django 模板中不显示表单

Question

django 不在我的模板中显示我的表单 问题出在哪里？

forms.py

from django import forms

class QuestionForm(forms.Form):
    massage = forms.CharField(widget=forms.TextInput)

视图.py

from cheatexam_question.forms import QuestionForm
def newquestion(request):
    if request.method == 'POST':
        form = QuestionForm(request.POST)
        context = {
            'form': form
        }
    return render(request, 'homepage.html', context)

模板

        <form method="post">
            {% csrf_token %}
            {{ form }}
      <input class="btn btn-warning form-control" type="submit" value="ثبت سوال">
        </form>

Answer 1

GET 请求用于检索页面，而 POST 请求用于提交表单。 这里只在 POST 请求中构造一个表单。 对于 GET 请求，您甚至没有定义context ，因此会引发错误。

from cheatexam_question.forms import QuestionForm

def newquestion(request):
    if request.method == 'POST':
        form = QuestionForm(request.POST)
        # …
    else:  # GET request
        form = QuestionForm()
    context = {
        'form': form
    }
    return render(request, 'homepage.html', context)

Answer 2

在 request.post 之前采取这样的形式：

def newquestion(request):
    form = QuestionForm(request.POST or None)
        if form.is_valid():
        .
        .
    context = {'form':form}
    retrun render(request , 'template.html' , context)

注意：上下文和返回不在“if”块中