[PYTHON] Here's a brief summary of how to get started with Django

Here's a brief summary of how to get started with Django

I've made dozens of products with Django so far, The procedure for actually starting development is almost the same, so I've summarized it briefly this time.

** Development start flow **

1. Create a folder
2. Create a virtual environment
3. Install Django
4. Create a project
5. Register the application
6. Make basic settings in settings.py
7. Perform basic implementation.

It is a flow like.

Create a folder

First, create a project directory from the terminal.

.sh

mkdir sample_project
cd sample_project

Create a virtual environment

Next, create a virtual environment.

.sh

virtualenv myvenv
source myvenv/bin/activate

Install Django

Install Django. Since we use postgreSQL, we also install psycopg2-binary. After that, install pillow, widget_tweaks, and environ.

.sh

pip install django pillow psycopg2-binary django-widget-tweaks, django-environ

Create a project

Create a project.

.sh

django-admin startproject sample_project
cd sample_project

Register the application

Next, create a DB and then register the application (app).

.sh

python manage.py migrate
python manage.py startapp sample_app

Make basic settings in settings.py.

.settings.py

"""
Django settings for app project.

Generated by 'django-admin startproject' using Django 3.1.1.

For more information on this file, see
https://docs.djangoproject.com/en/3.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.1/ref/settings/
"""

from pathlib import Path
import os
import environ

env = environ.Env(DEBUG=(bool, False),)
environ.Env.read_env('.env')

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
PROJECT_NAME = os.path.basename(BASE_DIR)


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = env('SECRET_KEY')

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True


ALLOWED_HOSTS = ['*']

# Application definition

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

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'sample_project.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': ['templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'sample_project.wsgi.application'

# https://docs.djangoproject.com/en/3.1/ref/settings/#databases



DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

# Password validation
# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/3.1/topics/i18n/

LANGUAGE_CODE = 'ja'

TIME_ZONE = 'Asia/Tokyo'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images) and Media files
# https://docs.djangoproject.com/en/3.1/howto/static-files/

STATIC_URL = '/static/'
# STATIC_ROOT = os.path.join(BASE_DIR, 'static/')
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, 'static/')
]

MEDIA_URL = '/media/'
MEDIA_ROOT = 'media/'

After that, all you have to do is create a static or templates folder in the directory directly under the project.

.sh

mkdir templates
mkdir static

The project creation is also summarized in Just Python Document.

that's all.