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website-v2/news/views.py

35 lines
998 B
Python

from django.views.generic import DetailView, ListView
from django.utils.timezone import now
from .models import Entry
def get_published_or_none(sibling_getter):
"""Helper method to get next/prev published sibling of a given entry."""
try:
result = sibling_getter(publish_at__lte=now())
except Entry.DoesNotExist:
result = None
return result
class EntryListView(ListView):
model = Entry
template_name = "news/list.html"
ordering = ["-publish_at"]
paginate_by = 10
def get_queryset(self):
return super().get_queryset().filter(publish_at__lte=now())
class EntryDetailView(DetailView):
model = Entry
template_name = "news/detail.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["next"] = get_published_or_none(self.object.get_next_by_publish_at)
context["prev"] = get_published_or_none(self.object.get_previous_by_publish_at)
return context