python - django 在更改时提交表单

Question

您好，我正在尝试在 ChoiceField 上选择一个选项时提交表单

class ActionForm(forms.Form):
    """ Holds the options for mailbox management """
    choices = ['create new folder', 'delete', 'read', 'unread']
    action = forms.ChoiceField(choices=choices, attrs={'onchange': 'actionform.submit();'})

但现在我在尝试加载表单时遇到无效语法。我很确定 attrs={'onchange': 'actionform.submit();'}) 是问题所在，但不确定该怎么做。

Answer 1

你需要设置一个widget在场上争论并传递attrs参数:

action = forms.ChoiceField(choices=choices, 
                           widget=forms.Select(attrs={'onchange': 'actionform.submit();'}))

另外，choices 列表应该包含包含两个内容的项目:

choices = [(0, 'create new folder'), (1, 'delete'), (2, 'read'), (3, 'unread')]