OpenSlides/openslides/agenda/views.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
openslides.agenda.views
~~~~~~~~~~~~~~~~~~~~~~~
Views for the agenda app.
:copyright: 20112013 by the OpenSlides team, see AUTHORS.
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:license: GNU GPL, see LICENSE for more details.
"""
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# TODO: Rename all views and template names
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from reportlab.platypus import Paragraph
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from datetime import datetime, timedelta
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from django.core.urlresolvers import reverse
from django.contrib import messages
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from django.db import transaction
from django.db.models import Model
from django.utils.translation import ugettext as _, ugettext_lazy
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from django.views.generic.detail import SingleObjectMixin
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from openslides.config.api import config
from openslides.utils.pdf import stylesheet
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from openslides.utils.exceptions import OpenSlidesError
from openslides.utils.views import (
TemplateView, RedirectView, UpdateView, CreateView, DeleteView, PDFView,
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DetailView, FormView, SingleObjectMixin)
from openslides.utils.template import Tab
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from openslides.utils.utils import html_strong
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from openslides.projector.api import get_active_slide, get_slide_from_sid
from openslides.projector.projector import Widget, SLIDE
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from .models import Item, Speaker
from .forms import ItemOrderForm, ItemForm, AppendSpeakerForm, RelatedItemForm
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class Overview(TemplateView):
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"""
Show all agenda items, and update their range via post.
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"""
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permission_required = 'agenda.can_see_agenda'
template_name = 'agenda/overview.html'
def get_context_data(self, **kwargs):
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context = super(Overview, self).get_context_data(**kwargs)
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if self.request.user.has_perm('agenda.can_see_orga_items'):
items = Item.objects.all()
else:
items = Item.objects.filter(type__exact=Item.AGENDA_ITEM)
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# Save the items as a list (not a queryset). This is important,
# because in other case, django-mtpp reloads the items in the
# template. But we add some attributes (in this function), which are
# not in the database and would be lost if the items were reloaded.
# TODO: Try to remove this line in later versions of django-mptt
items = list(items)
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start = config['agenda_start_event_date_time']
if start is None or len(start) == 0:
start = None
else:
start = datetime.strptime(start, '%d.%m.%Y %H:%M')
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duration = timedelta()
for item in items:
if (item.duration is not None and
len(item.duration) > 0):
duration_list = item.duration.split(':')
duration += timedelta(hours=int(duration_list[0]),
minutes=int(duration_list[1]))
if not start is None:
item.tooltip = start + duration
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if start is None:
end = None
else:
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end = start + duration
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duration = u'%d:%02d' % (
(duration.days * 24 + duration.seconds / 3600.0),
(duration.seconds / 60.0 % 60))
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context.update({
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'items': items,
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'active_sid': get_active_slide(only_sid=True),
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'duration': duration,
'start': start,
'end': end,
'summary': config['presentation_argument'] == 'summary',
'show_list': config['presentation_argument'] == 'show_list_of_speakers'})
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return context
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@transaction.commit_manually
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def post(self, request, *args, **kwargs):
context = self.get_context_data(**kwargs)
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if not request.user.has_perm('agenda.can_manage_agenda'):
messages.error(
request,
_('You are not authorized to manage the agenda.'))
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return self.render_to_response(context)
transaction.commit()
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for item in Item.objects.all():
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form = ItemOrderForm(request.POST, prefix="i%d" % item.id)
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if form.is_valid():
try:
parent = Item.objects.get(id=form.cleaned_data['parent'])
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except Item.DoesNotExist:
parent = None
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item.weight = form.cleaned_data['weight']
item.parent = parent
Model.save(item)
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else:
transaction.rollback()
messages.error(
request, _('Errors when reordering of the agenda'))
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return self.render_to_response(context)
Item.objects.rebuild()
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# TODO: assure, that it is a valid tree
transaction.commit()
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return self.render_to_response(context)
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class AgendaItemView(SingleObjectMixin, FormView):
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"""
Show an agenda item.
"""
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# TODO: use 'SingleObjectTemplateResponseMixin' to choose the right template name
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permission_required = 'agenda.can_see_agenda'
template_name = 'agenda/view.html'
model = Item
context_object_name = 'item'
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form_class = AppendSpeakerForm
def get_context_data(self, **kwargs):
self.object = self.get_object()
list_of_speakers = self.object.get_list_of_speakers()
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kwargs.update({
'object': self.object,
'list_of_speakers': list_of_speakers,
'is_on_the_list_of_speakers': Speaker.objects.filter(item=self.object, begin_time=None, person=self.request.user).exists(),
'show_list': config['presentation_argument'] == 'show_list_of_speakers',
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})
return super(AgendaItemView, self).get_context_data(**kwargs)
def form_valid(self, form):
Speaker.objects.add(person=form.cleaned_data['speaker'], item=self.get_object())
return self.render_to_response(self.get_context_data(form=form))
def get_form_kwargs(self):
kwargs = super(AgendaItemView, self).get_form_kwargs()
kwargs['item'] = self.get_object()
return kwargs
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class SetClosed(RedirectView, SingleObjectMixin):
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"""
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Close or open an item.
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"""
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permission_required = 'agenda.can_manage_agenda'
allow_ajax = True
url_name = 'item_overview'
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model = Item
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def get_ajax_context(self, **kwargs):
context = super(SetClosed, self).get_ajax_context(**kwargs)
closed = kwargs['closed']
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if closed:
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link = reverse('item_open', args=[self.object.id])
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else:
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link = reverse('item_close', args=[self.object.id])
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context.update({
'closed': kwargs['closed'],
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'link': link})
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return context
def pre_redirect(self, request, *args, **kwargs):
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self.object = self.get_object()
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closed = kwargs['closed']
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self.object.set_closed(closed)
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return super(SetClosed, self).pre_redirect(request, *args, **kwargs)
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def get_url_name_args(self):
return []
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class ItemUpdate(UpdateView):
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"""
Update an existing item.
"""
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permission_required = 'agenda.can_manage_agenda'
template_name = 'agenda/edit.html'
model = Item
context_object_name = 'item'
success_url_name = 'item_overview'
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def get_form_class(self):
if self.object.related_sid is None:
return ItemForm
else:
return RelatedItemForm
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class ItemCreate(CreateView):
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"""
Create a new item.
"""
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permission_required = 'agenda.can_manage_agenda'
template_name = 'agenda/edit.html'
model = Item
context_object_name = 'item'
form_class = ItemForm
success_url_name = 'item_overview'
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class ItemDelete(DeleteView):
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"""
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Delete an item.
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"""
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permission_required = 'agenda.can_manage_agenda'
model = Item
question_url_name = 'item_overview'
success_url_name = 'item_overview'
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def get_answer_options(self):
if self.object.children.exists():
return [('all', _("Yes, with all child items."))] + self.answer_options
else:
return self.answer_options
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def pre_post_redirect(self, request, *args, **kwargs):
if self.get_answer() == 'all':
self.object.delete(with_children=True)
messages.success(
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request,
_("Item %s and his children were successfully deleted.")
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% html_strong(self.object))
elif self.get_answer() == 'yes':
self.object.delete(with_children=False)
messages.success(
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request,
_("Item %s was successfully deleted.")
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% html_strong(self.object))
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class AgendaPDF(PDFView):
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"""
Create a full agenda-PDF.
"""
permission_required = 'agenda.can_see_agenda'
filename = ugettext_lazy('Agenda')
document_title = ugettext_lazy('Agenda')
def append_to_pdf(self, story):
for item in Item.objects.filter(type__exact=Item.AGENDA_ITEM):
ancestors = item.get_ancestors()
if ancestors:
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space = " " * 6 * ancestors.count()
story.append(Paragraph(
"%s%s" % (space, item.get_title()),
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stylesheet['Subitem']))
else:
story.append(Paragraph(item.get_title(), stylesheet['Item']))
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class SpeakerAppendView(SingleObjectMixin, RedirectView):
"""
Set the request.user to the speaker list.
"""
permission_required = 'agenda.can_be_speaker'
url_name = 'item_view'
model = Item
def pre_redirect(self, request, *args, **kwargs):
self.object = self.get_object()
if self.object.speaker_list_closed:
messages.error(request, _('The list of speakers is closed.'))
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else:
try:
Speaker.objects.add(item=self.object, person=request.user)
except OpenSlidesError, e:
messages.error(request, e)
class SpeakerDeleteView(DeleteView):
"""
Delete the request.user or a specific user from the speaker list.
"""
success_url_name = 'item_view'
question_url_name = 'item_view'
def has_permission(self, request, *args, **kwargs):
"""
Check the permission to delete a speaker.
"""
if 'speaker' in kwargs:
return request.user.has_perm('agenda.can_manage_agenda')
else:
# Any person who is on the list of speakers can delete himself from the list.
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return True
def get(self, *args, **kwargs):
try:
return super(SpeakerDeleteView, self).get(*args, **kwargs)
except Speaker.DoesNotExist:
messages.error(self.request, _('You are not on the list of speakers.'))
return super(RedirectView, self).get(*args, **kwargs)
def get_object(self):
"""
Returns the speaker object.
If 'speaker' is in kwargs, this speaker object is returnd. Else, a speaker
object with the request.user as speaker.
"""
try:
return Speaker.objects.get(pk=self.kwargs['speaker'])
except KeyError:
return Speaker.objects.filter(
item=self.kwargs['pk'], person=self.request.user).exclude(weight=None).get()
def get_url_name_args(self):
return [self.kwargs['pk']]
def get_question(self):
if 'speaker' in self.kwargs:
return super(SpeakerDeleteView, self).get_question()
else:
return _('Do you really want to remove yourself from the list of speakers?')
class SpeakerSpeakView(SingleObjectMixin, RedirectView):
"""
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Mark the speaking person.
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"""
permission_required = 'agenda.can_manage_agenda'
url_name = 'item_view'
model = Item
def pre_redirect(self, *args, **kwargs):
self.object = self.get_object()
try:
speaker = Speaker.objects.filter(
person=kwargs['person_id'],
item=self.object,
begin_time=None).get()
except Speaker.DoesNotExist: # TODO: Check the MultipleObjectsReturned error here?
messages.error(
self.request,
_('%(person)s is not on the list of %(item)s.')
% {'person': kwargs['person_id'], 'item': self.object})
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else:
speaker.begin_speach()
def get_url_name_args(self):
return [self.object.pk]
class SpeakerEndSpeachView(SingleObjectMixin, RedirectView):
"""
The speach of the actual speaker is finished.
"""
permission_required = 'agenda.can_manage_agenda'
url_name = 'item_view'
model = Item
def pre_redirect(self, *args, **kwargs):
self.object = self.get_object()
try:
speaker = Speaker.objects.filter(
item=self.object,
end_time=None).exclude(begin_time=None).get()
except Speaker.DoesNotExist:
messages.error(
self.request,
_('There is no one speaking at the moment according to %(item)s.')
% {'item': self.object})
else:
speaker.end_speach()
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def get_url_name_args(self):
return [self.object.pk]
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class SpeakerListCloseView(SingleObjectMixin, RedirectView):
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"""
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View to close and reopen a list of speakers.
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"""
permission_required = 'agenda.can_manage_agenda'
model = Item
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reopen = False
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url_name = 'item_view'
def pre_redirect(self, *args, **kwargs):
self.object = self.get_object()
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self.object.speaker_list_closed = not self.reopen
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self.object.save()
def get_url_name_args(self):
return [self.object.pk]
class SpeakerChangeOrderView(SingleObjectMixin, RedirectView):
"""
Change the order of the speakers.
Has to be called as post-request with the new order of the speaker ids.
"""
permission_required = 'agenda.can_manage_agenda'
model = Item
url_name = 'item_view'
def pre_redirect(self, args, **kwargs):
self.object = self.get_object()
@transaction.commit_manually
def pre_post_redirect(self, request, *args, **kwargs):
"""
Reorder the list of speaker.
Take the string 'sort_order' from the post-data, and use this order.
"""
self.object = self.get_object()
transaction.commit()
for (counter, speaker) in enumerate(self.request.POST['sort_order'].split(',')):
try:
speaker_pk = int(speaker.split('_')[1])
except IndexError:
transaction.rollback()
break
try:
speaker = Speaker.objects.filter(item=self.object).get(pk=speaker_pk)
except:
transaction.rollback()
break
speaker.weight = counter + 1
speaker.save()
else:
transaction.commit()
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return None
messages.error(request, _('Could not change order. Invalid data.'))
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def get_url_name_args(self):
return [self.object.pk]
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class CurrentListOfSpeakersView(RedirectView):
"""
Redirect to the current list of speakers and set the request.user on it,
begins speach of the next speaker or ends the speach of the current speaker.
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"""
set_speaker = False
next_speaker = False
end_speach = False
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def get_item(self):
"""
Returns the current Item, or None, if the current Slide is not an Agenda Item.
"""
slide = get_slide_from_sid(get_active_slide(only_sid=True), element=True)
if not isinstance(slide, Item):
return None
else:
return slide
def get_redirect_url(self):
"""
Returns the URL to the item_view if:
* the current slide is an item,
* the user has the permission to see the item,
* the user who wants to be a speaker has this permission and
* the list of speakers of the item is not closed,
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in other case, it returns the URL to the dashboard.
This method also adds the request.user to the list of speakers if he
has the right permissions and the list is not closed.
This method also begins the speach of the next speaker if the flag
next_speaker is given.
This method also ends the speach of the current speaker if the flag
end_speach is given.
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"""
item = self.get_item()
request = self.request
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if item is None:
messages.error(request, _(
'There is no list of speakers for the current slide. '
'Please choose the agenda item manually from the agenda.'))
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return reverse('dashboard')
if self.set_speaker:
if item.speaker_list_closed:
messages.error(request, _('The list of speakers is closed.'))
reverse_to_dashboard = True
else:
if self.request.user.has_perm('agenda.can_be_speaker'):
try:
Speaker.objects.add(self.request.user, item)
except OpenSlidesError, e:
messages.error(request, e)
finally:
reverse_to_dashboard = False
else:
messages.error(request, _('You can not put yourself on the list of speakers.'))
reverse_to_dashboard = True
else:
reverse_to_dashboard = False
if self.next_speaker:
next_speaker_object = item.get_next_speaker()
if next_speaker_object:
next_speaker_object.begin_speach()
messages.success(request, _('%s is now speaking.') % next_speaker_object)
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else:
messages.error(request, _('The list of speakers is empty.'))
if not self.set_speaker:
reverse_to_dashboard = True
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if self.end_speach:
try:
current_speaker = item.speaker_set.filter(end_time=None).exclude(begin_time=None).get()
except Speaker.DoesNotExist:
messages.error(request, _('There is no one speaking at the moment.'))
else:
current_speaker.end_speach()
messages.success(request, _('%s is now finished.') % current_speaker)
reverse_to_dashboard = True
if reverse_to_dashboard or not self.request.user.has_perm('agenda.can_see_agenda'):
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return reverse('dashboard')
else:
return reverse('item_view', args=[item.pk])
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def register_tab(request):
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"""
Registers the agenda tab.
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"""
selected = request.path.startswith('/agenda/')
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return Tab(
title=_('Agenda'),
app='agenda',
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url=reverse('item_overview'),
permission=(request.user.has_perm('agenda.can_see_agenda') or
request.user.has_perm('agenda.can_manage_agenda')),
selected=selected)
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def get_widgets(request):
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"""
Returns the agenda widget for the projector tab.
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"""
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return [
Widget(
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request,
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name='agenda',
display_name=_('Agenda'),
template='agenda/widget.html',
context={
'agenda': SLIDE['agenda'],
'items': Item.objects.all(),
'summary': config['presentation_argument'] == 'summary',
'speakers': config['presentation_argument'] == 'show_list_of_speakers'},
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permission_required='projector.can_manage_projector'),
Widget(
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request,
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name='append_to_list_of_speakers',
display_name=_('List of speakers'),
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template='agenda/speaker_widget.html',
permission_required='agenda.can_be_speaker')]