OpenSlides/openslides/agenda/projector.py

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from openslides.core.exceptions import ProjectorException
from openslides.utils.projector import ProjectorElement, ProjectorRequirement
from .models import Item
from .views import ItemViewSet
class ItemListSlide(ProjectorElement):
"""
Slide definitions for Item model.
This is only for list slides.
Set 'id' to None to get a list slide of all root items. Set 'id' to an
integer to get a list slide of the children of the metioned item.
Additionally set 'tree' to True to get also children of children.
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"""
name = 'agenda/item-list'
def get_context(self):
pk = self.config_entry.get('id')
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if pk is not None:
# Children slide.
if not Item.objects.filter(pk=pk).exists():
raise ProjectorException('Item does not exist.')
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def get_requirements(self, config_entry):
pk = config_entry.get('id', 'tree')
if pk is None or config_entry.get('tree', False):
# Root list slide or slide with tree.
yield ProjectorRequirement(
view_class=ItemViewSet,
view_action='tree')
# Root list slide and children list slide.
# Related objects like users and tags are not unlocked.
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yield ProjectorRequirement(
view_class=ItemViewSet,
view_action='list')
class ItemDetailSlide(ProjectorElement):
"""
Slide definitions for Item model.
This is only for list of speakers slide. You have to set 'id'.
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"""
name = 'agenda/item'
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def get_context(self):
pk = self.config_entry.get('id')
if pk is None:
raise ProjectorException('Id must not be None.')
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if not Item.objects.filter(pk=pk).exists():
raise ProjectorException('Item does not exist.')
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def get_requirements(self, config_entry):
pk = config_entry.get('id')
if pk is not None:
# List of speakers slide.
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try:
item = Item.objects.get(pk=pk)
except Item.DoesNotExist:
# Item does not exist. Just do nothing.
pass
else:
yield ProjectorRequirement(
view_class=ItemViewSet,
view_action='retrieve',
pk=str(item.pk))
for speaker in item.speakers.all():
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yield ProjectorRequirement(
view_class=speaker.user.get_view_class(),
view_action='retrieve',
pk=str(speaker.user_id))