Rails初心者〜構築からMVC開発〜 ref: http://qiita.com/fk_2000/items/28a1564150eabfd6468b

file0.txt

rubyuser01:~/workspace $ ruby -v
ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-linux]

file1.txt

rubyuser01:~/workspace $ rails -v
bash: rails: command not found

file10.txt

rubyuser01:~/workspace/demo $ rails generate controller top index

file11.txt

rubyuser01:~/workspace/demo $ ls -l app/controllers/top_controller.rb 
-rw-r--r-- 1 ubuntu ubuntu 66 Aug 30 04:12 app/controllers/top_controller.rb

file12.txt

rubyuser01:~/workspace/demo $ ls -l app/views/top/index.html.erb 
-rw-r--r-- 1 ubuntu ubuntu 66 Aug 30 04:12 app/views/top/index.html.erb

file13.txt

rubyuser01:~/workspace/demo $ cat app/controllers/top_controller.rb 
class TopController < ApplicationController
  def index
  end
end

file14.txt

rubyuser01:~/workspace/demo $ cat app/views/top/index.html.erb 
<h1>Top#index</h1>
<p>Find me in app/views/top/index.html.erb</p>

file15.txt

rubyuser01:~/workspace/demo $ vi config/routes.rb 

file16.diff

Rails.application.routes.draw do
-  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
+  root "top#index"
end

file17.txt

rubyuser01:~/workspace/demo $ cat config/routes.rb
Rails.application.routes.draw do
  root "top#index"
end
rubyuser01:~/workspace/demo $ 

file18.txt

- →app/views/top/index.html.erbの内容を編集して、ブラウザの更新を行うと即座に反映されることを確認
- <p>〜</p>の文言に、「◆」を追加

file19.txt

- →config/routes.rbの「root "top#index”」を「root "top#index2”」に編集して、ブラウザの更新を行うと即座に反映されエラーとなる。

file2.txt

rubyuser01:~/workspace $ cat /etc/os-release
NAME="Ubuntu"
VERSION="14.04.3 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.3 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"

file20.txt

- →Controllerのapp/controllers/top_controller.rb のAction（メソッド）「index」を「index2」に編集して、さらにエラーとなる※

file3.txt

rubyuser01:~/workspace $ gem -v
2.5.1

file4.txt

rubyuser01:~/workspace $ gem install rails
Fetching~
Successfully~
:
37 gems installed

file5.txt

rubyuser01:~/workspace $ rails -v
Rails 5.0.0.1

file6.txt

rubyuser01:~/workspace $ rails new demo
      create
      create  README.md
      create  Rakefile
      create  config.ru
      create  .gitignore
      create  Gemfile
          :
Installing web-console 3.3.1
Using rails 5.0.0.1
Installing sass-rails 5.0.6
Bundle complete! 15 Gemfile dependencies, 63 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
         run  bundle exec spring binstub --all
* bin/rake: spring inserted
* bin/rails: spring inserted
rubyuser01:~/workspace $

file7.txt

rubyuser01:~/workspace $ ls -ltr
total 8
-rw-rw-r--  1 ubuntu ubuntu  948 May  2 10:49 README.md
drwxr-xr-x 12 ubuntu ubuntu 4096 Aug 30 02:12 demo/

file8.txt

rubyuser01:~/workspace $ cd demo/
rubyuser01:~/workspace/demo $ ls -ltr
total 64
-rw-r--r--  1 ubuntu ubuntu  130 Aug 30 02:10 config.ru
-rw-r--r--  1 ubuntu ubuntu  227 Aug 30 02:10 Rakefile
-rw-r--r--  1 ubuntu ubuntu  374 Aug 30 02:10 README.md
-rw-r--r--  1 ubuntu ubuntu 1729 Aug 30 02:10 Gemfile
drwxr-xr-x 10 ubuntu ubuntu 4096 Aug 30 02:10 app/
drwxr-xr-x  2 ubuntu ubuntu 4096 Aug 30 02:10 db/
drwxr-xr-x  5 ubuntu ubuntu 4096 Aug 30 02:10 config/
drwxr-xr-x  2 ubuntu ubuntu 4096 Aug 30 02:10 log/
drwxr-xr-x  4 ubuntu ubuntu 4096 Aug 30 02:10 lib/
drwxr-xr-x  2 ubuntu ubuntu 4096 Aug 30 02:10 public/
drwxr-xr-x  8 ubuntu ubuntu 4096 Aug 30 02:10 test/
drwxr-xr-x  3 ubuntu ubuntu 4096 Aug 30 02:10 vendor/
drwxr-xr-x  3 ubuntu ubuntu 4096 Aug 30 02:10 tmp/
-rw-r--r--  1 ubuntu ubuntu 4343 Aug 30 02:12 Gemfile.lock
drwxr-xr-x  2 ubuntu ubuntu 4096 Aug 30 02:12 bin/
rubyuser01:~/workspace/demo $

file9.txt

rubyuser01:~/workspace/demo $ rails server -b 0.0.0.0 -p 8080
=> Booting Puma
=> Rails 5.0.0.1 application starting in development on http://0.0.0.0:8080
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.6.0 (ruby 2.3.0-p0), codename: Sleepy Sunday Serenity
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://0.0.0.0:8080
Use Ctrl-C to stop