aaronjensen

module AllCacheKey
  extend ActiveSupport::Concern

  module ClassMethods
    def cache_key
      pluck("COUNT(*)", "MAX(updated_at)").flatten.map(&:to_i).join("-")
    end
  end
end

epicserve

#!/usr/bin/env bash

# This script prints out all of your Redis keys and their size in a human readable format
# Copyright 2013 Brent O'Connor
# License: http://www.apache.org/licenses/LICENSE-2.0

human_size() {
        awk -v sum="$1" ' BEGIN {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; } '
}

louismullie

require 'graph-rank'
require 'treat'

# Implements the PageRank algorithm for
# unsupervised extractive summarization.
# 
# Reference: R. Mihalcea and P. Tarau, “TextRank: 
# Bringing Order into Texts,” in Proceedings of 
# EMNLP 2004. Association for Computational 
# Linguistics, 2004, pp. 404–411.

pauldatta

# https://github.com/drapergem/draper/wiki/Using-Rails-Path-Helpers-in-Draper-Decorators-with-Grape
# https://github.com/nesquena/rabl/wiki/Using-Rabl-with-Grape

 module Grape
  class Endpoint
    include Rails.application.routes.url_helpers
    default_url_options[:host] = ::Rails.application.routes.default_url_options[:host]
  end
end

psychocandy

# The following should prevent an ArgumentError "invalid %-encoding (...%)" exception from being raised for malformed URLs.
# To use this code simply drop this in your rails app initializers.
# See: https://github.com/rack/rack/issues/337
# Taken from: http://stackoverflow.com/a/11162317/1075006


module URI

  major, minor, patch = RUBY_VERSION.split('.').map { |v| v.to_i }

jlong

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";

parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.search;   // => "?search=test"
parser.hash;     // => "#hash"
parser.host;     // => "example.com:3000"

pgib

#!/bin/sh

for h in `find . -name '*.haml'`; do

	if ! echo $h | grep -q ".html.haml"; then

		hh=`echo $h | sed -e s/.haml/.html.haml/`
		if [ -e $hh ]; then
			echo "Can't rename $h to $hh because $hh already exists. :("
		else

butlermh

#!/usr/bin/ruby

require 'rubygems'
require 'open-uri'
require 'nokogiri'
require 'net/http'
require 'uri'
require 'amazon/aws/search'

include Amazon::AWS

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')