associations.rake

namespace :associations do

  desc "display a models associations"
  task :model => :environment do
    puts "\n"
    ENV['model'].constantize.reflect_on_all_associations.each do |association|
      assoc_str =  "#{association.macro} :#{association.name}"
      unless association.options.blank?
        association.options.each do |key,val|
          assoc_str += ", :#{key} => #{val}" unless val.blank? || key == :extend
        end
      end
      puts assoc_str
    end
    puts "\n"
  end

  desc "display associations for all models"
  task :all => :environment do
    puts "\n"
    folder = File.join(RAILS_ROOT, "app", "models")      
    Dir[File.join(folder, "*")].each do |filename|
      model_name = File.basename(filename).sub(/.rb$/, '').camelize
      if model_name.constantize.respond_to?(:reflect_on_all_associations)
        ENV['model'] = model_name
        puts "associations for: #{model_name}"
        Rake::Task["associations:model"].execute
      end
    end
  end

end