我正在尝试将ContactNumber添加到我的模型中。迁移工作但是，为什么我在尝试createuperuser时遇到此错误。请有人解释一下。
我的模特：
class MyUser(AbstractBaseUser, PermissionsMixin):
DESIGNATION_CHOICES = (
('Faculty', 'Faculty'),
('Student', 'Student'),
)
STUDENT_CHOICES = (('M.Sc', 'M.Sc'),
('PhD', 'PhD'),
('Research Fellow', 'Research Fellow'),
)
LABORATORY_CHOICES = (
('Select', 'Select'),
('Bioinformatics', 'Bioinformatics Lab'),
('Marker lab', 'Marker Lab'),
('Microbiology lab', 'Microbiology Lab'),
('RNA lab', 'RNA Lab'),
('Transformation lab', 'Transformation Lab'),
)
email = models.EmailField(_('email address'), max_length=254, unique=True)
first_name = models.CharField(_('first name'), max_length=30, blank=True)
last_name = models.CharField(_('last name'), max_length=30, blank=True)
designation = models.CharField(null=True, max_length=1, default=None,
choices=DESIGNATION_CHOICES, verbose_name='Select your designation')
student_designation = models.CharField(null=True, max_length=1, default=None,
choices=STUDENT_CHOICES, verbose_name='Select your designation')
registration_id = models.CharField(_('registration id'), max_length=30, unique=True,
default='', validators=[RegexValidator(r'^\d{1,10}$')])
laboratory = models.CharField(_('laboratory'), max_length=50, choices=LABORATORY_CHOICES, default=False, blank=False)
date_of_birth = models.DateField(blank=True, default='')
permanent_address = models.TextField(max_length=500, blank=True, default='')
corresponding_address = models.TextField(max_length=500, blank=True, default='')
phone_regex = RegexValidator(regex=r'^\+?1?\d{9,10}$',
message="Phone number must be entered in the format: '+999999999'."
" Up to 10 digits allowed.")
contact_number = models.IntegerField(_('contact number'), validators=[phone_regex], unique=True, null=True, blank=True)
guardian_name = models.CharField(_('guardian name'), max_length=30, blank=True)
guardian_contact_number = models.CharField(_('guardian contact number'), max_length=10,
validators=[RegexValidator(r'^\d{1,10}$')])
is_staff = models.BooleanField(_('staff status'), default=False,
help_text=_('Designates whether the user can log into this admin site.'))
is_active = models.BooleanField(_('active'), default=False,
help_text=_('Designates whether this user should be treated as '
'active. Unselect this instead of deleting accounts.'))
date_joined = models.DateTimeField(_('date joined'), default=timezone.now)
groups = models.ManyToManyField(Group, verbose_name=_('groups'),
blank=True, help_text=_('The groups this user belongs to. A user will '
'get all permissions granted to each of '
'his/her group.'),
related_name="tmp_user_set", related_query_name="user")
user_permissions = models.ManyToManyField(Permission,
verbose_name=_('user permissions'), blank=True,
help_text=_('Specific permissions for this user.'),
related_name="tmp_user_set", related_query_name="user")
objects = manager.CustomUserManager()
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['date_of_birth']
class Meta:
verbose_name = _('user')
verbose_name_plural = _('users')
def get_absolute_url(self):
return "/users/%s/" % urlquote(self.email)
def get_full_name(self):
"""
Returns the first_name plus the last_name, with a space in between.
"""
full_name = '%s %s' % (self.first_name, self.last_name)
return full_name.strip()
def get_short_name(self):
"Returns the short name for the user."
return self.first_name
def email_user(self, subject, message, from_email=None):
"""
Sends an email to this User.
"""
send_mail(subject, message, from_email, [self.email])
class CustomUserManager(BaseUserManager):
def _create_user(self, email, password,
is_staff, is_superuser, **extra_fields):
"""
Creates and saves a User with the given email and password.
"""
now = timezone.now()
if not email:
raise ValueError('The given email must be set')
email = self.normalize_email(email)
user = self.model(email=email,
is_staff=is_staff, is_active=True,
is_superuser=is_superuser, last_login=now,
date_joined=now, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
def create_user(self, email, password=None, **extra_fields):
return self._create_user(email, password, False, False,
**extra_fields)
def create_superuser(self, email, password, **extra_fields):
return self._create_user(email, password, True, True,
**extra_fields)
追溯：
追踪（最近一次呼叫最后一次）：
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/contrib/auth/management/commands/createsuperuser.py", line 63, in execute
return super(Command, self).execute(*args, **options)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/contrib/auth/management/commands/createsuperuser.py", line 183, in handle
self.UserModel._default_manager.db_manager(database).create_superuser(**user_data)
File "/home/surajit/website/PubNet/user_profile/manager.py", line 31, in create_superuser
**extra_fields)
File "/home/surajit/website/PubNet/user_profile/manager.py", line 22, in _create_user
user.save(using=self._db)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/contrib/auth/base_user.py", line 80, in save
super(AbstractBaseUser, self).save(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/base.py", line 806, in save
force_update=force_update, update_fields=update_fields)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/base.py", line 836, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/base.py", line 922, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/base.py", line 961, in _do_insert
using=using, raw=raw)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/query.py", line 1060, in _insert
return query.get_compiler(using=using).execute_sql(return_id)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/models/sql/compiler.py", line 1099, in execute_sql
cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/backends/utils.py", line 80, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/Django-1.11-py2.7.egg/django/db/backends/sqlite3/base.py", line 328, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: NOT NULL constraint failed: user_profile_myuser.contact_number
请帮忙。