contrib/penfield/models.py

   1 from django.db import models
   2 from philo.models import Entity, MultiNode, Template, register_value_model
   3 from django.contrib.auth.models import User
   4 from django.conf.urls.defaults import url, patterns
   5 from django.http import Http404, HttpResponse
   6 from django.template import RequestContext
   7 from datetime import datetime
   8
   9
  10 class Titled(models.Model):
  11         title = models.CharField(max_length=255)
  12         slug = models.SlugField()
  13
  14         class Meta:
  15                 abstract = True
  16
  17
  18 class Blog(Entity, Titled):
  19         pass
  20
  21
  22 class BlogEntry(Entity, Titled):
  23         blog = models.ForeignKey(Blog, related_name='entries')
  24         author = models.ForeignKey(User, related_name='blogentries')
  25         date = models.DateTimeField(default=datetime.now)
  26         content = models.TextField()
  27         excerpt = models.TextField()
  28
  29
  30 register_value_model(BlogEntry)
  31
  32
  33 class BlogNode(MultiNode):
  34         PERMALINK_STYLE_CHOICES = (
  35                 ('D', 'Year, month, and day'),
  36                 ('M', 'Year and month'),
  37                 ('Y', 'Year'),
  38                 ('B', 'Custom base'),
  39                 ('N', 'No base')
  40         )
  41
  42         blog = models.ForeignKey(Blog, related_name='nodes')
  43
  44         index_template = models.ForeignKey(Template, related_name='blog_index_related')
  45         archive_template = models.ForeignKey(Template, related_name='blog_archive_related')
  46         tag_template = models.ForeignKey(Template, related_name='blog_tag_related')
  47         entry_template = models.ForeignKey(Template, related_name='blog_entry_related')
  48
  49         entry_permalink_style = models.CharField(max_length=1, choices=PERMALINK_STYLE_CHOICES)
  50         entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
  51         tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
  52
  53         @property
  54         def urlpatterns(self):
  55                 base_patterns = patterns('',
  56                         url(r'^$', self.index_view),
  57                         url((r'^(?:%s)/?' % self.tag_permalink_base), self.tag_view),
  58                         url((r'^(?:%s)/(?P<tag>>[-\w]+)/?' % self.tag_permalink_base), self.tag_view)
  59                 )
  60                 if self.entry_permalink_style == 'D':
  61                         entry_patterns = patterns('',
  62                                 url(r'^(?P<year>\d{4})/?$', self.archive_view),
  63                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.archive_view),
  64                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/?$', self.archive_view),
  65                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/(?P<slug>[-\w]+)/?', self.entry_view)
  66                         )
  67                 elif self.entry_permalink_style == 'M':
  68                         entry_patterns = patterns('',
  69                                 url(r'^(?P<year>\d{4})/?$', self.archive_view),
  70                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.archive_view),
  71                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>>[-\w]+)/?', self.entry_view)
  72                         )
  73                 elif self.entry_permalink_style == 'Y':
  74                         entry_patterns = patterns('',
  75                                 url(r'^(?P<year>\d{4})/?$', self.archive_view),
  76                                 url(r'^(?P<year>\d{4})/(?P<slug>>[-\w]+)/?', self.entry_view)
  77                         )
  78                 elif self.entry_permalink_style == 'B':
  79                         entry_patterns = patterns('',
  80                                 url((r'^(?:%s)/?' % self.entry_permalink_base), self.archive_view),
  81                                 url((r'^(?:%s)/(?P<slug>>[-\w]+)/?' % self.entry_permalink_base), self.entry_view)
  82                         )
  83                 else:
  84                         entry_patterns = patterns('',
  85                                 url(r'^(?P<slug>>[-\w]+)/?', self.entry_view)
  86                         )
  87                 return base_patterns + entry_patterns
  88
  89         def index_view(self, request):
  90                 return HttpResponse(self.index_template.django_template.render(RequestContext(request, {'blog': self.blog})), mimetype=self.index_template.mimetype)
  91
  92         def archive_view(self, request, year=None, month=None, day=None):
  93                 entries = self.blog.entries.all()
  94                 if year:
  95                         entries = entries.filter(date__year=year)
  96                 if month:
  97                         entries = entries.filter(date__month=month)
  98                 if day:
  99                         entries = entries.filter(date__day=day)
 100                 return HttpResponse(self.archive_template.django_template.render(RequestContext(request, {'blog': self.blog, 'year': year, 'month': month, 'day': day, 'entries': entries})), mimetype=self.archive_template.mimetype)
 101
 102         def tag_view(self, request, tag=None):
 103                 return HttpResponse(self.tag_template.django_template.render(RequestContext(request, {'blog': self.blog, 'tag': tag, 'entries': None})), mimetype=self.tag_template.mimetype)
 104
 105         def entry_view(self, request, slug, year=None, month=None, day=None):
 106                 entries = self.blog.entries.all()
 107                 if year:
 108                         entries = entries.filter(date__year=year)
 109                 if month:
 110                         entries = entries.filter(date__month=month)
 111                 if day:
 112                         entries = entries.filter(date__day=day)
 113                 try:
 114                         entry = entries.get(slug=slug)
 115                 except:
 116                         raise Http404
 117                 return HttpResponse(self.entry_template.django_template.render(RequestContext(request, {'blog': self.blog, 'entry': entry})), mimetype=self.entry_template.mimetype)