我正在使用 Django 構(gòu)建一個(gè)類似調(diào)查的應(yīng)用程序。我有 3 個(gè)模型（調(diào)查、問(wèn)題、答案）。我需要查詢問(wèn)題模型并拉回問(wèn)題加上每個(gè)問(wèn)題的可能答案。然后，我需要將其作為單個(gè)問(wèn)題顯示在 html 頁(yè)面上，并在列表或其他元素中顯示可能的答案。Django==2.2.1 / Pillow==6.1.0/ pytz==2019.1/ sqlparse==0.3.0/ Python 3.7 我嘗試從 Answers 模型開(kāi)始，但我最終得到重復(fù)的數(shù)據(jù)并且不確定如何呈現(xiàn)。模型.PYclass Question(models.Model): survey = models.ForeignKey(Survey, on_delete=models.CASCADE) question_sequence = models.IntegerField() question_to_ask = models.CharField(max_length=4000, unique=True) def __str__(self): return self.question_to_askclass Answer(models.Model): question = models.ForeignKey(Question, on_delete=models.CASCADE) possibleAnswer = models.CharField(max_length=4000) possibleAnswer_image = models.ImageField(blank=True, null=True) def __str__(self): return self.possibleAnswer意見(jiàn).PYdef survey(request): q = [x for x in Question.objects.all().values()] questions_dict = {'questions': q} # a = [x for x in Answer.objects.select_related().all()] # answers_dict = {'answers': a} return render(request, 'survey_app/survey.html', context=questions_dict).HTML<body> <div class=questions> {% if questions %} <h1> {% for q in questions %}</h1> <p> {{ q.question_to_ask }}</p> <p> {% for a in answers %}</p> <p> {{ a.question.question_to_ask }}</p> {% endfor %} {% endfor %} {% else %} <p> NO RECORDS SHOWN</p> {% endif %} </div></body>我的目標(biāo)是在 html 上顯示：Question_To_Ask (q1)PossibleAnswer / possibleAnswer_image（用于 q1）PossibleAnswer / possibleAnswer_image（用于 q1）Question_To_Ask (q2)PossibleAnswer / possibleAnswer_image（對(duì)于 q2）PossibleAnswer / possibleAnswer_image（對(duì)于 q2）PossibleAnswer / possibleAnswer_image（對(duì)于 q2）PossibleAnswer / possibleAnswer_image（對(duì)于 q2）ETC...
Django 模型 - 如何從 2 個(gè)模型中提取數(shù)據(jù)并渲染
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2022-04-27 16:05:01
