UV

# Install uv
curl -LsSf https://astral.sh/uv/install.sh | sh
wget -qO- https://astral.sh/uv/install.sh | sh

# Github Action
sudo ln -s /home/ubuntu/.local/bin/uv /usr/local/bin/uv

Async views

• For the function-based view, declaring the whole view using "async def"
• For the class-based view, declaring the HTTP method handlers, such as "async def get()" and "async def post()"

Queries & the ORM

async for author in Author.objects.filter(name__startswith="A"):
   book = await author.books.afirst()

Setup Django virtual environment

Windows

python -m venv .venv
.venv\Scripts\activate
python -m pip install pip --upgrade
pip install -r requirements\development.txt
pip install -r requirements\production.txt

MacOS,Linux

python3 -m venv .venv
. venv/bin/activate
python -m pip install pip --upgrade
pip install -r requirements/development.txt
pip install -r requirements/production.txt

Features

• Ready Bootstrap-themed pages
• User Registration/Sign up
• Better Security with 12-Factor recommendations
• Logging/Debugging Helpers
• Works on Python 3 and Django 2

{{ project_name }}

!!! project name CAN NOT use '-' due to python conflict

Installation

1. Change project name and django_skeleton folder name

Quick start

To set up a development environment quickly, first install Python 3. It comes with virtualenv built-in. So create a virtual env by: 1. $ python3 -m venv {{ project_name }} 2. $ python -m pip install --upgrade pip 3. $ . {{ project_name }}/bin/activate

Install all dependencies:

pip install -r requirements.txt

Run migrations: # Update database change scripts python manage.py makemigrations

# Update database change
python manage.py migrate

# Create superuser
python manage.py createsuperuser

Production Deployment

daphne myproject.asgi:application

django-allauth Google Authenticate

https://www.youtube.com/watch?v=NG48CLLsb1A https://developers.google.com/gmail/api/quickstart/js https://console.developers.google.com/ PO File Translate

Django create app add to project

(venv)$ python manage.py startapp <new_app>

Update Table (Drop Table Method)

Method 1:

1. Delete application relate tables and data $ python manage.py migrate registrationform zero
2. Recreate Table $ python manage.py ./manage.py migrate

Method 2:

1. Export Data from Workbench (Data Only)
2. Update exported data
3. Drop Table from database
4. Update Drop Table status in Django $ python manage.py ./manage.py migrate --fake [table_name] zero
5. Recreate Table $ python manage.py ./manage.py migrate

Django SEO

The ping_google() command only works if you have registered your site with Google Webmaster Tools. Registered your site with Google Webmaster Tools. Google Search Console

python manage.py ping_google

Daphne

daphne django_skeleton.asgi:application

Django Auto Translate - django-autotranslate

# Translate language
python manage.py makemessages -a
python manage.py makemessages -l fr
python manage.py makemessages -l zh_Hans

# Compile language po for production
python manage.py compilemessages -l fr -l zh_Hans

# django-autotranslate (User custom version)
python manage.py translate_messages -u -f
python manage.py compilemessages

gettext() vs gettext_lazy()

Use gettext_lazy() in forms or models

In definitions like forms or models you should use gettext_lazy because the code of this definitions is only executed once (mostly on django's startup);

use gettext()) in view

In views and similar function calls you can use gettext without problems, because everytime the view is called gettext will be newly executed, so you will always get the right translation fitting the request!

Provide initial data

python manage.py loaddata api/books.json

Generating an OpenAPI Schema

python manage.py generateschema --file static/site/openapi/schema.yaml

Google Login "Invalid id_token"

django-allauth==0.50.0 dj-rest-auth==4.0.1

Test SendEmail

python manage.py shell

>>> from dharro.utils import SendEmail
>>> SendEmail('test', 'test')

Squash Migration

# Apply all change to DB
python manage.py migrate

# Squash merge from 0003_faqcategory_order (last migration) to 0002_faqcategory_faqs
python manage.py squashmigrations products 0002_faqcategory_faqs 0003_faqcategory_order

# Delete migrations and rename squash migrations to 
0002_squash_0002_faqcategory_faqs.py -> 0002_faqcategory_faqs.py

# Validate the squash merge migraiton
python manage.py makemigration
python manage.py migrate

# Show migration
python manage.py showmigrations

Django Live Reload

python manage.py runserver
python manage.py livereload