RoR resources

=== TODO ================================
--- webapp/server performance ---
https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Facavalin.mooo.com&tab=mobile

immagini:
https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/image-optimization?hl=it

https://www.google.it/search?q=website+test+google&oq=website+test+google&aqs=chrome..69i57.7730j0j4&sourceid=chrome-mobile&ie=UTF-8

-- layout --
http://materializecss.com/
http://learn.shayhowe.com/advanced-html-css/responsive-web-design/
fonts: https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/webfont-optimization?hl=it

--- js charts ---
https://google-developers.appspot.com/chart/interactive/docs/
D3js
altro...?

--- certificati ssl gratis? ---
https://letsencrypt.org/

--- chrome push notifications example ---
https://storage-cdn.realtime.co/chrome-push/index.html
http://stackoverflow.com/questions/2271156/chrome-desktop-notification-example

--- process monitoring ---
https://mmonit.com

=== DONE ================================
--- modelli nested ---
https://coderwall.com/p/2tnpfa/easily-namespace-your-rails-models
http://stackoverflow.com/questions/17446716/rails-how-to-properly-move-models-to-a-namespace
http://stackoverflow.com/questions/5852626/handling-namespace-models-classes-in-namespace
http://blog.makandra.com/2014/12/organizing-large-rails-projects-with-namespaces/

--- multi db ---
sqlite3 attach command:
  # /config/environment.rb -- attach di un database separato
  # ActiveRecord::Base.connection.execute %Q|ATTACH DATABASE '#{Rails.root}/db/#{Rails.env}_nome.sqlite3' AS nome|

https://www.google.it/search?q=rails+4+multiple+databases&oq=rails+4+mult&aqs=chrome.1.69i57j0l3.7740j0j4&client=tablet-android-lenovo&sourceid=chrome-mobile&espv=1&ie=UTF-8
http://stackoverflow.com/questions/17311199/connecting-to-multiple-databases-in-ruby-on-rails
http://technology.customink.com/blog/2015/06/22/rails-multi-database-best-practices-roundup/

--- gestione utenti ---
https://github.com/plataformatec/devise

--- time parsing ---
https://github.com/mojombo/chronic
Chronic.parse('10th day of next month')

--- mail ---
http://guides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration
http://api.rubyonrails.org/classes/ActionMailer/Base.html

--- crontab ---
http://www.gotealeaf.com/blog/cron-jobs-and-rails
https://github.com/javan/whenever
http://stackoverflow.com/questions/1070231/rails-cron-with-whenever-setting-the-environment

* runner "...", output: "#{path}/log/out.log"/nil
* whenever -i # installa/aggiorna cronjobs

--- deploy (nginx + thin cluster) ---
http://nginx.org/en/docs/
http://code.macournoyer.com/thin/usage/

https://www.digitalocean.com/community/tutorials/how-to-optimize-nginx-configuration

examples:
  https://www.nginx.com/resources/wiki/start/topics/examples/full/
  http://unicorn.bogomips.org/examples/nginx.conf  (commented)

altro:
  http://blog.mohitkanwal.com/blog/2013/04/10/deploying-rails-on-nginx-and-thin/
  http://kvz.io/blog/2010/09/21/ruby-with-nginx-on-ubuntu-lucid/

http://www.perfectline.co/blog/2011/02/optimizing-ruby-on-rails-application-with-nodejs/

--- gzip ---
https://www.google.it/search?q=rails+gzip&oq=rails+gzip&aqs=chrome..69i57j0l3.8227j1j4&sourceid=chrome-mobile&ie=UTF-8#q=rails+nginx+gzip

https://richonrails.com/articles/enabling-compression-for-nginx

https://gist.github.com/kucaahbe/3017055

http://serverfault.com/questions/571733/nginx-gzip-static-why-are-the-non-compressed-files-required

--- nsginx rails assets ---
http://dennisreimann.de/blog/configuring-nginx-for-the-asset-pipeline/
http://guides.rubyonrails.org/asset_pipeline.html#in-production

jqui: https://bibwild.wordpress.com/2011/12/08/jquery-ui-css-and-images-and-rails-asset-pipeline/

https://mattbrictson.com/gzipped-assets-nginx-rails-42

--- css spinner ---
http://tobiasahlin.com/spinkit/

--- blocking resources async load ---
http://www.giftofspeed.com/defer-loading-css/ (Google's PageSpeed)
https://github.com/filamentgroup/loadCSS
https://github.com/filamentgroup/loadJS
http://www.w3schools.com/tags/tag_script.asp (defer)

--- nginx ssl setup ---
sudo openssl req -x509 -nodes -sha256 -days 365 -newkey rsa:2048 -keyout ac.key -out ac.crt

http://nginx.org/en/docs/http/configuring_https_servers.html#single_http_https_server

http://stackoverflow.com/questions/25116103/how-do-i-setup-ssl-on-a-rails-4-app-nginx-passenger

--- nginx catch-all domain ---
http://stackoverflow.com/questions/9824328/why-is-nginx-responding-to-any-domain-name

--- rails ssl ---
https://github.com/plataformatec/devise/wiki/How-To:-Use-SSL-(HTTPS)

http://www.eq8.eu/blogs/14-config-force_ssl-is-different-than-controller-force_ssl

http://stackoverflow.com/questions/9527158/how-should-i-go-about-making-all-devise-paths-use-https
https://github.com/mobalean/devise_ssl_session_verifiable

http://guides.rubyonrails.org/security.html
http://api.rubyonrails.org/classes/ActionController/ForceSSL/ClassMethods.html

--- app security ---
http://learn.onemonth.com/defensive-hacking-how-to-prevent-a-brute-force-attack

=> Devise lockable, recapcha?, rack attack, omniauth?
http://rubydoc.info/github/plataformatec/devise/master/Devise/Models/Lockable

https://github.com/plataformatec/devise/wiki/How-To:-Use-Recaptcha-with-Devise

https://github.com/kickstarter/rack-attack  # throttling app requests

--- i18n ---
* traduci devise e activerecord errors/tables/fields:
http://guides.rubyonrails.org/i18n.html
  http://guides.rubyonrails.org/i18n.html#organization-of-locale-files
  http://guides.rubyonrails.org/i18n.html#translations-for-active-record-models

* traduzioni:
  https://github.com/svenfuchs/rails-i18n/blob/master/rails/locale/en.yml
  https://github.com/svenfuchs/rails-i18n/blob/master/rails/locale/it.yml
  https://github.com/tigrish/devise-i18n/blob/master/rails/locales/it.yml

* locale in path:
https://github.com/svenfuchs/routing-filter/

# config/routes.rb
filters :locale # prima di tutto

# app/controllers/application_controller.rb
def default_url_options(options = {})
  { locale: I18n.locale }.merge options
end

before_action :set_locale
def set_locale
  I18n.locale = I18n.available_locales.map(&:to_s).include?(params[:locale]) ? \
    params[:locale].to_sym :  I18n.default_locale
end # set_locale -------------------------------------------------------------

# config/initializers/routing_filter.rb
RoutingFilter::Locale.include_default_locale = false

--- js/ccs parallel dl + defer/ordered execution ---
https://code.google.com/p/chromium/issues/detail?id=312327

Http header: Link: <jquery.js>; rel=prefetch

# wrap sprockets "require"
http://stackoverflow.com/questions/10292631/wrap-a-few-asset-requires-in-a-javascript-closure

# modern browser async-download and ordered-execution (...l'ordine non viene rispettato!)
http://www.html5rocks.com/en/tutorials/speed/script-loading/
==> tutto nell'head:
<link rel="subresource" href="//other-domain.com/1.js">
<link rel="subresource" href="2.js">
<script>
[ '//other-domain.com/1.js',  '2.js'].forEach(function(src) {
  var script = document.createElement('script');
  script.src = src; script.async = false; document.head.appendChild(script);
});</script>

# altre alternative:
http://www.javascriptoo.com/defer-js/readme # vedi tabella confronti
https://github.com/wessman/defer.js
https://github.com/headjs/headjs
https://github.com/ded/script.js -- http://www.dustindiaz.com/scriptjs/
http://github.com/getify/LABjs -- http://labjs.com/

# vanilla js xhr+eval:
http://stackoverflow.com/questions/10834511/load-javascript-sequentially-from-javascript-code -- http://stackoverflow.com/a/10835093

# async + blob/data-uri
https://developer.mozilla.org/en-US/docs/Games/Techniques/Async_scripts

--- nginx limits/restrictions --------------------------------------------------
https://www.nginx.com/resources/admin-guide/restricting-access/

--- manifest + favicon ---------------------------------------------------------
https://developer.chrome.com/multidevice/android/installtohomescreen
http://realfavicongenerator.net/
http://mygimptutorial.com/web-20-button-with-reflection

--- turbolinks -----------------------------------------------------------------
http://brandonhilkert.com/blog/organizing-javascript-in-rails-application-with-turbolinks/

--- android appcache ---
- solo su /index + rake x creare il manifest con gli assets
http://alistapart.com/article/application-cache-is-a-douchebag
http://docs.webplatform.org/wiki/apis/appcache/ApplicationCache
http://stackoverflow.com/questions/25496027/how-to-create-a-rails-4-offline-webapp

- evento updateready => ricarica app
http://www.html5rocks.com/en/tutorials/appcache/beginner/
http://blog.christian-heindel.de/2011/10/25/debugging-html5-offline-web-applications/

- manifest.appcache solo per i file correnti: vedi sprockets generated json manifest

NB: su firefox premi shift+f2 => appcache commands; su chrome vedi appcache internals