2017-08-30 00:07:54 +02:00
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from typing import Generator, Type
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2016-09-17 22:26:23 +02:00
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from ..core.exceptions import ProjectorException
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from ..utils.projector import ProjectorElement
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2016-09-23 22:09:06 +02:00
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from .models import Assignment, AssignmentPoll
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2015-06-24 22:11:54 +02:00
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2015-06-25 20:36:46 +02:00
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class AssignmentSlide(ProjectorElement):
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2015-06-24 22:11:54 +02:00
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"""
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2015-06-25 20:36:46 +02:00
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Slide definitions for Assignment model.
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2016-09-23 22:09:06 +02:00
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You can send a poll id to get a poll slide.
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2015-06-24 22:11:54 +02:00
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"""
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name = 'assignments/assignment'
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2016-02-27 20:25:06 +01:00
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def check_data(self):
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2016-09-17 22:26:23 +02:00
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if not Assignment.objects.filter(pk=self.config_entry.get('id')).exists():
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raise ProjectorException('Election does not exist.')
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2016-09-23 22:09:06 +02:00
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poll_id = self.config_entry.get('poll')
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if poll_id:
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# Poll slide.
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try:
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poll = AssignmentPoll.objects.get(pk=poll_id)
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except AssignmentPoll.DoesNotExist:
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raise ProjectorException('Poll does not exist.')
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if poll.assignment_id != self.config_entry.get('id'):
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raise ProjectorException('Assignment id and poll do not belong together.')
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2015-06-24 22:11:54 +02:00
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2016-10-05 18:25:50 +02:00
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def update_data(self):
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data = None
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try:
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assignment = Assignment.objects.get(pk=self.config_entry.get('id'))
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except Assignment.DoesNotExist:
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# Assignment does not exist, so just do nothing.
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pass
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else:
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data = {'agenda_item_id': assignment.agenda_item_id}
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return data
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2017-08-30 00:07:54 +02:00
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def get_projector_elements() -> Generator[Type[ProjectorElement], None, None]:
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yield AssignmentSlide
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