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
  15 @decorate(add_domain, needs_origin=False)
  16 def add_domain(domain, url):
  17     return "%s%s" % (settings.APP_URL, url)
  18
  19 class BaseNodeFeed(Feed):
  20     if old_version:
  21         title_template = "feeds/rss_title.html"
  22         description_template = "feeds/rss_description.html"
  23
  24     def __init__(self, request, title, description, url):
  25         self._title = title
  26         self._description = mark_safe(description)
  27         self._url = url
  28
  29         if old_version:
  30             super(BaseNodeFeed, self).__init__('', request)
  31
  32     def title(self):
  33         return self._title
  34
  35     def link(self):
  36         return self._url
  37
  38     def description(self):
  39         return self._description
  40
  41     def item_title(self, item):
  42         return item.title
  43
  44     def item_description(self, item):
  45         return item.html
  46
  47     def item_link(self, item):
  48         return item.leaf.get_absolute_url()
  49
  50     def item_author_name(self, item):
  51         return item.author.username
  52
  53     def item_author_link(self, item):
  54         return item.author.get_profile_url()
  55
  56     def item_pubdate(self, item):
  57         return item.added_at
  58
  59     if old_version:
  60         def __call__(self, request):
  61             feedgen = self.get_feed('')
  62             response = HttpResponse(mimetype=feedgen.mime_type)
  63             feedgen.write(response, 'utf-8')
  64             return response
  65
  66
  67 class RssQuestionFeed(BaseNodeFeed):
  68     def __init__(self, request, question_list, title, description):
  69         url = request.path + "&" + "&".join(["%s=%s" % (k, v) for k, v in request.GET.items() if not k in (_('page'), _('pagesize'), _('sort'))])
  70         super(RssQuestionFeed, self).__init__(request, title, description, url)
  71
  72         self._question_list = question_list
  73
  74     def item_categories(self, item):
  75         return item.tagname_list()
  76
  77     def items(self):
  78        return self._question_list[:30]
  79
  80 class RssAnswerFeed(BaseNodeFeed):
  81     if old_version:
  82         title_template = "feeds/rss_answer_title.html"
  83
  84     def __init__(self, request, question, include_comments=False):
  85         super(RssAnswerFeed, self).__init__(request, _("Answers to: %s") % question.title, question.html, question.get_absolute_url())
  86         self._question = question
  87         self._include_comments = include_comments
  88
  89     def items(self):
  90         if self._include_comments:
  91             qs = self._question.all_children
  92         else:
  93             qs = self._question.answers
  94
  95         return qs.filter_state(deleted=False).order_by('-added_at')[:30]
  96
  97     def item_title(self, item):
  98         if item.node_type == "answer":
  99             return _("Answer by %s") % item.author.username
 100         else:
 101             return _("Comment by %(cauthor)s on %(pauthor)s's %(qora)s") % dict(
 102                 cauthor=item.author.username, pauthor=item.parent.author.username, qora=(item.parent.node_type == "answer" and _("answer") or _("question"))
 103             )
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