修改的Django的ModelForm選擇設置

Question

我創建了選擇期權模型：

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

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

然後創建模型的形式從中：

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

我通過這種形式，以模板從views.py：

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

'service'select choice set可以直接從views.py中修改嗎？謝謝。

Answer 1

當然。只需通過選擇元組作爲參數傳遞給你的窗體類當實例吧：

# 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) 

這樣你得到你的模型設置的默認值，也可以從該視圖覆蓋它。