Question

我有一个Django ModelForm ChoiceField，并希望在用户访问页面时在下拉列表中显示“选择选项”文本。（“选择选项”不是实际的“值”而只是“标签”）

我是否可以将其添加到下面的代码中？

我很感激时间。

class ExerciseForm(forms.Form):
    def __init__(self, *args, **kwargs):
        super(ExerciseForm, self).__init__(*args, **kwargs)

        exercises = Exercise.objects.all().order_by('name')
        exercise_choices = [(exercise.youtube_id, exercise.name) for exercise in exercises]
        self.fields['exercise'] = forms.ChoiceField(choices=exercise_choices)

Answer 1

只需使用label argument，例如：

self.fields['exercise'] = forms.ChoiceField(choices=exercise_choices, label="Choose option")

或者如果您希望它在下拉列表中显示而不是实际选择，那么将其作为第一个选项插入：

exercises = Exercise.objects.all().order_by('name')
exercise_choices = [(exercise.youtube_id, exercise.name) for exercise in exercises]
exercise_choices.insert(0, (u"", u"Choose option"))
self.fields['exercise'] = forms.ChoiceField(choices=exercise_choices)

在Django ModelForm ChoiceField中显示“选择选项”标签

1 个答案: