Weston Triemstra thermistor

TL;DR

Create a backup:

pg_dumpall > mybackup.sql

Perform the upgrade:

sudo pg_dropcluster 9.4 main --stop

OS X Mavericks, failing specs and libxml

3 Quick Tips for Coding with OS X 10.9 Mavericks Some good tips on homebrew and xcode to get compiling working

Install Ruby on Rails · Mac OS X Mavericks RVM / Homebrew / Git

Issues / PR

capybara-webkit: CoreText performance note

Yeoman + Compass Sprites

Setup

generator-webapp has support for compass out of the box. However, in order to use one of my favorite features of it — sprites and the image_url helper — you have to make some adjustments to the Gruntfile.

Let's assume you use a SASS stylesheet like this one:

@import "design/*.png"

	<!DOCTYPE html>
	<html>
	<head>
	<style>
	body.loading #splash {
	opacity: 1;
	}
	#splash {
	position: absolute;
	top: 0;

	- name: ensure github.com is a known host
	lineinfile:
	dest: /root/.ssh/known_hosts
	create: yes
	state: present
	line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
	regexp: "^github\\.com"

	//********* IMPORTS ***************
	var gulp = require('gulp');
	var sass = require('gulp-ruby-sass');
	var gutil = require('gulp-util');
	var rename = require("gulp-rename");
	var map = require("map-stream");
	var livereload = require("gulp-livereload");
	var concat = require("gulp-concat");
	var uglify = require('gulp-uglify');
	var watch = require('gulp-watch');

	class UserAdder < Struct.new(:user_params, :company_id, :role)
	extend FriendlyMethodObject

	def initialize(*)
	super
	# Provide defaults for optional members
	self.role \|\|= :default_role
	end

	def call

	class UserController < ActionController::Base

	def new
	@user = User.new
	end

	def create
	result = SignupUser.call(params[:user])
	if result.successful?
	redirect_to root_url, notice: "A welcome e-mail is on it's way!"

	# app/models/concerns/multiparameter_attribute_assignment.rb

	module MultiparameterAttributeAssignment
	include ActiveModel::ForbiddenAttributesProtection

	def initialize(params = {})
	assign_attributes(params)
	end

	def assign_attributes(new_attributes)

	# An abstract base class used to create simple serializers
	# for ActiveRecord objects
	class BaseSerializer
	include Rails.application.routes.url_helpers

	attr_reader :serialized_object

	def initialize(serialized_object)
	@serialized_object = serialized_object
	end