Walker Wilkins wwilkins

The introduction to Reactive Programming you've been missing

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Assigning an object to a belongs_to association does not automatically save the object. It does not save the associated object either.

When you assign an object to a has_one association, that object is automatically saved (in order to update its foreign key).
In addition, any object being replaced is also automatically saved, because its foreign key will change too
If either of these saves fails due to validation errors, then the assignment statement returns false and the assignment itself is cancelled.
If the parent object (the one declaring the has_one association) is unsaved (that is, new_record? returns true) then the child objects are not saved. They will automatically when the parent object is saved.

Models	Examples
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	#!/bin/bash
	# node-reinstall
	# credit: http://stackoverflow.com/a/11178106/2083544

	## program version
	VERSION="0.0.13"

	## path prefix
	PREFIX="${PREFIX:-/usr/local}"

	/**
	* Spot
	*
	* SmartThings device type attempting to integrate with https://github.com/minton/Spot
	*
	* Copyright 2014 Joseph Pintozzi
	*
	* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
	* in compliance with the License. You may obtain a copy of the License at:
	*

	/**
	* I converted the SCSS mixin to LESS for the awesome coders like myself in response to a blog post on 37Signals - http://37signals.com/svn/posts/3271-easy-retina-ready-images-using-scss
	*
	* Update: 2014-08-04 - Updated a long-standing bug where retina images were shown no matter what in the first background-image property.
	* - Updated retina media query to be more reliable ()
	* Update: 2013-11-13 - Picked up another technique thanks to reading this post from Tyler Tate, auto-fill in the second filename for the retina image, http://tylertate.com/blog/2013/06/11/retina-images-using-media-queries-and-LESS-CSS.html
	* Update: 2013-04-16 - Have recently found a few use cases when using a retina pattern from Subtle Patterns on the <body>, this has come in handy
	* Update: 2013-04-05 - Some research in the Wordpress Core(http://core.trac.wordpress.org/ticket/22238#comment:5) was pointed out that some tests may be redundant (Thanks @kbav) so I've cleaned these up
	* Update: 2012-12-29 - U

	@media only screen and (min-width: 320px) {

	/* Small screen, non-retina */

	}

	@media
	only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 320px),
	only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 320px),
	only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 320px),

	module MultiParameterAttributes

	def filter_time(attributes, name)
	attrs = attributes.collect do \|key, value\|
	if key =~ /^#{Regexp.escape(name.to_s)}\((\d+)(\w)\)$/
	[$1.to_i, value.send("to_#$2")]
	end
	end.compact.sort_by(&:first).map(&:last)
	Time.zone.local(*attrs) unless attrs.empty?
	end