Learning Rail

This is a note taken when I try to learn Ruby on Rails through building a small blog system following this guide. I then used Bootstrap to beautify pages and deploy the website on Heroku.

Here is the link.
Test account:

• username: dhh

• password: secret

  1. Install rail on windows:
  

  http://installrails.com/
  dependency:

• ruby > 2.26
• sqlite3

2. Create a blog system:

2.1 article CRUD

• rail routing:
  http://guides.rubyonrails.org/routing.html
• form_with in form helper:
  http://api.rubyonrails.org/v5.2.0/classes/ActionView/Helpers/FormHelper.html#method-i-form_with
• form_with resource oriented style:
  http://api.rubyonrails.org/v5.2.0/classes/ActionView/Helpers/FormHelper.html#method-i-form_with-label-Resource-oriented+style
• strong parameters(come with rails security precatution):
  http://guides.rubyonrails.org/action_controller_overview.html#strong-parameters
• active record migration:
  http://guides.rubyonrails.org/active_record_migrations.html
• active record validation:
  http://guides.rubyonrails.org/active_record_validations.html
• layout and rendering in Rails(partials, etc..)
  http://guides.rubyonrails.org/layouts_and_rendering.html
• JS in Rails:
  http://guides.rubyonrails.org/working_with_javascript_in_rails.html

2.2 comment CRUD

• Active Record Association:
  http://guides.rubyonrails.org/association_basics.html

2.3 Authentication:

3. Layout with Bootstrap

• How to introduct Bootstrap in our blog system?
  Add the following line to Gemfile, and then run bundle install:

  gem 'bootstrap-sass', '3.3.7'

• The asset pipeline
  http://edgeguides.rubyonrails.org/asset_pipeline.html

• Bootstrap doc
  https://getbootstrap.com/docs/4.1/getting-started/introduction/
  Basically we just add class to elements to change their format

4. Heroku Deploy

https://devcenter.heroku.com/articles/getting-started-with-rails5#database
In both Gemfile and config/database.yml, change sqlite3 to postresql

5. Some documentation:

• Rails 5.1.6 Guide
  http://guides.rubyonrails.org/v5.1/
• Nice book to learn Ruby:
  https://www.railstutorial.org/book/frontmatter
• Add custom class to form_with:
  https://stackoverflow.com/questions/5315967/add-a-css-class-to-f-submit