matpowel

class Tableless < ActiveRecord::Base

  def self.column(name, sql_type = nil, default = nil, null = true)
    columns << ActiveRecord::ConnectionAdapters::Column.new( name.to_s, default, sql_type.to_s, null )
  end

  def self.columns()
    @columns ||= [];
  end

ono

# If you run unicorn on FreeBSD Jail, you might experience the following error 
# when you send some signals such as HUP, USR2 to master process.
# adding listener failed addr=0.0.0.0:8080 (in use)
# 
# This snippet gives you a workaround without specifying IP address.

# Returns true if the host is in the Jail.
def in_jail?
  `sysctl security.jail.jailed` =~ /security.jail.jailed: 1/ ? true : false
end

samqiu

#!/usr/bin/ruby
require 'rss'

# Usage
# $ ./railscasts.rb http://railscasts.com/subscriptions/YOURRAILSCASTRSS/\/
#     episodes.rss
# OR
# $ ./railscasts.rb

p 'Downloading rss index'

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

ryansobol

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

nicolai86

RYAML = <<-BASH
function ryaml {
  ruby -ryaml -e 'puts ARGV[1..-1].inject(YAML.load(File.read(ARGV[0]))) {|acc, key| acc[key] }' "$@"
};
BASH
namespace :sync do
  task :db do
    isolate do
      invoke :environment

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

hulous

## MAKEFILE FOR C PROJECT
MYAPP = application
HEADERS = $(MYAPP).h
OBJECTS = $(MYAPP).o

default: $(MYAPP)

%.o: %.c $(HEADERS)
	gcc -c $< -o $@

trev

# Ruby CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-ruby/ for more details

defaults: &defaults
  working_directory: ~/split_app
  parallelism: 2

  docker:
    - image: circleci/ruby:2.5.0-node-browsers

deHelden

SETUP VPS

based on DigitalOcean guide

Create local project

local$ rails new appname -T -d postgresql
local$ rails g scaffold Story title:string body:text
local$ rails db:migrate