UnicodeEncodeError in search field of interventions

[Asupperi]

When searching persons with tilde character like á, ó etc, the following error is returned:
Excepción

  UnicodeEncodeError: 'ascii' codec can't encode character u'\xf3' in position 119: ordinal not in range(128)
Traza

  File "/usr/lib/python2.6/dist-packages/zope/publisher/publish.py", line 132, in publish
  result = publication.callObject(request, obj)
File "/usr/lib/python2.6/dist-packages/zope/app/publication/zopepublication.py", line 207, in callObject
  return mapply(ob, request.getPositionalArguments(), request)
File "/usr/lib/python2.6/dist-packages/zope/publisher/publish.py", line 107, in mapply
  return debug_call(obj, args)
Extra information: <zope.browserpage.simpleviewclass.SimpleViewClass from /usr/lib/python2.6/dist-packages/schooltool/intervention/browser/intervention_startup.pt object at 0xa435e10>
File "/usr/lib/python2.6/dist-packages/zope/publisher/publish.py", line 113, in debug_call
  return obj(*args)
File "/usr/lib/python2.6/dist-packages/zope/browserpage/simpleviewclass.py", line 44, in __call__
  return self.index(*args, **kw)
File "/usr/lib/python2.6/dist-packages/zope/browserpage/viewpagetemplatefile.py", line 83, in __call__
  return self.im_func(im_self, *args, **kw)
File "/usr/lib/python2.6/dist-packages/zope/browserpage/viewpagetemplatefile.py", line 51, in __call__
  sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/usr/lib/python2.6/dist-packages/zope/pagetemplate/pagetemplate.py", line 113, in pt_render
  strictinsert=0, sourceAnnotations=sourceAnnotations)()
Template "/usr/lib/python2.6/dist-packages/schooltool/intervention/browser/intervention_startup.pt"
File "/usr/lib/python2.6/dist-packages/zope/tal/talinterpreter.py", line 271, in __call__
  self.interpret(self.program)
File "/usr/lib/python2.6/dist-packages/zope/tal/talinterpreter.py", line 343, in interpret
  handlers[opcode](self, args)
File "/usr/lib/python2.6/dist-packages/zope/tal/talinterpreter.py", line 851, in do_condition
  if not self.tal or self.engine.evaluateBoolean(condition):
File "/usr/lib/python2.6/dist-packages/zope/tales/tales.py", line 701, in evaluateBoolean
  return not not self.evaluate(expr)
File "/usr/lib/python2.6/dist-packages/zope/tales/tales.py", line 696, in evaluate
  return expression(self)
Template "/usr/lib/python2.6/dist-packages/schooltool/intervention/browser/intervention_startup.pt", line 1, column 0
  Expression: <PathExpr standard:u'view/update'>
File "/usr/lib/python2.6/dist-packages/zope/tales/expressions.py", line 217, in __call__
  return self._eval(econtext)
File "/usr/lib/python2.6/dist-packages/zope/tales/expressions.py", line 211, in _eval
  return ob()
File "/usr/lib/python2.6/dist-packages/schooltool/intervention/browser/intervention.py", line 293, in update
  self.request.response.redirect(url)
File "/usr/lib/python2.6/dist-packages/zope/publisher/browser.py", line 743, in redirect
  if base and isRelative(str(location)):

[Asupperi (arskacr)]

I think that this error also affects on gradebooks ability to order alphabetically, por instance:
Gómez is after Gutiérrez.

[Douglas Cerna (replaceafill)]

Probably the error is that the update method of the schooltool.intervention.browser.intervention.InterventionStartupView class is concatenating the SEARCH_STUDENT_NAME without encoding it first.

Sorting in the gradebook was fixed recently.