[Ruby On Rails] Rails에 MySQL 연동하기

* 참고링크: https://www.youtube.com/watch?v=6Yn2MhHYlyE

1. Gem 추가

Gemfile에 mysql2 젬 추가하기

- apt-get 업데이트

$ sudo apt-get update
$ apt-get install libmysqlclient-dev

- gem 추가 및 install

gem 'mysql2', '~> 0.5.2'

$ bundle install

2. config/database.yml 수정하기

default: &default
  adapter: mysql2
  pool: 5
  timeout: 5000
  username: root
  password: newlife4829
  host: 127.0.0.1
  port: 3306

development:
  <<: *default
  database: rails_test

test:
  <<: *default
  database: rails_test

production:
  <<: *default
  database: rails_test