403 lines
13 KiB
Python
403 lines
13 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.application.models
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Models for the application app.
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:copyright: 2011 by the 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 datetime import datetime
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from django.db import models
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from django.db.models import Max
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from django.contrib.auth.models import User
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from django.utils.translation import ugettext as _
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from openslides.system.api import config_get
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class Application(models.Model):
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STATUS = (
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('pub', _('Published')),
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('per', _('Permitted')),
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('acc', _('Accepted')),
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('rej', _('Rejected')),
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('wit', _('Withdrawed')),
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('adj', _('Adjourned')),
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('noc', _('Not Concerned')),
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('com', _('Commited a bill')),
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('nop', _('Rejected (not permitted)')),
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#additional actions:
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# edit
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# delete
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# setnumber
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# support
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# unsupport
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# createitem
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# genpoll
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)
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submitter = models.ForeignKey(User, verbose_name=_("Submitter"))
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supporter = models.ManyToManyField(User, related_name='supporter', \
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null=True, blank=True, verbose_name=_("Supporters"))
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number = models.PositiveSmallIntegerField(blank=True, null=True,
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unique=True)
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status = models.CharField(max_length=3, choices=STATUS, default='pub')
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permitted = models.ForeignKey('AVersion', related_name='permitted', \
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null=True, blank=True)
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log = models.TextField(blank=True, null=True)
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@property
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def last_version(self):
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"""
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Return last version of the application.
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"""
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try:
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return AVersion.objects.filter(application=self).order_by('id') \
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.reverse()[0]
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except IndexError:
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return None
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@property
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def versions(self):
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"""
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Return a list of all versions of the application.
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"""
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return AVersion.objects.filter(application=self)
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@property
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def creation_time(self):
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"""
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Return the time of the creation of the application.
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"""
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try:
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return self.versions[0].time
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except IndexError:
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return None
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@property
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def notes(self):
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"""
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Return some information of the application.
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"""
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note = []
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if self.status == "pub" and not self.enough_supporters:
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note.append(_("Searching for supporters."))
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if self.status == "pub" and self.permitted is None:
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note.append(_("Not yet permitted."))
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elif self.unpermitted_changes and self.permitted:
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note.append(_("Not yet permitted changes."))
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return note
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@property
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def unpermitted_changes(self):
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"""
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Return True if the application has unpermitted changes.
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The application has unpermitted changes, if the permitted-version
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is not the lastone and the lastone is not abjected.
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TODO: rename the property in unchecked__changes
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"""
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if (self.last_version != self.permitted
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and not self.last_version.abjected):
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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 enough_supporters(self):
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"""
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Return True, if the application has enough supporters
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"""
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min_supporters = int(config_get('application_min_supporters'))
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return self.supporter.count() >= min_supporters
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def save(self, user=None):
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"""
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Save the Application, and create a new AVersion if necessary
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"""
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super(Application, self).save()
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last_version = self.last_version
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if last_version is not None:
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if (last_version.text == self.text
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and last_version.title == self.title
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and last_version.reason == self.reason):
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return # No changes
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try:
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if self.title != "":
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version = AVersion(title=getattr(self, 'title', ''),
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text=getattr(self, 'text', ''),
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reason=getattr(self, 'reason', ''),
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application=self)
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version.save()
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self.writelog(_("Version %s created") % version.aid, user)
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is_manager = user.has_perm('application.can_manage_application')
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except AttributeError:
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is_manager = False
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if (self.status == "pub"
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and self.supporter.exists()
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and not is_manager):
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self.supporter.clear()
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self.writelog(_("Supporters removed"), user)
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def reset(self, user):
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"""
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Reset the application.
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"""
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self.status = "pub"
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self.permitted = None
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self.save()
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self.writelog(_("Status reseted to: %s") % (self.get_status_display()), user)
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def support(self, user):
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"""
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Add a Supporter to the list of supporters of the application.
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"""
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if user == self.submitter:
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raise NameError('Supporter can not be the submitter of a ' \
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'application.')
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if self.permitted is not None:
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raise NameError('This application is already permitted.')
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if user not in self.supporter.all():
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self.supporter.add(user)
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self.writelog(_("Supporter: +%s") % (user))
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def unsupport(self, user):
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"""
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remove a supporter from the list of supporters of the application
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"""
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if self.permitted is not None:
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raise NameError('This application is already permitted.')
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if user in self.supporter.all():
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self.supporter.remove(user)
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self.writelog(_("Supporter: -%s") % (user))
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def set_number(self, number=None, user=None):
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"""
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Set a number for ths application.
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"""
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if self.number is not None:
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raise NameError('This application has already a number.')
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if number is None:
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try:
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number = Application.objects.aggregate(Max('number')) \
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['number__max'] + 1
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except TypeError:
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number = 1
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self.number = number
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self.save()
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self.writelog(_("Number set: %s") % (self.number), user)
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return self.number
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def permit(self, user=None):
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"""
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Change the status of this application to permit.
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"""
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self.set_status(user, "per")
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aversion = self.last_version
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if self.number is None:
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self.set_number()
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self.permitted = aversion
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self.save()
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self.writelog(_("Version %s permitted") % (aversion.aid), user)
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return self.permitted
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def notpermit(self, user=None):
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"""
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Change the status of this application to 'not permitted (rejected)'.
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"""
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self.set_status(user, "nop")
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#TODO: reject last version
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aversion = self.last_version
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#self.permitted = aversion
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if self.number is None:
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self.set_number()
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self.save()
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self.writelog(_("Version %s not permitted") % (self.last_version.aid), user)
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def set_status(self, user, status, force=False):
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"""
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Set the status of the application.
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"""
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error = True
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for a, b in Application.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 application status is already %s.' \
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% self.status)
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actions = []
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actions = self.get_allowed_actions(user)
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if status not in actions and not force:
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raise NameError('The application status is: %s. You can not set' \
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' the status to %s.' % (self.status, status))
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oldstatus = self.get_status_display()
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self.status = status
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self.save()
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self.writelog(_("Status modified")+": %s -> %s" \
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% (oldstatus, self.get_status_display()), user)
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def get_allowed_actions(self, user=None):
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"""
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Return a list of all the allowed status.
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"""
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actions = []
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# check if user allowed to withdraw an application
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if (self.status == "pub"
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and self.number \
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and user == self.submitter) \
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or (self.status == "pub" \
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and self.number \
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and user.has_perm("application.can_manage_application")) \
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or (self.status == "per" \
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and user == self.submitter) \
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or (self.status == "per" \
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and user.has_perm("application.can_manage_application")):
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actions.append("wit")
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# Check if the user can support and unspoort the application
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if self.status == "pub" \
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and user != self.submitter \
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and user not in self.supporter.all():
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actions.append("support")
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if self.status == "pub" and user in self.supporter.all():
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actions.append("unsupport")
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#Check if the user can edit the application
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if user == self.submitter \
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or user.has_perm("application.can_manage_application"):
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actions.append("edit")
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#Check if the user can delete the application
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if self.number is None \
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and self.status == "pub" \
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and (self.submitter == user \
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or user.has_perm("application.can_manage_application")):
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actions.append("delete")
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#For the rest, all actions need the manage permission
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if not user.has_perm("application.can_manage_application"):
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return actions
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if self.status == "pub":
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actions.append("nop")
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actions.append("per")
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if self.number == None:
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actions.append("setnumber")
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if self.status == "per":
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actions.append("acc")
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actions.append("rej")
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actions.append("adj")
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actions.append("noc")
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actions.append("com")
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actions.append("genpoll")
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if self.unpermitted_changes:
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actions.append("permitversion")
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actions.append("rejectversion")
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if self.number and not self.itemapplication_set.all():
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actions.append("createitem")
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return actions
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def delete(self, force=False):
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"""
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Delete the application. It is not possible, if the application has
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allready a number
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"""
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if self.number and not force:
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raise NameError('The application has already a number. ' \
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'You can not delete it.')
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super(Application, self).delete()
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def writelog(self, text, user=None):
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if not self.log:
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self.log = ""
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self.log += u"%s | %s" % (datetime.now().strftime("%d.%m.%Y %H:%M:%S"), text)
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if user is not None:
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self.log += u" (by %s)" % (user.username)
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self.log += "\n"
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self.save()
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def __getattr__(self, name):
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"""
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if name is title, text, reason or time,
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Return this attribute from the newest version of the application
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"""
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if name in ('title', 'text', 'reason', 'time'):
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try:
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return self.last_version.__dict__[name]
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except TypeError:
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raise AttributeError(name)
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except AttributeError:
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raise AttributeError(name)
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raise AttributeError(name)
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def gen_poll(self, user=None):
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"""
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Generates a poll object for the application
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"""
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from poll.models import Poll
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poll = Poll(optiondecision=True, \
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application=self)
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poll.save()
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poll.add_option(self)
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self.writelog(_("Poll created"), user)
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return poll
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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 ('application_view', [str(self.id)])
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if link == 'delete':
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return ('application_delete', [str(self.id)])
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def __unicode__(self):
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try:
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return self.last_version.title
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except AttributeError:
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return "no title jet"
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class Meta:
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permissions = (
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('can_view_application', _("Can see applications")),
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('can_insert_application', _("Can insert new applications")),
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('can_support_application', _("Can support applications")),
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('can_manage_application', _("Can manage applications")),
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)
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class AVersion(models.Model):
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title = models.CharField(max_length=100)
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text = models.TextField()
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reason = models.TextField(null=True, blank=True)
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abjected = models.BooleanField()
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time = models.DateTimeField(auto_now=True)
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application = models.ForeignKey(Application)
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def __unicode__(self):
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return "%s %s" % (self.id, self.title)
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@property
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def aid(self):
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try:
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return self._aid
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except AttributeError:
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self._aid = AVersion.objects \
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.filter(application=self.application) \
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.filter(id__lte=self.id).count()
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return self._aid
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