OpenSlides/openslides/topics/models.py
2020-03-17 07:24:36 +01:00

50 lines
1.4 KiB
Python

from django.db import models
from openslides.utils.manager import BaseManager
from ..agenda.mixins import AgendaItemWithListOfSpeakersMixin
from ..mediafiles.models import Mediafile
from ..utils.models import RESTModelMixin
from .access_permissions import TopicAccessPermissions
class TopicManager(BaseManager):
"""
Customized model manager to support our get_prefetched_queryset method.
"""
def get_prefetched_queryset(self, *args, **kwargs):
"""
Returns the normal queryset with all topics. In the background all
attachments and the related agenda item are prefetched from the
database.
"""
return (
super()
.get_prefetched_queryset(*args, **kwargs)
.prefetch_related("attachments", "lists_of_speakers", "agenda_items")
)
class Topic(RESTModelMixin, AgendaItemWithListOfSpeakersMixin, models.Model):
"""
Model for slides with custom content. Used to be called custom slide.
"""
access_permissions = TopicAccessPermissions()
objects = TopicManager()
title = models.CharField(max_length=256)
text = models.TextField(blank=True)
attachments = models.ManyToManyField(Mediafile, blank=True)
class Meta:
default_permissions = ()
def __str__(self):
return self.title
def get_title_information(self):
return {"title": self.title}