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create:

rails new react-js-amazon-app --webpack=react -d=postgresql

or if api only

rails new products_api --api -d=postgresql

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Topic

 @user

 Class hello
 

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Linux

• installation
• apt-get
• yum

SSH

• SSH, TCP, IP, Network
• default port is 22
• VPS: virtual private server

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• stripe info should never be saved and sent through rails server

• user fills out the form, send the credit card info to stripe server through ajax

• stripe server sends a one time token to rails server

• generate a migration

class AddStripeFieldsToDb < ActiveRecord::Migration
  def change
    add_column :pledges, :stripe_txn_id, :string

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Decorator

• object that inherits from that object that adds more functions, method, etc, to it

gem 'draper', '~> 1.3'

• generates the decorator for Campaign

bin/rails g decorator Campaign

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• generate commentable

bin/rails g model comment body:text commentable:references{polymorphic}

• which generates migration file

class CreateComments < ActiveRecord::Migration
  def change
    create_table :comments do |t|
      t.text :body

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• go to memory first, good for caching

brew install redis

• start server

redis-server
$ redis-server
78495:C 18 Mar 13:20:12.711 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf

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Active admin panel

gem 'activeadmin', github: "activeadmin/activeadmin"
gem "devise"

rails g active_admin:install

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Geocoding

gem 'geocoder'
gem 'gmaps4rails'
gem 'underscore-rails'

• application.js

//= require underscore

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Finite State Machine

gem 'aasm'

• add a aasm state field to the campaign model

g migration add_aasm_state_to_campaigns aasm_state:string:index

• migration file looks like this: