Django.db.utils.IntegrityError: ограничение NOT NULL не выполнено: account_account.phone_number ⇐ Python

[Anonymous]

Когда я попытался отправить регистрационную форму, заполнив необходимые записи, произошла следующая ошибка. Пожалуйста, помогите мне устранить вышеуказанную ошибку.
IntegrityError в /accounts/register/
Не удалось ограничить ограничение NOT NULL: account_account.phone_number
Views.py приложения «Аккаунты»

def register(request):
if request.method=='POST':
form = RegistrationForm(request.POST)
if form.is_valid():
first_name= form.cleaned_data['first_name']
last_name = form.cleaned_data['last_name']
phone_number = form.cleaned_data['phone_number']
email = form.cleaned_data['email']
password = form.cleaned_data['password']

username=email.split("@")[0]

user = Account.objects.create_user(first_name = first_name, last_name = last_name, email = email, username = username, password = password)
user.phone_number = phone_number
user.save()

else:
form = RegistrationForm()
context = {
'form':form,
}
return render(request, 'accounts/register.html', context)


models.py приложения «Аккаунты»

class MyAccountManager(BaseUserManager):
def create_user(self, first_name, last_name, username, email, password=None):
if not email:
raise ValueError('user must have an email address ')
if not username:
raise ValueError('user must have an email username ')

user = self.model(
email = self.normalize_email(email),
username = username,
first_name = first_name,
last_name = last_name,
)
user.set_password(password)
user.save(using=self._db)
return user

def create_superuser(self, first_name, last_name, email, username, password):
user = self.create_user(
email= self.normalize_email(email),
username = username,
password = password,
first_name = first_name,
last_name = last_name,
)

user.is_admin = True
user.is_active = True
user.is_staff = True
user.is_superadmin = True
user.save(using=self._db)

return user

class Account(AbstractBaseUser):
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
username = models.CharField(max_length=50, unique=True)
email = models.EmailField(max_length=100, unique=True)
phone_number= models.IntegerField()

Register.html


{%csrf_token %}


First name
{{form.first_name}}


Last name
{{form.last_name}}




Email Address
{{form.email}}


Phone Number
{{form.phone_number}}




Create password
{{form.password}}


Repeat password
{{form.confirm_password}}



Register




forms.py
class RegistrationForm(forms.ModelForm):
password = forms.CharField(widget=forms.PasswordInput(attrs={
'placeholder':'Enter Password',
'class':'form-control',

}))
confirm_password = forms.CharField(widget=forms.PasswordInput(attrs={
'placeholder':'Confirm Password'}))
class Meta:
model = Account
fields = ['first_name', 'last_name', 'phone_number', 'email', 'password']
def __init__(self, *args, **kwargs):
super(RegistrationForm, self).__init__(*args, **kwargs)
self.fields['first_name'].widget.attrs['placeholder'] = 'Enter First Name'
self.fields['last_name'].widget.attrs['placeholder'] = 'Enter Last Name'
self.fields['phone_number'].widget.attrs['placeholder'] = 'Enter phone Number'
self.fields['email'].widget.attrs['placeholder'] = 'Enter Email Address'

for field in self.fields:
self.fields[field].widget.attrs['class'] = 'form-control


Подробнее здесь: https://stackoverflow.com/questions/793 ... ccount-pho