Downloaded 215 times
![def index
do_somthing
expires_in 10.minutes
end
header[“Cache-Control”] = “max-age=600”](https://image.slidesharecdn.com/rapiddevelopment-final-110326021512-phpapp02/75/Rapid-development-with-Rails-52-2048.jpg)
![• Common sense of DB tuning
• Avoid N+1 Query
using “bullet” plugin , :include => [:comment]](https://image.slidesharecdn.com/rapiddevelopment-final-110326021512-phpapp02/75/Rapid-development-with-Rails-55-2048.jpg)
Uploaded byYi-Ting Cheng
Rapid development with Rails
This document discusses rapid development using Ruby on Rails. It covers how Rails enables rapid development through conventions, community best practices, and continuous innovation. It also provides tips for scaling Rails applications, such as client-side performance tuning, database optimization, version control, automation, and modern architectural patterns like Arel, Rack, and Bundler. The overall message is that Rails can help deliver projects quickly while maintaining quality through its principles of DRY, agile development, and an active community of developers.
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Similar to Rapid development with Rails
Rapid development with Rails
- 1. Rapid Development with Rails
- 2. About me • / xdite • using Rails since 2007 • http://blog.xdite.net • xdite@techbang.com.tw
- 3. Lead Developer &Manager
- 4. • Rails • RapidDevelopment with Rails
- 5. Ruby on Rails •Since 2004, DHH from 37 signals • • DRY / Agile / Rapid / Cooooool !! • • Developer / / / ....
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- 10. Developer • PHP Developer • PHP Developer • Convention • Developer • Rails Developer
- 11. • • • • Developer
- 12. • • Rails 3> Django > Rails 2 > Zend > Symfony >>>>>> CakePHP • • 1M PV /day •
- 13. • • code • Test • Version Control ) •
- 14. Rapid Development? •5 CRUD • XXX •
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- 28. Rails • • • • => =>
- 29. • • • • do better • / solution
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- 34. Team Development • • + = Team • Opensource plugin + = Team
- 35.
- 36. Rails • Community-based bestpractices • Continuous revolution • contributed by top developers • cutting-edge technologies & ideas running on production • Online training courses provided by Google
- 37. Rails ....
- 39. { }
- 40. Rails • Community-based bestpractices • Continuous revolution • contributed by top developers • cutting-edge technologies & ideas running on production
- 41.
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- 44. Scaling Rails byDefault http://slidesha.re/dkJjOB • Client-side Performance Tuning
- 45. • Client-side PerformanceTuning • CDN
- 46.
- 47. • Client-side PerformanceTuning • CDN • Minimal HTTP Request
- 48. <%= javascript_include_tag :default,:cache => true %> <%=stylesheet_link_tag “main”, :cache => true %> http://asset.example.org/javascripts/all.js?1269316198 http://asset.example.org/stylesheets/all.css?1269316198
- 49. • Client-side PerformanceTuning • CDN • Minimal HTTP Request • Parallel Download
- 50. config.action_controller.asset_host = “asset%d.example.org” http://asset1.example.org/javascripts/all.js?1269316198 http://asset2.example.org/javascripts/all.js?1269316198 http://asset3.example.org/javascripts/all.js?1269316198 http://asset4.example.org/javascripts/all.js?1269316198
- 51. • Client-side PerformanceTuning • CDN • Minimal HTTP Request • Parallel Download • Cache Control
- 52. def index do_somthing expires_in 10.minutes end header[“Cache-Control”] = “max-age=600”
- 53. Scaling Rails byDefault http://slidesha.re/dkJjOB • Client-side Performance Tunning • CDN • Minimal HTTP Request • Parallel Download • Cache Control • ETags, Last Modified.....etc
- 54. • Common senseof DB tuning
- 55. • Common senseof DB tuning • Avoid N+1 Query using “bullet” plugin , :include => [:comment]
- 56. • Common senseof DB tuning • Avoid N+1 Query • Use Counter Cache belongs_to :post, :counter_cache => “true”
- 57. • Common senseof DB tuning • Avoid N+1 Query • Use Counter Cache • Use CONSTANT CONSTANT will cache in memory
- 58. • Common senseof DB tuning • Avoid N+1 Query • Use Counter Cache • Use CONSTANT • ADD INDEX EXPLAIN every query, avoid table scan using “rails_index” plugin
- 59. • Common senseof DB tuning • Avoid N+1 Query • Use Counter Cache • Use CONSTANT • ADD INDEX • SELECT ONLY NEED using “scrooge” plugin replace SELECT *
- 60. • Version ControlEverything
- 61. • Version ControlEverything • Git cheap branches bring cheap feature
- 62. • Version ControlEverything • Git • db migration version control db schema
- 63. • Version ControlEverything • Git • db migration • package management config version control package dependency
- 64.
- 65. • Version ControlEverything • Git • db migration • package management config • deployment using Capistrano to rollback back each build easily
- 66.
- 67. • Automate Everything • template authentication, permission control, facebook integration, pagination,admin panel, seach engine,job worker,mailer....etc. rails blog -m ~/template.rb rails blog -m http://gist.github.com/31208.txt rake rails:template LOCATION=~/template.rb
- 68. • Automate Everything • template • deployment * memcached, search engine, mailer, job worker, db migrate....etc. * 1 machine, 2+ machines, 10+ machines .... * Capistrano auto deployment + Deploy VMs....
- 69. • Code Readability • OOP / Design Pattern • MVC • Rails Best Practice http://bit.ly/fIX3NV • Writing Efficiently Ruby Code http://bit.ly/e0PpPF • Writing team own best practices http://bit.ly/fL6aGI
- 70. • Product Quality • refactor architecture • SEO tuning • UI tuning • Pageview tuning • Business tuning
- 71. • Modern Architecture • Arel • Rack • ActiveModel • Bundler
- 72. • Modern Architecture • Arel Relational Algebra for Ruby simplifies the generation complex of SQL queries adapts to various RDBMS systems
- 73. Rack Rack middleware http://bit.ly/aZiOIs • Modern Architecture • Rack
- 74. • Modern Architecture • ActiveModel Everybody loves ActiveRecord’s feature ActionPack helpers Module Naming, Conversion, AttributeMethods, Callback, Dirty, MassAssignment Security,Observing,Serialization,Translation
- 75. • Modern Architecture • Bundler 1 project have 10-20+ gem / plugins A require ‘Z’ v=0.2.1 B require ‘Z’ v=0.1.2 => conflict! some plugin only have trunk version, especially when we are in Rails 3.0.0 pre
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- 77. • Modern Architecture • Bundler Dependency Resolution Groups of Dependencies support git , branch , tag bundle lock
- 78. survey • Compass Ruby CSS , CSS module http://bit.ly/i2XLyZ • CoffeeScript Ruby JavaScript • TDD / BDD • plugin....
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- 82. Projects • 2010/04 :T • 2010/05 : event • 2010/08 : Digiphoto event • 2010/09 : event • 2010/10 : event • 2010/11 : T • 2010/12 : Digiphoto event • 2011/03 : R3
- 83.
- 85. ? ...
- 86. Rails ? ...
- 87. Rapid Development withfun and money • Deliver • http://bit.ly/eYfdba • ( ) || ( / ) http://bit.ly/dPk7od • •
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- 90. http://bit.ly/2UivVg ( Agricola ) Startup / Website
- 91.
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