[英]'a user with that username already exists' is not in Django UserCreationForm anymore?
[英]customizing Django UserCreationForm so that I create the username from lastname and firstname, not the user entering it?
我想修改我的UserCreationForm,以便當用戶請求注冊到我的網站時,他們得到的用戶名為last_name +'。'+ first_name。
我的djangoforms.py:
from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User
class SignUpForm(UserCreationForm):
first_name = forms.CharField(max_length=30, required=False)
last_name = forms.CharField(max_length=30, required=False)
email = forms.EmailField(max_length=254)
class Meta:
model = User
fields = ('first_name', 'last_name', 'email', 'password1', 'password2', )
exclude = ['username', ]
所以我從實際形式中排除了用戶名:
<h2>Sign up</h2>
<form method="post">
{% csrf_token %}
{% for field in form %}
<p>
{{ field.label_tag }}<br>
{{ field }}
{% if field.help_text %}
<small style="color: grey">{{ field.help_text }}</small>
{% endif %}
{% for error in field.errors %}
<p style="color: red">{{ error }}</p>
{% endfor %}
</p>
{% endfor %}
<button type="submit">Sign up</button>
</form>
在我的views.py中:
def signup(request):
if request.method == 'POST':
form = SignUpForm(request.POST)
我曾嘗試在此處放入form.save(),然后嘗試獲取cleaned_data first_name.last_name =用戶名,但它不起作用
if form.is_valid():
form.save()
first_name = form.cleaned_data.get('first_name')
last_name = form.cleaned_data.get('last_name')
raw_password = form.cleaned_data.get('password1')
#username = form.cleaned_data.get('username')
username = firstname+'.'+lastname
user = authenticate(username=username, password=raw_password)
user.is_active = False
user.save()
return render(request, 'registration/signedup.html', {'user': user})
else:
return render(request, 'registration/signup.html', {'form': form, 'invalid': 'Please try again.'})
else:
form = SignUpForm()
return render(request, 'registration/signup.html', {'form': form})
默認情況下,init上的UserCreationForm
檢查表單字段中是否存在User模型的USERNAME_FIELD
屬性,因此除非您已選擇另一個字段作為USERNAME_FIELD
否則您不希望排除username
屬性。
如果要使用用戶名作為USERNAME_FIELD,但又不想在前端顯示它,則可以使用{{ form.username.as_hidden }}
類的模板語法將用戶名設置為隱藏在html中。
然后,您可以覆蓋SignUpForm
的save
方法,這將使您在表單有效后進行任何后期處理。
您也不需要在字段中添加password1
和password2
,因為它們是繼承的。
如果您打算將username
屬性設置為2的組合值,則應設置first_name
和last_name
為必需,否則當用戶不輸入其first_name和last_name時,我在下面提供的代碼將不起作用。
class SignUpForm(UserCreationForm):
first_name = forms.CharField(max_length=30, required=False)
last_name = forms.CharField(max_length=30, required=False)
email = forms.EmailField(max_length=254)
class Meta:
model = User
fields = ('email', 'username', 'first_name', 'last_name')
def save(self, commit=True):
user = super(UserCreationForm, self).save(commit=False)
user.set_password(self.cleaned_data["password1"])
user.username = '{}.{}'.format(
self.cleaned_data['last_name'],
self.cleaned_data['first_name']
)
if commit:
user.save()
return user
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