Rui Andrada shingonoide

método(localizado em app/helpers/application_helper.rb):

def check_url(url)
  return true if /^(?:(?:https\:\/\/))|(?:(?:http\:\/\/))/.match(url)
  return false
end

spec(localizado em spec/models/user_spec.rb):

This grouped bar chart is constructed from a CSV file storing the populations of different states by age group. The chart employs conventional margins and a number of D3 features:

d3.csv - load and parse data
d3.scale.ordinal - x-position encoding and color encoding
d3.scale.linear - y-position encoding
d3.format - SI prefix formatting (e.g., “10M” for 10,000,000)
d3.max - compute domains
d3.keys - compute column names
d3.svg.axis - display axes

This simple bar chart is constructed from a TSV file storing the frequency of letters in the English language. The chart employs conventional margins and a number of D3 features:

d3.tsv - load and parse data
d3.format - format percentages
d3.scale.ordinal - x-position encoding
d3.scale.linear - y-position encoding
d3.max - compute domains
d3.svg.axis - display axes

	/* Checkbox Hack */

	input[type=checkbox] {
	position: absolute;
	top: -9999px;
	left: -9999px;
	}
	label {
	-webkit-appearance: push-button;
	-moz-appearance: button;

	# encoding: UTF-8
	namespace :brazil do
	desc "Load brazilian states for spree store"
	task :states => :environment do
	brazil = Country.find :first, :conditions => {:name => "Brazil"}
	states = <<STATES
	AC,Acre
	AL,Alagoas
	AP,Amapá
	AM,Amazonas