Django2 如何在基于类的视图中创建一些条件

debugcn 发表于 Dev

阿加马亚辛

请我有一个问题，我想从我的表单中检查两个日期之间的差异，然后如果日期大于其他属性，则允许使用我的类 based_View 创建对象，如果不将其渲染到其他页面而不插入任何内容在数据库中。这是我的

    # view  
class AddVacation(LoginRequiredMixin, CreateView):
    form_class = VacationCreateForm
    template_name = 'vacation.html'
    login_url = 'login'

    def form_valid(self, form):
        instance = form.save(commit=False)
        instance.employee = self.request.user
        return super(AddVacation, self).form_valid(form)

    # form:  
class VacationCreateForm(forms.ModelForm):

    class Meta:
        model = VacationModel
        fields = [
        'type',
        'startDate',
        'enddate',
        ]

拉乌夫

class VacationCreateForm(forms.ModelForm):
    class Meta:
        model = VacationModel
        fields = [
            'type',
            'startDate',
            'enddate',
        ]
    def clean(self):
        start_date = self.cleaned_data['start_date']
        end_date = self.cleaned_data['end_date']
        from dateutils import parse
        start_date = parse(start_date)
        end_date = parse(end_date)
        # make your calculations
        raise forms.ValidationError("message.")

class AddVacation(LoginRequiredMixin, CreateView):
    form_class = VacationCreateForm
    template_name = 'vavcation.html'
    login_url = 'login'

    def post(self, request, *args, **kwargs):
        """
        Handles POST requests, instantiating a form instance with the passed
        POST variables and then checked for validity.
        """
        form = self.get_form()
        if form.is_valid():
            return self.form_valid(form)
        else:
            redirect(to_ur_another_view)

我不是在解决您的具体问题，我只是提供想法或您可以做些什么来跳过您的问题

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