Question

接下来是问题：我正在为我的网站使用现有模板。我有一个order页面。我想将自己的模板用于表单

我知道我可以使用{% for field in form %}来实现它。但我需要展示的不是所有领域。例如，这是我的Order模型：

class Order(models.Model):
    state_choices = ('ACTIVE', 'COMPLETED', 'FROZEN')
    order_date = models.DateTimeField(auto_now_add=True)
    delivery_time = models.CharField(max_length=100)
    address_city = models.CharField(max_length=40)
    address_street = models.CharField(max_length=40)
    address_building = models.CharField(max_length=40)
    state = models.CharField(max_length=200, default='ACTIVE')
    client = models.ForeignKey(CustomUser)

我只需要展示：address_city，address_street，address_building和delivery_time。因为在视图中我只返回当前用户并将其设置为客户端。以下是我保存Order：

的观点

def submit(request):
    args = {}
    args['form'] = OrderForm
    if request.POST:
        order_form = OrderForm(request.POST)
        if order_form.is_valid():
            order_form.save()
            user = request.user
            address_country = order_form.cleaned_data['address_country']
            address_city = order_form.cleaned_data['address_city']
            address_building = order_form.cleaned_data['address_building']
            delivery_time = order_form.cleaned_data['delivery_time']
            new_order = Order(address_country=address_country,
                              address_city=address_city,
                              address_building=address_building,
                              delivery_date=delivery_time, client=user)
            new_order.save()
            Basket.objects.filter(client=user).delete()
            return redirect('/order/')
    else:
        return render(request, 'order_page.html', args)

我猜new_order很奇怪，因为order_form.save()会保存它。但是如何将当前会话的用户设置为Order到form？要理解这一切，请参阅我的OrderForm代码：

class OrderForm(forms.ModelForm):
    class Meta():
        model = Order
        fields = ['address_city', 'address_street', 'address_building', 'delivery_time']

Answer 1

我在形式的 init 方法中处理这种逻辑，当在视图中创建表单时，我将请求对象作为kwarg传递给表单以获取其数据来自，然后隐藏适当的字段：

在forms.py ...

中

class YourForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        request = kwargs.pop('request', None)
        super(YourForm, self).__init__(*args, **kwargs)

        if request:
            self.fields['field'].initial = process_request_to_get_value(request)
            self.fields['field'].widget = forms.HiddenInput()
        # More logic here if needed

    class Meta:
        model = Order

在views.py ...

中

def your_view(request):
    if request.method == 'POST':
        form = YourForm(request.POST, request = request)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect('somewhere')
    else:
        form = YourForm(request = request)
    return render_to_response('template',
        {'form': form,},
        context_instance = RequestContext(request))

使用表单的现有模板（不显示所有字段）

1 个答案: