Создание интернет-магазина. Часть 2.

Создание Django приложения.

django-admin.py startproject prj
cd prj
./manage.py migrate

Создание приложения shop

./manage.py startapp shop

Добавим приложение в проект.

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'shop'
]

Создадим модель (shop/models.py).

from django.db import models

class Category(models.Model):
    name = models.CharField(max_length=250)
    name_slug = models.CharField(max_length=250)


class Subcategory(models.Model):
    name = models.CharField(max_length=250)
    name_slug = models.CharField(max_length=250)
    category = models.ForeignKey(Category, on_delete=models.SET_NULL,  null=True)

class Good(models.Model):
    name = models.CharField(max_length=250)
    name_slug = models.CharField(max_length=250)
    desc = models.TextField()
    subcategory = models.ForeignKey(Subcategory, on_delete=models.SET_NULL,  null=True)

class Image(models.Model):
    good = models.ForeignKey(Good, on_delete=models.SET_NULL, null=True)
    image = models.ImageField()

Опишем классы админ интерфейса и привяжем их к модели (shop/admin.py).

from django.contrib import admin
from .models import *


class CategoryAdmin(admin.ModelAdmin):
    pass

class SubcategoryAdmin(admin.ModelAdmin):
    pass

class GoodAdmin(admin.ModelAdmin):
    pass

class ImageAdmin(admin.ModelAdmin):
    pass

admin.site.register(Category, CategoryAdmin)
admin.site.register(Subcategory,SubcategoryAdmin)
admin.site.register(Good, GoodAdmin)
admin.site.register(Image, ImageAdmin)

Создадим новую команду импорта данных (shop/management/commands/import.py).

from django.core.management.base import BaseCommand, CommandError
from shop.models import *

class Command(BaseCommand):
    def handle(self, *args, **options):
        print('Importing data')

** Не забываем создавать файлы ini.py в новых каталогах management и commands **