mikedao

app/controllers/admin/base_controller.rb
9: Redundant: won't current_user.admin? return nil if current_user is nil?

app/controllers/admin/items_controller.rb
Use strong params here?

app/controllers/admin/orders_controller.rb
Strong params

application_controller.rb

mikedao

Software Disasters

For us, the worst that can happen when we write bad software is our app doesn't run. Maybe our website shows an error message.

However, in the real world, it can get a lot worse.

We're looking at two real world examples today where bad software, had really big real world implications

Ariane 5

mikedao

class Cat

  def initialize
  end

  def to_s
    return "This is a string"
  end
end

mikedao

### Keybase proof

I hereby claim:

  * I am mikedao on github.
  * I am mikedao (https://keybase.io/mikedao) on keybase.
  * I have a public key whose fingerprint is 97F7 199D E050 F2A3 0599  81AA DDB1 3C1B A5AD 4AFD

To claim this, I am signing this object:

mikedao

Finite State Machines

-Mythical Creatures
  Extension - How would I do this without using if statements?
  One Sunday morning, lying in bed - Boom Finite State Machines
-What is a Finite State Machine?
    -Mathematical model used to design computer programs and logical circuits
-Real World Examples
  Soda machine
  Electronic turnstiles

mikedao

2-1 Order.first.items << Item.first

2-2 

2-3
before_destroy :destroy_orders
def destroy_orders
  self.orders.delete_all
end

mikedao

contentSecurityPolicy: {
    'default-src': "'none'",
    'script-src': "'self' 'unsafe-inline' 'unsafe-eval'",
    'font-src': "'self'",
    'connect-src': "'self'",
    'img-src': "'self'",
    'style-src': "'self' 'unsafe-inline'",
    'frame-src': "'none'"
  }

mikedao

Create a Car Class conceptually

Class - Lay out the form for a category or type of an object.

Instance - A single realization or actualization of a class.

Google the characters in Hamlet, and you would get a list of Characters and Plays.

You get a list of significant characters, and not all characters.

mikedao

Wizarding Bank Challenge

Gringott's Wizarding Bank

Gringott's has become too big to fail, so the Ministry of Magic has decided to break up this wizarding bank.

But they need, quite literally, a programming wizard to create the software to run these banks.

Specification

mikedao

git clone https://github.com/turingschool-examples/oregon_sale.git

cd oregon_sale

rvm install 1.9.3

rvm use 1.9.3

brew update