OpenSlides/openslides/agenda/models.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.agenda.models
~~~~~~~~~~~~~~~~~~~~~~~~
Models for the agenda app.
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:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
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:license: GNU GPL, see LICENSE for more details.
"""
try:
import json
except ImportError:
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# for python 2.5 support
import simplejson as json
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from django.db import models
from django.core.urlresolvers import reverse
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from django.utils.translation import ugettext_lazy as _, ugettext_noop
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from mptt.models import MPTTModel, TreeForeignKey
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from openslides.config.models import config
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from openslides.projector.projector import SlideMixin
from openslides.projector.api import (register_slidemodel, get_slide_from_sid,
register_slidefunc, split_sid)
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from openslides.agenda.slides import agenda_show
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class Item(MPTTModel, SlideMixin):
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"""
An Agenda Item
MPTT-model. See http://django-mptt.github.com/django-mptt/
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"""
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prefix = 'item'
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title = models.CharField(null=True, max_length=255, verbose_name=_("Title"))
text = models.TextField(null=True, blank=True, verbose_name=_("Text"))
comment = models.TextField(null=True, blank=True, verbose_name=_("Comment"))
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closed = models.BooleanField(default=False, verbose_name=_("Closed"))
weight = models.IntegerField(default=0, verbose_name=_("Weight"))
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parent = TreeForeignKey('self', null=True, blank=True,
related_name='children')
related_sid = models.CharField(null=True, blank=True, max_length=63)
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def get_related_slide(self):
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"""
return the object, of which the item points.
"""
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return get_slide_from_sid(self.related_sid, True)
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def get_related_type(self):
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"""
return the type of the releated slide.
"""
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return self.get_related_slide().prefix
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def print_related_type(self):
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"""
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Print the type of the related item.
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For use in Template
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??Why does {% trans item.print_related_type|capfirst %} not work??
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"""
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return _(self.get_related_type().capitalize())
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def get_title(self):
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"""
return the title of this item.
"""
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if self.related_sid is None:
return self.title
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return self.get_related_slide().get_agenda_title()
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def slide(self):
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"""
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Return a map with all Data for the Slide
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"""
if config['presentation_argument'] == 'summary':
data = {
'title': self.get_title(),
'items': self.get_children(),
'template': 'projector/AgendaSummary.html',
}
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elif self.related_sid:
data = self.get_related_slide().slide()
else:
data = {
'item': self,
'title': self.get_title(),
'template': 'projector/AgendaText.html',
}
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return data
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def set_closed(self, closed=True):
"""
Changes the closed-status of the item.
"""
self.closed = closed
self.save()
@property
def weight_form(self):
"""
Return the WeightForm for this item.
"""
from openslides.agenda.forms import ItemOrderForm
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try:
parent = self.parent.id
except AttributeError:
parent = 0
initial = {
'weight': self.weight,
'self': self.id,
'parent': parent,
}
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return ItemOrderForm(initial=initial, prefix="i%d" % self.id)
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def delete(self, with_children=False):
"""
Delete the Item.
"""
if not with_children:
for child in self.get_children():
child.move_to(self.parent)
child.save()
super(Item, self).delete()
Item.objects.rebuild()
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def get_absolute_url(self, link='view'):
"""
Return the URL to this item. By default it is the Link to its
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slide
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link can be:
* view
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* edit
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* delete
"""
if link == 'view':
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if self.related_sid:
return self.get_related_slide().get_absolute_url(link)
return reverse('item_view', args=[str(self.id)])
if link == 'edit':
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if self.related_sid:
return self.get_related_slide().get_absolute_url(link)
return reverse('item_edit', args=[str(self.id)])
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if link == 'delete':
return reverse('item_delete', args=[str(self.id)])
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def __unicode__(self):
return self.get_title()
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class Meta:
permissions = (
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('can_see_agenda', ugettext_noop("Can see agenda")),
('can_manage_agenda', ugettext_noop("Can manage agenda")),
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)
class MPTTMeta:
order_insertion_by = ['weight']
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register_slidemodel(Item, control_template='agenda/control_item.html')
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register_slidefunc('agenda', agenda_show, weight=-1, name=_('Agenda'))