Johannes la Poutre squio

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Squashing Git Commits

The easy and flexible way

This method avoids merge conflicts if you have periodically pulled master into your branch. It also gives you the opportunity to squash into more than 1 commit, or to re-arrange your code into completely different commits (e.g. if you ended up working on three different features but the commits were not consecutive).

Note: You cannot use this method if you intend to open a pull request to merge your feature branch. This method requires committing directly to master.

Switch to the master branch and make sure you are up to date:

Last updated: 2017-03-18

Searching for Files

Find images in a directory that don't have a DateTimeOriginal

exiftool -filename -filemodifydate -createdate -r -if '(not $datetimeoriginal) and $filetype eq "JPEG"' .

###Output photos that don't have datetimeoriginal to a CSV### Note this can take a long time if you have a lot of jpgs


	query IntrospectionQuery {
	__schema {
	queryType { name }
	mutationType { name }
	subscriptionType { name }
	types {
	...FullType
	}
	directives {

	import csv
	from django.http import HttpResponse

	def export_as_csv_action(description="Export selected objects as CSV file", fields=None, exclude=None, header=True):
	"""
	This function returns an export csv action
	'fields' and 'exclude' work like in django ModelForm
	'header' is whether or not to output the column names as the first row
	"""
	def export_as_csv(modeladmin, request, queryset):

	# =================================================================================================
	# RTL SDR & Dump1090 installation for OSX El Capitan
	# =================================================================================================
	# This is written as a guide for those wanting to install RTL SDR and Dump1090 for OSX El Capitan
	# It may work on other versions of OSX
	# I am using a R820T from Jetvision.de
	# http://bit.ly/1QynTts - without antenna
	# http://bit.ly/1O60IUV - with small indoor antenna
	# -------------------------------------------------------------------------------------------------
	# To follow this guide you will need to use the Terminal app

	{% if messages %}
	{% for message in messages %}
	<div class="alert alert-{{ message.tags }} alert-dismissible text-center" role="alert">
	<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
	<strong>{% if message.level == DEFAULT_MESSAGE_LEVELS.ERROR %}Error{% else %}{{ message.tags\|title }}{% endif %}!</strong> {{ message }}
	</div>
	{% endfor %}
	{% endif %}

	#!/bin/bash

	usage() {
	echo "Usage: $(basename $0) [package] ..."
	}

	app_package=$1
	shift

	if [ -z $app_package ]; then

	// Continuously changing GIST of UIWebView 'tweaks' I use. Might be useful to others,
	// hope Google finds this. Some of these already passed Review, but one never knows ;).
	// Happy coding!

	- (void)ScrollView_setContentOffset:(CGPoint)offset {
	// Prevent superfluous scrolling animations (eg when toggling keyboard) by completely disabling scrolling. We achieve scrolling through inner scroll views (overflowing html elements).
	}

	- (id)WebBrowserView_inputAccessoryView {
	// Make the keyboard accessory view (next/prev,submit buttons) optional, it really takes up to much screen estate in a normal app.

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048