OpenSlides/openslides/assignments/projector.py
2016-09-23 14:36:26 +02:00

39 lines
1.5 KiB
Python

from ..core.exceptions import ProjectorException
from ..utils.projector import ProjectorElement
from .models import Assignment
class AssignmentSlide(ProjectorElement):
"""
Slide definitions for Assignment model.
"""
name = 'assignments/assignment'
def check_data(self):
if not Assignment.objects.filter(pk=self.config_entry.get('id')).exists():
raise ProjectorException('Election does not exist.')
def get_requirements(self, config_entry):
try:
assignment = Assignment.objects.get(pk=config_entry.get('id'))
except Assignment.DoesNotExist:
# Assignment does not exist. Just do nothing.
pass
else:
yield assignment
yield assignment.agenda_item
for user in assignment.related_users.all():
# Yield user instances of current candidates (i. e. future
# poll participants) and elected persons (i. e. former poll
# participants).
yield user
for poll in assignment.polls.all().prefetch_related('options'):
# Yield user instances of the participants of all polls.
for option in poll.options.all():
yield option.candidate
def need_full_update_for_this(self, collection_element):
# Full update if assignment changes because then we may have new
# candidates and therefor need new users.
return collection_element.collection_string == Assignment.get_collection_string()