django에서 사용자 정의 명령을 만드는 방법

import os
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'commands.settings')

import django
django.setup()

from django.contrib.auth import get_user_model
from posts.models import Category, Post

User = get_user_model()

def select_category():
    # retrieve categories. (You can create some examples from the django admin)
    categories = Category.objects.all().order_by('created_at')
    print('Please select a category for your post: ')
    for category in categories:
        print(f'{category.id}: {category}')
    category_id = input()
    category = Category.objects.get(id=category_id)
    return category


def select_author():
    # retrieve all users
    users = User.objects.all()
    print('Please select an author for your post: ')
    for user in users:
        print(f'{user.id}: {user}')
    user_id = input()
    user = User.objects.get(id=user_id)
    return user



def create_post():
    title = input("Title of your post: ")
    content = input("Long post content: ")
    category = select_category()
    author = select_author()
    Post(**locals()).save()
    print('Post created successfully!')

if __name__ == "__main__":
    create_post()

from django.core.management.base import BaseCommand, CommandError
from posts.models import Category, Post

class Command(BaseCommand):
    help = 'Marks the specified blog post as published.'

    # allows for command line args
    def add_arguments(self, parser):
        parser.add_argument('post_id', type=int)

    def handle(self, *args, **options):
        try:
            post = Post.objects.get(id=options['post_id'])
        except Post.DoesNotExist:
            raise CommandError(f'Post with id {options["post_id"]} does not exist')
        if post.published:
            self.stdout.write(self.style.ERROR(f'Post: {post.title} was already published'))
        else:
            post.published = True
            post.save()
            self.stdout.write(self.style.SUCCESS(f'Post: {post.title} successfully published'))

from django.core.management.base import BaseCommand, CommandError
from posts.models import Category, Post

class Command(BaseCommand):
    help = 'Edits the specified blog post.'

    def add_arguments(self, parser):
        parser.add_argument('post_id', type=int)

        # optional arguments
        parser.add_argument('-t', '--title',type=str, help='Indicate new name of the blog post.')
        parser.add_argument('-c', '--content',type=str, help='Indicate new blog post content.')

    def handle(self, *args, **options):
        title = options['title']
        content = options['content']
        try:
            post = Post.objects.get(id=options['post_id'])
        except Post.DoesNotExist:
            raise CommandError(f'Post with id {options["post_id"]} does not exist')

        if title or content:
            if title:
                old_title = post.title
                post.title = title
                post.save()
                self.stdout.write(self.style.SUCCESS(f'Post: {old_title} has been update with a new title, {post.title}'))
            if content:
                post.content = content
                post.save()
                self.stdout.write(self.style.SUCCESS('Post: has been update with new text content.'))
        else:
            self.stdout.write(self.style.NOTICE('Post content remains the same as no arguments were given.'))