[Day7][Django] ManyToMany, CommonClass

from django.db import models


class Room(models.Model):
    """Room Model Definition"""

    class RoomKindChoices(models.TextChoices):
        ENTIRE_PLACE = ("entire_place", "Entire Place")
        PRIVATE_ROOM = ("private_room", "Private Room")
        SHARED_ROOM = "shared_room", "Shared Room"

    country = models.CharField(
        max_length=50,
        default="한국",
    )
    city = models.CharField(
        max_length=80,
        default="서울",
    )
    price = models.PositiveIntegerField()
    rooms = models.PositiveIntegerField()
    toilets = models.PositiveIntegerField()
    description = models.TextField()
    address = models.CharField(max_length=250)
    pet_friendly = models.BooleanField(default=True)
    kind = models.CharField(
        max_length=20,
        choices=RoomKindChoices.choices,
    )
    owner = models.ForeignKey(
        "users.User",
        on_delete=models.CASCADE,
    )
    amenities = models.ManyToManyField("rooms.Amenity")


class Amenity(models.Model):
    """Amenity Definition"""

    name = models.CharField(max_length=150)
    description = models.CharField(
        max_length=150,
        null=True,
    )

-> room과 amenity(생활 편의시설)

 

---

이것도 python manage.py startapp common 으로 만든거임

from django.db import models


class CommonModel(models.Model):
    """Common Model Definition"""

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True

class Meta에 abstract = True를 넣으면 장고는 해당 클래스를 DB 테이블로 인식하지 않음

 

해당 코드를 상속받아 중복을 줄일 수 있음

앞으로 아래의 코드에는 created_at과 updated_at이 포함되어 DB에 반영됨

from django.db import models
from common.models import CommonModel


class Room(CommonModel):
    """Room Model Definition"""

    class RoomKindChoices(models.TextChoices):
        ENTIRE_PLACE = ("entire_place", "Entire Place")
        PRIVATE_ROOM = ("private_room", "Private Room")
        SHARED_ROOM = "shared_room", "Shared Room"

    country = models.CharField(
        max_length=50,
        default="한국",
    )
    city = models.CharField(
        max_length=80,
        default="서울",
    )
    price = models.PositiveIntegerField()
    rooms = models.PositiveIntegerField()
    toilets = models.PositiveIntegerField()
    description = models.TextField()
    address = models.CharField(max_length=250)
    pet_friendly = models.BooleanField(default=True)
    kind = models.CharField(
        max_length=20,
        choices=RoomKindChoices.choices,
    )
    owner = models.ForeignKey(
        "users.User",
        on_delete=models.CASCADE,
    )
    amenities = models.ManyToManyField("rooms.Amenity")


class Amenity(CommonModel):
    """Amenity Definition"""

    name = models.CharField(max_length=150)
    description = models.CharField(
        max_length=150,
        null=True,
    )

 

---

#관리자 패널 등록
#rooms/admin.py
from django.contrib import admin
from .models import Room, Amenity


@admin.register(Room)
class RoomAdmin(admin.ModelAdmin):
    pass


@admin.register(Amenity)
class AmenityAdmin(admin.ModelAdmin):
    pass


# Register your models here.