如何在DetailView中针对数据库验证和比较数据-Django

时间:2019-12-02 16:22:41

标签: django django-forms django-views django-database

我有一个ChallengeDetailView,它显示了类似博客文章的挑战的详细信息。我在同一页面上也有一个表单字段,它应该得到挑战的答案,并将其与数据库进行比较。到目前为止,这是我所做的;

class ChallengeDetailView(DetailView):
    model = Challenge

    def get_context_data(self, **kwargs):
        context = super(ChallengeDetailView, self).get_context_data(**kwargs)
        context['form'] = FlagForm
        return context
from django import forms


class FlagForm(forms.Form):
    flag = forms.CharField(label='Challenge Flag',required=True)
class FlagFormView(FormView):
    form_class = FlagForm
    success_url = reverse_lazy('challenge-detail')

我尝试实现如下所示的简单逻辑;

def get_flag(self, request):
    if self.request.method == 'POST':
        form = FlagForm(request.POST)
        if form.is_valid():
            flag = form.cleaned_data.get('flag')
            if flag == Challenge.flag:
                return messages.success("You found the flag!")
    else:
        return FlagForm()

我试图将其包含在form_valid()方法中,但无法使其在ChallengeDetailView中起作用。我愿意接受任何建议。我来自Symfony的背景并且对Django很陌生。

1 个答案:

答案 0 :(得分:0)

最后我能够弄清楚。 我在Forms.py

中创建了一个常规表单
from django import forms

class FlagForm(forms.Form):
    flag = forms.CharField()

在views.py中,我有一个详细信息视图和一个带有SingleObjectMixin的表单视图,可用于当前帖子。

class ChallengeDisplay(DetailView):
model = Challenge

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    context['form'] = FlagForm()
    return context

具有SingleObjectMixin的表单视图;

class ChallengeFormEntry(SingleObjectMixin, FormView):
    template_name = 'ctf/challenge_detail.html'
    form_class = FlagForm
    model = Challenge

def post(self, request, *args, **kwargs):
    if request.method == 'POST':
        form = FlagForm(request.POST)
        if form.is_valid():
            flag = form.cleaned_data.get('flag')
            if self.get_object().flag == flag:
                messages.success(request, 'good job!')
            else: messages.warning(request, 'Try again!')
    form = FlagForm()
    return super().post(request, *args, **kwargs)

def get_success_url(self):
    return reverse('challenge-detail', kwargs={'pk': self.get_object().pk, 'slug':self.get_object().slug})