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Ruby On Pains

Have you ever heard about the Rails way? I would like to introduce some pains that I've seen and keep seeing in all the Rails projects due to the Rails way...

ActiveRecord

How many times do we need to find an object in a Rails project? How many times do we create, update or delete objects from the DB? Many times, isn't it? We are used to repeat these actions in all our ActiveRecord classes. We do it like monkeys, never ask for a timeout and think about it. It seems to be something normal when we use this framework, it's the famous Rails way. It's normal for us to have a class that answers find, update, save, etc, but we never think if it’s right and whether there could be a better way of doing it.

It's typical to find this kind of logic in a Rails project, see the example of this controller:

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		def self.generate_provider_urls_for(generator, care_type, profile, provider)
			status_for_care_type = profile.send("#{care_type}_status".to_sym)
			if status_for_care_type.active?
				if provider.present? && provider.location.present?
					generator.literal UrlHelper.profile_seo_path(:care_type => Profile::Provider::SeoCareType.care_type_to_seo(care_type), :stateabbr => provider.location.stateabbr.downcase, :cityname => provider.location.cityname.parameterize, :member_id => provider.id)
				end
			end
		end

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	per_batch = 10000
	min = 0

	0.step(Profile::ProviderData.count, per_batch) do |offset|
		puts "Offset: #{offset} - #{Time.now}"
		profiles = Profile::ProviderData.order_by([:member_id, :asc]).limit(per_batch).skip(offset).only(:member_id, :babysitter_status, :nanny_status, :pet_care_status, :companion_care_status)
		max = 0
		member_ids = profiles.each{|p| max = p.member_id if p.member_id > max }
		providers = Account::Provider.includes(:location).where("id <= ? and id >= ?", max, min)
		min = max

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	per_batch = 10000

	0.step(Profile::ProviderData.count, per_batch) do |offset|
		puts "Offset: #{offset} - #{Time.now}"
		profiles = Profile::ProviderData.order_by([:member_id, :asc]).limit(per_batch).skip(offset).only(:member_id, :babysitter_status, :nanny_status, :pet_care_status, :companion_care_status)
		max = 0
		member_ids = profiles.each{|p| max = p.member_id if p.member_id > max }
		providers = Account::Provider.includes(:location).where("id <= ?", max)
		puts providers.length
		providers_hash = {}

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Sitemap::Generator.instance.load :host => "www.sittercity.com" do

	literal '/find-a-sitter'
	literal '/babysitter-tips'
	literal '/babysitters/babysitters-rate-calculator'
	literal '/babysitters/child-care-definitions'
	literal '/babysitters/hiring-a-babysitter'
	literal '/babysitters/how-to-check-babysitters-references'
	literal '/babysitters/monitoring'
	literal '/nanny/nanny-taxes'

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public class Robot extends UntypedActor {
  private final String nombre;
  private ActorRef casillero;

  public Robot(String nombre) {
    this.nombre = nombre;

  }

  public void onReceive(Object message) throws Exception {

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desc "PostgreSQL database backups from your db to Amazon S3"
  task :store_latest_backup => :environment do
    begin
      S3_CONFIG = YAML.load_file("#{Rails.root.to_s}/config/S3.yml")[Rails.env]

      require 'right_aws'
      puts "[#{Time.now}] heroku:store started"

      backup_name = Time.now.strftime "%y-%m-%d_%H-%M-%S-pg-#{S3_CONFIG["heroku_app_name"]}.dump"