Morten Heiberg heiberg

YapDatabaseExtensions and CloudKit

This is a follow-up to this question, seeking advice on how to use YapDatabaseExtensions' value types with the CloudKit extension for YapDatabase.

Dan Thorpe offered some excellent suggestions in the discussion linked above. Many thanks to him. This is my first stab at a solution. I hope I didn't butcher his advice too badly.

Intention

If this is useful to anyone trying to add CloudKit sync to an app using YapDatabaseExtensions and ValueCoding that's terrific.

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	# iPhone with home button
	xcrun simctl status_bar booted clear
	xcrun simctl status_bar booted override \
	--time "9:41 AM" \
	--wifiBars 3 --cellularBars 4 --operatorName ""
	xcrun simctl spawn booted defaults write com.apple.springboard SBShowBatteryPercentage 1

	# iPhone X
	xcrun simctl status_bar booted clear
	xcrun simctl status_bar booted override --time "9:41" --wifiBars 3 --cellularBars 4

	import SwiftUI

	let colors = [
	Color.pink,
	Color.blue,
	Color.green,
	Color.orange,
	Color.purple,
	Color.black,
	]

	struct Contact: Decodable, CustomStringConvertible {
	var id: String
	@NestedKey
	var firstname: String
	@NestedKey
	var lastname: String
	@NestedKey
	var address: String

	enum CodingKeys: String, NestableCodingKey {

	extension NSTimer {
	/**
	Creates and schedules a one-time `NSTimer` instance.

	- Parameters:
	- delay: The delay before execution.
	- handler: A closure to execute after `delay`.

	- Returns: The newly-created `NSTimer` instance.
	*/

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	SXlNRFUxTmxvWERURTBNRFl4TkRJeU1EVTFObG93WkRFak1DRUdBMVVFQXd3YVVI

	def generate_secure_s3_url(s3_key)
	#
	# s3_key would be a path (including filename) to the file like: "folder/subfolder/filename.jpg"
	# but it should NOT contain the bucket name or a leading forward-slash
	#
	# this was built using these instructions:
	# http://docs.amazonwebservices.com/AmazonS3/latest/dev/index.html?S3_QSAuth.html
	# http://aws.amazon.com/code/199?_encoding=UTF8&jiveRedirect=1

	s3_base_url = MyApp::Application::S3_BASE_URL # i.e. https://mybucket.s3.amazonaws.com

	# List of environments and their heroku git remotes
	ENVIRONMENTS = {
	:staging => 'myapp-staging',
	:production => 'myapp-production'
	}

	namespace :deploy do
	ENVIRONMENTS.keys.each do \|env\|
	desc "Deploy to #{env}"
	task env do