from django.contrib.syndication import views

from django.core.exceptions import ObjectDoesNotExist

import warnings

# This is part of the deprecated API

from django.contrib.syndication.views import FeedDoesNotExist, add_domain

class Feed(views.Feed):

    """Provided for backwards compatibility."""

    def __init__(self, slug, request):

        warnings.warn('The syndication feeds.Feed class is deprecated. Please '

                      'use the new class based view API.',

                      category=PendingDeprecationWarning)

        self.slug = slug

        self.request = request

        self.feed_url = getattr(self, 'feed_url', None) or request.path

        self.title_template = self.title_template or ('feeds/%s_title.html' % slug)

        self.description_template = self.description_template or ('feeds/%s_description.html' % slug)

    def get_object(self, bits):

        return None

    def get_feed(self, url=None):

        """

        Returns a feedgenerator.DefaultFeed object, fully populated, for

        this feed. Raises FeedDoesNotExist for invalid parameters.

        """

        if url:

            bits = url.split('/')

        else:

            bits = []

        try:

            obj = self.get_object(bits)

        except ObjectDoesNotExist:

            raise FeedDoesNotExist

        return super(Feed, self).get_feed(obj, self.request)