Django AttributeError: InterestsForm object has no attribute _errors

Question

我尝试使用Django表单来允许Django用户输入他们最喜欢的三个兴趣爱好。错误发生在模板呈现过程中，它显示{{form.as_ul}}。在

代码如下：

注册_兴趣.html

{% block content %}

<br><br>
<h1>Choose the 3 things that interest you most!</h1>

<form method="post" action="/reg_interests/">
    {% csrf_token %}
    {{form.as_ul}}
    <br>
    <p class="submit"><input  class="btn btn-default" type="submit" name="commit" value="Continue"></p>
</form>

{% endblock %}

视图.py

^{pr2}$

表单.py

class InterestsForm(RequestModelForm):
    interest1 = forms.ChoiceField(choices=[(1, "Option 1"), (2, "Option 2")])
    interest2 = forms.ChoiceField(choices=[(1, "Option 1"), (2, "Option 2")])
    interest3 = forms.ChoiceField(choices=[(1, "Option 1"), (2, "Option 2")])

    class Meta:
        model = Interest
        fields = ('interest1', 'interest2', 'interest3')

    def __init__(self, request):
        self.user = request.user

    def save(self, commit=True):
        interest = super(InterestsForm, self).save(commit=False)
        interest.user = self.user
        interest.interest1 = self.cleaned_data['interest1']
        interest.interest2 = self.cleaned_data['interest2']
        interest.interest3 = self.cleaned_data['interest3']

        if commit:
            interest.save()

        return interest

我认为表单有问题，但我不知道如何或为什么需要定义_errors。Django自己不应该处理这个问题吗？如果不是，我如何定义_errors？在

Answer 1

这段代码根本不可能工作，因为您重写了表单的__init__方法，以便a）您只接受request参数，而不接受表单所期望的任何其他内容，例如data或{}-并且b）您永远不会调用超类init方法来初始化表单代码其余部分所期望的内容。你需要保留签名然后打电话给超级。在

def __init__(self, *args, **kwargs):
     request = kwargs.pop('request')
     self.user = request.user
     super(InterestsForm, self).__init__(*args, **kwargs)