Reduced number of queries for BlogView.get_entries_by_tag. Corrected waldo's AccountM...
[philo.git] / contrib / penfield / models.py
index ae62c33..4191463 100644 (file)
@@ -1,40 +1,56 @@
+from django.conf import settings
+from django.conf.urls.defaults import url, patterns, include
 from django.db import models
 from django.db import models
-from philo.models import Entity, MultiNode, Template, register_value_model
-from django.contrib.auth.models import User
-from django.conf.urls.defaults import url, patterns
-from django.http import Http404, HttpResponse
-from django.template import RequestContext
-from datetime import datetime
+from django.http import Http404
+from django.template import loader, Context
+from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
+from datetime import date, datetime
+from philo.contrib.penfield.utils import FeedMultiViewMixin
+from philo.contrib.penfield.validators import validate_pagination_count
+from philo.exceptions import ViewCanNotProvideSubpath
+from philo.models import Tag, Titled, Entity, MultiView, Page, register_value_model, TemplateField
+from philo.utils import paginate
 
 
 
 
-class Titled(models.Model):
-       title = models.CharField(max_length=255)
-       slug = models.SlugField()
-       
-       def __unicode__(self):
-               return self.title
+class Blog(Entity, Titled):
+       @property
+       def entry_tags(self):
+               """ Returns a QuerySet of Tags that are used on any entries in this blog. """
+               return Tag.objects.filter(blogentries__blog=self).distinct()
        
        
-       class Meta:
-               abstract = True
+       @property
+       def entry_dates(self):
+               dates = {'year': self.entries.dates('date', 'year', order='DESC'), 'month': self.entries.dates('date', 'month', order='DESC'), 'day': self.entries.dates('date', 'day', order='DESC')}
+               return dates
 
 
 
 
-class Blog(Entity, Titled):
-       pass
+register_value_model(Blog)
 
 
 class BlogEntry(Entity, Titled):
 
 
 class BlogEntry(Entity, Titled):
-       blog = models.ForeignKey(Blog, related_name='entries')
-       author = models.ForeignKey(User, related_name='blogentries')
-       date = models.DateTimeField(default=datetime.now)
+       blog = models.ForeignKey(Blog, related_name='entries', blank=True, null=True)
+       author = models.ForeignKey(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='blogentries')
+       date = models.DateTimeField(default=None)
        content = models.TextField()
        content = models.TextField()
-       excerpt = models.TextField()
+       excerpt = models.TextField(blank=True, null=True)
+       tags = models.ManyToManyField(Tag, related_name='blogentries', blank=True, null=True)
+       
+       def save(self, *args, **kwargs):
+               if self.date is None:
+                       self.date = datetime.now()
+               super(BlogEntry, self).save(*args, **kwargs)
+       
+       class Meta:
+               ordering = ['-date']
+               verbose_name_plural = "blog entries"
+               get_latest_by = "date"
 
 
 register_value_model(BlogEntry)
 
 
 
 
 register_value_model(BlogEntry)
 
 
-class BlogNode(MultiNode):
-       PERMALINK_STYLE_CHOICES = (
+class BlogView(MultiView, FeedMultiViewMixin):
+       ENTRY_PERMALINK_STYLE_CHOICES = (
                ('D', 'Year, month, and day'),
                ('M', 'Year and month'),
                ('Y', 'Year'),
                ('D', 'Year, month, and day'),
                ('M', 'Year and month'),
                ('Y', 'Year'),
@@ -42,57 +58,114 @@ class BlogNode(MultiNode):
                ('N', 'No base')
        )
        
                ('N', 'No base')
        )
        
-       blog = models.ForeignKey(Blog, related_name='nodes')
+       blog = models.ForeignKey(Blog, related_name='blogviews')
        
        
-       index_template = models.ForeignKey(Template, related_name='blog_index_related')
-       archive_template = models.ForeignKey(Template, related_name='blog_archive_related')
-       tag_template = models.ForeignKey(Template, related_name='blog_tag_related')
-       entry_template = models.ForeignKey(Template, related_name='blog_entry_related')
+       index_page = models.ForeignKey(Page, related_name='blog_index_related')
+       entry_page = models.ForeignKey(Page, related_name='blog_entry_related')
+       entry_archive_page = models.ForeignKey(Page, related_name='blog_entry_archive_related', null=True, blank=True)
+       tag_page = models.ForeignKey(Page, related_name='blog_tag_related')
+       tag_archive_page = models.ForeignKey(Page, related_name='blog_tag_archive_related', null=True, blank=True)
+       entries_per_page = models.IntegerField(blank=True, validators=[validate_pagination_count], null=True)
        
        
-       entry_permalink_style = models.CharField(max_length=1, choices=PERMALINK_STYLE_CHOICES)
+       entry_permalink_style = models.CharField(max_length=1, choices=ENTRY_PERMALINK_STYLE_CHOICES)
        entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
        tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
        entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
        tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
+       feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
+       feeds_enabled = models.BooleanField()
+       list_var = 'entries'
+       
+       def __unicode__(self):
+               return u'BlogView for %s' % self.blog.title
+       
+       @property
+       def per_page(self):
+               return self.entries_per_page
+       
+       def get_reverse_params(self, obj):
+               if isinstance(obj, BlogEntry):
+                       if obj.blog == self.blog:
+                               kwargs = {'slug': obj.slug}
+                               if self.entry_permalink_style in 'DMY':
+                                       kwargs.update({'year': str(obj.date.year).zfill(4)})
+                                       if self.entry_permalink_style in 'DM':
+                                               kwargs.update({'month': str(obj.date.month).zfill(2)})
+                                               if self.entry_permalink_style == 'D':
+                                                       kwargs.update({'day': str(obj.date.day).zfill(2)})
+                               return self.entry_view, [], kwargs
+               elif isinstance(obj, Tag):
+                       if obj in self.blog.entry_tags:
+                               return 'entries_by_tag', [], {'tag_slugs': obj.slug}
+               elif isinstance(obj, (date, datetime)):
+                       kwargs = {
+                               'year': str(obj.year).zfill(4),
+                               'month': str(obj.month).zfill(2),
+                               'day': str(obj.day).zfill(2)
+                       }
+                       return 'entries_by_day', [], kwargs
+               raise ViewCanNotProvideSubpath
+       
+       def get_context(self):
+               return {'blog': self.blog}
        
        @property
        def urlpatterns(self):
        
        @property
        def urlpatterns(self):
-               base_patterns = patterns('',
-                       url(r'^$', self.index_view),
-                       url((r'^(?:%s)/?' % self.tag_permalink_base), self.tag_view),
-                       url((r'^(?:%s)/(?P<tag>>[-\w]+)/?' % self.tag_permalink_base), self.tag_view)
+               urlpatterns = patterns('',
+                       url(r'^', include(self.feed_patterns(self.get_all_entries, self.index_page, 'index'))),
                )
                )
+               if self.feeds_enabled:
+                       urlpatterns += patterns('',
+                               url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)/%s/' % (self.tag_permalink_base, self.feed_suffix), self.feed_view(self.get_entries_by_tag, 'entries_by_tag_feed'), name='entries_by_tag_feed'),
+                       )
+               urlpatterns += patterns('',
+                       url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)/' % self.tag_permalink_base, self.page_view(self.get_entries_by_tag, self.tag_page), name='entries_by_tag')
+               )
+               if self.tag_archive_page:
+                       urlpatterns += patterns('',
+                               url((r'^(?:%s)/?$' % self.tag_permalink_base), self.tag_archive_view)
+                       )
+               
+               if self.entry_archive_page:
+                       if self.entry_permalink_style in 'DMY':
+                               urlpatterns += patterns('',
+                                       url(r'^(?P<year>\d{4})/', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_year')))
+                               )
+                               if self.entry_permalink_style in 'DM':
+                                       urlpatterns += patterns('',
+                                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_month'))),
+                                       )
+                                       if self.entry_permalink_style == 'D':
+                                               urlpatterns += patterns('',
+                                                       url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_day')))
+                                               )
+               
                if self.entry_permalink_style == 'D':
                if self.entry_permalink_style == 'D':
-                       entry_patterns = patterns('',
-                               url(r'^(?P<year>\d{4})/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/(?P<slug>[-\w]+)/?', self.entry_view)
+                       urlpatterns += patterns('',
+                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
                        )
                elif self.entry_permalink_style == 'M':
                        )
                elif self.entry_permalink_style == 'M':
-                       entry_patterns = patterns('',
-                               url(r'^(?P<year>\d{4})/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>>[-\w]+)/?', self.entry_view)
+                       urlpatterns += patterns('',
+                               url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
                        )
                elif self.entry_permalink_style == 'Y':
                        )
                elif self.entry_permalink_style == 'Y':
-                       entry_patterns = patterns('',
-                               url(r'^(?P<year>\d{4})/?$', self.archive_view),
-                               url(r'^(?P<year>\d{4})/(?P<slug>>[-\w]+)/?', self.entry_view)
+                       urlpatterns += patterns('',
+                               url(r'^(?P<year>\d{4})/(?P<slug>[-\w]+)/?$', self.entry_view)
                        )
                elif self.entry_permalink_style == 'B':
                        )
                elif self.entry_permalink_style == 'B':
-                       entry_patterns = patterns('',
-                               url((r'^(?:%s)/?' % self.entry_permalink_base), self.archive_view),
-                               url((r'^(?:%s)/(?P<slug>>[-\w]+)/?' % self.entry_permalink_base), self.entry_view)
+                       urlpatterns += patterns('',
+                               url((r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.entry_permalink_base), self.entry_view)
                        )
                else:
                        )
                else:
-                       entry_patterns = patterns('',
-                               url(r'^(?P<slug>>[-\w]+)/?', self.entry_view)
+                       urlpatterns = patterns('',
+                               url(r'^(?P<slug>[-\w]+)/?$', self.entry_view)
                        )
                        )
-               return base_patterns + entry_patterns
+               return urlpatterns
        
        
-       def index_view(self, request):
-               return HttpResponse(self.index_template.django_template.render(RequestContext(request, {'blog': self.blog})), mimetype=self.index_template.mimetype)
+       def get_all_entries(self, request, extra_context=None):
+               return self.blog.entries.all(), extra_context
        
        
-       def archive_view(self, request, year=None, month=None, day=None):
+       def get_entries_by_ymd(self, request, year=None, month=None, day=None, extra_context=None):
+               if not self.entry_archive_page:
+                       raise Http404
                entries = self.blog.entries.all()
                if year:
                        entries = entries.filter(date__year=year)
                entries = self.blog.entries.all()
                if year:
                        entries = entries.filter(date__year=year)
@@ -100,13 +173,60 @@ class BlogNode(MultiNode):
                        entries = entries.filter(date__month=month)
                if day:
                        entries = entries.filter(date__day=day)
                        entries = entries.filter(date__month=month)
                if day:
                        entries = entries.filter(date__day=day)
-               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)
+               
+               context = extra_context or {}
+               context.update({'year': year, 'month': month, 'day': day})
+               return entries, context
+       
+       def get_entries_by_tag(self, request, tag_slugs, extra_context=None):
+               tag_slugs = tag_slugs.replace('+', '/').split('/')
+               tags = self.blog.entry_tags.filter(slug__in=tag_slugs)
+               
+               if not tags:
+                       raise Http404
+               
+               # Raise a 404 on an incorrect slug.
+               found_slugs = [tag.slug for tag in tags]
+               for slug in tag_slugs:
+                       if slug and slug not in found_slugs:
+                               raise Http404
+
+               entries = self.blog.entries.all()
+               for tag in tags:
+                       entries = entries.filter(tags=tag)
+               
+               context = self.get_context()
+               context.update(extra_context or {})
+               context.update({'tags': tags})
+               
+               return entries, context
        
        
-       def tag_view(self, request, tag=None):
-               # return HttpResponse(self.tag_template.django_template.render(RequestContext(request, {'blog': self.blog, 'tag': tag, 'entries': None})), mimetype=self.tag_template.mimetype)
-               raise Http404
+       def add_item(self, feed, obj, kwargs=None):
+               title = loader.get_template("penfield/feeds/blog_entry/title.html")
+               description = loader.get_template("penfield/feeds/blog_entry/description.html")
+               defaults = {
+                       'title': title.render(Context({'entry': obj})),
+                       'description': description.render(Context({'entry': obj})),
+                       'author_name': obj.author.get_full_name(),
+                       'pubdate': obj.date
+               }
+               defaults.update(kwargs or {})
+               super(BlogView, self).add_item(feed, obj, defaults)
        
        
-       def entry_view(self, request, slug, year=None, month=None, day=None):
+       def get_feed(self, feed_type, extra_context, kwargs=None):
+               tags = (extra_context or {}).get('tags', None)
+               title = self.blog.title
+               
+               if tags is not None:
+                       title += " - %s" % ', '.join([tag.name for tag in tags])
+               
+               defaults = {
+                       'title': title
+               }
+               defaults.update(kwargs or {})
+               return super(BlogView, self).get_feed(feed_type, extra_context, defaults)
+       
+       def entry_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
                entries = self.blog.entries.all()
                if year:
                        entries = entries.filter(date__year=year)
                entries = self.blog.entries.all()
                if year:
                        entries = entries.filter(date__year=year)
@@ -118,19 +238,224 @@ class BlogNode(MultiNode):
                        entry = entries.get(slug=slug)
                except:
                        raise Http404
                        entry = entries.get(slug=slug)
                except:
                        raise Http404
-               return HttpResponse(self.entry_template.django_template.render(RequestContext(request, {'blog': self.blog, 'entry': entry})), mimetype=self.entry_template.mimetype)
+               context = self.get_context()
+               context.update(extra_context or {})
+               context.update({'entry': entry})
+               return self.entry_page.render_to_response(request, extra_context=context)
+       
+       def tag_archive_view(self, request, extra_context=None):
+               if not self.tag_archive_page:
+                       raise Http404
+               context = {}
+               context.update(extra_context or {})
+               context.update({'blog': self.blog})
+               return self.tag_archive_page.render_to_response(request, extra_context=context)
 
 
 class Newsletter(Entity, Titled):
        pass
 
 
 
 
 class Newsletter(Entity, Titled):
        pass
 
 
-class NewsStory(Entity, Titled):
-       newsletter = models.ForeignKey(Newsletter, related_name='stories')
-       authors = models.ManyToManyField(User, related_name='newsstories')
-       date = models.DateTimeField(default=datetime.now)
-       lede = models.TextField(null=True, blank=True)
-       full_text = models.TextField()
+register_value_model(Newsletter)
+
+
+class NewsletterArticle(Entity, Titled):
+       newsletter = models.ForeignKey(Newsletter, related_name='articles')
+       authors = models.ManyToManyField(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='newsletterarticles')
+       date = models.DateTimeField(default=None)
+       lede = TemplateField(null=True, blank=True, verbose_name='Summary')
+       full_text = TemplateField(db_index=True)
+       tags = models.ManyToManyField(Tag, related_name='newsletterarticles', blank=True, null=True)
+       
+       def save(self, *args, **kwargs):
+               if self.date is None:
+                       self.date = datetime.now()
+               super(NewsletterArticle, self).save(*args, **kwargs)
+       
+       class Meta:
+               get_latest_by = 'date'
+               ordering = ['-date']
+               unique_together = (('newsletter', 'slug'),)
+
+
+register_value_model(NewsletterArticle)
+
+
+class NewsletterIssue(Entity, Titled):
+       newsletter = models.ForeignKey(Newsletter, related_name='issues')
+       numbering = models.CharField(max_length=50, help_text='For example, 04.02 for volume 4, issue 2.')
+       articles = models.ManyToManyField(NewsletterArticle, related_name='issues')
+       
+       class Meta:
+               ordering = ['-numbering']
+               unique_together = (('newsletter', 'numbering'),)
+
+
+register_value_model(NewsletterIssue)
 
 
 
 
-register_value_model(NewsStory)
\ No newline at end of file
+class NewsletterView(MultiView, FeedMultiViewMixin):
+       ARTICLE_PERMALINK_STYLE_CHOICES = (
+               ('D', 'Year, month, and day'),
+               ('M', 'Year and month'),
+               ('Y', 'Year'),
+               ('S', 'Slug only')
+       )
+       
+       newsletter = models.ForeignKey(Newsletter, related_name='newsletterviews')
+       
+       index_page = models.ForeignKey(Page, related_name='newsletter_index_related')
+       article_page = models.ForeignKey(Page, related_name='newsletter_article_related')
+       article_archive_page = models.ForeignKey(Page, related_name='newsletter_article_archive_related', null=True, blank=True)
+       issue_page = models.ForeignKey(Page, related_name='newsletter_issue_related')
+       issue_archive_page = models.ForeignKey(Page, related_name='newsletter_issue_archive_related', null=True, blank=True)
+       
+       article_permalink_style = models.CharField(max_length=1, choices=ARTICLE_PERMALINK_STYLE_CHOICES)
+       article_permalink_base = models.CharField(max_length=255, blank=False, default='articles')
+       issue_permalink_base = models.CharField(max_length=255, blank=False, default='issues')
+       
+       feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
+       feeds_enabled = models.BooleanField()
+       list_var = 'articles'
+       
+       def __unicode__(self):
+               return self.newsletter.__unicode__()
+       
+       def get_reverse_params(self, obj):
+               if isinstance(obj, NewsletterArticle):
+                       if obj.newsletter == self.newsletter:
+                               kwargs = {'slug': obj.slug}
+                               if self.article_permalink_style in 'DMY':
+                                       kwargs.update({'year': str(obj.date.year).zfill(4)})
+                                       if self.article_permalink_style in 'DM':
+                                               kwargs.update({'month': str(obj.date.month).zfill(2)})
+                                               if self.article_permalink_style == 'D':
+                                                       kwargs.update({'day': str(obj.date.day).zfill(2)})
+                               return self.article_view, [], kwargs
+               elif isinstance(obj, NewsletterIssue):
+                       if obj.newsletter == self.newsletter:
+                               return 'issue', [], {'numbering': obj.numbering}
+               elif isinstance(obj, (date, datetime)):
+                       kwargs = {
+                               'year': str(obj.year).zfill(4),
+                               'month': str(obj.month).zfill(2),
+                               'day': str(obj.day).zfill(2)
+                       }
+                       return 'articles_by_day', [], kwargs
+               raise ViewCanNotProvideSubpath
+       
+       @property
+       def urlpatterns(self):
+               urlpatterns = patterns('',
+                       url(r'^', include(self.feed_patterns(self.get_all_articles, self.index_page, 'index'))),
+                       url(r'^(?:%s)/(?P<numbering>.+)/' % self.issue_permalink_base, include(self.feed_patterns(self.get_articles_by_issue, self.issue_page, 'issue')))
+               )
+               if self.issue_archive_page:
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/$' % self.issue_permalink_base, self.issue_archive_view)
+                       )
+               if self.article_archive_page:
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/' % self.article_permalink_base, include(self.feed_patterns(self.get_all_articles, self.article_archive_page, 'articles')))
+                       )
+                       if self.article_permalink_style in 'DMY':
+                               urlpatterns += patterns('',
+                                       url(r'^(?:%s)/(?P<year>\d{4})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_year')))
+                               )
+                               if self.article_permalink_style in 'DM':
+                                       urlpatterns += patterns('',
+                                               url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_month')))
+                                       )
+                                       if self.article_permalink_style == 'D':
+                                               urlpatterns += patterns('',
+                                                       url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_day')))
+                                               )
+               
+               if self.article_permalink_style == 'Y':
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/(?P<year>\d{4})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
+                       )
+               elif self.article_permalink_style == 'M':
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
+                       )
+               elif self.article_permalink_style == 'D':
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
+                       )
+               else:   
+                       urlpatterns += patterns('',
+                               url(r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.article_permalink_base, self.article_view)
+                       )
+               
+               return urlpatterns
+       
+       def get_context(self):
+               return {'newsletter': self.newsletter}
+       
+       def get_all_articles(self, request, extra_context=None):
+               return self.newsletter.articles.all(), extra_context
+       
+       def get_articles_by_ymd(self, request, year, month=None, day=None, extra_context=None):
+               articles = self.newsletter.articles.filter(dat__year=year)
+               if month:
+                       articles = articles.filter(date__month=month)
+               if day:
+                       articles = articles.filter(date__day=day)
+               return articles
+       
+       def get_articles_by_issue(self, request, numbering, extra_context=None):
+               try:
+                       issue = self.newsletter.issues.get(numbering=numbering)
+               except NewsletterIssue.DoesNotExist:
+                       raise Http404
+               context = extra_context or {}
+               context.update({'issue': issue})
+               return issue.articles.all(), context
+       
+       def article_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
+               articles = self.newsletter.articles.all()
+               if year:
+                       articles = articles.filter(date__year=year)
+               if month:
+                       articles = articles.filter(date__month=month)
+               if day:
+                       articles = articles.filter(date__day=day)
+               try:
+                       article = articles.get(slug=slug)
+               except NewsletterArticle.DoesNotExist:
+                       raise Http404
+               context = self.get_context()
+               context.update(extra_context or {})
+               context.update({'article': article})
+               return self.article_page.render_to_response(request, extra_context=context)
+       
+       def issue_archive_view(self, request, extra_context=None):
+               if not self.issue_archive_page:
+                       raise Http404
+               context = {}
+               context.update(extra_context or {})
+               context.update({'newsletter': self.newsletter})
+               return self.issue_archive_page.render_to_response(request, extra_context=context)
+       
+       def add_item(self, feed, obj, kwargs=None):
+               title = loader.get_template("penfield/feeds/newsletter_article/title.html")
+               description = loader.get_template("penfield/feeds/newsletter_article/description.html")
+               defaults = {
+                       'title': title.render(Context({'article': obj})),
+                       'author_name': ', '.join([author.get_full_name() for author in obj.authors.all()]),
+                       'pubdate': obj.date,
+                       'description': description.render(Context({'article': obj})),
+                       'categories': [tag.name for tag in obj.tags.all()]
+               }
+               defaults.update(kwargs or {})
+               super(NewsletterView, self).add_item(feed, obj, defaults)
+       
+       def get_feed(self, feed_type, extra_context, kwargs=None):
+               title = self.newsletter.title
+               
+               defaults = {
+                       'title': title
+               }
+               defaults.update(kwargs or {})
+               return super(NewsletterView, self).get_feed(feed_type, extra_context, defaults)