Django user registration with phone and password - django

Question

i am creating custom user model in django using abstract base user class, i want to create user with only two fields "phone and password " and name being the optional field , which i have set in my models .py that blank =true. i have created a rest api for user registration using my custom user model, but every time i try to create new user with phone and password it gives me below error:-
IntegrityError at /api/users/
UNIQUE constraint failed: accounts_user.name
Request Method: POST
Request URL: http://127.0.0.1:8000/api/users/
Django Version: 3.0.1
Exception Type: IntegrityError
Exception Value:
UNIQUE constraint failed: accounts_user.name
Exception Location: /usr/local/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py in execute, line 396
Python Executable: /usr/local/opt/python/bin/python3.7
Python Version: 3.7.6
Python Path:
['/Users/raghav/milkbasketdemo/milkbasketdemo',
'/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python37.zip',
'/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7',
'/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload',
'/usr/local/lib/python3.7/site-packages']
Please help where i am going wrong , i have searched and tried changing code number of times but nothing is working for me.
please find the below code of models.py
class UserManager(BaseUserManager):
def create_user(self,phone, password=None,is_staff=False,is_admin=False,is_active=True):
if phone is None:
raise TypeError('Users must have a phonenumber.')
user = self.model(phone=phone)
user.set_password(password)
user.staff=is_staff
user.admin=is_admin
user.active=is_active
user.save(using=self._db)
return user
def create_staffuser(self, phone, password):
"""
Creates and saves a staff user with the given email and password.
"""
user = self.create_user(
phone,
password=password,
is_staff=True
)
# user.staff = True
user.save(using=self._db)
return users
def create_superuser(self, phone, password):
"""
Creates and saves a superuser with the given email and password.
"""
user = self.create_user(
phone=phone,
password=password,
is_staff=True,
is_admin=True
)
#user.staff = True
#user.admin = True
#user.active=True
user.save(using=self._db)
return user
class User(AbstractBaseUser,PermissionsMixin):
phone_regex=RegexValidator(regex = r'^[6-9]\d{9}$',message='please enter the correct phonenumber')
#name_regex=RegexValidator(regex=r'/^[A-Za-z]+$/',message='Please enter the correct name')
phone=models.CharField(validators=[phone_regex],max_length=15,unique=True)
name=models.CharField(max_length=15,unique=True,blank=True)
date_joined=models.DateTimeField(verbose_name='date joined',auto_now_add=True)
last_login=models.DateTimeField(verbose_name='last login',auto_now=True)
active = models.BooleanField(default=True)
staff = models.BooleanField(default=False) # a admin user; non super-user
admin = models.BooleanField(default=False)
first_login=models.BooleanField(default=False)
USERNAME_FIELD='phone'
REQUIRED_FIELDS = []
objects = UserManager()
def __str__(self):
return self.phone
#property
def token(self):
return self._generate_jwt_token()
def get_full_name(self):
return self.name
def has_perm(self, perm, obj=None):
return True
def has_module_perms(self, app_label):
return True
Below is code of serializer.py
class RegistrationSerializer(serializers.ModelSerializer):
password = serializers.CharField(
max_length=128,
min_length=8,
write_only=True
)
token = serializers.CharField(max_length=255, read_only=True)
class Meta:
fields = ['phone', 'password']
def create(self, validated_data):
return User.objects.create_user(**validated_data)