Question

models.py有

class Question(models.Model):
    Question_Id = models.AutoField(primary_key=True)
    Question_Text = models.TextField(max_length=1000)

    def __str__(self):
        return self.Question_Text

    def __int__(self):
        return self.Question_Id

class QuestionChoices(models.Model):
    Choice_Id = models.AutoField(primary_key=True)
    Question_Choices_Question_Id = models.ForeignKey("Question", on_delete=models.CASCADE)
    Choice = models.TextField(max_length=500)
    Is_Right_Choice = models.BooleanField(default=False)

views.py文件具有以下内容

def QuestionDisplay(request):
    retrieved_questions_id = Question.objects.values("Question_Id")
    retrieved_questions = Question.objects.filter(Question_Id = retrieved_questions_id)
    display_content = {retrieved_questions_id: retrieved_questions}
    return render(request, 'cgkapp/Question_page.html', context=display_content)

模板文件夹Question_page.html有

{% block body_block %}
    <table>
        <thead>
            <th>Questions</th>
        </thead>
        {% for quest in display_content %}
            <tr>
                <td>{{quest.Question_Text}</td>
            </tr>
        {% endfor %}
    </table>
{% endblock %}

该页面将问题显示为表格标题，但不显示模型中的实际问题。可能是什么原因？

Answer 1

您有拼写错误，在Question_Text}

之后您错过了}

<td>{{quest.Question_Text}}</td>

评论后更新

如下所示，不知道为什么但我觉得你很困惑。它将解决您的问题

<强> models.py

class Question(models.Model):
    # `id` primary key is already present no need to define.
    question_text = models.TextField(max_length=1000)

    def __str__(self):
        return self.question_text

<强> views.py

def question_display(request):
    # There is no need of 2 queries, you can get that in single query.
    questions = Question.objects.all();

    # If you want only question ids 
    question_ids = Question.objects.values('id')

    # You can send multiple variables to the template using context dictionary and directly access them there.
    context = {'questions': questions, 'question_ids':question_ids}

    return render(request, 'cgkapp/Question_page.html', context)

在模板中

 #Show questions with only question texts
 <table>
    <thead>
        <th>Questions</th>
    </thead>
    {% for quest in questions %}
        <tr>
            <td>{{quest.question_text}}</td>
        </tr>
    {% endfor %}
</table>

# If you also want to show question text with ids.
<table>
    <thead>
        <th>Question ID</th>
        <th>Question Text</th>
    </thead>
    {% for quest in questions %}
        <tr>
            <td>{{quest.id}}</td>
            <td>{{quest.question_text}}</td>
        </tr>
    {% endfor %}
</table>
# If you want to show only Question IDs
<table>
    <thead>
        <th>Question ID</th>
    </thead>
    {% for quest in question_ids %}
        <tr>
            <td>{{quest}}</td>
        </tr>
    {% endfor %}
</table>

#This same thing can be done this way also.
<table>
    <thead>
        <th>Question ID</th>
    </thead>
    {% for quest in questions %}
        <tr>
            <td>{{quest.id}}</td>
        </tr>
    {% endfor %}
</table>

Answer 2

如果只是拼写错误，您会看到正在呈现的字符串{{quest.Question_Text}。问题出在您的背景上。你正在那里发送一个字典，其中键应该是字符串，

display_content = {'retrieved_questions_id': retrieved_questions}

然后，在您的模板中，您将迭代retrieved_questions_id而不是display_content。 display_content只是您存储值的字典的名称。

无法显示表格的内容

2 个答案: