OpenSlides/openslides/motions/projector.py

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Python
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import re
from typing import Generator, Type
from ..core.config import config
from ..core.exceptions import ProjectorException
from ..utils.projector import ProjectorElement
from .models import Motion, MotionBlock, MotionChangeRecommendation, Workflow
class MotionSlide(ProjectorElement):
"""
Slide definitions for Motion model.
"""
name = 'motions/motion'
def check_data(self):
if not Motion.objects.filter(pk=self.config_entry.get('id')).exists():
raise ProjectorException('Motion does not exist.')
def get_requirements(self, config_entry):
try:
motion = Motion.objects.get(pk=config_entry.get('id'))
except Motion.DoesNotExist:
# Motion does not exist. Just do nothing.
pass
else:
yield motion
yield motion.agenda_item
yield motion.state.workflow
yield from self.required_motions_for_state_and_recommendation(motion)
yield from motion.submitters.all()
yield from motion.supporters.all()
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yield from MotionChangeRecommendation.objects.filter(motion_version=motion.get_active_version().id)
def required_motions_for_state_and_recommendation(self, motion):
"""
Returns a list of motions needed for the projector, because they are mentioned
in additional fieds for the state and recommendation.
Keep the motion_syntax syncronized with the MotionStateAndRecommendationParser on the client.
"""
# get the comments field for state and recommendation
motion_syntax = re.compile('\[motion:(\d+)\]')
fields = config['motions_comments']
state_field_id = None
recommendation_field_id = None
for id, field in fields.items():
if field.get('forState', False):
state_field_id = id
if field.get('forRecommendation', False):
recommendation_field_id = id
# extract all mentioned motions from the state and recommendation
motion_ids = set()
if state_field_id is not None:
state_text = motion.comments.get(state_field_id)
motion_ids.update([int(id) for id in motion_syntax.findall(state_text)])
if recommendation_field_id is not None:
recommendation_text = motion.comments.get(recommendation_field_id)
motion_ids.update([int(id) for id in motion_syntax.findall(recommendation_text)])
# return all motions
return Motion.objects.filter(pk__in=motion_ids)
def get_collection_elements_required_for_this(self, collection_element, config_entry):
output = super().get_collection_elements_required_for_this(collection_element, config_entry)
# Full update if motion changes because then we may have new
# submitters or supporters and therefor need new users.
#
# Add some logic here if we support live changing of workflows later.
#
if collection_element.collection_string == Motion.get_collection_string() and collection_element.id == config_entry.get('id'):
output.extend(self.get_requirements_as_collection_elements(config_entry))
return output
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def update_data(self):
data = None
try:
motion = Motion.objects.get(pk=self.config_entry.get('id'))
except Motion.DoesNotExist:
# Motion does not exist, so just do nothing.
pass
else:
data = {'agenda_item_id': motion.agenda_item_id}
return data
class MotionBlockSlide(ProjectorElement):
"""
Slide definitions for a block of motions (MotionBlock model).
"""
name = 'motions/motion-block'
def check_data(self):
if not MotionBlock.objects.filter(pk=self.config_entry.get('id')).exists():
raise ProjectorException('MotionBlock does not exist.')
def get_requirements(self, config_entry):
try:
motion_block = MotionBlock.objects.get(pk=config_entry.get('id'))
except MotionBlock.DoesNotExist:
# MotionBlock does not exist. Just do nothing.
pass
else:
yield motion_block
yield motion_block.agenda_item
yield from motion_block.motion_set.all()
yield from Workflow.objects.all()
def get_collection_elements_required_for_this(self, collection_element, config_entry):
output = super().get_collection_elements_required_for_this(collection_element, config_entry)
# Send all changed motions to the projector, because it may be appended
# or removed from the block.
if collection_element.collection_string == Motion.get_collection_string():
output.append(collection_element)
return output
def update_data(self):
data = None
try:
motion_block = MotionBlock.objects.get(pk=self.config_entry.get('id'))
except MotionBlock.DoesNotExist:
# MotionBlock does not exist, so just do nothing.
pass
else:
data = {'agenda_item_id': motion_block.agenda_item_id}
return data
def get_projector_elements() -> Generator[Type[ProjectorElement], None, None]:
yield MotionSlide
yield MotionBlockSlide