Question

在ModelChoiceField的只读InputField中是否有任何更改数据显示的内容，但是保留了提交表单的对象的主键？

views.py

class BookingCreateView(LoginRequiredMixin, CreateView):
    login_url = 'login'
    form_class = BookingForm
    template_name = 'booking_add.html'
    success_url = reverse_lazy('booking_list')

    def get_initial(self):
        initial = super(BookingCreateView, self).get_initial()
        initial['date'] = datetime.datetime.strptime(self.request.GET.get('date'), '%d-%m-%Y')
        initial['room'] = get_object_or_404(Room, id=self.request.GET.get('room'))
        initial['start'] = get_object_or_404(Period, number=self.request.GET.get('start'))
        return initial

    def form_valid(self, form):
        form.instance.user = self.request.user
        return super().form_valid(form)

forms.py
class BookingForm(forms.ModelForm):
    class Meta:
        model = Booking
        fields= ['room', 'date', 'start', 'end']

    def __init__(self, *args, **kwargs):
        initial_args = kwargs.get('initial', None)
        if initial_args:
            super(BookingForm, self).__init__(*args, **kwargs)
            self.fields['room'].widget = forms.TextInput()
            self.fields['start'].widget = forms.TextInput()
            self.fields['room'].widget.attrs['readonly'] = True
            self.fields['date'].widget.attrs['readonly'] = True
            self.fields['start'].widget.attrs['readonly'] = True
            self.fields['end'].queryset = Period.objects.get_available_periods(
                initial_args['room'], initial_args['date'], initial_args['start'])


    def clean(self):
        cleaned_data = super(BookingForm, self).clean()
        now = timezone.localtime(timezone.now())

        bookings = Booking.objects.filter(room=cleaned_data['room'], date=cleaned_data['date'])
        booking_start_time = datetime.datetime.combine(cleaned_data['date'], cleaned_data['start'].start, timezone.get_current_timezone())
        booking_end_time = datetime.datetime.combine(cleaned_data['date'], cleaned_data['end'].end, timezone.get_current_timezone())

        for booking in bookings:
            if booking.check_overlap(booking_start_time, booking_end_time):
                raise forms.ValidationError

        if now > datetime.datetime.combine(cleaned_data['date'],
            cleaned_data['start'].end, timezone.get_current_timezone()):
            raise forms.ValidationError

        return cleaned_data

booking_add.html
{% block content %}
    <main>
        <div class="reg-form">
            <form class="form" method="post" action="">
                {% csrf_token %}
                <label for="room">Phòng</label>
                {{ form.room }}
                <label for="date">Ngày</label>
                {{ form.date }}
                <label for="start">Ca bắt đầu</label>
                {{ form.start }}
                <label for="end">Ca kết thúc</label>
                {{ form.end }}
                <button type="submit">Đăng ký</button>
            </form>
        </div>
    </main>
{% endblock %}

页面呈现如下：

我想要的是在标签'Phòng'下的输入，该输入表示Room，使用room对象方法 str （）填充，而不是Room对象的主键，并且提交过程仍会发送主键。有什么方法可以实现？注意：前三个字段必须是只读的，并且它们的数据是通过GET请求给出的。

Answer 1

我知道，但是我希望现场空间是只读的，并且select小部件不具有该属性。

如何更改ModelChoiceField的文本输入中的数据显示？

1 个答案: