OpenSlides/openslides/system/models.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.system.models
~~~~~~~~~~~~~~~~~~~~~~~~
Models for the system app.
:copyright: 2011 by the OpenSlides team, see AUTHORS.
:license: GNU GPL, see LICENSE for more details.
"""
from pickle import dumps, loads
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from django.db import models
from django.utils.translation import ugettext as _
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DEFAULT_DATA = {
'event_name': 'OpenSlides',
'event_description': 'Presentation and voting system',
'agenda_countdown_time': 60,
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'application_min_supporters': 4,
'application_preamble': 'Die Versammlung möge beschließen,',
'application_pdf_ballot_papers_selection': '1',
'application_pdf_title': _('Applications'),
'assignment_pdf_ballot_papers_selection': '1',
'assignment_pdf_title': _('Elections'),
'system_url': 'http://127.0.0.1:8000',
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'system_welcometext': 'Welcome to OpenSlides!',
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}
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class ConfigStore(models.Model):
key = models.CharField(max_length=100, primary_key=True)
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value = models.CharField(max_length=100)
def __unicode__(self):
return self.id
class Meta:
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verbose_name = 'config'
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permissions = (
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('can_manage_system', "Can manage system configuration"),
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)
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class Config(object):
def __getitem__(self, key):
try:
return loads(str(ConfigStore.objects.get(pk=key).value))
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except ConfigStore.DoesNotExist:
try:
return DEFAULT_DATA[key]
except KeyError:
return None
def __setitem__(self, key, value):
try:
c = ConfigStore.objects.get(pk=key)
except ConfigStore.DoesNotExist:
c = ConfigStore(pk=key)
c.value = dumps(value)
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c.save()