datatracker/ietf/liaisons/feeds.py
Bill Fenner f0b8e49ed5 Add two liaisons feeds:
* /feed/liaison/recent/ = last 15 liaisons
 * /feed/liaison/from/`from`/ = all liaisons from `from`, which is either an IETF wg acronym (all lowercase) or a FromBodies body_name (e.g., MFA%20Forum)
 - Legacy-Id: 903
2007-07-30 18:11:50 +00:00

58 lines
1.7 KiB
Python

# Copyright The IETF Trust 2007, All Rights Reserved
from django.contrib.syndication.feeds import Feed, FeedDoesNotExist
from django.utils.feedgenerator import Atom1Feed
from ietf.liaisons.models import LiaisonDetail, FromBodies
from ietf.idtracker.models import Acronym
# A slightly funny feed class, the 'object' is really
# just a dict with some parameters that items() uses
# to construct a queryset.
class Liaisons(Feed):
feed_type = Atom1Feed
def get_object(self, bits):
obj = {}
if bits[0] == 'recent':
if len(bits) != 1:
raise FeedDoesNotExist
obj['title'] = 'Recent Liaison Statements'
obj['limit'] = 15
return obj
if bits[0] == 'from':
if len(bits) != 2:
raise FeedDoesNotExist
obj['title'] = 'Liaison Statements from %s' % bits[1]
try:
acronym = Acronym.objects.get(acronym=bits[1])
obj['filter'] = {'from_id': acronym.acronym_id}
except Acronym.DoesNotExist:
# would like to use from_body__body_name but relation
# is broken due to database structure
frmlist = [b['from_id'] for b in FromBodies.objects.filter(body_name=bits[1]).values('from_id')]
if not frmlist:
raise FeedDoesNotExist
obj['filter'] = {'from_id__in': frmlist}
return obj
def title(self, obj):
return obj['title']
def link(self, obj):
# no real equivalent for any objects
return '/liaison/'
def description(self, obj):
return self.title(obj)
def items(self, obj):
# Start with the common queryset
qs = LiaisonDetail.objects.all().order_by("-submitted_date")
if obj.has_key('filter'):
qs = qs.filter(**obj['filter'])
if obj.has_key('limit'):
qs = qs[:obj['limit']]
return qs
def item_pubdate(self, item):
return item.submitted_date