Dev djangosporti

General React Architecture

Mobile Safari does not support position: fixed when an input focused and virtual keyboard displayed.

To force it work the same way as Mobile Chrome, you have to use position: absolute, height: 100% for the whole page or a container for your pseudo-fixed elements, intercept scroll, touchend, focus, and blur events.

The trick is to put the tapped input control to the bottom of screen before it activates focus. In that case iOS Safari always scrolls viewport predictably and window.innerHeight becomes exactly visible height.

Open https://avesus.github.io/docs/ios-keep-fixed-on-input-focus.html in Mobile Safari to see how it works.

Please avoid forms where you have several focusable elements because more tricks to fix position will be necessary, those were added just for demonstration purposes.

My Vim-related gists

Long-form

PSQL CLI Client

Psql is a fully-fledged CLI client for Postgres, but most people are unaware of its many advanced features.

~/.psqlrc can be edited to persist any behavior or configuration settings you want between psql sessions. It behaves just like ~/.bashrc or ~/.vimrc, sourced at psql launch. See More out of psql for some interesting configurations.

If you have a long query to write and rewrite, you can use \e to edit your query in an editor.

Use \watch at the end of a query in order to automatically re-run the query every few seconds - great for monitoring while making changes elsewhere in your application architecture.

While a lot of Node.js guides recommend using JWT as an alternative to session cookies (sometimes even mistakenly calling it "more secure than cookies"), this is a terrible idea. JWTs are absolutely not a secure way to deal with user authentication/sessions, and this article goes into more detail about that.

Secure user authentication requires the use of session cookies.

Cookies are small key/value pairs that are usually sent by a server, and stored on the client (often a browser). The client then sends this key/value pair back with every request, in a HTTP header. This way, unique clients can be identified between requests, and client-side settings can be stored and used by the server.

Session cookies are cookies containing a unique session ID that is generated by the server. This session ID is used by the server to identify the client whenever it makes a request, and to associate session data with that request.

*S

	import argparse

	from django.core.management.base import BaseCommand
	from django.db import connection


	class Command(BaseCommand):
	help = 'Renames app. Usage rename_app [old_name] [new_name] [classes ...]'

	def add_arguments(self, parser):

	[
	{
	"name": "freeCodeCamp/freeCodeCamp",
	"description": "The https://freeCodeCamp.com open source codebase and curriculum. Learn to code and help nonprofits.",
	"stars": 266038,
	"type": "other"
	},
	{
	"name": "twbs/bootstrap",
	"description": "The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.",

	// check version
	node -v \|\| node --version

	// list locally installed versions of node
	nvm ls

	// list remove available versions of node
	nvm ls-remote

	// install specific version of node

	from django.db import models


	class Member(models.Model):
	# RE: null vs blank
	#
	# NULL https://docs.djangoproject.com/en/1.10/ref/models/fields/#null
	# Avoid using null on string-based fields such as CharField and TextField because
	# empty string values will always be stored as empty strings, not as NULL.
	#

	#!/bin/bash
	iatest=$(expr index "$-" i)

	#######################################################
	# SOURCED ALIAS'S AND SCRIPTS BY zachbrowne.me
	#######################################################

	# Source global definitions
	if [ -f /etc/bashrc ]; then
	. /etc/bashrc