Question

当提交的表单有效时没有问题，但是当提交的表单无效时（例如，在我们的情况下它是空白的）那么is_valid（）抛出此异常：（据我所知is_valid（）在这种情况下必须返回false）

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/home/sign-up

Django Version: 1.6
Python Version: 3.3.2
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'employer',
 'employee',
 'home',
 'admin',
 'django.contrib.admin')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "C:\Python33\lib\site-packages\django\core\handlers\base.py" in get_response
  114.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Sina-PC\PycharmProjects\ـ\home\views.py" in sign_up
  32.         if  myForm.is_valid():
File "C:\Python33\lib\site-packages\django\forms\forms.py" in is_valid
  129.         return self.is_bound and not bool(self.errors)
File "C:\Python33\lib\site-packages\django\forms\forms.py" in errors
  121.             self.full_clean()
File "C:\Python33\lib\site-packages\django\forms\forms.py" in full_clean
  273.         self._clean_fields()
File "C:\Python33\lib\site-packages\django\forms\forms.py" in _clean_fields
  288.                     value = field.clean(value)
File "C:\Python33\lib\site-packages\django\forms\fields.py" in clean
  149.         self.validate(value)
File "C:\Python33\lib\site-packages\django\forms\fields.py" in validate
  125.             raise ValidationError(self.error_messages['required'], code='required')

Exception Type: TypeError at /home/sign-up
Exception Value: string indices must be integers

我的表格是：

 __author__ = 'Sina-PC'

 from django import  forms

 class SignupForm(forms.Form):
     username=forms.CharField(max_length=10,widget=forms.TextInput);
     username.label='نام کاربری';
     username.required=True;
     username.error_messages="kkkkkk";

我的观点功能是：

    def sign_up(request):

        if (request.method=="POST"):
            myForm=SignupForm(request.POST);
            if  myForm.is_valid():
                print("do");
                return  render(request,'home/signup-success.html',{'form':myForm});

        myForm=SignupForm();
        return  render(request,'home/sign-up.html',{'form':myForm});

我的模板是：

 <form method="POST" action="{% url 'sign-up' %}">
                        {% csrf_token %}
                        <div id="form1" >

                        {{ form.as_p }}

                         </div>
                            <button type="submit" class="btn btn-primary pull-left " style="font-family: tahoma" id="registerBt"   >
مرحله بعد
                            </button>
                        <div class="clearfix"></div>
                    </form>

编辑：完全跟踪补充。

Answer 1

问题在于这一行：username.error_messages="kkkkkk"。 error_messages需要dict，如下所示：

username.error_messages = {'required': 'username is required'}

当django 1.6中的简单表单无效时，is_valid（）抛出异常

1 个答案: