#!/usr/bin/env python # -*- coding: utf-8 -*- """ openslides.config.models ~~~~~~~~~~~~~~~~~~~~~~~~ Models for the config app. :copyright: 2011 by the OpenSlides team, see AUTHORS. :license: GNU GPL, see LICENSE for more details. """ from pickle import dumps, loads import base64 from django.db import models from django.dispatch import receiver from utils.translation_ext import ugettext as _ from openslides.config.signals import default_config_value class ConfigStore(models.Model): key = models.CharField(max_length=100, primary_key=True) value = models.CharField(max_length=100) def __unicode__(self): return self.key class Meta: verbose_name = 'config' permissions = ( ('can_manage_config', _("Can manage configuration", fixstr=True)), ) # TODO: # I used base64 to save pickled Data, there has to be another way see: # http://stackoverflow.com/questions/2524970/djangounicodedecodeerror-while-storing-pickled-data class Config(object): def load_config(self): self.config = {} for key, value in ConfigStore.objects.all().values_list(): self.config[key] = loads(base64.decodestring(str(value))) def __getitem__(self, key): try: self.config except AttributeError: self.load_config() try: return self.config[key] except KeyError: pass for receiver, value in default_config_value.send(sender='config', key=key): if value is not None: return value return None def __setitem__(self, key, value): try: c = ConfigStore.objects.get(pk=key) except ConfigStore.DoesNotExist: c = ConfigStore(pk=key) c.value = base64.encodestring(dumps(value)) c.save() try: self.config[key] = value except AttributeError: self.load_config() self.config[key] = value config = Config() @receiver(default_config_value, dispatch_uid="config_default_config") def default_config(sender, key, **kwargs): return { 'event_name': 'OpenSlides', 'event_description': 'Presentation and voting system', 'system_url': 'http://127.0.0.1:8000', 'system_welcometext': 'Welcome to OpenSlides!', }.get(key) from django.dispatch import receiver from django.core.urlresolvers import reverse from django.utils.importlib import import_module import settings from openslides.utils.signals import template_manipulation @receiver(template_manipulation, dispatch_uid="config_submenu") def set_submenu(sender, request, context, **kwargs): if not request.path.startswith('/config/'): return None selected = True if request.path == reverse('config_general') else False menu_links = [ (reverse('config_general'), _('General'), selected), ] for app in settings.INSTALLED_APPS: try: mod = import_module(app + '.views') mod.Config except (ImportError, AttributeError): continue appname = mod.__name__.split('.')[0] selected = True if reverse('config_%s' % appname) == request.path else False menu_links.append( (reverse('config_%s' % appname), _(appname.title()), selected) ) context.update({ 'menu_links': menu_links, })