我对django制作的postgresql数据库表感到困惑。我从psql命令获得了有关我的用户表的信息。第一个colmun，它是last_login字段。但是我没有在任何地方设置last_login字段。
表定义如下。
remoshin_devdb=# \d remosys_remoshin_user_tbl;
Table "public.remosys_remoshin_user_tbl"
Column | Type | Modifiers
-----------------+--------------------------+-----------
last_login | timestamp with time zone |
userid | character varying(64) | not null
username | character varying(128) | not null
email | character varying(254) | not null
password | character varying(128) | not null
usertype | character varying(1) | not null
is_active | character varying(1) | not null
is_admin | character varying(1) | not null
u_kana_name | character varying(128) |
u_date_of_birth | date |
u_gender | character varying(1) | not null
u_postno | character varying(7) |
u_address1 | character varying(128) |
u_address2 | character varying(128) |
u_telno | character varying(16) |
u_photo | character varying(100) |
d_photo | character varying(100) |
create_date | timestamp with time zone | not null
modify_date | timestamp with time zone | not null
d_clinic_id_id | character varying(8) |
Indexes:
"remosys_remoshin_user_tbl_pkey" PRIMARY KEY, btree (userid)
"remosys_remoshin_user_tbl_email_key" UNIQUE CONSTRAINT, btree (email)
"remosys_remoshin_user_tbl_d_clinic_id_id_65dbde14" btree (d_clinic_id_id)
"remosys_remoshin_user_tbl_d_clinic_id_id_65dbde14_like" btree (d_clinic_id_id varchar_pattern_ops)
"remosys_remoshin_user_tbl_email_4dc9031b_like" btree (email varchar_pattern_ops)
"remosys_remoshin_user_tbl_userid_e92979ce_like" btree (userid varchar_pattern_ops)
Foreign-key constraints:
"remosys_remoshin_use_d_clinic_id_id_65dbde14_fk_remosys_c" FOREIGN KEY (d_clinic_id_id) REFERENCES remosys_clinic_tbl(clinic_id) DEFERRABLE
INITIALLY DEFERRED
Referenced by:
TABLE "authtoken_token" CONSTRAINT "authtoken_token_user_id_35299eff_fk_remosys_r" FOREIGN KEY (user_id) REFERENCES remosys_remoshin_user_tbl(userid) DEFERRABLE INITIALLY DEFERRED
TABLE "django_admin_log" CONSTRAINT "django_admin_log_user_id_c564eba6_fk_remosys_r" FOREIGN KEY (user_id) REFERENCES remosys_remoshin_user_tbl(userid) DEFERRABLE INITIALLY DEFERRED
TABLE "remosys_consultation_menu_tbl" CONSTRAINT "remosys_consultation_user_email_id_4e50d1dc_fk_remosys_r" FOREIGN KEY (user_email_id) REFERENCES remosys_remoshin_user_tbl(userid) DEFERRABLE
INITIALLY DEFERRED
TABLE "remosys_consultation_tbl" CONSTRAINT "remosys_consultation_user_id_5541f93d_fk_remosys_r" FOREIGN KEY (user_id) REFERENCES remosys_remoshin_user_tbl(userid) DEFERRABLE INITIALLY DEFERRED
TABLE "remosys_refund_request_tbl" CONSTRAINT "remosys_refund_reque_user_email_id_f46e5866_fk_remosys_r" FOREIGN KEY (user_email_id) REFERENCES remosys_remoshin_user_tbl(userid) DEFERRABLE
INITIALLY DEFERRED
我的用户模型如下。我没有使用last_login字段。我不知道发生了什么。请给我一个建议。
class RemoshinUserManager(BaseUserManager):
def create_user(self, userid, username, email, password):
""" Creates and saves User with the given email and password. """
# now = timezone.now()
if not email:
raise ValueError('Users must have an email address.')
email = self.normalize_email(email),
user = self.model(
userid=userid,
username=username,
email=email,
is_active='A',
# last_login=now,
# date_joined=now,
# **extra_fields
)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, userid, username, email, password):
""" Creates and saves a superuser with the given email and password. """
user = self.create_user(userid, username, email, password)
user.is_active = 'A'
# user.is_staff = True
user.is_admin = 'A'
# user.is_superuser = True
user.save(using=self._db)
return user
class RemoshinUser(AbstractBaseUser):
userid = models.CharField('userID', max_length=64, primary_key=True)
username = models.CharField('user name', max_length=128)
email = models.EmailField('email address', unique=True)
password = models.CharField('password', max_length=128)
USERTYPE_CHOICE = (
('U', 'end user'),
('C', 'doctor'),
('A', 'administrator'),
)
usertype = models.CharField('user type', max_length=1, choices=USERTYPE_CHOICE, default='U')
# is_authenticated = models.BooleanField('authentication flag', default=True)
ACTIVETYPE_CHOICE = {
('A', 'active'),
('I', 'inactive'),
}
is_active = models.CharField('active flag', max_length=1, choices=ACTIVETYPE_CHOICE, default='A')
ADMINTYPE_CHOICE = {
('A', 'administrator'),
('N', 'normal user'),
}
is_admin = models.CharField('administrator flag', max_length=1, choices=ADMINTYPE_CHOICE, default='N')
# For Enduser
u_kana_name = models.CharField('user kana name', max_length=128, blank=True, null=True)
u_date_of_birth = models.DateField('date of birth', blank=True, null=True)
# u_gender = models.SmallIntegerField('gender', blank=True, null=True)
GENDER_CHOICES = (
('M', 'male'),
('F', 'female'),
)
u_gender = models.CharField('gender', max_length=1, choices=GENDER_CHOICES, default='M')
u_postno = models.CharField('post no', max_length=7, blank=True, null=True)
u_address1 = models.CharField('address 1', max_length=128, blank=True, null=True)
u_address2 = models.CharField('address 2', max_length=128, blank=True, null=True)
u_telno = models.CharField('tel no', max_length=16, blank=True, null=True)
u_photo = models.ImageField('user photo', upload_to='users/%Y/%m/%d', blank=True, null=True)
# For Doctor
d_clinic_id = models.ForeignKey(Clinic, blank=True, null=True)
d_photo = models.ImageField('doctor photo', blank=True, null=True)
# For administrator
# No column is defined.
create_date = models.DateTimeField('create date', default=timezone.now)
modify_date = models.DateTimeField('modify date', default=timezone.now)
objects = RemoshinUserManager()
USERNAME_FIELD = 'userid'
REQUIRED_FIELDS = ['username', 'email']
class Meta:
db_table = 'remosys_remoshin_user_tbl'
答案 0 :(得分：3)
因为您继承了AbstractBaseUser，其中包含last_login字段。
class AbstractBaseUser(models.Model):
password = models.CharField(_('password'), max_length=128)
last_login = models.DateTimeField(_('last login'), blank=True, null=True)
# .
# .
# .
答案 1 :(得分：1)
我不担心。为了您将来的方便，Django会做很多事情，像这样的领域就是其中之一。
我可以想象很多地方派上用场 - 确保在Feed页面上显示新故事，从管理页面显示客户服务等。
在任何地方都不要感到任何压力，但只要离开就不会有任何伤害。