Question

我创建了带有选项选项的模型：

SERVICE_CHOICES = (
    ('Apps', 'Apps'),
    ('Ask', 'Ask'),
    ('Auth', 'Auth')

class InputsModelExtended(models.Model):
    service = models.CharField(max_length=1000, choices=SERVICE_CHOICES, blank=True)

然后从中创建模型表单：

class InputsModelExtendedForm(ModelForm):
    class Meta:
        model = InputsModelExtended
        widgets = {'service': forms.fields.Select(attrs={'class': 'my_select_boxx'})}

我将此表单传递给views.py：

中的模板

def input_form(request):
    form = InputsModelExtendedForm
    return render(request, 'inputs_forms_css.html', {'form': form})

可以直接从views.py修改“服务”选择集吗？ THX。

Answer 1

不确定。在实例化它时，只需将选择元组作为参数传递给表单类：

# some code left out for brevity

class InputsModelExtendedForm(ModelForm):
    class Meta:
        model = InputsModelExtended

    def __init__(self, *args, **kwargs):
        service_choices = kwargs.pop('service_choices')
        super(InputsModelExtendedForm, self).__init__(*args, **kwargs)

        if service_choices:
            self.fields['service'] = forms.ChoiceField(choices=service_choices,
                                                       required=False)

# example usage:

def my_view(request):
    service_choices = (
        ('Foo', 'Foo',),
        ('Bar', 'Bar',),
        ('Baz', 'Baz',),
    )

    form = InputsModelExtendedForm(request.POST or None, service_choices=service_choices)

这样您就可以获得在模型上设置的默认值，或者可以从视图中覆盖它。

修改django modelform选择集

1 个答案: