Question

我在Djano中有一个选择菜单，在models.py中有这样的构建。

execution_time = models.IntegerField(
    choices=((i, i) for i in (0, 15, 30, 45, 60)),
    blank=False,
    default=30,
    verbose_name='estimated time'
)

我还在forms.py和clean方法中有一个文本字段（当用户在execution_time中选择0作为选项时出现）。

class DummyForm(forms.ModelForm):    
    admin_time = forms.CharField(
        help_text=_('Enter If more than 60 minutes.'),
        required=False,
        widget=forms.TextInput(attrs={'class': 'fill-width'}))

def clean(self):
    cleaned_data = super(DummyForm, self).clean()
    admin_time = cleaned_data.get('admin_time')
    if admin_time:
        cleaned_data['execution_time'] = admin_time
    return cleaned_data

select_ option（execution_time）的值被admin_time覆盖。但它没有得到验证。因为我在选择菜单中只有15,30,45,60。另外，我无法删除选择选项。我应该如何更改验证，以便我不会收到类似“值80不是有效选择”的错误。

Answer 1

错误输出的验证是在模型级别而不是表单级别。您需要在表单级别设置用户可用的选项，并允许模型接受模型上的任何数字。

class ExampleModel(models.Model):
    execution_time = models.IntegerField(
        blank=False,
        default=30,
        verbose_name='estimated time'
    )


class DummyForm(models.ModelForm):
    admin_time = forms.IntegerField(
        help_text=_('Enter If more than 60 minutes.'),
        required=False,
        widget=forms.TextInput(attrs={'class': 'fill-width'}))
    execution_time = forms.IntegerField(
        widget=forms.Select(choices=((i, i) for i in (0, 15, 30, 45, 60)))

    def clean(self):
        cleaned_data = super(DummyForm, self).clean()
        admin_time = cleaned_data.get('admin_time')
        if admin_time:
            cleaned_data['execution_time'] = admin_time
        return cleaned_data

将Choice Field Value更改为新值Django

1 个答案: