OpenSlides/openslides/config/models.py

134 lines
3.5 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.config.models
~~~~~~~~~~~~~~~~~~~~~~~~
Models for the config app.
:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from django.conf import settings
from django.core.urlresolvers import reverse
from django.db import models
from django.dispatch import receiver
from django.utils.importlib import import_module
from django.utils.translation import ugettext_lazy as _, ugettext_noop
from openslides.utils.jsonfield import JSONField
from openslides.utils.signals import template_manipulation
from openslides.config.signals import default_config_value
class ConfigStore(models.Model):
"""
Stores the config values.
"""
key = models.CharField(max_length=100, primary_key=True)
value = JSONField()
def __unicode__(self):
return self.key
class Meta:
verbose_name = 'config'
permissions = (
('can_manage_config', ugettext_noop("Can manage configuration")),
)
class Config(object):
"""
Access the config values via config[...]
"""
def __getitem__(self, key):
try:
return ConfigStore.objects.get(key=key).value
except ConfigStore.DoesNotExist:
pass
for receiver, value in default_config_value.send(sender='config',
key=key):
if value is not None:
return value
if settings.DEBUG:
print "No default value for: %s" % key
return None
def __setitem__(self, key, value):
try:
c = ConfigStore.objects.get(pk=key)
except ConfigStore.DoesNotExist:
c = ConfigStore(pk=key)
c.value = value
c.save()
def __contains__(self, item):
return ConfigStore.objects.filter(key=item).exists()
config = Config()
@receiver(default_config_value, dispatch_uid="config_default_config")
def default_config(sender, key, **kwargs):
"""
Global default values.
"""
return {
'event_name': 'OpenSlides',
'event_description':
_('Presentation and assembly system'),
'event_date': '',
'event_location': '',
'event_organizer': '',
'presentation': '',
'welcome_title': _('Welcome to OpenSlides'),
'welcome_text': _('[Place for your welcome text.]'),
'system_enable_anonymous': False,
}.get(key)
@receiver(template_manipulation, dispatch_uid="config_submenu")
def set_submenu(sender, request, context, **kwargs):
"""
Submenu for the config tab.
"""
if not request.path.startswith('/config/'):
return None
menu_links = [
(reverse('config_general'), _('General'),
request.path == reverse('config_general')),
]
for app in settings.INSTALLED_APPS:
try:
mod = import_module(app)
views = mod.views
views.Config
except (ImportError, AttributeError):
continue
appname = mod.__name__.split('.')[-1]
selected = reverse('config_%s' % appname) == request.path
try:
title = mod.NAME
except AttributeError:
title = appname.title()
menu_links.append(
(reverse('config_%s' % appname), _(title), selected)
)
menu_links.append (
(reverse('config_version'), _('Version'),
request.path == reverse('config_version'))
)
context.update({
'menu_links': menu_links,
})