doc/web/howto/listings/subviews-1.py

   1 from twisted.web.template import (
   2     XMLFile, TagLoader, Element, renderer, flattenString)
   3 from twisted.python.filepath import FilePath
   4
   5 class WidgetsElement(Element):
   6     loader = XMLFile(FilePath('subviews-1.xml'))
   7
   8     widgetData = ['gadget', 'contraption', 'gizmo', 'doohickey']
   9
  10     @renderer
  11     def widgets(self, request, tag):
  12         for widget in self.widgetData:
  13             yield WidgetElement(TagLoader(tag), widget)
  14
  15 class WidgetElement(Element):
  16     def __init__(self, loader, name):
  17         Element.__init__(self, loader)
  18         self._name = name
  19
  20     @renderer
  21     def name(self, request, tag):
  22         return tag(self._name)
  23
  24 def printResult(result):
  25     print result
  26
  27 flattenString(None, WidgetsElement()).addCallback(printResult)