OpenSlides/openslides/topics/projector.py
2019-02-22 10:40:28 +01:00

41 lines
1.1 KiB
Python

from typing import Any, Dict
from ..utils.projector import (
AllData,
ProjectorElementException,
register_projector_slide,
)
# Important: All functions have to be prune. This means, that thay can only
# access the data, that they get as argument and do not have any
# side effects. They are called from an async context. So they have
# to be fast!
def topic_slide(
all_data: AllData, element: Dict[str, Any], projector_id: int
) -> Dict[str, Any]:
"""
Topic slide.
The returned dict can contain the following fields:
* title
* text
"""
topic_id = element.get("id")
if topic_id is None:
raise ProjectorElementException("id is required for topic slide")
try:
topic = all_data["topics/topic"][topic_id]
except KeyError:
raise ProjectorElementException(f"topic with id {topic_id} does not exist")
return {"title": topic["title"], "text": topic["text"]}
def register_projector_slides() -> None:
register_projector_slide("topics/topic", topic_slide)