OpenSlides/openslides/agenda/apps.py

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from typing import Any, Dict, Set
from django.apps import AppConfig
from ..utils.projector import register_projector_elements
class AgendaAppConfig(AppConfig):
name = 'openslides.agenda'
verbose_name = 'OpenSlides Agenda'
angular_site_module = True
angular_projector_module = True
def ready(self):
# Import all required stuff.
from django.db.models.signals import pre_delete, post_save
from ..core.signals import permission_change
from ..utils.rest_api import router
from .projector import get_projector_elements
from .signals import (
get_permission_change_data,
listen_to_related_object_post_delete,
listen_to_related_object_post_save)
from .views import ItemViewSet
from ..utils.access_permissions import required_user
# Define projector elements.
register_projector_elements(get_projector_elements())
# Connect signals.
post_save.connect(
listen_to_related_object_post_save,
dispatch_uid='listen_to_related_object_post_save')
pre_delete.connect(
listen_to_related_object_post_delete,
dispatch_uid='listen_to_related_object_post_delete')
permission_change.connect(
get_permission_change_data,
dispatch_uid='agenda_get_permission_change_data')
# Register viewsets.
router.register(self.get_model('Item').get_collection_string(), ItemViewSet)
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# register required_users
required_user.add_collection_string(self.get_model('Item').get_collection_string(), required_users)
def get_config_variables(self):
from .config_variables import get_config_variables
return get_config_variables()
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def get_startup_elements(self):
"""
Yields all Cachables required on startup i. e. opening the websocket
connection.
"""
yield self.get_model('Item')
def required_users(element: Dict[str, Any]) -> Set[int]:
"""
Returns all user ids that are displayed as speaker in the given element.
"""
return set(speaker['user_id'] for speaker in element['speakers'])