Uğur Özyılmazel vigo

Workflows (States) in Django

I'm going to cover a simple, but effective, utility for managing state and transitions (aka workflow). We often need to store the state (status) of a model and it should only be in one state at a time.

Common Software Uses

Publishing (Draft->Approved->Published->Expired->Deleted)

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

Lütfen https://github.com/AB2016-Ruby-on-Rails-101/Linkler sitesine gidiniz!

Image Place Holders

https://unsplash.it/

	# https://hakibenita.com/how-to-turn-django-admin-into-a-lightweight-dashboard

	from django.contrib import admin
	from django.db.models import Count, Sum, Min, Max, DateTimeField)
	from django.db.models.functions import Trunc

	from . import models


	def get_next_in_date_hierarchy(request, date_hierarchy):

	#!/usr/bin/env python

	import sys
	import time
	import argparse
	import os
	import json
	import socketserver

	from http.server import BaseHTTPRequestHandler

	class PubSub(object):
	"""
	Very simple Pub/Sub pattern wrapper
	using simplified Redis Pub/Sub functionality.

	Usage (publisher)::

	import redis

	r = redis.Redis()

	body {
	font-family: 'Helvetica';
	}
	.markdown-body {
	font-family: 'Helvetica';
	}
	.octotree_views {
	font-family: 'FiraCode-retina';
	font-size: .75rem;
	}

	tell application "Safari"
	set total_tab_count to 0
	set number_of_windows to number of windows
	repeat with x from 1 to number_of_windows
	try
	set current_windows_tab_count to number of tabs in window x
	set total_tab_count to total_tab_count + current_windows_tab_count
	on error error_message
	log error_message
	end try