Django表单未在HTML中呈现

Question

**renders**的视图

def codequestion(request, question_id):
    question = Question.objects.get(pk=question_id)
    return render(request, 'polls/codequestion.html', {'question': question})

对提交调用的视图是

^{pr2}$

班级

from django import forms

class CodeForm(forms.Form):
    solution = forms.CharField(widget=forms.Textarea)

模板

<form action="{% url 'codequestion_evaluate' question.id %}" method="post">
{% csrf_token %}
{{form.as_p}}   
<input type="submit" value="Submit" />
</form>

我没有在HTML页面中显示表单字段，我只能看到submit按钮。在

Answer 1

假定要显示未填充表单的视图根本不会创建表单对象。它应该创建一个表单对象并将其传递给模板，如下所示：

def codequestion(request, question_id):
    question = Question.objects.get(pk=question_id)
    form = CodeForm()
    return render(request, 'polls/codequestion.html', {'question': question, 'form': form})

---

{但是你最好还是跟着。为此，您应该：

1. 删除codequestion。所有操作（显示未填写的表单、显示有错误的已提交表单、处理正确提交的表单）将由单个视图处理。

2. 配置url路由，使codequestion_evaluate视图处理显示未填充表单的页面。

3. 更改codequestion_evaluate使其遵循模式：

   def codequestion_evaluate(request, question_id):
       if request.method == 'POST':
           form = CodeForm(request.POST)
           if form.is_valid():
               # The form has been submitted and is valid
               # process the data and redirect to a "thank you" page
               data = form.cleaned_data
               return HttpResponseRedirect('/thanks/')
           else:
               # just display an empty form
               form = CodeForm()
       # you can optionally add 'question' if you need it in your template
       question = Question.objects.get(pk=question_id)
       return render(request, 'polls/codequestion.html', {'form': form, 'question': question})
   

Answer 2

form引用上下文数据中的一个变量，因为您没有将它包含在上下文数据中，它找不到它，因此没有任何要呈现的内容，您需要包含它。在

def codequestion(request, question_id):

    question = Question.objects.get(pk=question_id)
     return render(request, 'polls/codequestion.html',
                   {'question': question, 'form': CodeForm()})

Answer 3

试着换衣服

class CodeForm(forms.Form):

到

^{pr2}$

我也遇到了同样的问题，但问题解决了。在