Question

要在网站主页上创建表单，我创建了一个表单类和一个请求类。不知怎的，我无法将响应收到url querystring。

有人可以帮我这个吗？

views.py

def index(request):
    if request.method == 'GET':
        form = CurrencyConverterForm(request.GET)
        if form.is_valid():
            base_currency = form.data.__getitem__('base_currency')
            counter_currency = form.data.__getitem__('counter_currency')
            base_amount = form.data.__getitem__('base_amount')

        counter_amount = get_conversion_amount(base_currency, counter_currency, datetime.now(), base_amount)

        response = HttpResponseRedirect('/')
        response['base_currency'] = base_currency
        response['counter_currency'] = counter_currency
        response['base_amount'] = base_amount

        return response
else:
    form = CurrencyConverterForm()

context = {'form': form}

return render(request, '../templates/client/index.html', context)

forms.py

class CurrencyConverterForm(forms.Form):
    base_currency = forms.ModelChoiceField(queryset=Currency.objects.all(), required=True)
    counter_currency = forms.ModelChoiceField(queryset=Currency.objects.all(), required=True)
    base_amount = forms.FloatField(required=True)

urls.py

urlpatterns = [
    url(r'^$', views.index),
    url(r'^admin/', admin.site.urls),

]

的index.html

<form action="" method="get">
    {{ form.as_ul }}
    <input type="submit" value="Convert"/>
</form>

Answer 1

您需要像这样访问表单数据：

data = form.cleaned_data['data']

所以你的观点必须如下：

def index(request):
    if request.method == 'GET':
        form = CurrencyConverterForm(request.GET)
        if form.is_valid():
            base_currency = form.cleaned_data['base_currency']
            counter_currency = form.cleaned_data['counter_currency']
            base_amount = form.cleaned_data['base_amount']

        counter_amount = get_conversion_amount(base_currency, counter_currency, datetime.now(), base_amount)

        response = HttpResponseRedirect('/')
        response['base_currency'] = base_currency
        response['counter_currency'] = counter_currency
        response['base_amount'] = base_amount

        return response
else:
    form = CurrencyConverterForm()

context = {'form': form}

return render(request, '../templates/client/index.html', context)

Answer 2

我已经能够解决它。

我实际上需要的代码少得多。

fillViewport="true"

Django基于表单的视图GET响应

2 个答案: