6

#Rails

Rails

by YassLab

http://railstutorial.jp/

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?

!

6

#Rails

http://railstutorial.jp/

Rails

by YassLab

1. Web − Home/About/Help/Signup − Bootstrap − Partial

2. Asset Pipeline Sass

3. (Integration Test) $ rails generate integration_test site_layout

4. $ rails generate controller Users new

Model-View-Controller (MVC)

Router

Controller

View

Model

DatabaseReq.

HTML

3

5

6

4

✨( …? 🤔)

🤔 ( ) 📝

=> … 💦

DB 📥

=> DB … 😭

Rails Active Record (AR) ….!?

=> DB 👌✨

=> Ruby DB 💎✨

Model-View-Controller (MVC)

Router

Controller

View

Model

DatabaseReq.

HTML

…!!

AR !

Y^Y^Y^Y^Y^Y^Y^Y^Y^Y

1. $ rails generate model User name:string email:string

2. ? ?

3. has_secure_passoword

6

6.1 User

http://railstutorial.jp/

Rails

by YassLab

• User rails generate model User name:string email:string

• db/migrate/[timestamp]_create_users.rb

• (bundle exec rake db:migrate)

• (bundle exec rake db:rollback)

• db/development.sqlite3

• rails console

User

6

6.2

http://railstutorial.jp/

Rails

by YassLab

• (validate) :

• name ? ( )

• email ? ( )

• email ?

• : / / /

• User

: Regular Expression

528

Y^Y^Y^Y^Y

Rubular: http://rubular.com/

email/\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

(Unique)

(Unique)

1.

sample_app

tom@example.com

2. ?

DB

tom@example.com

sample_app

3. ?

4. email 5. email

6.

(Unique)

1.

sample_app

tom@example.com

2. ?

DB

tom@example.com

sample_app

3. ?

4. email 6. email

5.

!

7. email

><

6

6.3

http://railstutorial.jp/

Rails

by YassLab

• password_digest

• password_digest

• Rails has_secure_password DB

( DB )

• authenticate

•

DB

bcrypt

foobarhogehoge

$10$2FIEggLq.BFq7J17N7a9C.mTBgKeJ9uWanLq…

$2a$10$Kc/EY79ieCTBVYFktWkUKOhhY0kItaYPAyMsT23rvAR…

password_digest

• Test→Commit→Merge→Push 💨

…

⚠ Heroku push !

🔧 DB

• Heroku migrate console 💻 ☁$ heroku run rails db:migrate $ heroku run console --sandbox

✨

1. $ rails generate model User name:string email:string

2. ? ?

3. has_secure_passoword

Model-View-Controller (MVC)

Router

Controller

View

Model

DatabaseReq.

HTML

3

5

6

4

Active Record http://railsguides.jp/active_record_basics.html

Active Record http://railsguides.jp/active_record_migrations.html

Active Record http://railsguides.jp/active_record_validations.html

7 108~9

DB

URL

( )

(OK )

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

2. Micropost (cf. 7~8 )

3. Micropost (cf. 9 )

4. Micropost

1. Relationship

• User

• Relationship followed/follower

• follow

2. Ajax follow/unfollow UI

3. follow feed

4. / /

• :)

• : http://railstutorial.jp/seminars

• :) ,

.

• , .

6

#Rails

Rails

by YassLab

http://railstutorial.jp/