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#Rails

http://railstutorial.jp/

Rails

by YassLab

Slideshare

http://www.slideshare.net/yasulab/presentations

Cloud9

1. 2. URL 3.

https://ide.c9.io/yasulab/rails-tutorial

https://rails-tutorial-yasulab.c9users.io/

URL “Collaborate” → “Group Chat”

! :)

Ready?

!

13

#Rails

http://railstutorial.jp/

Rails

by YassLab

📝 email

DB

📨

✅ URL

❌ (NG )

⭕ (OK )

📝 email !

DB

📨

✅ URL

❌ (NG )

⭕(OK )

edit form

: assigns

@user

users_signup_test.rb

users_controller.rb

✅ 11 📨 🔒

•

✅ 12 📨 🔓

•

13 📮 🐤

•

14 👤 👤

•

1. Micropost (cf. 2, 4, 6 ) User Micropost − User has_many Microposts − Micropost belongs_to User

2. Micropost (cf. 7, 8, 9 )

3. Micropost (cf. 10 )

4. Micropost

13

Micropost

http://railstutorial.jp/

Rails

by YassLab

content Text :

- DB .

- ( ) .

Micropost

Micropost

Micropost

• Micropost $ rails generate model Micropost content:text user:references

Micropost

👆user_id:integer

👇

• Micropost $ rails generate model Micropost content:text user:references

Micropost

👇

•

• (Association)

Micropost

Micropost.find_by(user_id: user.id) user.microposts

Micropost.new(user_id: user.id) user.microposts.build

Micropost.create(user_id: user.id) user.microposts.create

Micropost.find_by(user_id: user.id, …) user.microposts.find_by(…)

: user.microposts.build(content: ‘1st post!’)

• Micropost default_scope -> { order(created_at: :desc) }👆 Micropost.first

• -> { … } Ruby Proc : p = -> { print ‘foo’ } ; p.call => ‘foo’

• User Micropost has_many :microposts, dependent: :destroy👆 User

Micropost

13

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Rails

by YassLab

Micropost

🤔

📝

• 🚃 💨 Microposts

• 🔧 ( ) Partial

• 🐤 Users show

• 🌱 seeds

• 🎨 CSS

• ✅

• 🔍

Micropost

13

http://railstutorial.jp/

Rails

by YassLab

• / URL

• Microposts

• logged_in_user

• Microposts

Micropost (TDD )

🔧 Home

🔧 error_messages object

✅ Home /

Micropost

👈 shared/user_info

👈 shared/micropost_form

🔧

👤 where

👥

( )

🔧 _micropost

🔧 [delete]

🔧 [delete] DELETE destroy

13

http://railstutorial.jp/

Rails

by YassLab

Micropost

[Upload image]

Micropost • CarrierWave

$ rails generate uploader Picture $ rails generate migration \ add_picture_to_microposts picture:string

• MiniMagick $ sudo apt-get update $ sudo apt-get install imagemagick --fix-missing

• Fog ( ) Amazon S3 Bucket

1. Micropost (cf. 2, 4, 6 ) User Micropost − User has_many Microposts − Micropost belongs_to User

2. Micropost (cf. 7, 8, 9 )

3. Micropost (cf. 10 )

4. Micropost

Rails http://railsguides.jp/testing.html

Rails http://railsguides.jp/configuring.html

Rails http://railsguides.jp/engines.html

( ) !

• :)

• : http://railstutorial.jp/seminars

• :) ,

.

• , .

13

#Rails

http://railstutorial.jp/

Rails

by YassLab