shyamsrinivasan/django-learn

Repo for Django

Steps for initiliazing a Django app

1. Test if Django is installed python -m django --version
2. Create a Django project django-admin startproject myapp The above step creates the root myapp directory that behaves as a project container, the subdirectory myapp (initialized as python package) and the manage.py module
3. Verification: change to outer myapp directory and run python manage.py runserver. To verify the Django project works, go to http://127.0.0.1:8000 (the default localhost) on the web browser. Alternatively, the ip address and port can be specified using python manage.py runserver 0.0.0.0:8000
4. Create an (one or more) app inside the project to import as a top-level module by changing to the outer myapp directory and running python manage.py startapp newapp. This will create a newapp dirctory (initialized as a python package) with all relevant files to get started.
5. Create all necessary database tables (based on INSTALLED_APPS) by running python manage.py migrate
6. After defining all models for newapp in newapp.models.py, run python manage.py makemigrations newapp to create/change database models. To see the SQL commands executed by the migrate command, run python manage.py sqlmigrate poll xxx

Steps to follow to add app URLs to a Django project

1. Create views (class-based or function-based) in newapp/views.py
2. Add url patterns to newapp/urls.py using path('url_path', view_function, name='url_pattern_name'). This will be newapp's URLConf.
3. Add newapp URLConf to myapp/urls.py using path and include to include urls as URLConfs: path('url_path', include('newapp.urls'))

To add an app to a Django project

• In myapp/settings.py add 'newapp.apps.NewappConfig' to list INSTALLED_APPS

Add Jinja2 templating engine to Django (in addition to Django templating engine)

• Add a dictionary to app/settings.py in TEMPLATES list for enabling access to jinja templating engine from django

  from pathlib import Path
  
  BASE_DIR = Path(__file__).resolve().parent.parent
  PROJECT_DIR = Path(__file__).resolve().parent
  
  TEMPLATES = [{'BACKEND':'django.template.backends.jinja2.Jinja2',
                  'DIRS': [ PROJECT_DIR / 'jinjatemplates' ],
                'APP_DIRS': True,
                },
              ]