在Django,我如何具体指明外地的缺省价值,以便选择其中之一。
class JobForm(forms.ModelForm):
notification_email =
forms.ChoiceField(choices=[("a","a"),("b","b")],initial="--",required=True)
采用这种方法,但将“a”定为初步价值。
在Django,我如何具体指明外地的缺省价值,以便选择其中之一。
class JobForm(forms.ModelForm):
notification_email =
forms.ChoiceField(choices=[("a","a"),("b","b")],initial="--",required=True)
采用这种方法,但将“a”定为初步价值。
Try to use TypedChoice Field
。 它提供<条码>标准-价值<>。 论点:
notification_email = forms.TypedChoiceField(choices=[("a","a"),("b","b")], empty_value="--", required=True)
以下文为例,缺省显示值为-
。 除非用户选择其中一种有效选择(a
或b
),否则该表即没有提交。
class JobForm(forms.ModelForm):
notification_email = forms.ChoiceField(
choices=[
(None, "--"),
("a","a"),
("b","b"),
],
initial=None,
required=True,
)
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