Django 1.9 检查电子邮件是否已经存在 [英] Django 1.9 check if email already exists
问题描述
我的网站设置为没有用户名(或者更确切地说是 user.username = user.email).如果用户尝试输入数据库中已有的用户名,Django 会显示错误消息,但是由于我没有使用用户名进行注册,因此我不知道如何执行此操作.
My site is set up so there is no username (or rather user.username = user.email). Django has an error message if a user tries to input a username that is already in the database, however since I'm not using a username for registration I can't figure out how to do this.
就像默认设置一样,我不想重新加载页面以查看是否有已与用户关联的电子邮件地址.我的猜测是使用 Ajax,但我不知道如何去做.我看过其他帖子,但最近似乎没有任何内容.
Just like the default settings already is, I don't want to reload the page to find out if there is an email address already associated with a user. My guess is to use Ajax, but I can't figure out how to do it. Ive looked at other posts, but there doesn't seem to be anything recent.
如何检查电子邮件地址是否已存在,如果存在,则给出错误消息,让用户输入新的电子邮件地址?
How can I check to see if an email address already exists, and if so, give an error message for the user to input a new email address?
models.py:
class MyUsers(models.Model):
user = models.OneToOneField(User)
first_name = models.CharField(max_length=100, blank=True)
last_name = models.CharField(max_length=100, blank=True)
email = models.EmailField(max_length=100, blank=True, unique=True)
company = models.CharField(max_length=100, blank=True, null=True)
website = models.URLField(max_length=100, blank=True, null=True)
phone_number = models.CharField(max_length=100, blank=True, null=True)
def __str__(self):
return self.user.username
forms.py:
class UserForm(forms.ModelForm):
class Meta:
model = User
fields = ('email',)
class UserProfileForm(forms.ModelForm):
class Meta:
model = UserProfile
fields = ('first_name', 'last_name', 'company', 'website', 'phone_number')
views.py:
def index(request):
registered = False
if request.method == 'POST':
user_form = UserForm(data=request.POST)
profile_form = UserProfileForm(data=request.POST)
if user_form.is_valid() and profile_form.is_valid():
user = user_form.save()
user.set_password(user.password)
user.password = ""
user.username = user.email
user.save()
profile = profile_form.save(commit=False)
profile.user = user
profile.email = user.email
profile.save()
user.first_name = profile.first_name
user.last_name = profile.last_name
user.save()
registered = True
return HttpResponseRedirect(reverse('registration'))
else:
print user_form.errors, profile_form.errors
else:
user_form = UserForm()
profile_form = UserProfileForm1()
context = {'user_form': user_form, 'profile_form': profile_form, 'registered': registered}
return render(request, 'mysite/register.html', context)
register.html:
register.html:
{% extends 'mysite/base.html' %}
{% load staticfiles %}
{% block title_block %}
Register
{% endblock %}
{% block head_block %}
{% endblock %}
{% block body_block %}
<form id="user_form" method="post" action="/mysite/" enctype="multipart/form-data">
{% csrf_token %}
{{ user_form.as_p }}
{{ profile_form.as_p }}
<input type="submit" name="submit" value="Register" />
</form>
{% endblock %}
推荐答案
您可以覆盖 UserForm
上的 clean_
方法来检查这个特定的案件.它看起来像这样:
You can override the clean_<INSERT_FIELD_HERE>()
method on the UserForm
to check against this particular case. It'd look something like this:
forms.py:
class UserForm(forms.ModelForm):
class Meta:
model = User
fields = ('email',)
def clean_email(self):
# Get the email
email = self.cleaned_data.get('email')
# Check to see if any users already exist with this email as a username.
try:
match = User.objects.get(email=email)
except User.DoesNotExist:
# Unable to find a user, this is fine
return email
# A user was found with this as a username, raise an error.
raise forms.ValidationError('This email address is already in use.')
class UserProfileForm(forms.ModelForm):
class Meta:
model = UserProfile
fields = ('first_name', 'last_name', 'company', 'website', 'phone_number')
您可以在 Django 文档 关于表单.
You can read more about cleaning specific fields in a form in the Django documentation about forms.
也就是说,我认为您应该考虑创建一个 自定义用户模型,而不是将您的 User Profile
类视为 User
的包装器.
That said, I think you should look into creating a custom user model instead of treating your User Profile
class as a wrapper for User
.
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