Django预先安装的radiobutton不工作

Question

我想要一个使用django形式的预填充单片机。但是不能制作它。我可以像这样传递模型并检查它是真还是假。但是如何使用djangoform呢。

<input type="radio" value="True" name="power_windows"
                                                               {% if interiorfeatures.power_windows %}checked="true"{% endif %}>Yes

我的代码示例如下所示

表格

   class InteriorfeaturesForm(forms.ModelForm):
      class Meta:
        model = InteriorFeatures
        fields = ['power_steering', 'power_windows']
      power_steering =forms.ModelChoiceField(queryset=InteriorFeatures.objects.all(),
                                widget=forms.RadioSelect())

模型

---
    class InteriorFeatures(models.Model):
        class Meta:
            db_table = 'interior_features'
        variant = models.ForeignKey(Variant)
        power_steering = models.BooleanField(default=False)
        power_windows = models.BooleanField(default=False)

视图

try:
    interiorfeatures = InteriorFeatures.objects.get(variant=variant)
except InteriorFeatures.DoesNotExist:
            interiorfeatures = None
    interiorform = InteriorfeaturesForm(instance=interiorfeatures)
return render(request, 'general/specifications.html',
                      {'dimensionsform': DimensionForm, 'engineform': EngineForm, 'brakeform': BrakeForm,
                       'capacityform': CapacityForm, 'mileageform': MileageForm, 'priceform': PriceForm,
                       'steeringform': SteeringForm, 'interiorform': interiorform, 'interiorfeatures': interiorfeatures,
                       'variant': variant, 'price': price, 'steering': steering, 'wheel': wheel, 'wheelform': WheelForm,
                       'dimensions': dimensions, 'engine': engine, 'brake': brake, 'capacity': capacity,
                       'mileage': mileage})

HTML

- {{interiorform.power_steering}}

Answer 1

您只需将power_windows添加到表单字段中，如下所示：

class InteriorfeaturesForm(forms.ModelForm):
    class Meta:
        model = InteriorFeatures
        fields = ['power_steering', 'power_windows']
    power_steering =forms.ModelChoiceField(queryset=InteriorFeatures.objects.all(),
                                           widget=forms.RadioSelect())
    power_windows = forms.BooleanField()

默认情况下它会给你一个复选框，但如果你坚持使用单选按钮，你可以这样做：

power_windows = forms.TypedChoiceField(coerce=lambda x: x == 'True',
                                       choices=((False, 'False'), (True, 'True')),
                                       widget=forms.RadioSelect)