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ivle/webapp/tutorial/service.py
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        except ValueError:
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            raise NotFound()
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        # XXX Hack around Google Code issue #87
 
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        # Query from the given date +1 secnod.
 
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        # Date is in seconds (eg. 3:47:12), while the data is in finer time
 
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        # (eg. 3:47:12.3625). The query "date <= 3:47:12" will fail because
 
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        # 3:47:12.3625 is greater. Hence we do the query from +1 second,
 
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        # "date <= 3:47:13", and it finds the correct submission, UNLESS there
 
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        # are multiple submissions inside the same second.
 
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        date += datetime.timedelta(seconds=1)
 
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        worksheet_exercise = req.store.find(WorksheetExercise,
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            WorksheetExercise.exercise_id == exercise,
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            WorksheetExercise.worksheet_id == Worksheet.id,