From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2009-12-12T01:35:07+09:00
Subject: Re: Fill gaps in Array of Hashes

This is a little cleaner. with the same result:

# Aldric Giacomoni's neat solution, modified slightly
require 'rubygems'
require 'activesupport' # What? I'm lazy. to_date is damn handy.

array = [
{:positive=>"0", :neutral=>"2", :total=>"5", :date=>"2009-12-01", :negative=>"3"},
	
{:positive=>"3", :neutral=>"3", :total=>"7", :date=>"2009-12-09", :negative=>"1"},
	
{:positive=>"1", :neutral=>"1", :total=>"3", :date=>"2009-12-05", :negative=>"1"}
]
range = ("2009-12-01".to_date .. "2009.12.11".to_date)

range.each { |date|
  next if array.find { |row| row[:date] == date.to_s}
  array <<
{:positive=>"0", :neutral=>"0", :total=>"0", :date=>date.to_s, :negative=>"1"}
}

sorted = array.sort { |r1, r2| r1[:date] <=> r2[:date] }
sorted.each { |row| puts row.inspect}

HTH,
Richard