from django.contrib.auth.models import User
from django.db import models

class UserDetail(models.Model):
    user = models.ForeignKey(
        User, verbose_name="user 정보", on_delete=models.DO_NOTHING
    )
    user_email = models.IntegerField(verbose_name="user email", null=False, primary_key=True)
    
    class Meta:
        db_table = "userdetail"
        managed = True
        verbose_name = "user 상세 정보"
        verbose_name_plural = "user 상세 정보 목록"

from django.contrib import admin
from .models import Cart

class CartAdmin(admin.ModelAdmin): # admin 페이지에 표기할 column 지정
    list_display = ('<column-name>', '<column-name>')

admin.site.register(Cart, CartAdmin) # admin page에 등록

from django.contrib import admin
from .models import Cart

@admin.register(Cart) # admin page에 등록
class CartAdmin(admin.ModelAdmin): # admin 페이지에 표기할 column 지정
    list_display = ('<column-name>', '<column-name>')

class DeletedManager(models.Manager):
    use_for_related_fields = True # default manager로 사용시 관계에서 모두 활용 가능

    def deleted(self, **kwargs):
        return self.filter(is_deleted=False, **kwargs)

    def get_queryset(self):
        return super().get_queryset().filter(is_deleted=False)

class Post(models.Model):
    objects = DeletedManager()

class User(AbstractBaseUser, PermissionsMixin):
    objects = UserManager()

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['nickname', ]

    class Meta:
        ordering = ('-date_joined',)

    def __str__(self): # object 호출시 지정할 명칭
        return self.nickname

python manage.py showmigrations # migration의 상태확인
python manage.py makemigrations # migration 생성
python manage.py migrate # migration 적용
python manage.py --fake <app-name> zero # <app-name>의 migration 초기화
python manage.py --fake-initial # fake migration 생성