768 lines
25 KiB
Python
768 lines
25 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.motion.views
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~~~~~~~~~~~~~~~~~~~~~~~
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Views for the motion app.
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The views are automaticly imported from openslides.motion.urls.
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:copyright: (c) 2011–2013 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 django.core.urlresolvers import reverse
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from django.contrib import messages
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from django.db import transaction
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from django.db.models import Model
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from django.utils.translation import ugettext as _, ugettext_lazy, ugettext_noop
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from django.views.generic.detail import SingleObjectMixin
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from django.http import Http404, HttpResponseRedirect
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from reportlab.platypus import SimpleDocTemplate
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from openslides.utils.pdf import stylesheet
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from openslides.utils.views import (
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TemplateView, RedirectView, UpdateView, CreateView, DeleteView, PDFView,
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DetailView, ListView, FormView, QuestionMixin, SingleObjectMixin)
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from openslides.utils.template import Tab
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from openslides.utils.utils import html_strong, htmldiff
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from openslides.poll.views import PollFormView
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from openslides.projector.api import get_active_slide
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from openslides.projector.projector import Widget, SLIDE
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from openslides.config.api import config
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from openslides.agenda.models import Item
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from .models import (Motion, MotionSubmitter, MotionSupporter, MotionPoll,
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MotionVersion, State, WorkflowError, Category)
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from .forms import (BaseMotionForm, MotionSubmitterMixin, MotionSupporterMixin,
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MotionDisableVersioningMixin, MotionCategoryMixin,
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MotionIdentifierMixin, MotionSetWorkflowMixin, MotionImportForm)
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from .pdf import motions_to_pdf, motion_to_pdf, motion_poll_to_pdf
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from .csv_import import import_motions
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class MotionListView(ListView):
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"""
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View, to list all motions.
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"""
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permission_required = 'motion.can_see_motion'
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model = Motion
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motion_list = MotionListView.as_view()
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class MotionDetailView(DetailView):
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"""
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Show one motion.
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"""
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permission_required = 'motion.can_see_motion'
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model = Motion
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def get_context_data(self, **kwargs):
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"""
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Return the template context.
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Append the allowed actions for the motion, the shown version and its
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data to the context.
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"""
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version_number = self.kwargs.get('version_number', None)
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if version_number is not None:
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try:
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version = self.object.versions.get(version_number=int(version_number))
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except MotionVersion.DoesNotExist:
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raise Http404('Version %s not found' % version_number)
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else:
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version = self.object.get_active_version()
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kwargs.update({
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'allowed_actions': self.object.get_allowed_actions(self.request.user),
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'version': version,
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'title': version.title,
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'text': version.text,
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'reason': version.reason})
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return super(MotionDetailView, self).get_context_data(**kwargs)
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motion_detail = MotionDetailView.as_view()
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class MotionEditMixin(object):
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"""
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Mixin for motion views classes to save the version data.
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"""
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def form_valid(self, form):
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"""
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Saves the CreateForm or UpdateForm into a motion object.
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"""
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self.object = form.save(commit=False)
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if type(self) == MotionUpdateView:
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# Decide if a new version is saved to the database
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if (self.object.state.versioning and
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not form.cleaned_data.get('disable_versioning', False)):
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version = self.object.get_new_version()
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else:
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version = self.object.get_last_version()
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else:
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version = self.object.get_new_version()
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for attr in ['title', 'text', 'reason']:
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setattr(version, attr, form.cleaned_data[attr])
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try:
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self.object.category = form.cleaned_data['category']
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except KeyError:
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pass
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try:
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self.object.identifier = form.cleaned_data['identifier']
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except KeyError:
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pass
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workflow = form.cleaned_data.get('set_workflow', None)
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if workflow:
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self.object.reset_state(workflow)
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self.object.save(use_version=version)
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# Save the submitter an the supporter so the motion.
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# TODO: Only delete and save neccessary submitters and supporters
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if 'submitter' in form.cleaned_data:
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self.object.submitter.all().delete()
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MotionSubmitter.objects.bulk_create(
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[MotionSubmitter(motion=self.object, person=person)
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for person in form.cleaned_data['submitter']])
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if 'supporter' in form.cleaned_data:
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self.object.supporter.all().delete()
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MotionSupporter.objects.bulk_create(
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[MotionSupporter(motion=self.object, person=person)
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for person in form.cleaned_data['supporter']])
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return HttpResponseRedirect(self.get_success_url())
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def get_form_class(self):
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"""
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Return the FormClass to create or update the motion.
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forms.BaseMotionForm is the base for the Class, and some FormMixins
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will be mixed in dependence of some config values. See motion.forms
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for more information on the mixins.
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"""
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form_classes = []
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if (self.request.user.has_perm('motion.can_manage_motion') and
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(config['motion_identifier'] == 'manually' or type(self) == MotionUpdateView)):
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form_classes.append(MotionIdentifierMixin)
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form_classes.append(BaseMotionForm)
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if self.request.user.has_perm('motion.can_manage_motion'):
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form_classes.append(MotionSubmitterMixin)
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form_classes.append(MotionCategoryMixin)
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if config['motion_min_supporters'] > 0:
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form_classes.append(MotionSupporterMixin)
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if self.object:
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if config['motion_allow_disable_versioning'] and self.object.state.versioning:
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form_classes.append(MotionDisableVersioningMixin)
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if self.request.user.has_perm('motion.can_manage_motion'):
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form_classes.append(MotionSetWorkflowMixin)
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return type('MotionForm', tuple(form_classes), {})
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class MotionCreateView(MotionEditMixin, CreateView):
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"""
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View to create a motion.
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"""
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model = Motion
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def has_permission(self, request, *args, **kwargs):
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"""
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Checks whether the requesting user can submit a new motion. He needs
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at least the permission 'motion.can_create_motion'. If the submitting
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of new motions by non-staff users is stopped via config variable
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'motion_stop_submitting', the requesting user needs also to have
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'motion.can_manage_motion'.
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"""
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if request.user.has_perm('motion.can_create_motion'):
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return not config['motion_stop_submitting'] or request.user.has_perm('motion.can_manage_motion')
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return False
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def form_valid(self, form):
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"""
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Write a log message if the form is valid.
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"""
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response = super(MotionCreateView, self).form_valid(form)
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self.object.write_log([ugettext_noop('Motion created')], self.request.user)
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if not 'submitter' in form.cleaned_data:
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self.object.add_submitter(self.request.user)
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return response
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motion_create = MotionCreateView.as_view()
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class MotionUpdateView(MotionEditMixin, UpdateView):
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"""
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View to update a motion.
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"""
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model = Motion
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def has_permission(self, request, *args, **kwargs):
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"""
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Check if the request.user has the permission to edit the motion.
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"""
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return self.get_object().get_allowed_actions(request.user)['update']
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def form_valid(self, form):
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"""
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Write a log message if the form is valid.
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"""
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response = super(MotionUpdateView, self).form_valid(form)
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self.object.write_log([ugettext_noop('Motion updated')], self.request.user)
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if (config['motion_remove_supporters'] and self.object.state.allow_support and
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not self.request.user.has_perm('motion.can_manage_motion')):
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self.object.clear_supporters()
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self.object.write_log([ugettext_noop('All supporters removed')], self.request.user)
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return response
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motion_edit = MotionUpdateView.as_view()
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class MotionDeleteView(DeleteView):
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"""
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View to delete a motion.
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"""
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model = Motion
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success_url_name = 'motion_list'
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def has_permission(self, request, *args, **kwargs):
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"""
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Check if the request.user has the permission to delete the motion.
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"""
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return self.get_object().get_allowed_actions(request.user)['delete']
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def get_success_message(self):
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return _('%s was successfully deleted.') % _('Motion')
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motion_delete = MotionDeleteView.as_view()
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class VersionPermitView(SingleObjectMixin, QuestionMixin, RedirectView):
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"""
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View to permit a version of a motion.
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"""
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model = Motion
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question_url_name = 'motion_version_detail'
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success_url_name = 'motion_version_detail'
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success_message = ugettext_lazy('Version successfully permitted.')
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def get(self, *args, **kwargs):
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"""
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Set self.object to a motion.
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"""
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self.object = self.get_object()
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version_number = self.kwargs.get('version_number', None)
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try:
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self.version = self.object.versions.get(version_number=int(version_number))
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except MotionVersion.DoesNotExist:
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raise Http404('Version %s not found' % version_number)
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return super(VersionPermitView, self).get(*args, **kwargs)
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def get_url_name_args(self):
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"""
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Returns a list with arguments to create the success- and question_url.
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"""
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return [self.object.pk, self.version.version_number]
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def get_question(self):
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"""
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Return a string, shown to the user as question to permit the version.
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"""
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return _('Are you sure you want permit version %s?') % self.version.version_number
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def case_yes(self):
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"""
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Activate the version, if the user chooses 'yes'.
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"""
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self.object.active_version = self.version
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self.object.save(update_fields=['active_version'])
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self.object.write_log(
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message_list=[ugettext_noop('Version %d permitted')
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% self.version.version_number],
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person=self.request.user)
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version_permit = VersionPermitView.as_view()
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class VersionDiffView(DetailView):
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"""
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Show diff between two versions of a motion.
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"""
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permission_required = 'motion.can_see_motion'
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model = Motion
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template_name = 'motion/motion_diff.html'
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def get_context_data(self, **kwargs):
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"""
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Return the template context with versions and html diff strings.
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"""
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try:
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rev1 = int(self.request.GET['rev1'])
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rev2 = int(self.request.GET['rev2'])
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version_rev1 = self.object.versions.get(version_number=rev1)
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version_rev2 = self.object.versions.get(version_number=rev2)
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diff_text = htmldiff(version_rev1.text, version_rev2.text)
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diff_reason = htmldiff(version_rev1.reason, version_rev2.reason)
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except (KeyError, ValueError, MotionVersion.DoesNotExist):
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messages.error(self.request, _('At least one version number is not valid.'))
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version_rev1 = None
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version_rev2 = None
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diff_text = None
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diff_reason = None
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context = super(VersionDiffView, self).get_context_data(**kwargs)
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context.update({
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'version_rev1': version_rev1,
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'version_rev2': version_rev2,
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'diff_text': diff_text,
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'diff_reason': diff_reason,
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})
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return context
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version_diff = VersionDiffView.as_view()
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class SupportView(SingleObjectMixin, QuestionMixin, RedirectView):
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"""
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View to support or unsupport a motion.
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If self.support is True, the view will append a request.user to the supporter list.
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If self.support is False, the view will remove a request.user from the supporter list.
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"""
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permission_required = 'motion.can_support_motion'
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model = Motion
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support = True
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def get(self, request, *args, **kwargs):
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"""
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Set self.object to a motion.
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"""
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self.object = self.get_object()
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return super(SupportView, self).get(request, *args, **kwargs)
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def check_permission(self, request):
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"""
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Return True if the user can support or unsupport the motion. Else: False.
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"""
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allowed_actions = self.object.get_allowed_actions(request.user)
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if self.support and not allowed_actions['support']:
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messages.error(request, _('You can not support this motion.'))
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return False
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elif not self.support and not allowed_actions['unsupport']:
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messages.error(request, _('You can not unsupport this motion.'))
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return False
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else:
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return True
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def get_question(self):
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"""
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Return the question string.
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"""
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if self.support:
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return _('Do you really want to support this motion?')
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else:
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return _('Do you really want to unsupport this motion?')
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def case_yes(self):
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"""
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Append or remove the request.user from the motion.
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First the method checks the permissions, and writes a log message after
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appending or removing the user.
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"""
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if self.check_permission(self.request):
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user = self.request.user
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if self.support:
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self.object.support(person=user)
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self.object.write_log([ugettext_noop("Supporter: +%s") % user], user)
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else:
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self.object.unsupport(person=user)
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self.object.write_log([ugettext_noop("Supporter: -%s") % user], user)
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def get_success_message(self):
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"""
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Return the success message.
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"""
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if self.support:
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return _("You have supported this motion successfully.")
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else:
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return _("You have unsupported this motion successfully.")
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def get_redirect_url(self, **kwargs):
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"""
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Return the url, the view should redirect to.
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"""
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return self.object.get_absolute_url()
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motion_support = SupportView.as_view(support=True)
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motion_unsupport = SupportView.as_view(support=False)
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class PollCreateView(SingleObjectMixin, RedirectView):
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"""
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View to create a poll for a motion.
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"""
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permission_required = 'motion.can_manage_motion'
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model = Motion
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def get(self, request, *args, **kwargs):
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"""
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Set self.object to a motion.
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"""
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self.object = self.get_object()
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return super(PollCreateView, self).get(request, *args, **kwargs)
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def pre_redirect(self, request, *args, **kwargs):
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"""
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Create the poll for the motion.
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"""
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self.poll = self.object.create_poll()
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self.object.write_log([ugettext_noop("Poll created")], request.user)
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messages.success(request, _("New vote was successfully created."))
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def get_redirect_url(self, **kwargs):
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"""
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Return the URL to the EditView of the poll.
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"""
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return reverse('motion_poll_edit', args=[self.object.pk, self.poll.poll_number])
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poll_create = PollCreateView.as_view()
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class PollMixin(object):
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"""
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Mixin for the PollUpdateView and the PollDeleteView.
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"""
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permission_required = 'motion.can_manage_motion'
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success_url_name = 'motion_detail'
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def get_object(self):
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"""
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Return a MotionPoll object.
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Use the motion id and the poll_number from the url kwargs to get the
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object.
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"""
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return MotionPoll.objects.filter(
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motion=self.kwargs['pk'],
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poll_number=self.kwargs['poll_number']).get()
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def get_url_name_args(self):
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"""
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Return the arguments to create the url to the success_url.
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"""
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return [self.object.motion.pk]
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class PollUpdateView(PollMixin, PollFormView):
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"""
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View to update a MotionPoll.
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"""
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poll_class = MotionPoll
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"""
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Poll Class to use for this view.
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"""
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template_name = 'motion/poll_form.html'
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def get_context_data(self, **kwargs):
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"""
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Return the template context.
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Append the motion object to the context.
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"""
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context = super(PollUpdateView, self).get_context_data(**kwargs)
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context.update({
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'motion': self.poll.motion,
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'poll': self.poll})
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return context
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def form_valid(self, form):
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"""
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Write a log message, if the form is valid.
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"""
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value = super(PollUpdateView, self).form_valid(form)
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self.object.write_log([ugettext_noop('Poll updated')], self.request.user)
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return value
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poll_edit = PollUpdateView.as_view()
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class PollDeleteView(PollMixin, DeleteView):
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"""
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View to delete a MotionPoll.
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"""
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model = MotionPoll
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def case_yes(self):
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"""
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Write a log message, if the form is valid.
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"""
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super(PollDeleteView, self).case_yes()
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self.object.motion.write_log([ugettext_noop('Poll deleted')], self.request.user)
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def get_redirect_url(self, **kwargs):
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"""
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Return the URL to the DetailView of the motion.
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"""
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return reverse('motion_detail', args=[self.object.motion.pk])
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poll_delete = PollDeleteView.as_view()
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class PollPDFView(PollMixin, PDFView):
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"""
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Generates a ballotpaper.
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"""
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permission_required = 'motion.can_manage_motion'
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top_space = 0
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def get(self, *args, **kwargs):
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self.object = self.get_object()
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||
return super(PollPDFView, self).get(*args, **kwargs)
|
||
|
||
def get_filename(self):
|
||
"""
|
||
Return the filename for the PDF.
|
||
"""
|
||
return u'%s%s_%s' % (_("Motion"), str(self.object.poll_number), _("Poll"))
|
||
|
||
def get_template(self, buffer):
|
||
return SimpleDocTemplate(
|
||
buffer, topMargin=-6, bottomMargin=-6, leftMargin=0, rightMargin=0,
|
||
showBoundary=False)
|
||
|
||
def build_document(self, pdf_document, story):
|
||
pdf_document.build(story)
|
||
|
||
def append_to_pdf(self, pdf):
|
||
"""
|
||
Append PDF objects.
|
||
"""
|
||
motion_poll_to_pdf(pdf, self.object)
|
||
|
||
poll_pdf = PollPDFView.as_view()
|
||
|
||
|
||
class MotionSetStateView(SingleObjectMixin, RedirectView):
|
||
"""
|
||
View to set the state of a motion.
|
||
|
||
If self.reset is False, the new state is taken from url.
|
||
If self.reset is True, the default state is taken.
|
||
"""
|
||
permission_required = 'motion.can_manage_motion'
|
||
url_name = 'motion_detail'
|
||
model = Motion
|
||
reset = False
|
||
|
||
def pre_redirect(self, request, *args, **kwargs):
|
||
"""
|
||
Save the new state and write a log message.
|
||
"""
|
||
self.object = self.get_object()
|
||
try:
|
||
if self.reset:
|
||
self.object.reset_state()
|
||
else:
|
||
self.object.set_state(int(kwargs['state']))
|
||
except WorkflowError, e: # TODO: Is a WorkflowError still possible here?
|
||
messages.error(request, e)
|
||
else:
|
||
self.object.save(update_fields=['state'])
|
||
self.object.write_log(
|
||
message_list=[ugettext_noop('State changed to '), self.object.state.name],
|
||
person=self.request.user)
|
||
messages.success(request,
|
||
_('The state of the motion was set to %s.')
|
||
% html_strong(_(self.object.state.name)))
|
||
|
||
set_state = MotionSetStateView.as_view()
|
||
reset_state = MotionSetStateView.as_view(reset=True)
|
||
|
||
|
||
class CreateAgendaItemView(SingleObjectMixin, RedirectView):
|
||
"""
|
||
View to create and agenda item for a motion.
|
||
"""
|
||
permission_required = 'agenda.can_manage_agenda'
|
||
model = Motion
|
||
url_name = 'item_overview'
|
||
url_name_args = []
|
||
|
||
def get(self, request, *args, **kwargs):
|
||
"""
|
||
Set self.object to a motion.
|
||
"""
|
||
self.object = self.get_object()
|
||
return super(CreateAgendaItemView, self).get(request, *args, **kwargs)
|
||
|
||
def pre_redirect(self, request, *args, **kwargs):
|
||
"""
|
||
Create the agenda item.
|
||
"""
|
||
self.item = Item.objects.create(related_sid=self.object.sid)
|
||
self.object.write_log([ugettext_noop('Agenda item created')], self.request.user)
|
||
|
||
create_agenda_item = CreateAgendaItemView.as_view()
|
||
|
||
|
||
class MotionPDFView(SingleObjectMixin, PDFView):
|
||
"""
|
||
Create the PDF for one, or all motions.
|
||
|
||
If self.print_all_motions is True, the view returns a PDF with all motions.
|
||
|
||
If self.print_all_motions is False, the view returns a PDF with only one
|
||
motion.
|
||
"""
|
||
permission_required = 'motion.can_see_motion'
|
||
model = Motion
|
||
top_space = 0
|
||
print_all_motions = False
|
||
|
||
def get(self, request, *args, **kwargs):
|
||
"""
|
||
Set self.object to a motion.
|
||
"""
|
||
if not self.print_all_motions:
|
||
self.object = self.get_object()
|
||
return super(MotionPDFView, self).get(request, *args, **kwargs)
|
||
|
||
def get_filename(self):
|
||
"""
|
||
Return the filename for the PDF.
|
||
"""
|
||
if self.print_all_motions:
|
||
return _("Motions")
|
||
else:
|
||
return _("Motion: %s") % unicode(self.object)
|
||
|
||
def append_to_pdf(self, pdf):
|
||
"""
|
||
Append PDF objects.
|
||
"""
|
||
if self.print_all_motions:
|
||
motions_to_pdf(pdf)
|
||
else:
|
||
motion_to_pdf(pdf, self.object)
|
||
|
||
motion_list_pdf = MotionPDFView.as_view(print_all_motions=True)
|
||
motion_detail_pdf = MotionPDFView.as_view(print_all_motions=False)
|
||
|
||
|
||
class CategoryListView(ListView):
|
||
permission_required = 'motion.can_manage_motion'
|
||
model = Category
|
||
|
||
category_list = CategoryListView.as_view()
|
||
|
||
|
||
class CategoryCreateView(CreateView):
|
||
permission_required = 'motion.can_manage_motion'
|
||
model = Category
|
||
success_url_name = 'motion_category_list'
|
||
|
||
category_create = CategoryCreateView.as_view()
|
||
|
||
|
||
class CategoryUpdateView(UpdateView):
|
||
permission_required = 'motion.can_manage_motion'
|
||
model = Category
|
||
success_url_name = 'motion_category_list'
|
||
|
||
category_update = CategoryUpdateView.as_view()
|
||
|
||
|
||
class CategoryDeleteView(DeleteView):
|
||
permission_required = 'motion.can_manage_motion'
|
||
model = Category
|
||
question_url_name = 'motion_category_list'
|
||
success_url_name = 'motion_category_list'
|
||
|
||
category_delete = CategoryDeleteView.as_view()
|
||
|
||
|
||
class MotionCSVImportView(FormView):
|
||
"""
|
||
Import motions via csv.
|
||
"""
|
||
permission_required = 'motion.can_manage_motion'
|
||
template_name = 'motion/motion_form_csv_import.html'
|
||
form_class = MotionImportForm
|
||
success_url_name = 'motion_list'
|
||
|
||
def get_initial(self, *args, **kwargs):
|
||
"""
|
||
Sets the request user as initial for the default submitter.
|
||
"""
|
||
return_value = super(MotionCSVImportView, self).get_initial(*args, **kwargs)
|
||
return_value.update({'default_submitter': self.request.user.person_id})
|
||
return return_value
|
||
|
||
def form_valid(self, form):
|
||
"""
|
||
Processes the import function.
|
||
"""
|
||
count_success, count_lines, error_messages, warning_messages = import_motions(
|
||
self.request.FILES['csvfile'],
|
||
default_submitter=form.cleaned_data['default_submitter'],
|
||
override=form.cleaned_data['override'],
|
||
importing_person=self.request.user)
|
||
for message in error_messages:
|
||
messages.error(self.request, message)
|
||
for message in warning_messages:
|
||
messages.warning(self.request, message)
|
||
if count_success:
|
||
messages.success(
|
||
self.request,
|
||
"<strong>%s</strong><br>%s" % (
|
||
_('Summary'),
|
||
_('%(counts)d of %(total)d motions successfully imported.')
|
||
% {'counts': count_success, 'total': count_lines}))
|
||
return super(MotionCSVImportView, self).form_valid(form)
|
||
|
||
motion_csv_import = MotionCSVImportView.as_view()
|
||
|
||
|
||
def register_tab(request):
|
||
"""
|
||
Return the motion tab.
|
||
"""
|
||
# TODO: Find a better way to set the selected var.
|
||
return Tab(
|
||
title=_('Motions'),
|
||
app='motion',
|
||
url=reverse('motion_list'),
|
||
permission=request.user.has_perm('motion.can_see_motion'),
|
||
selected=request.path.startswith('/motion/'))
|
||
|
||
|
||
def get_widgets(request):
|
||
"""
|
||
Return the motion widgets for the dashboard.
|
||
|
||
There is only one widget. It shows all motions.
|
||
"""
|
||
return [Widget(
|
||
name='motions',
|
||
display_name=_('Motions'),
|
||
template='motion/widget.html',
|
||
context={'motions': Motion.objects.all()},
|
||
permission_required='projector.can_manage_projector')]
|