quizzer/ui/__init__.py

   1 from .. import answerdb as _answerdb
   2
   3
   4 class UserInterface (object):
   5     "Give a quiz over a generic user interface"
   6     def __init__(self, quiz=None, answers=None, stack=None):
   7         self.quiz = quiz
   8         if answers is None:
   9             answers = _answerdb.AnswerDatabase()
  10         self.answers = answers
  11         if stack is None:
  12             stack = quiz.leaf_questions()
  13         self.stack = stack
  14
  15     def run(self):
  16         raise NotImplementedError()
  17
  18     def display_results(self):
  19         raise NotImplementedError()
  20
  21     def get_question(self):
  22         if self.stack:
  23             return self.stack.pop(0)
  24
  25     def process_answer(self, question, answer):
  26         correct = question.check(answer)
  27         self.answers.add(question=question, answer=answer, correct=correct)
  28         if not correct:
  29             self.stack.insert(0, question)
  30             for qid in reversed(question.dependencies):
  31                 self.stack.insert(0, self.quiz.get(id=qid))
  32         return correct