80 lines
2.2 KiB
Python
80 lines
2.2 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.system.models
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~~~~~~~~~~~~~~~~~~~~~~~~
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Models for the system 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 pickle import dumps, loads
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import base64
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from django.db import models
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from django.utils.translation import ugettext as _
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DEFAULT_DATA = {
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'event_name': 'OpenSlides',
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'event_description': 'Presentation and voting system',
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'agenda_countdown_time': 60,
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'application_min_supporters': 4,
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'application_preamble': 'Die Versammlung möge beschließen,',
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'application_pdf_ballot_papers_selection': '1',
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'application_pdf_title': _('Applications'),
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'assignment_pdf_ballot_papers_selection': '1',
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'assignment_pdf_title': _('Elections'),
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'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):
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key = models.CharField(max_length=100, primary_key=True)
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value = models.CharField(max_length=100)
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def __unicode__(self):
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return self.key
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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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# TODO:
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# I used base64 to save pickled Data, there has to be another way see:
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# http://stackoverflow.com/questions/2524970/djangounicodedecodeerror-while-storing-pickled-data
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class Config(object):
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def load_config(self):
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self.config = {}
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for key, value in ConfigStore.objects.all().values_list():
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self.config[key] = loads(base64.decodestring(str(value)))
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def __getitem__(self, key):
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try:
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self.config
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except AttributeError:
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self.load_config()
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try:
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return self.config[key]
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except KeyError:
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pass
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try:
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return DEFAULT_DATA[key]
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except KeyError:
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return None
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def __setitem__(self, key, value):
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try:
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c = ConfigStore.objects.get(pk=key)
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except ConfigStore.DoesNotExist:
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c = ConfigStore(pk=key)
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c.value = base64.encodestring(dumps(value))
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c.save()
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self.config[key] = value
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