【发布时间】：2021-08-26 14:52:27
【问题描述】：
我正在尝试在我的模板 (register.html) 中显示 验证错误，但它没有显示。这段代码有什么问题？
还有一个问题“我如何显示电子邮件已经存在于这种表单中”
我不知道如何显示“电子邮件已存在”。
代码在这里。
forms.py
from django.contrib.auth.models import User
from django import forms
from .models import *
from django.utils.translation import gettext as _
class RegisterForm(forms.ModelForm):
username = forms.CharField(widget=forms.TextInput())
password = forms.CharField(widget=forms.PasswordInput())
email = forms.CharField(widget=forms.EmailInput())
class Meta:
model = Customer
fields =["full_name", "username", "email", "password"]
def clean_username(self):
uname = self.cleaned_data.get('username')
if User.objects.filter(username = uname).exists():
raise forms.ValidationError(_('Customer with this username already exists'), code='invalid')
return uname
def __init__(self, *args, **kwargs):
super(RegisterForm, self).__init__(*args, **kwargs) # Call to ModelForm constructor
self.fields['username'].widget.attrs['style'] = 'width:500px; height:40px;'
self.fields['password'].widget.attrs['style'] = 'width:500px; height:40px;'
self.fields['email'].widget.attrs['style'] = 'width:500px; height:40px;'
self.fields['full_name'].widget.attrs['style'] = 'width:500px; height:40px;'
我无法在上述代码Customer with this username already exists上显示错误消息
views.py
from django.shortcuts import render, redirect
from django.views.generic import CreateView, View, FormView
from django.contrib.auth import authenticate, login, logout
from django.urls import reverse_lazy
from .forms import *
# Create your views here.
class customerRegister(CreateView):
template_name = "register.html"
form_class = RegisterForm
success_url = reverse_lazy("main_app:base")
def form_valid(self, form):
username = form.cleaned_data.get("username")
email = form.cleaned_data.get("email")
password = form.cleaned_data.get("password")
user = User.objects.create_user(username, email, password)
form.instance.user = user
login(self.request, user)
return super().form_valid(form)
def get_success_url(self):
if "next" in self.request.GET:
next_url = self.request.GET.get("next")
return next_url
else:
return self.success_url
register.html
<body style="background-color: #95a5a6">
{% if error %}
<div class="alert alert-dismissible alert-danger">
<button type="button" class="btn-close" data-bs-dismiss="alert"></button>
<strong>Oh snap!</strong>{{form.non_field_errors}}
</div>
{% endif %}
<div class="container-register mx-auto">
<form action="{% url 'account:register' %}" method="post">
{% csrf_token %}
<fieldset>
<h2 class="text-center" style="margin-top: 50px">Register</h2>
<div class="form-group">
<label class="col-form-label mt-4" for="inputDefault">Full Name*</label><br>
{{form.full_name}}<br>
</div>
<div class="form-group">
<label class="col-form-label mt-4" for="inputDefault">Username*</label><br>
{{form.username}}<br>
</div>
<div class="form-group">
<label for="exampleInputEmail1" class="form-label mt-4 ">Email address*</label><br>
{{form.email}}<br>
<small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
</div>
<div class="form-group">
<label for="exampleInputPassword1" class="form-label mt-4">Password*</label><br>
{{form.password}}<br>
</div>
<br/>
<div class="text-center">
<button type="submit" class="btn btn-lg btn-primary">Register</button>
</div>
</fieldset>
</form>
<hr>
<h5 class="text-center" style="margin-top: 50px">Already Registered?<a class="nav-link" href="{% url 'account:login'%}">Log in</a></h5>
</div>
</body>
【问题讨论】：
-
您好，@AbdulAzizBarkat 确实，您看到我的问题并尝试分析问题或只是参考答案。我已经搜索了所有答案。并且您提到的问题对我没有帮助……并且在我的上述问题中还提出了一个问题。如何添加电子邮件验证。您只需关闭答案即可。
-
我已阅读您的问题，该问题确实向您展示了如何呈现表单错误。下一个“在我的上述问题中也提出了一个问题”您不应该在一篇帖子中提出多个问题，它应该是一个问题每个帖子。
-
您好@AbdulAzizBarkat，以上参考答案对我没有帮助。我尝试了所有的事情，但它就像转储不显示错误消息。上面这个问题还有一个问题是。“如何在同一代码中添加电子邮件验证代码”
-
你好@AbdulAzizBarkat 我将编辑代码，但你正在关闭答案不是解决方案
标签： django django-models django-views django-forms django-templates