summaryrefslogtreecommitdiffstats
path: root/news/views.py
blob: 52182800d3b0baf415c728fe82c92eabbe94e5b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
import markdown

from django import forms
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.template.defaultfilters import slugify
from django.views.decorators.http import require_POST
from django.views.generic import (DetailView, ListView,
        CreateView, UpdateView, DeleteView)

from .models import News


def find_unique_slug(newsitem):
    '''Attempt to find a unique slug for this news item.'''
    existing = list(News.objects.values_list(
        'slug', flat=True).order_by().distinct())

    suffixed = slug = slugify(newsitem.title)
    suffix = 0
    while suffixed in existing:
        suffix += 1
        suffixed = "%s-%d" % (slug, suffix)

    return suffixed


class NewsForm(forms.ModelForm):
    class Meta:
        model = News
        exclude = ('id', 'slug', 'author', 'postdate')


class NewsDetailView(DetailView):
    model = News
    template_name = "news/view.html"


class NewsListView(ListView):
    queryset = News.objects.all().select_related('author').defer('content')
    template_name = "news/list.html"
    paginate_by = 50


class NewsCreateView(CreateView):
    model = News
    form_class = NewsForm
    template_name = "news/add.html"

    def form_valid(self, form):
        # special logic, we auto-fill the author and slug fields
        newsitem = form.save(commit=False)
        newsitem.author = self.request.user
        newsitem.slug = find_unique_slug(newsitem)
        newsitem.save()
        return super(NewsCreateView, self).form_valid(form)


class NewsEditView(UpdateView):
    model = News
    form_class = NewsForm
    template_name = "news/add.html"


class NewsDeleteView(DeleteView):
    model = News
    template_name = "news/delete.html"
    success_url = "/news/"


def view_redirect(request, object_id):
    newsitem = get_object_or_404(News, pk=object_id)
    return redirect(newsitem, permanent=True)


@require_POST
def preview(request):
    data = request.POST.get('data', '')
    markup = markdown.markdown(data, safe_mode=False, enable_attributes=False)
    return HttpResponse(markup)

# vim: set ts=4 sw=4 et: