1. creating virtual environment

   • python -m venv virtualEnvironmentName
   
   Note: Go to desired directory first

2. change directory to virtualenvironment

   • after creating virtual environment change directory to virtualEnvironmentName
   • cd virtualEnvironmentName/

3. activating virtual environment

   • source Scripts/activate

4. check pip package list

   • pip list

5. version check django and install django

   • django-admin --version
   • pip install django
   • django-admin --version

6. create a project

   • django-admin startproject projectName

7. change directory to projectName

   • after creating django project change directory to projectName
   • cd projectName/

8. start the server

   • python manage.py runserver

9. create an app

   • django-admin startapp appName

10. for import problem

    • Type pip show Django in terminal
    • Go to the path of intallation mentioned there
    • It will be inside "lib" by default..go back to scripts
    • Inside the scripts , there will be python.exe app
    • Choose this as your interpreter

11. Django Rest Framework

    • Installations
      pip install djangorestframework
pip install markdown
pip install django-filter
    • In Settings.py
      Add 'rest_framework' to your INSTALLED_APPS.
      
    • Installed Packages pip freeze > requirements.txt
    • add gitignore file

12. Create migrations

    • python manage.py makemigrations

13. Run migration

    • python manage.py migrate

14. Create superuser for authenficiation/admin panel

    • python manage.py createsuperuser

15. psycopg2 installation for PostgreSql

    • pip install psycopg2
    • DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'your_db_name',
'USER': 'postgres',
'PASSWORD': 'your_db_password',
'HOST': 'localhost',
'PORT': '5432',
}
}


16. django-environ package installation

    • pip install django-environ
    • import environ
env = environ.Env()
environ.Env.read_env()
...
# Your secret key
SECRET_KEY = env("SECRET_KEY")
...
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': env("DB_NAME"),
'USER': env("DB_USER"),
'PASSWORD': env("DB_PASSWORD"),
'HOST': env("DB_HOST"),
'PORT': env("DB_PORT"),
}
}


17. Django Media Files

    • settings.py
      MEDIA_URL='/media/'
MEDIA_ROOT = BASE_DIR /'media'

    • urls.py
      from django.conf import settings
from django.conf.urls.static import static
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

18. Deleting Data And Database Manually

    • Delete all migrations files Migrations are Django's method of propagating changes made in the model (adding a field, deleting a model, etc.) into our database. Django's migration can be reset by deleting all migration files such as 0001_inital, 0002_delete_song, 0003_delete_album, etc. except the init.py files in each project app directory, then dropping the database and creating migration again.

    • Delete db.sqlite3 file After clearing the migration files, our next step is to delete the db.sqlite3 file. SQLite is an embedded database engine, so deleting a database requires deleting the file from the machine. db.sqlite3 is a database file that will keep all of the data we generated in our project.

    • Make new migrations files
      python manage.py makemigrations

19. Rest Framework Token Model & Django Filter Backend

    • In Settings.py
      Add 'rest_framework.authtoken' to your INSTALLED_APPS.
    • Django Filter Installation
      pip install django-filter
    • In Settings.py
      Add 'django_filters', to your INSTALLED_APPS.
20. • Installed Packages pip freeze > requirements.txt

21. Steps to allow CORS in your Django Project –

    • Install django-cors-headers using PIP: pip install django-cors-headers
    • Add corsheaders to installed applications section in the settings.py file:
      INSTALLED_APPS = [
...
'corsheaders',
...
]
    • Add corsheaders.middleware.CorsMiddleware to middleware section in settings.py file: MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
...
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'corsheaders.middleware.CorsMiddleware',
]