from django.conf import settings
from django.conf.urls.defaults import url, patterns, include
-from django.contrib.sites.models import Site, RequestSite
-from django.contrib.syndication.views import add_domain
from django.db import models
from django.http import Http404, HttpResponse
-from django.template import RequestContext, Template as DjangoTemplate
-from django.utils import feedgenerator, tzinfo
-from django.utils.datastructures import SortedDict
-from django.utils.encoding import smart_unicode, force_unicode
-from django.utils.html import escape
-from philo.contrib.penfield.exceptions import HttpNotAcceptable
-from philo.contrib.penfield.middleware import http_not_acceptable
+from philo.contrib.winer.models import FeedView
from philo.exceptions import ViewCanNotProvideSubpath
-from philo.models import Tag, Entity, MultiView, Page, register_value_model, Template
+from philo.models import Tag, Entity, Page, register_value_model
from philo.models.fields import TemplateField
from philo.utils import paginate
-try:
- import mimeparse
-except:
- mimeparse = None
-
-
-ATOM = feedgenerator.Atom1Feed.mime_type
-RSS = feedgenerator.Rss201rev2Feed.mime_type
-FEEDS = SortedDict([
- (ATOM, feedgenerator.Atom1Feed),
- (RSS, feedgenerator.Rss201rev2Feed),
-])
-FEED_CHOICES = (
- (ATOM, "Atom"),
- (RSS, "RSS"),
-)
-
-
-class FeedView(MultiView):
- """
- :class:`FeedView` handles a number of pages and related feeds for a single object such as a blog or newsletter. In addition to all other methods and attributes, :class:`FeedView` supports the same generic API as `django.contrib.syndication.views.Feed <http://docs.djangoproject.com/en/dev/ref/contrib/syndication/#django.contrib.syndication.django.contrib.syndication.views.Feed>`_.
-
- """
- #: The type of feed which should be served by the :class:`FeedView`.
- feed_type = models.CharField(max_length=50, choices=FEED_CHOICES, default=ATOM)
- #: The suffix which will be appended to a page URL for a feed of its items. Default: "feed"
- feed_suffix = models.CharField(max_length=255, blank=False, default="feed")
- #: A :class:`BooleanField` - whether or not feeds are enabled.
- feeds_enabled = models.BooleanField(default=True)
- #: A :class:`PositiveIntegerField` - the maximum number of items to return for this feed. All items will be returned if this field is blank. Default: 15.
- 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.")
-
- #: A :class:`ForeignKey` to a :class:`.Template` which will be used to render the title of each item in the feed if provided.
- item_title_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_title_related")
- #: A :class:`ForeignKey` to a :class:`.Template` which will be used to render the description of each item in the feed if provided.
- item_description_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_description_related")
-
- #: The name of the context variable to be populated with the items managed by the :class:`FeedView`.
- item_context_var = 'items'
- #: The attribute on a subclass of :class:`FeedView` which will contain the main object of a feed (such as a :class:`Blog`.)
- object_attr = 'object'
-
- #: A description of the feeds served by the :class:`FeedView`. This is a required part of the :class:`django.contrib.syndication.view.Feed` API.
- description = ""
-
- 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.
-
- :param base: The base of the returned patterns - that is, the subpath pattern which will reference the page for the items. The :attr:`feed_suffix` will be appended to this subpath.
- :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` which will return an (``items``, ``extra_context``) tuple. This will be passed directly to :meth:`feed_view` and :meth:`page_view`.
- :param page_attr: A :class:`.Page` instance or the name of an attribute on the :class:`FeedView` which contains a :class:`.Page` instance. This will be passed directly to :meth:`page_view` and will be rendered with the items from ``get_items_attr``.
- :param reverse_name: The string which is considered the "name" of the view function returned by :meth:`page_view` for the given parameters.
- :returns: Patterns suitable for use in urlpatterns.
-
- Example::
-
- @property
- def urlpatterns(self):
- urlpatterns = self.feed_patterns(r'^', 'get_all_entries', 'index_page', 'index')
- 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')
- return urlpatterns
-
- """
- 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$' % (base, (base and base[-1] != "^") and "/" or "", self.feed_suffix)
- urlpatterns += patterns('',
- url(feed_pattern, feed_view, name=feed_reverse_name),
- )
- urlpatterns += patterns('',
- url(r"%s$" % base, self.page_view(get_items_attr, page_attr), name=reverse_name)
- )
- return urlpatterns
-
- def get_object(self, request, **kwargs):
- """By default, returns the object stored in the attribute named by :attr:`object_attr`. This can be overridden for subclasses that publish different data for different URL parameters. It is part of the :class:`django.contrib.syndication.views.Feed` API."""
- return getattr(self, self.object_attr)
-
- def feed_view(self, get_items_attr, reverse_name):
- """
- Returns a view function that renders a list of items as a feed.
-
- :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` that will return a (items, extra_context) tuple when called with view arguments.
- :param reverse_name: The name which can be used reverse this feed using the :class:`FeedView` as the urlconf.
-
- :returns: A view function that renders a list of items as a feed.
-
- """
- get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr)
-
- def inner(request, extra_context=None, *args, **kwargs):
- obj = self.get_object(request, *args, **kwargs)
- feed = self.get_feed(obj, request, reverse_name)
- items, xxx = get_items(request, extra_context=extra_context, *args, **kwargs)
- self.populate_feed(feed, items, request)
-
- response = HttpResponse(mimetype=feed.mime_type)
- feed.write(response, 'utf-8')
- return response
-
- return inner
-
- def page_view(self, get_items_attr, page_attr):
- """
- :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` that will return a (items, extra_context) tuple when called with view arguments.
- :param page_attr: A :class:`.Page` instance or the name of an attribute on the :class:`FeedView` which contains a :class:`.Page` instance. This will be rendered with the items from ``get_items_attr``.
-
- :returns: A view function that renders a list of items as an :class:`HttpResponse`.
-
- """
- get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr)
- page = isinstance(page_attr, Page) and page_attr or getattr(self, page_attr)
-
- def inner(request, extra_context=None, *args, **kwargs):
- items, extra_context = get_items(request, extra_context=extra_context, *args, **kwargs)
- items, item_context = self.process_page_items(request, items)
-
- context = self.get_context()
- context.update(extra_context or {})
- context.update(item_context or {})
-
- return page.render_to_response(request, extra_context=context)
- return inner
-
- def process_page_items(self, request, items):
- """
- Hook for handling any extra processing of ``items`` based on an :class:`HttpRequest`, such as pagination or searching. This method is expected to return a list of items and a dictionary to be added to the page context.
-
- """
- item_context = {
- self.item_context_var: items
- }
- return items, item_context
-
- def get_feed_type(self, request):
- """
- Intelligently chooses a feed type for a given request. Tries to return :attr:`feed_type`, but if the Accept header does not include that mimetype, tries to return the best match from the feed types that are offered by the :class:`FeedView`. If none of the offered feed types are accepted by the :class:`HttpRequest`, then this method will raise :exc:`philo.contrib.penfield.exceptions.HttpNotAcceptable`.
-
- """
- 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?
- if mimeparse:
- feed_type = mimeparse.best_match(FEEDS.keys(), accept)
- else:
- for feed_type in FEEDS.keys():
- if feed_type in accept or "%s/*" % feed_type.split("/")[0] in accept:
- break
- else:
- feed_type = None
- if not feed_type:
- raise HttpNotAcceptable
- return FEEDS[feed_type]
-
- def get_feed(self, obj, request, reverse_name):
- """
- Returns an unpopulated :class:`django.utils.feedgenerator.DefaultFeed` object for this object.
-
- """
- try:
- current_site = Site.objects.get_current()
- except Site.DoesNotExist:
- current_site = RequestSite(request)
-
- feed_type = self.get_feed_type(request)
- node = request.node
- link = node.get_absolute_url(with_domain=True, request=request, secure=request.is_secure())
-
- feed = feed_type(
- title = self.__get_dynamic_attr('title', obj),
- subtitle = self.__get_dynamic_attr('subtitle', obj),
- link = link,
- description = self.__get_dynamic_attr('description', obj),
- language = settings.LANGUAGE_CODE.decode(),
- feed_url = add_domain(
- current_site.domain,
- self.__get_dynamic_attr('feed_url', obj) or node.construct_url(node._subpath, with_domain=True, request=request, secure=request.is_secure()),
- request.is_secure()
- ),
- author_name = self.__get_dynamic_attr('author_name', obj),
- author_link = self.__get_dynamic_attr('author_link', obj),
- author_email = self.__get_dynamic_attr('author_email', obj),
- categories = self.__get_dynamic_attr('categories', obj),
- feed_copyright = self.__get_dynamic_attr('feed_copyright', obj),
- feed_guid = self.__get_dynamic_attr('feed_guid', obj),
- ttl = self.__get_dynamic_attr('ttl', obj),
- **self.feed_extra_kwargs(obj)
- )
- return feed
-
- def populate_feed(self, feed, items, request):
- """Populates a :class:`django.utils.feedgenerator.DefaultFeed` instance as is returned by :meth:`get_feed` with the passed-in ``items``."""
- if self.item_title_template:
- title_template = DjangoTemplate(self.item_title_template.code)
- else:
- title_template = None
- if self.item_description_template:
- description_template = DjangoTemplate(self.item_description_template.code)
- else:
- description_template = None
-
- node = request.node
- try:
- current_site = Site.objects.get_current()
- 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}))
- else:
- title = self.__get_dynamic_attr('item_title', item)
- if description_template is not None:
- description = description_template.render(RequestContext(request, {'obj': item}))
- else:
- description = self.__get_dynamic_attr('item_description', item)
-
- link = node.construct_url(self.reverse(obj=item), with_domain=True, request=request, secure=request.is_secure())
-
- enc = None
- enc_url = self.__get_dynamic_attr('item_enclosure_url', item)
- if enc_url:
- enc = feedgenerator.Enclosure(
- url = smart_unicode(add_domain(
- current_site.domain,
- enc_url,
- request.is_secure()
- )),
- length = smart_unicode(self.__get_dynamic_attr('item_enclosure_length', item)),
- mime_type = smart_unicode(self.__get_dynamic_attr('item_enclosure_mime_type', item))
- )
- author_name = self.__get_dynamic_attr('item_author_name', item)
- if author_name is not None:
- author_email = self.__get_dynamic_attr('item_author_email', item)
- author_link = self.__get_dynamic_attr('item_author_link', item)
- else:
- author_email = author_link = None
-
- pubdate = self.__get_dynamic_attr('item_pubdate', item)
- if pubdate and not pubdate.tzinfo:
- ltz = tzinfo.LocalTimezone(pubdate)
- pubdate = pubdate.replace(tzinfo=ltz)
-
- feed.add_item(
- title = title,
- link = link,
- description = description,
- unique_id = self.__get_dynamic_attr('item_guid', item, link),
- enclosure = enc,
- pubdate = pubdate,
- author_name = author_name,
- author_email = author_email,
- author_link = author_link,
- categories = self.__get_dynamic_attr('item_categories', item),
- item_copyright = self.__get_dynamic_attr('item_copyright', item),
- **self.item_extra_kwargs(item)
- )
-
- def __get_dynamic_attr(self, attname, obj, default=None):
- try:
- attr = getattr(self, attname)
- except AttributeError:
- return default
- if callable(attr):
- # Check func_code.co_argcount rather than try/excepting the
- # function and catching the TypeError, because something inside
- # the function may raise the TypeError. This technique is more
- # accurate.
- if hasattr(attr, 'func_code'):
- argcount = attr.func_code.co_argcount
- else:
- argcount = attr.__call__.func_code.co_argcount
- if argcount == 2: # one argument is 'self'
- return attr(obj)
- else:
- return attr()
- return attr
-
- def feed_extra_kwargs(self, obj):
- """Returns an extra keyword arguments dictionary that is used when initializing the feed generator."""
- return {}
-
- def item_extra_kwargs(self, item):
- """Returns an extra keyword arguments dictionary that is used with the `add_item` call of the feed generator."""
- return {}
-
- def item_title(self, item):
- return escape(force_unicode(item))
-
- def item_description(self, item):
- return force_unicode(item)
-
- class Meta:
- abstract=True
-
class Blog(Entity):
"""Represents a blog which can be posted to."""
class BlogView(FeedView):
"""
- A subclass of :class:`FeedView` which handles patterns and feeds for a :class:`Blog` and its related :class:`entries <BlogEntry>`.
+ A subclass of :class:`.FeedView` which handles patterns and feeds for a :class:`Blog` and its related :class:`entries <BlogEntry>`.
"""
ENTRY_PERMALINK_STYLE_CHOICES = (
return self.blog.entry_tags
def get_all_entries(self, request, extra_context=None):
- """Used to generate :meth:`~FeedView.feed_patterns` for all entries."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for all entries."""
return self.get_entry_queryset(), extra_context
def get_entries_by_ymd(self, request, year=None, month=None, day=None, extra_context=None):
- """Used to generate :meth:`~FeedView.feed_patterns` for entries with a specific year, month, and day."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for entries with a specific year, month, and day."""
if not self.entry_archive_page:
raise Http404
entries = self.get_entry_queryset()
return entries, context
def get_entries_by_tag(self, request, tag_slugs, extra_context=None):
- """Used to generate :meth:`~FeedView.feed_patterns` for entries with all of the given tags."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for entries with all of the given tags."""
tag_slugs = tag_slugs.replace('+', '/').split('/')
tags = self.get_tag_queryset().filter(slug__in=tag_slugs)
})
return self.tag_archive_page.render_to_response(request, extra_context=context)
- def feed_view(self, get_items_attr, reverse_name):
- """Overrides :meth:`FeedView.feed_view` to add :class:`.Tag`\ s to the feed as categories."""
+ def feed_view(self, get_items_attr, reverse_name, feed_type=None):
+ """Overrides :meth:`.FeedView.feed_view` to add :class:`.Tag`\ s to the feed as categories."""
get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr)
def inner(request, extra_context=None, *args, **kwargs):
obj = self.get_object(request, *args, **kwargs)
- feed = self.get_feed(obj, request, reverse_name)
+ feed = self.get_feed(obj, request, reverse_name, feed_type, *args, **kwargs)
items, extra_context = get_items(request, extra_context=extra_context, *args, **kwargs)
self.populate_feed(feed, items, request)
return inner
def process_page_items(self, request, items):
- """Overrides :meth:`FeedView.process_page_items` to add pagination."""
+ """Overrides :meth:`.FeedView.process_page_items` to add pagination."""
if self.entries_per_page:
page_num = request.GET.get('page', 1)
paginator, paginated_page, items = paginate(items, self.entries_per_page, page_num)
class NewsletterView(FeedView):
- """A subclass of :class:`FeedView` which handles patterns and feeds for a :class:`Newsletter` and its related :class:`articles <NewsletterArticle>`."""
+ """A subclass of :class:`.FeedView` which handles patterns and feeds for a :class:`Newsletter` and its related :class:`articles <NewsletterArticle>`."""
ARTICLE_PERMALINK_STYLE_CHOICES = (
('D', 'Year, month, and day'),
('M', 'Year and month'),
return self.newsletter.issues.all()
def get_all_articles(self, request, extra_context=None):
- """Used to generate :meth:`FeedView.feed_patterns` for all entries."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for all entries."""
return self.get_article_queryset(), extra_context
def get_articles_by_ymd(self, request, year, month=None, day=None, extra_context=None):
- """Used to generate :meth:`FeedView.feed_patterns` for a specific year, month, and day."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for a specific year, month, and day."""
articles = self.get_article_queryset().filter(date__year=year)
if month:
articles = articles.filter(date__month=month)
return articles, extra_context
def get_articles_by_issue(self, request, numbering, extra_context=None):
- """Used to generate :meth:`FeedView.feed_patterns` for articles from a certain issue."""
+ """Used to generate :meth:`~.FeedView.feed_patterns` for articles from a certain issue."""
try:
issue = self.get_issue_queryset().get(numbering=numbering)
except NewsletterIssue.DoesNotExist:
--- /dev/null
+from django.conf import settings
+from django.conf.urls.defaults import url, patterns, include
+from django.contrib.sites.models import Site, RequestSite
+from django.contrib.syndication.views import add_domain
+from django.db import models
+from django.http import HttpResponse
+from django.template import RequestContext, Template as DjangoTemplate
+from django.utils import feedgenerator, tzinfo
+from django.utils.encoding import smart_unicode, force_unicode
+from django.utils.html import escape
+
+from philo.contrib.winer.exceptions import HttpNotAcceptable
+from philo.contrib.winer.feeds import registry, DEFAULT_FEED
+from philo.contrib.winer.middleware import http_not_acceptable
+from philo.models import Page, Template, MultiView
+
+try:
+ import mimeparse
+except:
+ mimeparse = None
+
+
+class FeedView(MultiView):
+ """
+ :class:`FeedView` handles a number of pages and related feeds for a single object such as a blog or newsletter. In addition to all other methods and attributes, :class:`FeedView` supports the same generic API as `django.contrib.syndication.views.Feed <http://docs.djangoproject.com/en/dev/ref/contrib/syndication/#django.contrib.syndication.django.contrib.syndication.views.Feed>`_.
+
+ """
+ #: The type of feed which should be served by the :class:`FeedView`.
+ feed_type = models.CharField(max_length=50, choices=registry.choices, default=registry.get_slug(DEFAULT_FEED))
+ #: The suffix which will be appended to a page URL for a feed of its items. Default: "feed"
+ feed_suffix = models.CharField(max_length=255, blank=False, default="feed")
+ #: A :class:`BooleanField` - whether or not feeds are enabled.
+ feeds_enabled = models.BooleanField(default=True)
+ #: A :class:`PositiveIntegerField` - the maximum number of items to return for this feed. All items will be returned if this field is blank. Default: 15.
+ 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.")
+
+ #: A :class:`ForeignKey` to a :class:`.Template` which will be used to render the title of each item in the feed if provided.
+ item_title_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_title_related")
+ #: A :class:`ForeignKey` to a :class:`.Template` which will be used to render the description of each item in the feed if provided.
+ item_description_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_description_related")
+
+ #: The name of the context variable to be populated with the items managed by the :class:`FeedView`.
+ item_context_var = 'items'
+ #: The attribute on a subclass of :class:`FeedView` which will contain the main object of a feed (such as a :class:`Blog`.)
+ object_attr = 'object'
+
+ #: A description of the feeds served by the :class:`FeedView`. This is a required part of the :class:`django.contrib.syndication.view.Feed` API.
+ description = ""
+
+ 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. In addition to ``base`` and ``base`` + :attr:`feed_suffix`, patterns will be provided for each registered feed type as ``base`` + ``slug``.
+
+ :param base: The base of the returned patterns - that is, the subpath pattern which will reference the page for the items. The :attr:`feed_suffix` will be appended to this subpath.
+ :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` which will return an (``items``, ``extra_context``) tuple. This will be passed directly to :meth:`feed_view` and :meth:`page_view`.
+ :param page_attr: A :class:`.Page` instance or the name of an attribute on the :class:`FeedView` which contains a :class:`.Page` instance. This will be passed directly to :meth:`page_view` and will be rendered with the items from ``get_items_attr``.
+ :param reverse_name: The string which is considered the "name" of the view function returned by :meth:`page_view` for the given parameters.
+ :returns: Patterns suitable for use in urlpatterns.
+
+ Example::
+
+ @property
+ def urlpatterns(self):
+ urlpatterns = self.feed_patterns(r'^', 'get_all_entries', 'index_page', 'index')
+ 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')
+ return urlpatterns
+
+ """
+ urlpatterns = patterns('')
+ if self.feeds_enabled:
+ suffixes = [(self.feed_suffix, None)] + [(slug, slug) for slug in registry]
+ for suffix, feed_type in suffixes:
+ feed_view = http_not_acceptable(self.feed_view(get_items_attr, reverse_name, feed_type))
+ feed_pattern = r'%s%s%s$' % (base, "/" if base and base[-1] != "^" else "", suffix)
+ urlpatterns += patterns('',
+ url(feed_pattern, feed_view, name="%s_%s" % (reverse_name, suffix)),
+ )
+ urlpatterns += patterns('',
+ url(r"%s$" % base, self.page_view(get_items_attr, page_attr), name=reverse_name)
+ )
+ return urlpatterns
+
+ def get_object(self, request, **kwargs):
+ """By default, returns the object stored in the attribute named by :attr:`object_attr`. This can be overridden for subclasses that publish different data for different URL parameters. It is part of the :class:`django.contrib.syndication.views.Feed` API."""
+ return getattr(self, self.object_attr)
+
+ def feed_view(self, get_items_attr, reverse_name, feed_type=None):
+ """
+ Returns a view function that renders a list of items as a feed.
+
+ :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` that will return a (items, extra_context) tuple when called with view arguments.
+ :param reverse_name: The name which can be used reverse the page for this feed using the :class:`FeedView` as the urlconf.
+ :param feed_type: The slug used to render the feed class which will be used by the returned view function.
+
+ :returns: A view function that renders a list of items as a feed.
+
+ """
+ get_items = get_items_attr if callable(get_items_attr) else getattr(self, get_items_attr)
+
+ def inner(request, extra_context=None, *args, **kwargs):
+ obj = self.get_object(request, *args, **kwargs)
+ feed = self.get_feed(obj, request, reverse_name, feed_type, *args, **kwargs)
+ items, xxx = get_items(request, extra_context=extra_context, *args, **kwargs)
+ self.populate_feed(feed, items, request)
+
+ response = HttpResponse(mimetype=feed.mime_type)
+ feed.write(response, 'utf-8')
+ return response
+
+ return inner
+
+ def page_view(self, get_items_attr, page_attr):
+ """
+ :param get_items_attr: A callable or the name of a callable on the :class:`FeedView` that will return a (items, extra_context) tuple when called with view arguments.
+ :param page_attr: A :class:`.Page` instance or the name of an attribute on the :class:`FeedView` which contains a :class:`.Page` instance. This will be rendered with the items from ``get_items_attr``.
+
+ :returns: A view function that renders a list of items as an :class:`HttpResponse`.
+
+ """
+ get_items = get_items_attr if callable(get_items_attr) else getattr(self, get_items_attr)
+ page = page_attr if isinstance(page_attr, Page) else getattr(self, page_attr)
+
+ def inner(request, extra_context=None, *args, **kwargs):
+ items, extra_context = get_items(request, extra_context=extra_context, *args, **kwargs)
+ items, item_context = self.process_page_items(request, items)
+
+ context = self.get_context()
+ context.update(extra_context or {})
+ context.update(item_context or {})
+
+ return page.render_to_response(request, extra_context=context)
+ return inner
+
+ def process_page_items(self, request, items):
+ """
+ Hook for handling any extra processing of ``items`` based on an :class:`HttpRequest`, such as pagination or searching. This method is expected to return a list of items and a dictionary to be added to the page context.
+
+ """
+ item_context = {
+ self.item_context_var: items
+ }
+ return items, item_context
+
+ def get_feed_type(self, request, feed_type=None):
+ """
+ If ``feed_type`` is not ``None``, returns the corresponding class from the registry or reises :exc:`.HttpNotAcceptable`. Otherwise, intelligently chooses a feed type for a given request. Tries to return :attr:`feed_type`, but if the Accept header does not include that mimetype, tries to return the best match from the feed types that are offered by the :class:`FeedView`. If none of the offered feed types are accepted by the :class:`HttpRequest`, raises :exc:`.HttpNotAcceptable`.
+
+ """
+ if feed_type is not None:
+ feed_type = registry[feed_type]
+ loose = False
+ else:
+ feed_type = registry.get(self.feed_type, DEFAULT_FEED)
+ loose = True
+ mt = feed_type.mime_type
+ accept = request.META.get('HTTP_ACCEPT')
+ if accept and mt not in accept and "*/*" not in accept and "%s/*" % mt.split("/")[0] not in accept:
+ # Wups! They aren't accepting the chosen format.
+ feed_type = None
+ if loose:
+ # Is there another format we can use?
+ accepted_mts = dict([(obj.mime_type, obj) for obj in registry.values()])
+ if mimeparse:
+ mt = mimeparse.best_match(accepted_mts.keys(), accept)
+ if mt:
+ feed_type = accepted_mts[mt]
+ else:
+ for mt in accepted_mts:
+ if mt in accept or "%s/*" % mt.split("/")[0] in accept:
+ feed_type = accepted_mts[mt]
+ break
+ if not feed_type:
+ raise HttpNotAcceptable
+ return feed_type
+
+ def get_feed(self, obj, request, reverse_name, feed_type=None, *args, **kwargs):
+ """
+ Returns an unpopulated :class:`django.utils.feedgenerator.DefaultFeed` object for this object.
+
+ :param obj: The object for which the feed should be generated.
+ :param request: The current request.
+ :param reverse_name: The name which can be used to reverse the URL of the page corresponding to this feed.
+ :param feed_type: The slug used to register the feed class that will be instantiated and returned.
+
+ :returns: An instance of the feed class registered as ``feed_type``, falling back to :attr:`feed_type` if ``feed_type`` is ``None``.
+
+ """
+ try:
+ current_site = Site.objects.get_current()
+ except Site.DoesNotExist:
+ current_site = RequestSite(request)
+
+ feed_type = self.get_feed_type(request, feed_type)
+ node = request.node
+ link = node.construct_url(self.reverse(reverse_name, args=args, kwargs=kwargs), with_domain=True, request=request, secure=request.is_secure())
+
+ feed = feed_type(
+ title = self.__get_dynamic_attr('title', obj),
+ subtitle = self.__get_dynamic_attr('subtitle', obj),
+ link = link,
+ description = self.__get_dynamic_attr('description', obj),
+ language = settings.LANGUAGE_CODE.decode(),
+ feed_url = add_domain(
+ current_site.domain,
+ self.__get_dynamic_attr('feed_url', obj) or node.construct_url(self.reverse("%s_%s" % (reverse_name, registry.get_slug(feed_type)), args=args, kwargs=kwargs), with_domain=True, request=request, secure=request.is_secure()),
+ request.is_secure()
+ ),
+ author_name = self.__get_dynamic_attr('author_name', obj),
+ author_link = self.__get_dynamic_attr('author_link', obj),
+ author_email = self.__get_dynamic_attr('author_email', obj),
+ categories = self.__get_dynamic_attr('categories', obj),
+ feed_copyright = self.__get_dynamic_attr('feed_copyright', obj),
+ feed_guid = self.__get_dynamic_attr('feed_guid', obj),
+ ttl = self.__get_dynamic_attr('ttl', obj),
+ **self.feed_extra_kwargs(obj)
+ )
+ return feed
+
+ def populate_feed(self, feed, items, request):
+ """Populates a :class:`django.utils.feedgenerator.DefaultFeed` instance as is returned by :meth:`get_feed` with the passed-in ``items``."""
+ if self.item_title_template:
+ title_template = DjangoTemplate(self.item_title_template.code)
+ else:
+ title_template = None
+ if self.item_description_template:
+ description_template = DjangoTemplate(self.item_description_template.code)
+ else:
+ description_template = None
+
+ node = request.node
+ try:
+ current_site = Site.objects.get_current()
+ 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}))
+ else:
+ title = self.__get_dynamic_attr('item_title', item)
+ if description_template is not None:
+ description = description_template.render(RequestContext(request, {'obj': item}))
+ else:
+ description = self.__get_dynamic_attr('item_description', item)
+
+ link = node.construct_url(self.reverse(obj=item), with_domain=True, request=request, secure=request.is_secure())
+
+ enc = None
+ enc_url = self.__get_dynamic_attr('item_enclosure_url', item)
+ if enc_url:
+ enc = feedgenerator.Enclosure(
+ url = smart_unicode(add_domain(
+ current_site.domain,
+ enc_url,
+ request.is_secure()
+ )),
+ length = smart_unicode(self.__get_dynamic_attr('item_enclosure_length', item)),
+ mime_type = smart_unicode(self.__get_dynamic_attr('item_enclosure_mime_type', item))
+ )
+ author_name = self.__get_dynamic_attr('item_author_name', item)
+ if author_name is not None:
+ author_email = self.__get_dynamic_attr('item_author_email', item)
+ author_link = self.__get_dynamic_attr('item_author_link', item)
+ else:
+ author_email = author_link = None
+
+ pubdate = self.__get_dynamic_attr('item_pubdate', item)
+ if pubdate and not pubdate.tzinfo:
+ ltz = tzinfo.LocalTimezone(pubdate)
+ pubdate = pubdate.replace(tzinfo=ltz)
+
+ feed.add_item(
+ title = title,
+ link = link,
+ description = description,
+ unique_id = self.__get_dynamic_attr('item_guid', item, link),
+ enclosure = enc,
+ pubdate = pubdate,
+ author_name = author_name,
+ author_email = author_email,
+ author_link = author_link,
+ categories = self.__get_dynamic_attr('item_categories', item),
+ item_copyright = self.__get_dynamic_attr('item_copyright', item),
+ **self.item_extra_kwargs(item)
+ )
+
+ def __get_dynamic_attr(self, attname, obj, default=None):
+ try:
+ attr = getattr(self, attname)
+ except AttributeError:
+ return default
+ if callable(attr):
+ # Check func_code.co_argcount rather than try/excepting the
+ # function and catching the TypeError, because something inside
+ # the function may raise the TypeError. This technique is more
+ # accurate.
+ if hasattr(attr, 'func_code'):
+ argcount = attr.func_code.co_argcount
+ else:
+ argcount = attr.__call__.func_code.co_argcount
+ if argcount == 2: # one argument is 'self'
+ return attr(obj)
+ else:
+ return attr()
+ return attr
+
+ def feed_extra_kwargs(self, obj):
+ """Returns an extra keyword arguments dictionary that is used when initializing the feed generator."""
+ return {}
+
+ def item_extra_kwargs(self, item):
+ """Returns an extra keyword arguments dictionary that is used with the `add_item` call of the feed generator."""
+ return {}
+
+ def item_title(self, item):
+ return escape(force_unicode(item))
+
+ def item_description(self, item):
+ return force_unicode(item)
+
+ class Meta:
+ abstract=True
\ No newline at end of file
git.ithinksw.org / philo.git / commitdiff