OpenSlides/openslides/agenda/views.py

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# TODO: Rename all views and template names
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from datetime import datetime, timedelta
from json import dumps
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from django.contrib import messages
from django.contrib.contenttypes.models import ContentType
from django.contrib.staticfiles.templatetags.staticfiles import static
from django.core.urlresolvers import reverse
from django.db import transaction, IntegrityError
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from django.db.models import Model
from django.template.loader import render_to_string
from django.utils.datastructures import SortedDict
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext as _
from django.utils.translation import ugettext_lazy
from reportlab.platypus import Paragraph
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from openslides.config.api import config
from openslides.projector.api import (
get_active_object,
get_active_slide,
get_projector_overlays_js,
get_overlays)
from openslides.utils import rest_api
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from openslides.utils.exceptions import OpenSlidesError
from openslides.utils.pdf import stylesheet
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from openslides.utils.utils import html_strong
from openslides.utils.views import (
AjaxMixin,
CreateView,
CSVImportView,
DeleteView,
FormView,
PDFView,
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QuestionView,
RedirectView,
SingleObjectMixin,
TemplateView,
UpdateView)
from .csv_import import import_agenda_items
from .forms import AppendSpeakerForm, ItemForm, ItemOrderForm, RelatedItemForm
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from .models import Item, Speaker
from .serializers import ItemSerializer
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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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"""
required_permission = 'agenda.can_see_agenda'
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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:
if ':' in item.duration:
duration_list = item.duration.split(':')
duration += timedelta(hours=int(duration_list[0]),
minutes=int(duration_list[1]))
else:
hours = int(item.duration) / 60
minutes = int(item.duration) - (60 * hours)
duration += timedelta(hours=hours,
minutes=minutes)
if minutes < 10:
minutes = "%s%s" % (0, minutes)
item.duration = "%s:%s" % (hours, minutes)
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if start is not 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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active_slide = get_active_slide()
if active_slide['callback'] == 'agenda':
agenda_is_active = active_slide.get('pk', 'agenda') == 'agenda'
active_type = active_slide.get('type', 'text')
else:
agenda_is_active = None
active_type = None
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context.update({
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'items': items,
'agenda_is_active': agenda_is_active,
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'duration': duration,
'start': start,
'end': end,
'active_type': active_type})
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return context
def post(self, request, *args, **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.'))
context = self.get_context_data(**kwargs)
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return self.render_to_response(context)
# Use transaction.atomic() to change all items at once.
# Raise IntegrityError if some data is invalid.
# In this case, django does not commit anything, else, the mptt-tree is
# rebuild.
try:
with transaction.atomic():
for item in Item.objects.all():
form = ItemOrderForm(request.POST, prefix="i%d" % item.id)
if form.is_valid():
try:
parent = Item.objects.get(id=form.cleaned_data['parent'])
except Item.DoesNotExist:
parent = None
else:
if item.type == item.AGENDA_ITEM and parent.type == item.ORGANIZATIONAL_ITEM:
messages.error(
request, _('Agenda items can not be child elements of an organizational item.'))
raise IntegrityError
item.parent = parent
item.weight = form.cleaned_data['weight']
Model.save(item)
else:
messages.error(
request, _('Errors when reordering of the agenda'))
raise IntegrityError
except IntegrityError:
pass
else:
Item.objects.rebuild()
# TODO: assure, that it is a valid tree
context = self.get_context_data(**kwargs)
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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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template_name = 'agenda/view.html'
model = Item
context_object_name = 'item'
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form_class = AppendSpeakerForm
def check_permission(self, request, *args, **kwargs):
"""
Checks if the user has the required permission.
"""
if self.get_object().type == Item.ORGANIZATIONAL_ITEM:
check_permission = request.user.has_perm('agenda.can_see_orga_items')
else:
check_permission = request.user.has_perm('agenda.can_see_agenda')
return check_permission
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def get_context_data(self, **kwargs):
list_of_speakers = self.get_object().get_list_of_speakers()
active_slide = get_active_slide()
active_type = active_slide.get('type', None)
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kwargs.update({
'object': self.get_object(),
'list_of_speakers': list_of_speakers,
'is_on_the_list_of_speakers': Speaker.objects.filter(
item=self.get_object(), begin_time=None, user=self.request.user).exists(),
'active_type': active_type,
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})
return super(AgendaItemView, self).get_context_data(**kwargs)
def form_valid(self, form):
Speaker.objects.add(user=form.cleaned_data['speaker'], item=self.get_object())
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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(SingleObjectMixin, RedirectView):
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"""
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Close or open an item.
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"""
required_permission = 'agenda.can_manage_agenda'
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allow_ajax = True
url_name = 'item_overview'
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model = Item
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def get_ajax_context(self, **kwargs):
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closed = self.kwargs['closed']
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if closed:
link = reverse('item_open', args=[self.get_object().pk])
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else:
link = reverse('item_close', args=[self.get_object().pk])
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return super(SetClosed, self).get_ajax_context(closed=closed, link=link)
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def pre_redirect(self, request, *args, **kwargs):
closed = kwargs['closed']
self.get_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.
"""
required_permission = 'agenda.can_manage_agenda'
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template_name = 'agenda/edit.html'
model = Item
context_object_name = 'item'
success_url_name = 'item_overview'
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url_name_args = []
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def get_form_class(self):
if self.get_object().content_object:
form = RelatedItemForm
else:
form = ItemForm
return form
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class ItemCreate(CreateView):
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"""
Create a new item.
"""
required_permission = 'agenda.can_manage_agenda'
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template_name = 'agenda/edit.html'
model = Item
context_object_name = 'item'
form_class = ItemForm
success_url_name = 'item_overview'
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url_name_args = []
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class ItemDelete(DeleteView):
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"""
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Delete an item.
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"""
required_permission = 'agenda.can_manage_agenda'
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model = Item
question_url_name = 'item_overview'
success_url_name = 'item_overview'
url_name_args = []
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def get_answer_options(self):
"""
Returns the possible answers to the delete view.
'all' is a possible answer, when the item has children.
"""
# Cache the result in the request, so when the children are deleted, the
# result does not change
try:
options = self.item_delete_answer_options
except AttributeError:
if self.get_object().children.exists():
options = [('all', _("Yes, with all child items."))] + self.answer_options
else:
options = self.answer_options
self.item_delete_answer_options = options
return options
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def on_clicked_yes(self):
"""
Deletes the item but not its children.
"""
self.get_object().delete(with_children=False)
def on_clicked_all(self):
"""
Deletes the item and its children.
"""
self.get_object().delete(with_children=True)
def get_final_message(self):
"""
Prints the success message to the user.
"""
# OpenSlidesError (invalid answer) should never be raised here because
# this method should only be called if the answer is 'yes' or 'all'.
if self.get_answer() == 'yes':
message = _('Item %s was successfully deleted.') % html_strong(self.get_object())
else:
message = _('Item %s and its children were successfully deleted.') % html_strong(self.get_object())
return message
class CreateRelatedAgendaItemView(SingleObjectMixin, RedirectView):
"""
View to create and agenda item for a related object.
This view is only for subclassing in views of related apps. You
have to define 'model = ....'
"""
required_permission = 'agenda.can_manage_agenda'
url_name = 'item_overview'
url_name_args = []
def pre_redirect(self, request, *args, **kwargs):
"""
Create the agenda item.
"""
self.item = Item.objects.create(content_object=self.get_object())
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class AgendaNumberingView(QuestionView):
required_permission = 'agenda.can_manage_agenda'
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question_url_name = 'item_overview'
url_name = 'item_overview'
question_message = ugettext_lazy('Do you really want to generate agenda numbering? Manually added item numbers will be overwritten!')
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url_name_args = []
def on_clicked_yes(self):
for item in Item.objects.all():
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item.item_number = item.calc_item_no()
item.save()
def get_final_message(self):
return ugettext_lazy('The agenda has been numbered.')
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class AgendaPDF(PDFView):
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"""
Create a full agenda-PDF.
"""
required_permission = '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 = "&nbsp;" * 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.
"""
required_permission = 'agenda.can_be_speaker'
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url_name = 'item_view'
model = Item
def pre_redirect(self, request, *args, **kwargs):
if self.get_object().speaker_list_closed:
messages.error(request, _('The list of speakers is closed.'))
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else:
try:
Speaker.objects.add(item=self.get_object(), user=request.user)
except OpenSlidesError as e:
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messages.error(request, e)
else:
messages.success(request, _('You were successfully added to the list of speakers.'))
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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 check_permission(self, request, *args, **kwargs):
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"""
Check the permission to delete a speaker.
"""
if 'speaker' in kwargs:
return request.user.has_perm('agenda.can_manage_agenda')
else:
# Any user who is on the list of speakers can delete himself from the list.
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return True
def get(self, *args, **kwargs):
if self.get_object() is None:
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return super(RedirectView, self).get(*args, **kwargs)
else:
return super().get(*args, **kwargs)
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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:
speaker = self._object
except AttributeError:
speaker_pk = self.kwargs.get('speaker')
if speaker_pk is not None:
queryset = Speaker.objects.filter(pk=speaker_pk)
else:
queryset = Speaker.objects.filter(
item=self.kwargs['pk'], user=self.request.user).exclude(weight=None)
try:
speaker = queryset.get()
except Speaker.DoesNotExist:
speaker = None
if speaker_pk is not None:
messages.error(self.request, _('You are not on the list of speakers.'))
self._object = speaker
return speaker
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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):
"""
Mark the speaking user.
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"""
required_permission = 'agenda.can_manage_agenda'
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url_name = 'item_view'
model = Item
def pre_redirect(self, *args, **kwargs):
try:
speaker = Speaker.objects.filter(
user=kwargs['user_id'],
item=self.get_object(),
begin_time=None).get()
except Speaker.DoesNotExist: # TODO: Check the MultipleObjectsReturned error here?
messages.error(
self.request,
_('%(user)s is not on the list of %(item)s.')
% {'user': kwargs['user_id'], 'item': self.get_object()})
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else:
speaker.begin_speach()
def get_url_name_args(self):
return [self.get_object().pk]
class SpeakerEndSpeachView(SingleObjectMixin, RedirectView):
"""
The speach of the actual speaker is finished.
"""
required_permission = 'agenda.can_manage_agenda'
url_name = 'item_view'
model = Item
def pre_redirect(self, *args, **kwargs):
try:
speaker = Speaker.objects.filter(
item=self.get_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.get_object()})
else:
speaker.end_speach()
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def get_url_name_args(self):
return [self.get_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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"""
required_permission = 'agenda.can_manage_agenda'
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model = Item
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reopen = False
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url_name = 'item_view'
def pre_redirect(self, *args, **kwargs):
self.get_object().speaker_list_closed = not self.reopen
self.get_object().save()
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def get_url_name_args(self):
return [self.get_object().pk]
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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.
"""
required_permission = 'agenda.can_manage_agenda'
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model = Item
url_name = 'item_view'
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.
"""
try:
with transaction.atomic():
for (counter, speaker) in enumerate(self.request.POST['sort_order'].split(',')):
try:
speaker_pk = int(speaker.split('_')[1])
except IndexError:
raise IntegrityError
try:
speaker = Speaker.objects.filter(item=self.get_object()).get(pk=speaker_pk)
except Speaker.DoesNotExist:
raise IntegrityError
speaker.weight = counter + 1
speaker.save()
except IntegrityError:
messages.error(request, _('Could not change order. Invalid data.'))
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def get_url_name_args(self):
return [self.get_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_active_object()
if slide is None or isinstance(slide, Item):
# No Slide or an agenda item is active
item = slide
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else:
# A related Item is active
try:
item = Item.objects.filter(
content_type=ContentType.objects.get_for_model(slide),
object_id=slide.pk)[0]
except IndexError:
item = None
return item
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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.'))
return reverse('core_dashboard')
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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 as e:
messages.error(request, e)
else:
messages.success(request, _('You were successfully added to the list of speakers.'))
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 item.type == Item.ORGANIZATIONAL_ITEM:
if reverse_to_dashboard or not self.request.user.has_perm('agenda.can_see_orga_items'):
return reverse('core_dashboard')
else:
return reverse('item_view', args=[item.pk])
2013-03-18 12:34:47 +01:00
else:
if reverse_to_dashboard or not self.request.user.has_perm('agenda.can_see_agenda'):
return reverse('core_dashboard')
else:
return reverse('item_view', args=[item.pk])
class CurrentListOfSpeakersProjectorView(AjaxMixin, TemplateView):
"""
View with the current list of speakers depending on the active slide.
Usefule for the projector.
"""
template_name = 'agenda/current_list_of_speakers_projector.html'
def get(self, request, *args, **kwargs):
"""
Returns response object depending on request type (ajax or normal).
"""
if request.is_ajax():
value = self.ajax_get(request, *args, **kwargs)
else:
value = super(CurrentListOfSpeakersProjectorView, self).get(request, *args, **kwargs)
return value
def get_item(self):
"""
Returns the item of the current slide is an agenda item slide or a
slide of a related model else returns None.
"""
slide_object = get_active_object()
if slide_object is None or isinstance(slide_object, Item):
item = slide_object
else:
# TODO: If there is more than one item, use the first one in the
# mptt tree that is not closed.
try:
item = Item.objects.filter(
content_type=ContentType.objects.get_for_model(slide_object),
object_id=slide_object.pk)[0]
except IndexError:
item = None
return item
def get_content(self):
"""
Returns the content of this slide.
"""
item = self.get_item()
if item is None:
content = mark_safe('<h1>%s</h1><i>%s</i>\n' % (_('List of speakers'), _('Not available.')))
else:
content_dict = {
'title': item.get_title(),
'item': item,
'list_of_speakers': item.get_list_of_speakers(
old_speakers_count=config['agenda_show_last_speakers'])}
content = render_to_string('agenda/item_slide_list_of_speaker.html', content_dict)
return content
def get_overlays_and_overlay_js(self):
"""
Returns the overlays and their JavaScript for this slide as a
two-tuple. The overlay 'agenda_speaker' is always excluded.
The required JavaScript fot this view is inserted.
"""
overlays = get_overlays(only_active=True)
overlays.pop('agenda_speaker', None)
overlay_js = get_projector_overlays_js(as_json=True)
# Note: The JavaScript content of overlay 'agenda_speaker' is not
# excluded because this overlay has no such content at the moment.
extra_js = SortedDict()
extra_js['load_file'] = static('js/agenda_current_list_of_speakers_projector.js')
extra_js['call'] = 'reloadListOfSpeakers();'
extra_js = dumps(extra_js)
overlay_js.append(extra_js)
return overlays, overlay_js
def get_context_data(self, **context):
"""
Returns the context for the projector template. Contains the content
of this slide.
"""
overlays, overlay_js = self.get_overlays_and_overlay_js()
return super(CurrentListOfSpeakersProjectorView, self).get_context_data(
content=self.get_content(),
overlays=overlays,
overlay_js=overlay_js,
**context)
def get_ajax_context(self, **context):
"""
Returns the context including the slide content for ajax response. The
overlay 'agenda_speaker' is always excluded.
"""
overlay_dict = {}
for overlay in get_overlays().values():
if overlay.is_active() and overlay.name != 'agenda_speaker':
overlay_dict[overlay.name] = {
'html': overlay.get_projector_html(),
'javascript': overlay.get_javascript()}
else:
overlay_dict[overlay.name] = None
return super(CurrentListOfSpeakersProjectorView, self).get_ajax_context(
content=self.get_content(),
overlays=overlay_dict,
**context)
class ItemCSVImportView(CSVImportView):
"""
Imports agenda items from an uploaded csv file.
"""
import_function = staticmethod(import_agenda_items)
required_permission = 'agenda.can_manage_agenda'
success_url_name = 'item_overview'
template_name = 'agenda/item_form_csv_import.html'
class ItemViewSet(rest_api.viewsets.ModelViewSet):
"""
API endpoint to retrieve, create, edit and delete agenda items.
"""
model = Item
serializer_class = ItemSerializer
def check_permissions(self, request):
"""
Calls self.permission_denied() if the requesting user has not the
permission to see and in case of create, update or destroy requests
the permission to manage and to see organizational items.
"""
if (not request.user.has_perm('agenda.can_see_agenda') or
(self.action in ('create', 'update', 'destroy') and not
(request.user.has_perm('agenda.can_manage_agenda') and
request.user.has_perm('agenda.can_see_orga_items')))):
self.permission_denied(request)
def check_object_permissions(self, request, obj):
"""
Checks if the requesting user has permission to see also an
organizational item if it is one.
"""
if obj.type == obj.ORGANIZATIONAL_ITEM and not request.user.has_perm('agenda.can_see_orga_items'):
self.permission_denied(request)
def get_queryset(self):
"""
Filters organizational items if the user has no permission to see it.
"""
queryset = Item.objects.all()
if not self.request.user.has_perm('agenda.can_see_orga_items'):
queryset = queryset.exclude(type__exact=Item.ORGANIZATIONAL_ITEM)
return queryset