Wayne Chu wayne5540

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

This was my solution for a polymorphic many-to-many association

class ItemCountry < ActiveRecord::Base
  belongs_to :locatable, :polymorphic => true
  belongs_to :country
  # fields are :locatable_id, :locatable_type, :country_id
end

class Title < ActiveRecord::Base

has_many :countries, :through => :item_countries, :as => :locatable

專案名稱： Rails新手村網站

主旨：收集 Rails 有用 Link

基本功能

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Multiple MySQL Versions for Development

Options included below:

Using Docker docker-compose
Using Homebrew brew

Using Docker (recommended)

This gist was originally created for Homebrew before the rise of Docker, yet it may be best to avoid installing mysql via brew any longer. Instead consider adding a barebones docker-compose.yml for each project and run docker-compose up to start each project's mysql service.

	require 'feedzirra'

	# fetching a single feed
	feed = Feedzirra::Feed.fetch_and_parse("http://feeds.feedburner.com/PaulDixExplainsNothing")

	# feed and entries accessors
	feed.title # => "Paul Dix Explains Nothing"
	feed.url # => "http://www.pauldix.net"
	feed.feed_url # => "http://feeds.feedburner.com/PaulDixExplainsNothing"
	feed.etag # => "GunxqnEP4NeYhrqq9TyVKTuDnh0"

	require 'io/console'

	# Reads keypresses from the user including 2 and 3 escape character sequences.
	def read_char
	STDIN.echo = false
	STDIN.raw!

	input = STDIN.getc.chr
	if input == "\e" then
	input << STDIN.read_nonblock(3) rescue nil

	// Determine if an element is in the visible viewport
	function isInViewport(element) {
	var rect = element.getBoundingClientRect();
	var html = document.documentElement;
	return (
	rect.top >= 0 &&
	rect.left >= 0 &&
	rect.bottom <= (window.innerHeight \|\| html.clientHeight) &&
	rect.right <= (window.innerWidth \|\| html.clientWidth)
	);

	# config/routes.rb
	resources :documents do
	scope module: 'documents' do
	resources :versions do
	post :restore, on: :member
	end

	resource :lock
	end
	end

	Plugboard = Hash[*('A'..'Z').to_a.sample(20)]
	Plugboard.merge!(Plugboard.invert)
	Plugboard.default_proc = proc { \|_, key\| key }

	def build_a_rotor
	Hash[('A'..'Z').zip(('A'..'Z').to_a.shuffle)]
	end

	ROTOR_1, ROTOR_2, ROTOR_3 = build_a_rotor, build_a_rotor, build_a_rotor

	function gcme(){
	message=$1
	message_with_emoji=$message
	if [[ $message == "add" ]]
	then
	message_with_emoji="$1 :beer:"
	elif [[ $message == "remove" ]]
	then
	message_with_emoji="$1 :mask:"
	elif [[ $message == "fix" ]]