我想用Django的form实现一个简单的用户注册功能,目前完成的界面如下:
我想完善的功能是当用户输入内容有误时,点击注册之后会在相应字段后面出现一个错误提示,就像Segmentfault的登录一样,密码错误下面会有简单的提示,如下:
我的部分代码如下,
forms.py
class SignupForm(forms.Form): username = forms.CahrField( label=_("username"), max_length=30, ) email = forms.EmailField(label=_('email'),) password_1 = forms.CharField( label=_("password"), widget=forms.PasswordInput, ) password_2 = forms.CharField( label=_("password_confirmed"), widget=forms.PasswordInput, ) def clean_password_2(self): password_1 = self.cleaned_data.get("password_1") password_2 = self.cleaned_data.get("password_2") if password_1 and password_2 and password_1 != password_2: raise forms.ValidationError(_('password confirm failed')) return password_2
signup.html
views.py
def signup_post(request): if request.method == 'POST': signup_form = forms.SignupForm(request.POST) if signup_form.is_valid(): signup_info = signup_form.cleaned_data username = signup_info['username'] email = signup_info['email'] password = signup_info['password_1'] user = User.objects.create_user( username=username, email=email, password=password) user.save() # 重定向到首页(暂时没写) else: # 估计是这里的问题,但不知道怎么改正 return redirect(reverse("accounts:signup")) else: signup_form = forms.SignupForm() return render(reverse("accounts:signup"), {'form': signup_form})
目前只是想简单验证两次输入密码是否一致,参考文档写了 clean_ 函数,但是没有成功。我猜测是views 中 signup_form.is_valid()
失败之后返回页面时需要带上form,但是不知道怎么做。
已经读了Django文档中Form部分的内容,但是仍旧找不到解决方法。
lz可以参考这篇文章,变通实现这个功能
http://muilpin.blog.163.com/blog/static/165382936201221910158809/
ajax提交到后台,通过获取form.name.errors来确定name字段是否错误
class SignupForm(forms.Form):
email = forms.EmailField(label=u"电子邮箱") name = forms.CharField(label=u"姓名",max_length=50) password = forms.CharField(label=u"密码", max_length=30, widget=forms.PasswordInput) password2 = forms.CharField(label=u"确认密码", max_length=30, widget=forms.PasswordInput) def clean(self): cleaned_data = super(SignupForm, self).clean() password = cleaned_data.get("password") password2 = cleaned_data.get("password2") if password != password2: raise forms.ValidationError(u"两次密码必须一致")
刚好也遇到了这样的问题,看了下官方的文档Cleaning and validating fields that depend on each other
希望我的回答能给以后遇到这样问题的同学提供帮助
已解决。
可以看
django form field validation and error display 和 django TemplateDoesNotExist