forum/feed.py

   1 try:
   2     from django.contrib.syndication.views import Feed, FeedDoesNotExist, add_domain
   3     old_version = False
   4 except:
   5     from django.contrib.syndication.feeds import Feed, FeedDoesNotExist, add_domain
   6     old_version = True
   7
   8 from django.http import HttpResponse
   9 from django.utils.translation import ugettext as _
  10 from django.utils.safestring import mark_safe
  11 from models import Question
  12 from forum import settings
  13 from forum.modules import decorate
  14 from forum.utils.pagination import generate_uri
  15
  16 @decorate(add_domain, needs_origin=False)
  17 def add_domain(domain, url):
  18     return "%s%s" % (settings.APP_URL, url)
  19
  20 class BaseNodeFeed(Feed):
  21     if old_version:
  22         title_template = "feeds/rss_title.html"
  23         description_template = "feeds/rss_description.html"
  24
  25     def __init__(self, request, title, description, url):
  26         self._title = title
  27         self._description = mark_safe(unicode(description))
  28         self._url = url
  29
  30         if old_version:
  31             super(BaseNodeFeed, self).__init__('', request)
  32
  33     def title(self):
  34         return self._title
  35
  36     def link(self):
  37         return self._url
  38
  39     def description(self):
  40         return self._description
  41
  42     def item_title(self, item):
  43         return item.title
  44
  45     def item_description(self, item):
  46         return item.html
  47
  48     def item_link(self, item):
  49         return item.leaf.get_absolute_url()
  50
  51     def item_author_name(self, item):
  52         return item.author.username
  53
  54     def item_author_link(self, item):
  55         return item.author.get_profile_url()
  56
  57     def item_pubdate(self, item):
  58         return item.added_at
  59
  60     if old_version:
  61         def __call__(self, request):
  62             feedgen = self.get_feed('')
  63             response = HttpResponse(mimetype=feedgen.mime_type)
  64             feedgen.write(response, 'utf-8')
  65             return response
  66
  67
  68 class RssQuestionFeed(BaseNodeFeed):
  69     def __init__(self, request, question_list, title, description):
  70         url = request.path + "&" + generate_uri(request.GET, (_('page'), _('pagesize'), _('sort')))
  71         super(RssQuestionFeed, self).__init__(request, title, description, url)
  72
  73         self._question_list = question_list
  74
  75     def item_categories(self, item):
  76         return item.tagname_list()
  77
  78     def items(self):
  79        return self._question_list[:30]
  80
  81 class RssAnswerFeed(BaseNodeFeed):
  82     if old_version:
  83         title_template = "feeds/rss_answer_title.html"
  84
  85     def __init__(self, request, question, include_comments=False):
  86         super(RssAnswerFeed, self).__init__(request, _("Answers to: %s") % question.title, question.html, question.get_absolute_url())
  87         self._question = question
  88         self._include_comments = include_comments
  89
  90     def items(self):
  91         if self._include_comments:
  92             qs = self._question.all_children
  93         else:
  94             qs = self._question.answers
  95
  96         return qs.filter_state(deleted=False).order_by('-added_at')[:30]
  97
  98     def item_title(self, item):
  99         if item.node_type == "answer":
 100             return _("Answer by %s") % item.author.username
 101         else:
 102             return _("Comment by %(cauthor)s on %(pauthor)s's %(qora)s") % dict(
 103                 cauthor=item.author.username, pauthor=item.parent.author.username, qora=(item.parent.node_type == "answer" and _("answer") or _("question"))
 104             )
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