Django自定义用户-不使用username-username唯一约束失败

Question

from django.contrib.auth.models import AbstractUser, BaseUserManager


class MyUserManager(BaseUserManager):
    def create_user(self, mob_phone, email, password=None):
        """
        Creates and saves a User with the given mobile number and password.
        """
        if not mob_phone:
            raise ValueError('Users must mobile phone number')

        user = self.model(
            mob_phone=mob_phone,
            email=email
        )

        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, mob_phone, email, password):
        """
        Creates and saves a superuser with the given email, date of
        birth and password.
        """
        user = self.create_user(
            mob_phone=mob_phone,
            email=email,
            password=password
        )
        user.is_admin = True
        user.save(using=self._db)
        return user


class CustomUser(AbstractUser):
    mob_phone = models.CharField(blank=False, max_length=10, unique=True)
    is_admin = models.BooleanField(default=False)
    objects = MyUserManager()

    # override username field as indentifier field
    USERNAME_FIELD = 'mob_phone'
    EMAIL_FIELD = 'email'

    def get_full_name(self):
        return self.mob_phone

    def get_short_name(self):
        return self.mob_phone

    def __str__(self):              # __unicode__ on Python 2
        return self.mob_phone

    def has_perm(self, perm, obj=None):
        "Does the user have a specific permission?"
        # Simplest possible answer: Yes, always
        return True

    def has_module_perms(self, app_label):
        "Does the user have permissions to view the app `app_label`?"
        # Simplest possible answer: Yes, always
        return True

    @property
    def is_staff(self):
        "Is the user a member of staff?"
        # Simplest possible answer: All admins are staff
        return self.is_admin

StackTrace：

追踪（最近的调用是最后一次）：文件“manage.py”，第22行，在execute_from_command_line(sys.argv)文件“/home/dean/.local/lib/python3.5/site-packages/django/core/management/init.py”中，第363行，在execute_from_command_line utility.execute()文件“/home/dean/.local/lib/python3.5/site-packages/django/core/management/init.py”中，django/core/management/base.py“，第283行，在run_from_argv self.execute(*args,**cmd_options)文件”/home/dean/.local/lib/python3.5/site-packages/django/contrib/auth/management/commands/create/creates/createsuperuser.py“中，第63行，在execute return super（Command,self）中，在execute return super（Command,self）中，在-packages/django/contrib/auth/management/commands/createsuperuser.py”,line 183,在句柄self.usermodel._default_manager.db_manager(database).create_superuser(**user_data)文件“/home/dean/development/urbanfox/urbanfox/user_account/models.py”中，第43行，在create_superuser password=password文件“/home/dean/development/urbanfox/urbanfox/user_account/models.py”中，在create_superuser GS,**Kwargs）文件“/home/dean/.local/lib/python3.5/site-packages/django/db/models/base.py”,第807行，在save force_update=force_update,update_fields=update_fields中）文件“/home_dean/.local/lib/python3.5/site-packages/django/db/models/base.py”,第837行，在save_base updated/base.py“，第923行，在_save_table result=self._do_insert(cls._base_manager,using,fields）中,update_pk,raw）文件“/home/dean/.local/lib/python3.5/site-packages/django/db/models/base.py”,第962行，在_do_insert using=using,raw=raw）文件“/home/dean/.local/lib/python3.5/site-packages/django/db/models/manager.py”,第85行，在manager_method返回getattr（self.get_queryset（）,name）,(*args,返回query.get_compiler(using=using).execute_sql(return_id)文件“/home/dean/.local/lib/python3.5/site-packages/django/db/models/sql/compiler.py”，第1107行，在execute_sql cursor.execute（sql,params）文件“/home/dean/.local/lib/python3.5/site-packages/django/db/models/sql/compiler.py”，第80行，在execute第65行，在execute return self.cursor.execute（sql,params）文件“/home/dean/.local/lib/python3.5/site-packages/django/db/utils.py”中，第94行在exit six.reraise(dj_exc_type,dj_exc_value,traceback）文件“/home/dean/.local/lib/python3.5/site-packages/django/utils/six.py”中，第685行；在reraise文件“/home/dean/.local/bit-packages/django/backends/sqlite3/base.py”中，第685行；在reraise文件“在execute return database.cursor.execute（self,query,params）django.db.utils.integrityError：唯一约束失败:user_account_customuser.username

Answer 1

好吧，我是个白痴。在发布这篇文章几秒钟后，我想到了一个明显的解决方案：

    username = models.CharField(max_length=40, unique=False, default='')

只需重写username字段并使其非唯一即可。

大黄鸭理论在行动....