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/* 
  ##Device = Desktops
  ##Screen = 1281px to higher resolution desktops
*/

@media (min-width: 1281px) {
  
  //CSS
  

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class Badger
  
  attr_accessor :name, :size # Creates getter and setter methods.
  
  def initialize(name, size)
    @name = name
    @size = size
  end
  
  # Instance method

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Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

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Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

• add_column
• add_index
• change_column
• change_table
• create_table
• drop_table

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Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

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#Installing ngrok on OSX

1. Download ngrok
2. Unzip it to your Applications directory
3. Create a symlink (instructions below)

Creating a symlink to ngrok

Run the following two commands in Terminal to create the symlink.

# cd into your local bin directory

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Plugboard = Hash[*('A'..'Z').to_a.sample(20)]
Plugboard.merge!(Plugboard.invert)
Plugboard.default_proc = proc { |_, key| key }

def build_a_rotor
  Hash[('A'..'Z').zip(('A'..'Z').to_a.shuffle)]
end

ROTOR_1, ROTOR_2, ROTOR_3 = build_a_rotor, build_a_rotor, build_a_rotor