将选定的值从 Django 表单发送到 views.py

Question

我必须将一些数据发送到我有电话对象的数据库。为此，我需要选择所需的电话号码并将数据插入数据库中。要求是显示属于当前登录用户的电话号码。

在我的表单中，我有 3 个 textInputs 和一个 MultipleChoiceField，其中显示了不同的电话号码。我的问题是：如何在 view.py 上获取选定的 phone_num 实例并将其发送到我的表单？

我的观点.py：

def phone_config(request):
    phone = Phone.objects.get(phone_num = 611111111)
    phone_nums = Phone.objects.filter(user_id = request.user.id).values_list('phone_num', flat=True)

    if request.method == 'POST':
        form = phoneForm(phone_nums, request.POST, instance=phone)
        if form.is_valid():
            form.save()
            return redirect(reverse('gracias'))
    else:
        form = phoneForm(phone_nums, instance=phone)
    return render(request, 'heroconfigurer/heroconfigurer.html', {'form': form})


def gracias_view(request):
    return render(request, 'heroconfigurer/gracias.html')

我的forms.py：

class phoneForm(ModelForm):

    class Meta:
        model = Phone
        fields = ['phone_num', 'num_calls', 'time_btwn_calls', 'psap']
        widgets = {'phone_num': Select(attrs={'class': 'form-control'}), 
                'num_calls': TextInput(attrs={'class': 'form-control'}),
                'time_btwn_calls': TextInput(attrs={'class': 'form-control'}), 
                'psap': TextInput(attrs={'class': 'form-control'})
                  }
        labels = {
                'phone_num': ('Select phone number'),
                'num_calls': ('Number of calls'),
                'time_btwn_calls': ('Time between calls'),
                'psap': ('PSAP'),
        }

    def __init__(self, phone_nums, *args, **kwargs):
        super(tcuForm, self).__init__(*args, **kwargs)
        self.fields['phone_num'].queryset = Sim.objects.filter(phone_num__in = phone_nums)

Answer 1

如果表单有效，您可以在表单 cleaned_data 中简单地访问表单中的任何字段值：

view.py：

def phone_config(request):
    phone_nums = Phone.objects.filter(user_id = request.user.id).values_list('phone_num', flat=True)

    if request.method == 'POST':
        form = phoneForm(request.POST)
        if form.is_valid():
            phone_num = form.cleaned_data.get('phone_num') # here you get the selected phone_num
            phone_obj = Phone.objects.get(phone_num=phone_num)

        ... # the rest of the view

更多详情请查看accessing-clean-data