使用jQuery-Ajax进行表单验证

Question

说到正常的POST,GET方法,我通常都知道自己的方式.

但是,在我的代码中实现ajax-jQuery以进行表单验证是我学习的重要一步.

我有一个包含3个字段的表单:电子邮件,确认电子邮件和密码.

我正在使用此表单注册新用户.

form.py

class UserField(forms.EmailField):
    def clean(self, value):
        super(UserField, self).clean(value)
        try:
            User.objects.get(username=value)
            raise forms.ValidationError("email already taken.")
        except User.DoesNotExist:
            return value

class RegistrationForm(forms.Form):

    email = UserField(max_length=30, required = True)
    conf_email = UserField(label="Confirm Email", max_length=30, required = True)
    password = forms.CharField(label="Enter New Password", widget=forms.PasswordInput(), required=True)

    def clean(self):
        if 'email' in self.cleaned_data and 'conf_email' in self.cleaned_data:
            if self.cleaned_data['email'] != self.cleaned_data['conf_email']:
                self._errors['email'] = [u'']
                self._errors['conf_email'] = [u'Email must match.']
        return self.cleaned_data

Html代码

<form method="post">
    {{ register_form.as_p() }}
    <input name = "Register" type="submit" value="Register" />
</form>

我希望在我按下提交按钮之前,通过使用ajax-jQuery方法检查表单是否有效并显示任何相关的错误消息.但是,我不知道如何开始/做这件事.

Answer 1

您可能想查看http://github.com/alex/django-ajax-validation

这里和这里有一些文档