Jindong Yang yangjindong

traviskroberts / gist:2830535

Created May 29, 2012 20:33

FactoryGirl Polymorphic Association

	class Alert < ActiveRecord::Base
	belongs_to :alertable, :polymorphic => true
	end


	class Region < ActiveRecord::Base
	has_many :alerts, :as => :alertable
	end

bdargan / sublime_text_2_useful_shortcuts.md

Created May 15, 2012 22:59 — forked from nuxlli/sublime_text_2_useful_shortcuts.md

Sublime Text 2 - Useful Shortcuts

Tested in Mac OS X: super == command

Open/Goto

webmat / dashboards.rb

Created February 22, 2012 20:46

First draft of an active_admin-based view for Delayed::Job

	ActiveAdmin::Dashboards.build do
	# Add this section in your dashboard...

	section "Background Jobs" do
	now = Time.now.getgm
	ul do
	li do
	jobs = Delayed::Job.where('failed_at is not null').count(:id)
	link_to "#{jobs} failing jobs", admin_jobs_path(q: {failed_at_is_not_null: true}), style: 'color: red'
	end

lbj96347 / JS-Regular.html

Created February 1, 2012 06:06

JS正则提取字符串／中文／英文／数字


	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<title>javaScript正则表达式提取字符串中字母、数字、中文</title>
	</head>
	<body>
	<input type="text" id="oText" value="李秉骏的常用代号是96347，英文名字是CashLee噢" size=100><br/>
	<input type="button" value="number" onclick="get_character_you_want(this);">

fajrif / rvm_cheatsheet

Created June 14, 2011 14:11

RVM cheatsheet

	RVM home page: http://rvm.beginrescueend.com

	Install RVM
	------------

	See http://rvm.beginrescueend.com/rvm/install/

	bash < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)

	Install rvm for all users

lxneng / gist:741932

Created December 15, 2010 13:21

install PostgreSQL 9 in Mac OSX via Homebrew

	install PostgreSQL 9 in Mac OSX via Homebrew


	Mac OS X Snow Leopard
	System Version: Mac OS X 10.6.5
	Kernel Version: Darwin 10.5.0


	Install notes for PostgreSQL 9.0.1 install using Homebrew:
	sh-3.2# brew install postgresql

btelles / split_into.rb

Created January 23, 2010 20:01

Split a hash into multiple equal-sized hashes

	# Extend hashes by adding one method that allows you to split a hash into an array of equal-sized hashes.
	# Filter items to be included in the result by adding a selecting block that returns true
	# if the key/value is to be kept.
	# Per the usage example, return values are not ordered unless you're using Ruby 1.9

	# usage:
	# a = {1 => 'a', 2 => 'b', 3 => 'c', 4 => 'd', 5 => 'e'}

	# a.split_into(3) {\|k,v\| k.instance_of?(Integer)}

house9 / Net::HTTP http get.rb

Created January 6, 2010 17:47

	require 'net/http'
	require 'uri'

	def get_html_content(requested_url)
	url = URI.parse(requested_url)
	full_path = (url.query.blank?) ? url.path : "#{url.path}?#{url.query}"
	the_request = Net::HTTP::Get.new(full_path)

	the_response = Net::HTTP.start(url.host, url.port) { \|http\|
	http.request(the_request)