#!/usr/bin/env python # -*- coding: utf-8 -*- """ openslides.motion.views ~~~~~~~~~~~~~~~~~~~~~~~ Views for the motion app. The views are automaticly imported from openslides.motion.urls. :copyright: (c) 2011-2013 by the OpenSlides team, see AUTHORS. :license: GNU GPL, see LICENSE for more details. """ from django.core.urlresolvers import reverse from django.contrib import messages from django.db import transaction from django.db.models import Model from django.utils.translation import ugettext as _, ugettext_lazy, ugettext_noop from django.views.generic.detail import SingleObjectMixin from django.http import Http404 from reportlab.platypus import SimpleDocTemplate from openslides.utils.pdf import stylesheet from openslides.utils.views import ( TemplateView, RedirectView, UpdateView, CreateView, DeleteView, PDFView, DetailView, ListView, FormView, QuestionMixin, SingleObjectMixin) from openslides.utils.template import Tab from openslides.utils.utils import html_strong, htmldiff from openslides.poll.views import PollFormView from openslides.projector.api import get_active_slide from openslides.projector.projector import Widget, SLIDE from openslides.config.api import config from openslides.agenda.models import Item from .models import (Motion, MotionSubmitter, MotionSupporter, MotionPoll, MotionVersion, State, WorkflowError, Category) from .forms import (BaseMotionForm, MotionSubmitterMixin, MotionSupporterMixin, MotionDisableVersioningMixin, MotionCategoryMixin, MotionIdentifierMixin, MotionSetWorkflowMixin, MotionImportForm) from .pdf import motions_to_pdf, motion_to_pdf, motion_poll_to_pdf from .csv_import import import_motions class MotionListView(ListView): """View, to list all motions.""" permission_required = 'motion.can_see_motion' model = Motion motion_list = MotionListView.as_view() class GetVersionMixin(object): """Mixin to set a specific version to a motion.""" def get_object(self): """Return a Motion object. The id is taken from the url and the version is set to the version with the 'version_number' from the URL.""" object = super(GetVersionMixin, self).get_object() version_number = self.kwargs.get('version_number', None) if version_number is not None: try: object.version = int(version_number) except MotionVersion.DoesNotExist: raise Http404('Version %s not found' % version_number) return object class MotionDetailView(GetVersionMixin, DetailView): """Show one motion.""" permission_required = 'motion.can_see_motion' model = Motion def get_context_data(self, **kwargs): """Return the template context. Append the allowed actions for the motion to the context. """ context = super(MotionDetailView, self).get_context_data(**kwargs) context['allowed_actions'] = self.object.get_allowed_actions(self.request.user) return context motion_detail = MotionDetailView.as_view() class MotionMixin(object): """ Mixin for MotionViewsClasses to save the version data. """ def manipulate_object(self, form): """ Saves the version data into the motion object before it is saved in the Database. Does also set category, identifier and new workflow if given. """ super(MotionMixin, self).manipulate_object(form) for attr in ['title', 'text', 'reason']: setattr(self.object, attr, form.cleaned_data[attr]) if type(self) == MotionCreateView: self.object.new_version else: for attr in ['title', 'text', 'reason']: if getattr(self.object, attr) != getattr(self.object.last_version, attr): new_data = True break else: new_data = False if new_data and self.object.state.versioning and not form.cleaned_data.get('disable_versioning', False): self.object.new_version try: self.object.category = form.cleaned_data['category'] except KeyError: pass try: self.object.identifier = form.cleaned_data['identifier'] except KeyError: pass workflow = form.cleaned_data.get('set_workflow', None) if workflow: self.object.reset_state(workflow) def post_save(self, form): """ Save the submitter an the supporter so the motion. """ super(MotionMixin, self).post_save(form) # TODO: only delete and save neccessary submitters and supporter if 'submitter' in form.cleaned_data: self.object.submitter.all().delete() MotionSubmitter.objects.bulk_create( [MotionSubmitter(motion=self.object, person=person) for person in form.cleaned_data['submitter']]) if 'supporter' in form.cleaned_data: self.object.supporter.all().delete() MotionSupporter.objects.bulk_create( [MotionSupporter(motion=self.object, person=person) for person in form.cleaned_data['supporter']]) def get_form_class(self): """ Return the FormClass to Create or Update the Motion. forms.BaseMotionForm is the base for the Class, and some FormMixins will be mixed in dependence of some config values. See motion.forms for more information on the mixins. """ form_classes = [] if (self.request.user.has_perm('motion.can_manage_motion') and (config['motion_identifier'] == 'manually' or type(self) == MotionUpdateView)): form_classes.append(MotionIdentifierMixin) form_classes.append(BaseMotionForm) if self.request.user.has_perm('motion.can_manage_motion'): form_classes.append(MotionSubmitterMixin) form_classes.append(MotionCategoryMixin) if config['motion_min_supporters'] > 0: form_classes.append(MotionSupporterMixin) if self.object: if config['motion_allow_disable_versioning'] and self.object.state.versioning: form_classes.append(MotionDisableVersioningMixin) if self.request.user.has_perm('motion.can_manage_motion'): form_classes.append(MotionSetWorkflowMixin) return type('MotionForm', tuple(form_classes), {}) class MotionCreateView(MotionMixin, CreateView): """View to create a motion.""" model = Motion def has_permission(self, request, *args, **kwargs): """ Checks whether the requesting user can submit a new motion. He needs at least the permission 'motion.can_create_motion'. If the submitting of new motions by non-staff users is stopped via config variable 'motion_stop_submitting', the requesting user needs also to have 'motion.can_manage_motion'. """ if request.user.has_perm('motion.can_create_motion'): return not config['motion_stop_submitting'] or request.user.has_perm('motion.can_manage_motion') return False def form_valid(self, form): """Write a log message, if the form is valid.""" value = super(MotionCreateView, self).form_valid(form) self.object.write_log(ugettext_noop('Motion created'), self.request.user) return value def post_save(self, form): super(MotionCreateView, self).post_save(form) if not 'submitter' in form.cleaned_data: self.object.add_submitter(self.request.user) motion_create = MotionCreateView.as_view() class MotionUpdateView(MotionMixin, UpdateView): """View to update a motion.""" model = Motion def has_permission(self, request, *args, **kwargs): """Check, if the request.user has the permission to edit the motion.""" return self.get_object().get_allowed_actions(request.user)['edit'] def form_valid(self, form): """Write a log message, if the form is valid.""" value = super(MotionUpdateView, self).form_valid(form) self.object.write_log(ugettext_noop('Motion updated'), self.request.user) return value motion_edit = MotionUpdateView.as_view() class MotionDeleteView(DeleteView): """View to delete a motion.""" model = Motion success_url_name = 'motion_list' def has_permission(self, request, *args, **kwargs): """Check if the request.user has the permission to delete the motion.""" return self.get_object().get_allowed_actions(request.user)['delete'] motion_delete = MotionDeleteView.as_view() class VersionPermitView(GetVersionMixin, SingleObjectMixin, QuestionMixin, RedirectView): """ View to permit a version of a motion. """ model = Motion question_url_name = 'motion_version_detail' success_url_name = 'motion_version_detail' success_message = ugettext_lazy('Version successfully permitted.') def get(self, *args, **kwargs): """ Set self.object to a motion. """ self.object = self.get_object() return super(VersionPermitView, self).get(*args, **kwargs) def get_url_name_args(self): """ Return a list with arguments to create the success- and question_url. """ return [self.object.pk, self.object.version.version_number] def get_question(self): """ Return a string, shown to the user as question to permit the version. """ return _('Are you sure you want permit Version %s?') % self.object.version.version_number def case_yes(self): """ Activate the version, if the user chooses 'yes'. """ self.object.set_active_version(self.object.version) self.object.save(ignore_version_data=True) self.object.write_log( message=ugettext_noop('Version %d permitted') % self.object.version.version_number, person=self.request.user) version_permit = VersionPermitView.as_view() class VersionRejectView(GetVersionMixin, SingleObjectMixin, QuestionMixin, RedirectView): """ View to reject a version. """ model = Motion question_url_name = 'motion_version_detail' success_url_name = 'motion_version_detail' def get(self, *args, **kwargs): """ Set self.object to a motion. """ self.object = self.get_object() return super(VersionRejectView, self).get(*args, **kwargs) def get_url_name_args(self): """ Return a list with arguments to create the success- and question_url. """ return [self.object.pk, self.object.version.version_number] def get_question(self): return _('Are you sure you want reject Version %s?') % self.object.version.version_number def case_yes(self): """ Reject the version, if the user chooses 'yes'. """ self.object.reject_version(self.object.version) self.object.save(ignore_version_data=True) self.object.write_log( message=ugettext_noop('Version %d rejected') % self.object.version.version_number, person=self.request.user) version_reject = VersionRejectView.as_view() class VersionDiffView(DetailView): """Show diff between two versions of a motion.""" permission_required = 'motion.can_see_motion' model = Motion template_name = 'motion/motion_diff.html' def get_context_data(self, **kwargs): """Return the template context with versions and html diff strings.""" try: rev1 = int(self.request.GET['rev1']) rev2 = int(self.request.GET['rev2']) version_rev1 = self.object.versions.get(version_number=self.request.GET['rev1']) version_rev2 = self.object.versions.get(version_number=self.request.GET['rev2']) diff_text = htmldiff(version_rev1.text, version_rev2.text) diff_reason = htmldiff(version_rev1.reason, version_rev2.reason) except (KeyError, ValueError, MotionVersion.DoesNotExist): messages.error(self.request, _('At least one version number is not valid.')) version_rev1 = None version_rev2 = None diff_text = None diff_reason = None context = super(VersionDiffView, self).get_context_data(**kwargs) context.update({ 'version_rev1': version_rev1, 'version_rev2': version_rev2, 'diff_text': diff_text, 'diff_reason': diff_reason, }) return context version_diff = VersionDiffView.as_view() class SupportView(SingleObjectMixin, QuestionMixin, RedirectView): """View to support or unsupport a motion. If self.support is True, the view will append a request.user to the supporter list. If self.support is False, the view will remove a request.user from the supporter list. """ permission_required = 'motion.can_support_motion' model = Motion support = True def get(self, request, *args, **kwargs): """Set self.object to a motion.""" self.object = self.get_object() return super(SupportView, self).get(request, *args, **kwargs) def check_permission(self, request): """Return True if the user can support or unsupport the motion. Else: False.""" allowed_actions = self.object.get_allowed_actions(request.user) if self.support and not allowed_actions['support']: messages.error(request, _('You can not support this motion.')) return False elif not self.support and not allowed_actions['unsupport']: messages.error(request, _('You can not unsupport this motion.')) return False else: return True def get_question(self): """Return the question string.""" if self.support: return _('Do you really want to support this motion?') else: return _('Do you really want to unsupport this motion?') def case_yes(self): """Append or remove the request.user from the motion. First the method checks the permissions, and writes a log message after appending or removing the user. """ if self.check_permission(self.request): user = self.request.user if self.support: self.object.support(person=user) self.object.write_log(ugettext_noop("Supporter: +%s") % user, user) else: self.object.unsupport(person=user) self.object.write_log(ugettext_noop("Supporter: -%s") % user, user) def get_success_message(self): """Return the success message.""" if self.support: return _("You have supported this motion successfully.") else: return _("You have unsupported this motion successfully.") def get_redirect_url(self, **kwargs): """Return the url, the view should redirect to.""" return self.object.get_absolute_url() motion_support = SupportView.as_view(support=True) motion_unsupport = SupportView.as_view(support=False) class PollCreateView(SingleObjectMixin, RedirectView): """View to create a poll for a motion.""" permission_required = 'motion.can_manage_motion' model = Motion def get(self, request, *args, **kwargs): """Set self.object to a motion.""" self.object = self.get_object() return super(PollCreateView, self).get(request, *args, **kwargs) def pre_redirect(self, request, *args, **kwargs): """Create the poll for the motion.""" self.poll = self.object.create_poll() self.object.write_log(ugettext_noop("Poll created"), request.user) messages.success(request, _("New vote was successfully created.")) def get_redirect_url(self, **kwargs): """Return the URL to the EditView of the poll.""" return reverse('motion_poll_edit', args=[self.object.pk, self.poll.poll_number]) poll_create = PollCreateView.as_view() class PollMixin(object): """ Mixin for the PollUpdateView and the PollDeleteView. """ permission_required = 'motion.can_manage_motion' success_url_name = 'motion_detail' def get_object(self): """ Return a MotionPoll object. Use the motion id and the poll_number from the url kwargs to get the object. """ return MotionPoll.objects.filter( motion=self.kwargs['pk'], poll_number=self.kwargs['poll_number']).get() def get_url_name_args(self): """ Return the arguments to create the url to the success_url. """ return [self.object.motion.pk] class PollUpdateView(PollMixin, PollFormView): """ View to update a MotionPoll. """ poll_class = MotionPoll """ Poll Class to use for this view. """ template_name = 'motion/poll_form.html' def get_context_data(self, **kwargs): """ Return the template context. Append the motion object to the context. """ context = super(PollUpdateView, self).get_context_data(**kwargs) context.update({ 'motion': self.poll.motion, 'poll': self.poll}) return context def form_valid(self, form): """ Write a log message, if the form is valid. """ value = super(PollUpdateView, self).form_valid(form) self.object.write_log(ugettext_noop('Poll updated'), self.request.user) return value poll_edit = PollUpdateView.as_view() class PollDeleteView(PollMixin, DeleteView): """ View to delete a MotionPoll. """ model = MotionPoll def case_yes(self): """ Write a log message, if the form is valid. """ super(PollDeleteView, self).case_yes() self.object.write_log(ugettext_noop('Poll deleted'), self.request.user) def get_redirect_url(self, **kwargs): """ Return the URL to the DetailView of the motion. """ return reverse('motion_detail', args=[self.object.motion.pk]) poll_delete = PollDeleteView.as_view() class PollPDFView(PollMixin, PDFView): """ Generates a ballotpaper. """ permission_required = 'motion.can_manage_motion' top_space = 0 def get(self, *args, **kwargs): self.object = self.get_object() 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(ignore_version_data=True) # TODO: the state is not translated self.object.write_log(ugettext_noop('State changed to %s') % self.object.state.name, self.request.user) messages.success(request, _('Motion status was set to: %s.' % html_strong(self.object.state))) 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, 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, _('%d motions were successfully imported.') % count_success) 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')]