模板中的自定义表单验证错误

Posted 2023-02-24

【中文标题】模板中的自定义表单验证错误

【英文标题】：custom form validation errors in template

【发布时间】：2020-07-25 13:40:12

【问题描述】：

如何在模板中传递自定义表单验证错误？

forms.py

    def clean_username(self):
    inputusername = self.cleaned_data['username']
    if len(inputusername) < 6:
    raise forms.ValidationError('Sorry, your username must be between 6 and 30 characters long.')
    else:
    return inputusername

views.py

def signup(request):
signup_form = CreateUserForm()
if request.method == 'POST':
signup_form = CreateUserForm(request.POST)
if signup_form.is_valid():
signup_form.save()

context = 'signup_form':signup_form
return render(request, 'formvalidationapp/signupform.html', context)

模板

<form method="post" action="% url 'signup' %">
% csrf_token %
<div class="row">
<div class="col-sm-6">
<h1>Sign Up</h1>
</div>
</div>
<div>
#i want to pass error here
</div>

【问题讨论】：

这能回答你的问题吗？ Django Forms: if not valid, show form with error message

【参考方案1】：

你可以这样试试

signup_form.username.errors

【讨论】：

兄弟在这种情况下我该怎么办？ def clean_password(self): inputpassword1 = self.cleaned_data['password1'] inputpassword2 = self.cleaned_data['password2'] if inputpassword1 != inputpassword2: raise forms.ValidationError('Password did\'t match') else: return inputpassword1 ,输入密码2