我的站点已设置,因此没有用户名(或者说 user.username = user.email)。如果用户尝试输入数据库中已有的用户名,Django 会显示一条错误消息,但是由于我没有使用用户名进行注册,所以我不知道该怎么做。
就像默认设置一样,我不想重新加载页面以查看是否有电子邮件地址已与用户关联。我的猜测是使用 Ajax,但我不知道该怎么做。我看过其他帖子,但最近似乎没有任何内容。
我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?
模型.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
表单.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)
注册.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 %}
最佳答案
您可以覆盖 clean_<INSERT_FIELD_HERE>()
UserForm
上的方法检查这个特殊情况。它看起来像这样:
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 documentation 中阅读有关清理表单中特定字段的更多信息关于表格。
也就是说,我认为您应该考虑创建一个 custom user model而不是对待你的 User Profile
类作为 User
的包装器.
关于python - Django 1.9 检查电子邮件是否已经存在,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39600784/