Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Ruby on Rails (the cool parts)

Avatar for Baylor Rae' Baylor Rae'
January 08, 2013
Programming
2
120

Ruby on Rails (the cool parts)

This is a presentation I gave that goes over "some" of the cool parts of Ruby on Rails.

Avatar for Baylor Rae'

Baylor Rae'

January 08, 2013
Tweet

Other Decks in Programming

See All in Programming
Ruby×iOSアプリ開発 ~共に歩んだエコシステムの物語~
Avatar for Tomoki Kobayashi temoki
0
180
AIレビュアーをスケールさせるには / Scaling AI Reviewers
Avatar for technuma technuma
2
240
テストカバレッジ100%を10年続けて得られた学びと品質
Avatar for もっち mottyzzz
2
440
[FEConf 2025] 모노레포 절망편, 14개 레포로 부활하기까지 걸린 1년
Avatar for Jonghyuk Max Kim mmmaxkim
0
1.4k
Flutter with Dart MCP: All You Need - 박제창 2025 I/O Extended Busan
Avatar for JaiChangPark itsmedreamwalker
0
110
Microsoft Orleans, Daprのアクターモデルを使い効率的に開発、デプロイを行うためのSekibanの試行錯誤 / Sekiban: Exploring Efficient Development and Deployment with Microsoft Orleans and Dapr Actor Models
Avatar for Tomohisa Takaoka tomohisa
0
230
Kiroで始めるAI-DLC
Avatar for kaonash kaonash
2
520
さようなら Date。 ようこそTemporal！ 3年間先行利用して得られた知見の共有
Avatar for 8-beeeaaat!!! 8beeeaaat
1
410
AIエージェント開発、DevOps and LLMOps
Avatar for Kento.Yamada ymd65536
1
380
開発チーム・開発組織の設計改善スキルの向上
Avatar for 増田 亨 masuda220
PRO
18
9.7k
プロポーザル駆動学習 / Proposal-Driven Learning
Avatar for mackey0225 mackey0225
2
360
実用的なGOCACHEPROG実装をするために / golang.tokyo #40
Avatar for mazrean mazrean
1
140

Featured

See All Featured
Building a Scalable Design System with Sketch
Avatar for Laura Van Doore lauravandoore
462
33k
The Language of Interfaces
Avatar for Des Traynor destraynor
160
25k
The Art of Delivering Value - GDevCon NA Keynote
Avatar for David Neal reverentgeek
15
1.6k
Designing for humans not robots
Avatar for Tammie Lister tammielis
253
25k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
656
61k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
139
34k
Become a Pro
Avatar for Speaker Deck speakerdeck
PRO
29
5.5k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
Avatar for Joe Casabona jcasabona
33
2.4k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
Avatar for Michelle Schulp Hunt marktimemedia
31
2.5k
Scaling GitHub
Avatar for Zach Holman holman
463
140k
Agile that works and the tools we love
Avatar for Rasmus Luckow-Nielsen rasmusluckow
330
21k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
54
11k

Transcript

  1. 3VCZPO3BJMT the cool parts ( )

  2. 8IBU`T$PPM "CPVU3BJMT %BUBCBTF.BOBHFNFOU 5IF"TTFU1JQFMJOF #VJMEJOH8FC'PSNT

  3. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations %POFXJUI3BJMT.JHSBUJPOT w"MMDIBOHFTBSFDSFBUFEJOB3VCZpMF w%BUBCBTF"HOPTUJD w4ZODISPOJ[F&OWJSPONFOUT

  4. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rails g model Product title:string description:text price:decimal

    db/migrate/2013010801384833_create_products.rb

  5. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rails g model Product title:string description:text price:decimal

    db/migrate/2013010801384833_create_products.rb

  6. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations class CreateProducts < ActiveRecord::Migration def up create_table :products

    do |t| t.string :title t.text :description t.decimal :price t.timestamps end end def down drop_table :products end end

  7. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations class CreateProducts < ActiveRecord::Migration def change create_table :products

    do |t| t.string :title t.text :description t.decimal :price t.timestamps end end end

  8. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations 1. add_column 2. add_index 3. change_column 4. change_table

    5. create_table 6. drop_table 7. remove_column 8. remove_index 9. rename_column

  9. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations 1. add_column :table_name, :column_name, :type 2. add_index, :table_name,

    :column_name 3. change_column :table_name, :column_name, :type 4. change_table :table_name, options = {} 5. create_table :table_name, options = {} 6. drop_table :table_name 7. remove_column :table_name, *columns 8. remove_index :table_name, *columns 9. rename_column :table_name, :old_name, :new_name

  10. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rails g migration add_category_id_to_products category_id:integer db/migrate/2013010801448284_add_category_id_to_products.rb

  11. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations class AddCategoryIdToProducts < ActiveRecord::Migration def change add_column :products,

    :category_id, :integer end end

  12. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rake db:migrate

  13. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rake db:migrate == CreateProducts: migrating ================================================= --

    create_table(:products) -> 0.0055s == CreateProducts: migrated (0.0056s) ======================================== == AddCategoryIdToProducts: migrating ======================================== -- add_column(:products, :category_id, :integer) -> 0.0015s == AddCategoryIdToProducts: migrated (0.0016s) ===============================

  14. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations db/schema.rb ActiveRecord::Schema.define(:version => 2013010801448284) do create_table "products", :force

    => true do |t| t.string "title" t.text "description" t.decimal "price" t.datetime "created_at", :null => false t.datetime "updated_at", :null => false t.integer "category_id" end end

  15. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations $ rake db:schema:load

  16. %BUBCBTF.BOBHFNFOU http://bit.ly/rails-migrations %POFXJUI3BJMT.JHSBUJPOT w"MMDIBOHFTBSFDSFBUFEJOB3VCZpMF w%BUBCBTF"HOPTUJD w4ZODISPOJ[F&OWJSPONFOUT

  17. w1VMMTpMFTGSPNNVMUJQMFMPDBUJPOTJOUPPOF w3FNPWFTBl+VOL%SBXFSzPG+BWBTDSJQUpMFT w$PNQJMFTBOE$PNQSFTTFTUIFpMFT w"EETBCFUUFSDBDIFJOHTZTUFN 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline

  18. 5IF"TTFU1JQFMJOF javascripts !"" bootstrap-dropdown.js !"" bootstrap-modal.js !"" bootstrap-popover.js !"" bootstrap-typeahead.js

    !"" content-tabs.js !"" lightbox.js !"" jquery-ui.js !"" jquery-ui.progress-bar.js !"" jquery.anything-slider.js !"" navigation-tabs.js #"" site.js http://bit.ly/asset-pipeline

  19. 5IF"TTFU1JQFMJOF OFVTSBNCMJOHTCMPHTQPUDPN http://bit.ly/asset-pipeline

  20. 5IF"TTFU1JQFMJOF javascripts !"" bootstrap-dropdown.js !"" bootstrap-modal.js !"" bootstrap-popover.js !"" bootstrap-typeahead.js

    !"" content-tabs.js !"" lightbox.js !"" jquery-ui.js !"" jquery-ui.progress-bar.js !"" jquery.anything-slider.js !"" navigation-tabs.js #"" site.js http://bit.ly/asset-pipeline

  21. . !"" app $ #"" assets $ !"" javascripts $

    #"" stylesheets !"" lib $ #"" assets $ !"" javascripts $ #"" stylesheets #"" vendor #"" assets !"" javascripts #"" stylesheets 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline

  22. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline app/assets/js lib/assets/js vendor/assets/js !"" content-tabs.js #"" navigation-tabs.js !""

    bootstrap $ !"" dropdown.js $ !"" modal.js $ !"" popover.js $ #"" typeahead.js !"" bootstrap.js !"" lightbox.js !"" jquery-ui.js !"" jquery-ui.progress-bar.js #"" jquery.anything-slider.js #"" site.js

  23. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline app/assets/js lib/assets/js vendor/assets/js !"" content-tabs.js #"" navigation-tabs.js !""

    bootstrap $ !"" dropdown.js $ !"" modal.js $ !"" popover.js $ #"" typeahead.js !"" bootstrap.js !"" lightbox.js !"" jquery-ui.js !"" jquery-ui.progress-bar.js #"" jquery.anything-slider.js #"" site.js

  24. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline //= require bootstrap/dropdown //= require bootstrap/modal //= require

    bootstrap/popover //= require bootstrap/typeahead CPPUTUSBQKT

  25. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline . #"" app #"" assets !"" javascripts/ #""

    stylesheets/ application.js application.css

  26. . #"" app #"" assets !"" javascripts/ #"" stylesheets/ 5IF"TTFU1JQFMJOF

    application.js application.css http://bit.ly/asset-pipeline

  27. 5IF"TTFU1JQFMJOF //= require jquery //= require jquery_ujs //= require bootstrap

    //= require_tree . /* *= require jquery-ui/datepicker *= require_self *= require_tree . */ application.js application.css http://bit.ly/asset-pipeline

  28. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline <%= javascript_include_tag "application" %>

  29. 5IF"TTFU1JQFMJOF

  30. 5IF"TTFU1JQFMJOF $ rake assets:precompile http://bit.ly/asset-pipeline

  31. 5IF"TTFU1JQFMJOF $ rake assets:precompile . #"" app #"" assets !""

    javascripts/application.js #"" stylesheets/application.css http://bit.ly/asset-pipeline

  32. 5IF"TTFU1JQFMJOF public #"" assets !"" application-1b13569e9620782f423d4cd3ce931750.css !"" application-1b13569e9620782f423d4cd3ce931750.css.gz !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js

    !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js.gz !"" application.css !"" application.css.gz !"" application.js !"" application.js.gz !"" manifest.yml !"" rails-a3386665c05a2d82f711a4aaa72d247c.png #"" rails.png http://bit.ly/asset-pipeline

  33. 5IF"TTFU1JQFMJOF public #"" assets !"" application-1b13569e9620782f423d4cd3ce931750.css !"" application-1b13569e9620782f423d4cd3ce931750.css.gz !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js

    !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js.gz !"" application.css !"" application.css.gz !"" application.js !"" application.js.gz !"" manifest.yml !"" rails-a3386665c05a2d82f711a4aaa72d247c.png #"" rails.png http://bit.ly/asset-pipeline

  34. 5IF"TTFU1JQFMJOF public #"" assets !"" application-1b13569e9620782f423d4cd3ce931750.css !"" application-1b13569e9620782f423d4cd3ce931750.css.gz !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js

    !"" application-32ed6ebaba49211fc69e08f40c7b97c4.js.gz !"" application.css !"" application.css.gz !"" application.js !"" application.js.gz !"" manifest.yml !"" rails-a3386665c05a2d82f711a4aaa72d247c.png #"" rails.png http://bit.ly/asset-pipeline

  35. 5IF"TTFU1JQFMJOF <%= javascript_include_tag "application" %> <script src="/assets/application-32ed6eb...c7b97c4.js"></script> http://bit.ly/asset-pipeline

  36. 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline

  37. 5IF"TTFU1JQFMJOF $ rake assets:precompile http://bit.ly/asset-pipeline

  38. w1VMMTpMFTGSPNNVMUJQMFMPDBUJPOTJOUPPOF w3FNPWFTBl+VOL%SBXFSzPG+BWBTDSJQUpMFT w$PNQJMFTBOE$PNQSFTTFTUIFpMFT w"EETBCFUUFSDBDIFJOHTZTUFN 5IF"TTFU1JQFMJOF http://bit.ly/asset-pipeline

  39. w$POWFOUJPOPWFS$POpHVSBUJPO w*OUFHSBUFTOJDFMZXJUI"DUJWF3FDPSE w#VJMEDPNQMFYGPSNT #VJMEJOH8FC'PSNT http://bit.ly/rails-forms

  40. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms Product.new({ :title => "Cheese Crackers", :price => 3.99

    })

  41. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms Product.new(:title => "Cheese Crackers", :price => 3.99)

  42. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms <form action="/products" method="post"> <!-- title --> <label for="title">Title</label>

    <input type="text" name="title" id="title" /> <!-- price --> <label for="price">Price</label> <input type="number" name="price" id="price" /> <!-- doo wop --> <input type="submit">Create Product</input> </form>

  43. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms <%= form_for Product.new do |f| %> <!-- title

    --> <%= f.label :title %> <%= f.text_field :title %> <!-- price --> <%= f.label :price %> <%= f.number_field :price %> <!-- doo wop --> <%= f.submit %> <% end %>

  44. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms <!-- title --> <label for="product_title">Title</label> <input type="text" name="product[title]"

    id="product_title" /> <!-- price --> <label for="product_price">Price</label> <input type="number" name="product[price]" id="product_price" />

  45. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms <!-- title --> <label for="product_title">Title</label> <input type="text" name="product[title]"

    id="product_title" /> <!-- price --> <label for="product_price">Price</label> <input type="number" name="product[price]" id="product_price" />

  46. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms params[:product]

  47. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms params[:product] # {:title=>"My Product", :price=>12.5}

  48. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms params[:product][:title] # "My Product" params[:product] # {:title=>"My Product",

    :price=>12.5}

  49. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms Product.new(:title => "My Product", :price => 12.5)

  50. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms # POST /products def create @product = Product.new(params[:product])

    end

  51. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms lTUSPOHQBSBNFUFSTz github.com/rails/strong_parameters

  52. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms class ProductsController < ApplicationController # POST /products def

    create @products = Product.new(product_params) end private def product_params params.require(:product).permit(:title, :price) end end

  53. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms

  54. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms # product_variation.rb class ProductVariation belongs_to :product end

  55. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms # product.rb class Product has_many :product_variations end

  56. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms <%= form_for @product do |f| %> <ul> <%=

    f.fields_for :product_variations do |builder| %> <li> <%= builder.label :title %> <%= builder.text_field :title %> <br /> <%= builder.label :price, "$" %> <%= builder.number_field :price %> </li> <% end %> </ul> <% end %>

  57. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms

  58. #VJMEJOH8FC'PSNT http://bit.ly/rails-forms # product.rb class Product has_many :product_variations accepts_nested_attributes_for :product_variations,

    :reject_if => lambda { |a| a[:title].blank? } end

  59. w$POWFOUJPOPWFS$POpHVSBUJPO w*OUFHSBUFTOJDFMZXJUI"DUJWF3FDPSE w#VJMEDPNQMFYGPSNT #VJMEJOH8FC'PSNT http://bit.ly/rails-forms