【发布时间】：2021-01-07 20:27:55
【问题描述】：
我是 Django 新手，请原谅一些错误。 我正在尝试为电子邮件创建验证系统并将这些错误（如果有）打印到模板中。 为了清楚起见，我能够创建新用户并重定向到登录页面，我只是无法显示错误消息。 如果这是一个微不足道的问题，我深表歉意，但我有点坚持了 2 天。 我在youtube 上尝试过这个视频：我尝试关注这个post，但没有成功。
forms.py
from django.forms import ModelForm
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User
from django import forms
# This class will overwrite origginal UserCreationForm0
class CreateUserForm(UserCreationForm):
email = forms.EmailField(required = True)
class Meta:
model = User
# this will add email to our register_form
fields = [
'username',
'email',
'password1',
'password2'
]
def clean(self):
cleaned_data = super(CreateUserForm, self).clean()
email = self.cleaned_data.get('email')
if User.objects.filter(email=email).exists():
raise forms.ValidationError('User with same email already exists')
return cleaned_data
views.py
from django.shortcuts import render, redirect
from .forms import CreateUserForm
from django.contrib.auth import login, authenticate, logout
from django.contrib.auth.forms import AuthenticationForm
from django.contrib import messages
# Create your views here.
def registration_page(request):
if request.user.is_authenticated:
return redirect('')
else:
form = CreateUserForm()
if request.method == 'POST':
form = CreateUserForm(request.POST)
if form.is_valid():
form.save()
messages.success(request, 'User has been successefly registered, Please Log In!')
return redirect('accounts:login')
else:
CreateUserForm()
context = {
'form': form
}
return render(request, 'accounts/register.html', context)
注册.html
<form class="form-horizontal" method="post">
{% csrf_token %}
<div class="form-group">
<label for="email" class="cols-sm-2 control-label">Your Email</label>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-envelope fa" aria-hidden="true"></i></span>
{{form.email}}
</div>
</div>
</div>
<div class="form-group">
<label for="username" class="cols-sm-2 control-label">Username</label>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-users fa" aria-hidden="true"></i></span>
{{form.username}}
</div>
</div>
</div>
<div class="form-group">
<label for="password" class="cols-sm-2 control-label">Password</label>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-lock fa-lg" aria-hidden="true"></i></span>
{{form.password1}}
</div>
</div>
</div>
<div class="form-group">
<label for="confirm" class="cols-sm-2 control-label">Confirm Password</label>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-lock fa-lg" aria-hidden="true"></i></span>
{{form.password2}}
</div>
</div>
</div>
<p>{{form.email.errors}}</p>
<p>{{form.password.errors}}</p>
<div class="form-group ">
<input type="submit" value="Register" class="btn btn-primary btn-lg btn-block login-button">
</div>
<div class="login-register">
<a href="{% url 'accounts:login' %}">Login</a>
</div>
</form>
【问题讨论】：
标签： python django forms validationerror