('acc', _('Accepted')),
('rej', _('Rejected')),
('wit', _('Withdrawed')),
('adj', _('Adjourned')),
('noc', _('Not Concerned')),
('com', _('Commited a bill')),
('nop', _('Rejected (not permitted)')),
('rev', _('Needs Review')), # Where is this status used?
#additional actions:
# edit
# delete
# setnumber
# support
# unsupport
# createitem
# activateitem
# genpoll
)
submitter = models.ForeignKey(User, verbose_name=_("Submitter"))
supporter = models.ManyToManyField(User, related_name='supporter', \
null=True, blank=True, verbose_name=_("Supporters"))
number = models.PositiveSmallIntegerField(blank=True, null=True,
unique=True)
status = models.CharField(max_length=3, choices=STATUS, default='pub')
permitted = models.ForeignKey('AVersion', related_name='permitted', \
null=True, blank=True)
log = models.TextField(blank=True, null=True)
@property
def last_version(self):
"""
Return last version of the application.
"""
try:
return AVersion.objects.filter(application=self).order_by('id') \
.reverse()[0]
except IndexError:
return None
@property
def public_version(self):
"""
Return permitted, if the application was permitted, else last_version
"""
if self.permitted is not None:
return self.permitted
else:
return self.last_version
def accept_version(self, version, user = None):
"""
accept a Version
"""
self.permitted = version
self.save(nonewversion=True)
version.rejected = False
version.save()
self.writelog(_("Version %d permitted") % (version.aid, ),
user)
def reject_version(self, version, user = None):
if version.id > self.permitted.id:
version.rejected = True
version.save()
self.writelog(pgettext("Rejected meens not permittd", "Version %d rejected")
% (version.aid, ), user)
return True
return False
@property
def versions(self):
"""
Return a list of all versions of the application.
"""
return AVersion.objects.filter(application=self)
@property
def creation_time(self):
"""
Return the time of the creation of the application.
"""
try:
return self.versions[0].time
except IndexError:
return None
@property
def notes(self):
"""
Return some information of the application.
"""
note = []
if self.status == "pub" and not self.enough_supporters:
note.append(_("Searching for supporters."))
if self.status == "pub" and self.permitted is None:
note.append(_("Not yet permitted."))
elif self.unpermitted_changes and self.permitted:
note.append(_("Not yet permitted changes."))
return note
@property
def unpermitted_changes(self):
"""
Return True if the application has unpermitted changes.
The application has unpermitted changes, if the permitted-version
is not the lastone and the lastone is not rejected.
TODO: rename the property in unchecked__changes
"""
if (self.last_version != self.permitted
and not self.last_version.rejected):
return True
else:
return False
@property
def enough_supporters(self):
"""
Return True, if the application has enough supporters
"""
min_supporters = int(config['application_min_supporters'])
if self.status == "pub":
return self.supporter.count() >= min_supporters
else:
return True
@property
def missing_supporters(self):
"""
Return number of missing supporters
"""
min_supporters = int(config['application_min_supporters'])
delta = min_supporters - self.supporter.count()
if delta > 0:
return delta
else:
return 0
def save(self, user=None, nonewversion=False, trivial_change=False):
"""
Save the Application, and create a new AVersion if necessary
"""
super(Application, self).save()
if nonewversion:
return
last_version = self.last_version
fields = ["text", "title", "reason"]
if last_version is not None:
changed_fields = [f for f in fields
if getattr(last_version, f) != getattr(self, f)]
if not changed_fields:
return # No changes
try:
if trivial_change and last_version is not None:
last_version.text = self.text
last_version.title = self.title
last_version.reason = self.reason
last_version.save()
meta = AVersion._meta
field_names = [unicode(meta.get_field(f).verbose_name)
for f in changed_fields]
self.writelog(_("Trivial changes to version %(version)d; "
"changed fields: %(changed_fields)s")
% dict(version = last_version.aid,
changed_fields = ", ".join(field_names)))
return # Done
version = AVersion(title=getattr(self, 'title', ''),
text=getattr(self, 'text', ''),
reason=getattr(self, 'reason', ''),
application=self)
version.save()
self.writelog(_("Version %s created") % version.aid, user)
is_manager = user.has_perm('application.can_manage_application')
except AttributeError:
is_manager = False
if (self.status == "pub"
and self.supporter.exists()
and not is_manager):
self.supporter.clear()
self.writelog(_("Supporters removed"), user)
def reset(self, user):
"""
Reset the application.
"""
self.status = "pub"
self.permitted = None
self.save()
self.writelog(_("Status reseted to: %s") % (self.get_status_display()), user)
def support(self, user):
"""
Add a Supporter to the list of supporters of the application.
"""
if user == self.submitter:
raise NameError('Supporter can not be the submitter of a ' \
'application.')
if self.permitted is not None:
raise NameError('This application is already permitted.')
if user not in self.supporter.all():
self.supporter.add(user)
self.writelog(_("Supporter: +%s") % (user))
def unsupport(self, user):
"""
remove a supporter from the list of supporters of the application
"""
if self.permitted is not None:
raise NameError('This application is already permitted.')
if user in self.supporter.all():
self.supporter.remove(user)
self.writelog(_("Supporter: -%s") % (user))
def set_number(self, number=None, user=None):
"""
Set a number for ths application.
"""
if self.number is not None:
raise NameError('This application has already a number.')
if number is None:
try:
number = Application.objects.aggregate(Max('number')) \
['number__max'] + 1
except TypeError:
number = 1
self.number = number
self.save()
self.writelog(_("Number set: %s") % (self.number), user)
return self.number
def permit(self, user=None):
"""
Change the status of this application to permit.
"""
self.set_status(user, "per")
aversion = self.last_version
if self.number is None:
self.set_number()
self.permitted = aversion
self.save()
self.writelog(_("Version %s permitted") % (aversion.aid), user)
return self.permitted
def notpermit(self, user=None):
"""
Change the status of this application to 'not permitted (rejected)'.
"""
self.set_status(user, "nop")
#TODO: reject last version
aversion = self.last_version
#self.permitted = aversion
if self.number is None:
self.set_number()
self.save()
self.writelog(_("Version %s not permitted") % (self.last_version.aid), user)
def set_status(self, user, status, force=False):
"""
Set the status of the application.
"""
error = True
for a, b in Application.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 application status is already %s.' \
% self.status)
actions = []
actions = self.get_allowed_actions(user)
if status not in actions and not force:
raise NameError('The application status is: %s. You can not set' \
' the status to %s.' % (self.status, status))
oldstatus = self.get_status_display()
self.status = status
self.save()
self.writelog(_("Status modified")+": %s -> %s" \
% (oldstatus, self.get_status_display()), user)
def get_allowed_actions(self, user=None):
"""
Return a list of all the allowed status.
"""
actions = []
is_admin = False
if user:
try:
user.profile
except Profile.DoesNotExist:
is_admin = True
# check if user allowed to withdraw an application
if ((self.status == "pub"
and self.number
and user == self.submitter)
or (self.status == "pub"
and self.number
and user.has_perm("application.can_manage_application"))
or (self.status == "per"
and user == self.submitter)
or (self.status == "per"
and user.has_perm("application.can_manage_application"))):
actions.append("wit")
#Check if the user can review the application
if (self.status == "rev"
and (self.submitter == user
or user.has_perm("application.can_manage_application"))):
actions.append("pub")
# Check if the user can support and unspoort the application
try:
if (self.status == "pub"
and user != self.submitter
and user not in self.supporter.all()
and getattr(user, 'profile', None)):
actions.append("support")
except Profile.DoesNotExist:
pass
if self.status == "pub" and user in self.supporter.all():
actions.append("unsupport")
#Check if the user can edit the application
if (user == self.submitter \
and (self.status in ('pub', 'per'))) \
or user.has_perm("application.can_manage_application"):
actions.append("edit")
# Check if the user can delete the application (admin, manager, owner)
# reworked as requiered in #100
if is_admin \
or (user.has_perm("application.can_manage_application") \
and (self.status == "pub" or self.number is None)) \
or (self.submitter == user \
and (self.status == "pub" or self.number is None)):
actions.append("delete")
#For the rest, all actions need the manage permission
if not user.has_perm("application.can_manage_application"):
return actions
if self.status == "pub":
actions.append("nop")
actions.append("per")
if self.number == None:
actions.append("setnumber")
if self.status == "per":
actions.append("acc")
actions.append("rej")
actions.append("adj")
actions.append("noc")
actions.append("com")
actions.append("genpoll")
if self.unpermitted_changes:
actions.append("permitversion")
actions.append("rejectversion")
return actions
def delete(self, force=False):
"""
Delete the application. It is not possible, if the application has
allready a number
"""
if self.number and not force:
raise NameError('The application has already a number. ' \
'You can not delete it.')
for item in Item.objects.filter(related_sid=self.sid):
item.delete()
super(Application, self).delete()
def writelog(self, text, user=None):
if not self.log:
self.log = ""
self.log += u"%s | %s" % (datetime.now().strftime("%d.%m.%Y %H:%M:%S"), _propper_unicode(text))
if user is not None:
self.log += u" (%s %s)" % (_("by"), _propper_unicode(user.username))
self.log += "\n"
self.save()
def get_agenda_title(self):
return self.public_version.title
def __getattr__(self, name):
"""
if name is title, text, reason or time,
Return this attribute from the newest version of the application
"""
if name in ('title', 'text', 'reason', 'time', 'aid'):
try:
if name == 'aid':
return self.last_version.aid
return self.last_version.__dict__[name]
except TypeError:
raise AttributeError(name)
except AttributeError:
raise AttributeError(name)
raise AttributeError(name)
def gen_poll(self, user=None):
"""
Generates a poll object for the application
"""
poll = ApplicationPoll(application=self)
poll.save()
poll.set_options()
self.writelog(_("Poll created"), user)
return poll
@property
def polls(self):
return self.applicationpoll_set.all()
@property
def results(self):
return self.get_poll_results()
def get_poll_results(self):
"""
Return a list of voting results
"""
results = []
for poll in self.polls:
for option in poll.get_options():
if option.get_votes().exists():
results.append((option.Yes, option.No, option.Abstain, poll.print_votesinvalid(), poll.print_votescast()))
return results
def slide(self):
"""
return the slide dict
"""
data = super(Application, self).slide()
data['application'] = self
data['title'] = self.title
data['template'] = 'projector/Application.html'
return data
def get_absolute_url(self, link='view'):
if link == 'view':
return reverse('application_view', args=[str(self.id)])
if link == 'edit':
return reverse('application_edit', args=[str(self.id)])
if link == 'delete':
return reverse('application_delete', args=[str(self.id)])
def __unicode__(self):
try:
return self.last_version.title
except AttributeError:
return "no title jet"
class Meta:
permissions = (
('can_see_application', ugettext_noop("Can see application")),
('can_create_application', ugettext_noop("Can create application")),
('can_support_application', ugettext_noop("Can support application")),
('can_manage_application', ugettext_noop("Can manage application")),
)
class AVersion(models.Model):
title = models.CharField(max_length=100, verbose_name = _("Title"))
text = models.TextField(verbose_name = _("Text"))
reason = models.TextField(null=True, blank=True, verbose_name = _("Reason"))
rejected = models.BooleanField() # = Not Permitted
time = models.DateTimeField(auto_now=True)
application = models.ForeignKey(Application)
def __unicode__(self):
return "%s %s" % (self.id, self.title)
@property
def aid(self):
try:
return self._aid
except AttributeError:
self._aid = AVersion.objects \
.filter(application=self.application) \
.filter(id__lte=self.id).count()
return self._aid
register_slidemodel(Application)
class ApplicationVote(BaseVote):
option = models.ForeignKey('ApplicationOption')
class ApplicationOption(BaseOption):
poll = models.ForeignKey('ApplicationPoll')
vote_class = ApplicationVote
class ApplicationPoll(BasePoll, CountInvalid, CountVotesCast):
option_class = ApplicationOption
vote_values = [ugettext_noop('Yes'), ugettext_noop('No'),
ugettext_noop('Abstain')]
application = models.ForeignKey(Application)
def get_application(self):
return self.application
def set_options(self):
#TODO: maybe it is possible with .create() to call this without poll=self
self.get_option_class()(poll=self).save()
def append_pollform_fields(self, fields):
CountInvalid.append_pollform_fields(self, fields)
CountVotesCast.append_pollform_fields(self, fields)
def get_absolute_url(self):
return reverse('application_poll_view', args=[self.id])
def get_ballot(self):
return self.application.applicationpoll_set.filter(id__lte=self.id).count()
@receiver(default_config_value, dispatch_uid="application_default_config")
def default_config(sender, key, **kwargs):
return {
'application_min_supporters': 0,
'application_preamble': _('The Assembly may decide,'),
'application_pdf_ballot_papers_selection': 'CUSTOM_NUMBER',
'application_pdf_ballot_papers_number': '8',
'application_pdf_title': _('Applications'),
'application_pdf_preamble': '',
'application_allow_trivial_change': False,
}.get(key)