Django

• OWASP - Django Security Cheat Sheet
• Ninja
  • Fields selections Issue
• Scaffold
• Avoid overwriting Model.delete. For example, overwriting to ensure soft delete (idea from django-tenant-users):

  def delete(self, *args, hard=False, **kwargs):
  	if not hard:
  		raise DeleteError("Use Model.soft_delete()")
  	super().delete(*args, **kwargs)ht
  

• How to test unmanaged models? Source

  # conftest.py
  def pytest_sessionstart():
  	from django.apps import apps
  
  	unmanaged_models = [m for m in apps.get_models() if not m._meta.managed]
  
  	for m in unmanaged_models:
  		m._meta.managed = True
  

• virtual_only fields
  • Advantages: 1. Improved performance; 2. Consistent interface; 3. Compatibility with Django’s ORM; 4. Integration with serialization.
  • from https://henriquebastos.net/how-chatgpt-quickly-helped-me-understand-djangos-source-code
• django.core.exceptions.ImproperlyConfigured: Cannot import '<app>'. Check that '<project>.<app>.apps.<App>Config.name' is correct. #troubleshooting
  • Rename <App>Config.name from <app> to <project>.<app>

Admin Link to heading

• AdminLTE - Admin dashboard template based on Bootstrap
• Awesome 1 and 2
• jazzmin - AdminLTE 3 & Bootstrap 4
• JET Reboot -
• Semantic UI - Docs
• Unfold Admin - GitHub - HTMX, Alpine.js and TailwindCSS
• Volt - Based on Bootstrap 5

Auth Link to heading

• django-allauth
• social-app-django

GraphQL Server Link to heading

• Ariadne
  • Missing maintainer
• Graphene
  • docs
  • Poor integration between Models and Queries
• Strawberry
  • Needs to define a schema class. Example:

  @strawberry.django.type(models.Fruit)
  class Fruit:
      id: auto
      name: auto
      color: 'Color'
    ```
  

• Tartiflette

Health Check Link to heading

• django-health-check
• django-watchman

Request/Response Cycle Link to heading

flowchart TD

asgi["(A|W)SGI"]
db[Database]
client[Client]


subgraph Django
	middlewares[Middlewares]
	urls[URLs]
	view[View]
	orm[ORM]
	templates[Templates]

	middlewares-- Request -->urls-- Request -->view
	view-- Response -->middlewares

	middlewares -. Query objects ...- orm
	view-. Query objects ...- orm
	view-. Render ...- templates
end

client<-- HTTP req/res -->asgi
asgi<-- Request/Response -->middlewares

orm<-. Query/Data .->db

Servers Link to heading

ASGI Link to heading

• Daphne - Django Channels HTTP/WebSocket server
• Hypercorn -  ASGI and WSGI. Supports HTTP/1, HTTP/2, WebSockets (over HTTP/1 and HTTP/2). Can utilise asyncio, uvloop, or trio.
• Mangum - running ASGI applications in AWS#Lambda.
• uvicorn - supports HTTP/1.1 and WebSockets.

WSGI Link to heading

• gunicorn
• Hypercorn

Testing Link to heading

• (pytest) How to define a project conftest (shared between all apps)?
  • The conftest.py must be in the same directory of manage.py

Tree structures Link to heading

• django-mptt - Utilities for implementing Modified Preorder Tree Traversal (This project is currently unmaintained)
• django-tree - Fast and easy tree structures (In beta, it can’t be used yet in production.)
• django-treebeard - Efficient tree implementations
• django-tree-queries - Adjacency-list trees using recursive common table expressions