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from django import forms
from django.contrib.auth.decorators import permission_required
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.template.defaultfilters import slugify
from django.views.decorators.cache import never_cache
from django.views.generic import list_detail, create_update
from django.views.generic.simple import direct_to_template
import markdown
from .models import News
def view_redirect(request, object_id):
newsitem = get_object_or_404(News, pk=object_id)
return redirect(newsitem, permanent=True)
def view(request, slug=None):
return list_detail.object_detail(request, News.objects.all(),
slug=slug,
template_name="news/view.html",
template_object_name='news')
#TODO: May as well use a date-based list here sometime
def news_list(request):
return list_detail.object_list(request,
News.objects.all().select_related('author').defer('content'),
paginate_by=50,
template_name="news/list.html",
template_object_name="news")
class NewsForm(forms.ModelForm):
class Meta:
model = News
exclude = ('id', 'slug', 'author', 'postdate')
def find_unique_slug(newsitem):
'''Attempt to find a unique slug for this news item.'''
existing = list(News.objects.values_list('slug', flat=True).distinct())
suffixed = slug = slugify(newsitem.title)
suffix = 0
while suffixed in existing:
suffix += 1
suffixed = "%s-%d" % (slug, suffix)
return suffixed
@permission_required('news.add_news')
@never_cache
def add(request):
if request.POST:
form = NewsForm(request.POST)
if form.is_valid():
newsitem = form.save(commit=False)
newsitem.author = request.user
newsitem.slug = find_unique_slug(newsitem)
newsitem.save()
return redirect(newsitem)
else:
form = NewsForm()
return direct_to_template(request, 'news/add.html', { 'form': form })
@permission_required('news.delete_news')
@never_cache
def delete(request, slug):
return create_update.delete_object(request,
News,
slug=slug,
post_delete_redirect='/news/',
template_name='news/delete.html',
template_object_name='news')
@permission_required('news.change_news')
@never_cache
def edit(request, slug):
return create_update.update_object(request,
slug=slug,
form_class=NewsForm,
template_name="news/add.html")
@permission_required('news.change_news')
@never_cache
def preview(request):
markup = ''
if request.POST:
data = request.POST.get('data', '')
markup = markdown.markdown(data)
return HttpResponse(markup)
# vim: set ts=4 sw=4 et:
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