skins/custom_generic/RSS.py

   1 ##parameters=
   2 ##
   3 from ZTUtils import Batch
   4 from ZTUtils import LazyFilter
   5 from Products.CMFCore.utils import getUtilityByInterfaceName
   6 from Products.CMFDefault.utils import decode
   7
   8 stool = getUtilityByInterfaceName('Products.CMFCore.interfaces.ISyndicationTool')
   9
  10
  11 if not stool.isSyndicationAllowed(context):
  12     context.REQUEST.RESPONSE.redirect(context.absolute_url() +
  13              '/rssDisabled?portal_status_message=Syndication+is+Disabled')
  14     return
  15
  16
  17 options = {}
  18
  19 options['channel_info'] = { 'base': stool.getHTML4UpdateBase(context),
  20                             'description': context.Description(),
  21                             'frequency': stool.getUpdateFrequency(context),
  22                             'period': stool.getUpdatePeriod(context),
  23                             'title': context.Title(),
  24                             'url': context.absolute_url() }
  25
  26 #key, reverse = context.getDefaultSorting()
  27 # TODO: have an independant sorting rule for syndication.
  28 # for the moment, RSS may always report recent changes.
  29 key, reverse = 'modified', True
  30 items = stool.getSyndicatableContent(context)
  31 items = sequence.sort( items, ((key, 'cmp', reverse and 'desc' or 'asc'),) )
  32 items = LazyFilter(items, skip='View')
  33 b_size = stool.getMaxItems(context)
  34 batch_obj = Batch(items, b_size, 0, orphan=0)
  35 items = []
  36 for item in batch_obj:
  37     items.append( { 'date': item.modified().HTML4(),
  38                     'description': item.Description(),
  39                     'listCreators': item.listCreators(),
  40                     'listSubjects': item.Subject(),
  41                     'publisher': item.Publisher(),
  42                     'rights': item.Rights(),
  43                     'title': item.Title(),
  44                     'url': item.absolute_url() } )
  45 options['listItemInfos'] = tuple(items)
  46
  47 return context.RSS_template(**decode(options, script))