Rails getting started

New proj

rails new {proj_name} --database=postgresql

Install missing gems (if not yet):

bundle install

Start:

rails s // rails server

Setup db:

rails db:setup

Rails console

rails c

Structure

• app: logic
  • assets: app js/css/img
  • controllers: app ctrl
  • jobs: bg jobs
• bin:
• config:
  • env
  • initializers: boot
• db
  • seed
  • migration
• public: static file, to use static file in web server..
• vender: libraries js/css

Example

rails g <module>

where:

g: generate

module:

- model
- controller
- scaffold

1. Model

rails g model Item name:string

Migration db:

rails db:migrate

to rollback latest

rails db:rollback

1. Controller

rails g controller Item index new edit

Routes:

resources :items, path: 'alias'

view generated routes:

/rails/info/routes

or

rails routes

Views