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ActiveRecord cheat sheet / EXAMPLES

INSTALL 
=======  
$ gem install activerecord
in GEMFILE: gem ‘activerecord’

REQUIRE 
=======  
require ‘active_record’

jessieay

Monitor: Dell UltraSharp 27 Monitor - U2717D http://thewirecutter.com/reviews/best-27-inch-monitor/

Desk: Jarvis adjustable height bamboo top desk - I have the rectangle 36 x 27" size, but if I did it again I'd go bigger. https://www.fully.com/desks/desks-by-brand/jarvis-desks/jarvis-adjustable-height-desk-bamboo.html

Anti-fatigue mat: Costco https://www.costco.com/Smart-Step-Home-Anti-Fatigue-Comfort-Mat---Fleur-de-Lys-Series.product.100054719.html

Keyboard: Microsoft Sculpt Ergo

jessieay

sudo kill -9 `ps ax|grep 'coreaudio[a-z]' |awk '{print $1}'`

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Lessons learned are enumerated at the bottom for those who want the tl;dr

Background:

Lately, I've noticed that the Rails app I am working on does this funny little thing where it logs everyone out every time we deploy. Sorry, ppl!

Investigation

I wanted to fix this, and so I went looking into our auth system. Turns out, we store the user's id in a session var and find the user based on that value. WHAT? You might say. Well..it is totally OK because my friend Rails encrypts all session vars.

To prevent session hash tampering, a digest is calculated from the session with a server-side secret (secrets.secret_token) and inserted into the end of the cookie.

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require 'spec_helper;

describe FieldEntry, '#to_hash' do
  it 'returns the correct hash format' do
    field_entry = FieldEntry.new("room",["a","b,"c"]).to_hash
    expect(field_entry).to eq { name: 'room', values: [ "a", "b", "c"] }
  end
end
    

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$ heroku pgbackups:capture --expire --app APP_NAME

$ curl -o latest.dump `heroku pgbackups:url --app APP_NAME`

$ pg_restore --verbose --clean --no-acl --no-owner -h localhost -d DEVELOPMENT_DATABASE_NAME latest.dump

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require 'spec_helper'

describe RecommendationHelper, '#user_name' do
  it 'returns the name if the user has a name' do
    user = create(:user)
    user.stubs(:name).returns('Jane Doe')
    ask = create(:ask, user: user)

    user_name = user_name(ask)

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module Paperclip
  class Merge < Processor
    def initialize file, options = {}, attachment = nil
      super
      @format = File.extname(@file.path)
      @basename = File.basename(@file.path, @format)
      @files = attachment.instance.files
    end

    def make

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hjkl - move around
:#,#d - deletes between two lines, eg: :10,12d deletes lines 10 through 12
x - delete character
o - insert on next line
O - insert on preceding line
a - insert after cursor
i - go into insert mode
w - move to beginning of next word (also W for whitespace delimited word)
e - move to end of word (also E for whitespace delimited words)
b - move backward to start of word (also B)

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BEFORE: start trajectory story

* run specific tests wrote (eg: rspec spec/decorators/event_decorator_spec.rb:5)

rake

git status

git diff