Printing report fails when there is no current term

[muhuko]

Server Error

An internal server error has occurred. This most likely means that you have found a bug in SchoolTool. Please report it on the issue tracker.

Exception

  TypeError: ('Could not adapt', None, <InterfaceClass schooltool.schoolyear.interfaces.ISchoolYear>)
Traceback

  File "/usr/lib/python2.4/site-packages/zope/publisher/publish.py", line 133, in publish
  result = publication.callObject(request, obj)
File "/usr/lib/python2.4/site-packages/zope/app/publication/zopepublication.py", line 167, in callObject
  return mapply(ob, request.getPositionalArguments(), request)
File "/usr/lib/python2.4/site-packages/zope/publisher/publish.py", line 108, in mapply
  return debug_call(obj, args)
Extra information: <bound method StudentReportCardPDFView.__call__ of <zope.app.publisher.browser.viewmeta.StudentReportCardPDFView object at 0xb25066c>>
File "/usr/lib/python2.4/site-packages/zope/publisher/publish.py", line 114, in debug_call
  return obj(*args)
File "/usr/lib/python2.4/site-packages/schooltool/gradebook/browser/pdf_views.py", line 262, in __call__
  pdf_data = self.buildPDF()
File "/usr/lib/python2.4/site-packages/schooltool/gradebook/browser/pdf_views.py", line 254, in buildPDF
  report = ReportCard(None, self.students)
File "/usr/lib/python2.4/site-packages/schooltool/gradebook/browser/pdf_views.py", line 73, in __init__
  self.schoolyear = ISchoolYear(current_term)