Updated object deletion to match django 1.3's handling and thus multiple dbs.
[philo.git] / contrib / penfield / models.py
index a616faa..a03bed8 100644 (file)
@@ -10,6 +10,8 @@ from django.utils.datastructures import SortedDict
 from django.utils.encoding import smart_unicode, force_unicode
 from django.utils.html import escape
 from datetime import date, datetime
+from philo.contrib.penfield.exceptions import HttpNotAcceptable
+from philo.contrib.penfield.middleware import http_not_acceptable
 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, Template
@@ -19,6 +21,7 @@ try:
 except:
        mimeparse = None
 
+
 ATOM = feedgenerator.Atom1Feed.mime_type
 RSS = feedgenerator.Rss201rev2Feed.mime_type
 FEEDS = SortedDict([
@@ -43,6 +46,7 @@ class FeedView(MultiView):
        feed_type = models.CharField(max_length=50, choices=FEED_CHOICES, default=ATOM)
        feed_suffix = models.CharField(max_length=255, blank=False, default="feed")
        feeds_enabled = models.BooleanField(default=True)
+       feed_length = models.PositiveIntegerField(blank=True, null=True, default=15, help_text="The maximum number of items to return for this feed. All items will be returned if this field is blank.")
        
        item_title_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_title_related")
        item_description_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_description_related")
@@ -52,22 +56,23 @@ class FeedView(MultiView):
        
        description = ""
        
-       def feed_patterns(self, get_items_attr, page_attr, reverse_name):
+       def feed_patterns(self, base, get_items_attr, page_attr, reverse_name):
                """
                Given the name to be used to reverse this view and the names of
                the attributes for the function that fetches the objects, returns
                patterns suitable for inclusion in urlpatterns.
                """
-               urlpatterns = patterns('',
-                       url(r'^$', self.page_view(get_items_attr, page_attr), name=reverse_name)
-               )
+               urlpatterns = patterns('')
                if self.feeds_enabled:
                        feed_reverse_name = "%s_feed" % reverse_name
+                       feed_view = http_not_acceptable(self.feed_view(get_items_attr, feed_reverse_name))
+                       feed_pattern = r'%s%s%s$' % (base, (base and base[-1] != "^") and "/" or "", self.feed_suffix)
                        urlpatterns += patterns('',
-                               # include an optional slash at the beginning in case someone uses an include
-                               # with a base that doesn't include a slash.
-                               url(r'^/?%s$' % self.feed_suffix, self.feed_view(get_items_attr, feed_reverse_name), name=feed_reverse_name),
+                               url(feed_pattern, feed_view, name=feed_reverse_name),
                        )
+               urlpatterns += patterns('',
+                       url(r"%s$" % base, self.page_view(get_items_attr, page_attr), name=reverse_name)
+               )
                return urlpatterns
        
        def get_object(self, request, **kwargs):
@@ -123,6 +128,8 @@ class FeedView(MultiView):
        
        def get_feed_type(self, request):
                feed_type = self.feed_type
+               if feed_type not in FEEDS:
+                       feed_type = FEEDS.keys()[0]
                accept = request.META.get('HTTP_ACCEPT')
                if accept and feed_type not in accept and "*/*" not in accept and "%s/*" % feed_type.split("/")[0] not in accept:
                        # Wups! They aren't accepting the chosen format. Is there another format we can use?
@@ -135,8 +142,7 @@ class FeedView(MultiView):
                                else:
                                        feed_type = None
                        if not feed_type:
-                               # See RFC 2616
-                               return HttpResponse(status=406)
+                               raise HttpNotAcceptable
                return FEEDS[feed_type]
        
        def get_feed(self, obj, request, reverse_name):
@@ -190,6 +196,9 @@ class FeedView(MultiView):
                except Site.DoesNotExist:
                        current_site = RequestSite(request)
                
+               if self.feed_length is not None:
+                       items = items[:self.feed_length]
+               
                for item in items:
                        if title_template is not None:
                                title = title_template.render(RequestContext(request, {'obj': item}))
@@ -379,16 +388,9 @@ class BlogView(FeedView):
        
        @property
        def urlpatterns(self):
-               urlpatterns = patterns('',
-                       url(r'^', include(self.feed_patterns('get_all_entries', 'index_page', 'index'))),
-               )
-               if self.feeds_enabled:
-                       urlpatterns += patterns('',
-                               url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)/%s$' % (self.tag_permalink_base, self.feed_suffix), self.feed_view('get_entries_by_tag', 'entries_by_tag_feed'), name='entries_by_tag_feed'),
-                       )
-               urlpatterns += patterns('',
-                       url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)$' % self.tag_permalink_base, self.page_view('get_entries_by_tag', 'tag_page'), name='entries_by_tag')
-               )
+               urlpatterns = self.feed_patterns(r'^', 'get_all_entries', 'index_page', 'index') +\
+                       self.feed_patterns(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)$' % self.tag_permalink_base, 'get_entries_by_tag', 'tag_page', 'entries_by_tag')
+               
                if self.tag_archive_page:
                        urlpatterns += patterns('',
                                url((r'^%s$' % self.tag_permalink_base), self.tag_archive_view, name='tag_archive')
@@ -396,17 +398,11 @@ class BlogView(FeedView):
                
                if self.entry_archive_page:
                        if self.entry_permalink_style in 'DMY':
-                               urlpatterns += patterns('',
-                                       url(r'^(?P<year>\d{4})', include(self.feed_patterns('get_entries_by_ymd', 'entry_archive_page', 'entries_by_year')))
-                               )
+                               urlpatterns += self.feed_patterns(r'^(?P<year>\d{4})', 'get_entries_by_ymd', '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})$', include(self.feed_patterns('get_entries_by_ymd', 'entry_archive_page', 'entries_by_month'))),
-                                       )
+                                       urlpatterns += self.feed_patterns(r'^(?P<year>\d{4})/(?P<month>\d{2})', 'get_entries_by_ymd', 'entry_archive_page', 'entries_by_month')
                                        if self.entry_permalink_style == 'D':
-                                               urlpatterns += patterns('',
-                                                       url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})$', include(self.feed_patterns('get_entries_by_ymd', 'entry_archive_page', 'entries_by_day')))
-                                               )
+                                               urlpatterns += self.feed_patterns(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})', 'get_entries_by_ymd', 'entry_archive_page', 'entries_by_day')
                
                if self.entry_permalink_style == 'D':
                        urlpatterns += patterns('',
@@ -656,9 +652,8 @@ class NewsletterView(FeedView):
        
        @property
        def urlpatterns(self):
-               urlpatterns = patterns('',
-                       url(r'^', include(self.feed_patterns('get_all_articles', 'index_page', 'index'))),
-                       url(r'^%s/(?P<numbering>.+)' % self.issue_permalink_base, include(self.feed_patterns('get_articles_by_issue', 'issue_page', 'issue')))
+               urlpatterns = self.feed_patterns(r'^', 'get_all_articles', 'index_page', 'index') + patterns('',
+                       url(r'^%s/(?P<numbering>.+)$' % self.issue_permalink_base, self.page_view('get_articles_by_issue', 'issue_page'), name='issue')
                )
                if self.issue_archive_page:
                        urlpatterns += patterns('',
@@ -669,17 +664,11 @@ class NewsletterView(FeedView):
                                url(r'^%s' % self.article_permalink_base, include(self.feed_patterns('get_all_articles', '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('get_articles_by_ymd', 'article_archive_page', 'articles_by_year')))
-                               )
+                               urlpatterns += self.feed_patterns(r'^%s/(?P<year>\d{4})' % self.article_permalink_base, 'get_articles_by_ymd', '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('get_articles_by_ymd', 'article_archive_page', 'articles_by_month')))
-                                       )
+                                       urlpatterns += self.feed_patterns(r'^%s/(?P<year>\d{4})/(?P<month>\d{2})' % self.article_permalink_base, 'get_articles_by_ymd', '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('get_articles_by_ymd', 'article_archive_page', 'articles_by_day')))
-                                               )
+                                               urlpatterns += self.feed_patterns(r'^%s/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})' % self.article_permalink_base, 'get_articles_by_ymd', 'article_archive_page', 'articles_by_day')
                
                if self.article_permalink_style == 'Y':
                        urlpatterns += patterns('',