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Record
  new -> LocalOnly
  LocalOnly*
    save -> InFlight
  Persisted
    edit -> Edited
  Edited
    save -> InFlight
  InFlight
    success -> Persisted

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RSpec.configure do |config|
  config.mock_with :rspec do |mocks|
    mocks.verify_doubled_constant_names = true
  end
end

class Greeting
  def greet
    'Hi'
  end

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class Person
  getter name

  def initialize(@name : String)
  end
end

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class AddDirectionToVotes::V20171102095010 < LuckyMigrator::Migration::V1
  def migrate
    alter :votes do
      add positive : Bool?
    end

    execute "UPDATE votes SET positive = 'true';"
    execute "ALTER TABLE votes ALTER COLUMN positive SET NOT NULL;"
  end

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web v0.4.2
migrator: v0.2.3

Routing is a little odd at first, but I think I will enjoy it eventually. It's weird having implicit routes.

I love having the routes in pages be their own classes, i.e. link "Edit", to: Topics::Edit.route(topic). The relationship between routes and controller#action is a part of rails that I think a lot of beginners don't grok for a while.

My mental model for what goes in a form, query, and model is pretty confused. I love the idea of separation. It's one of the first parts of rails to get messy, but I need a lot of help understanding where to put what. This could very well be me having to unlearn rails.

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# An algorithm to reverse a number using only mathematical functions, i.e. no
# String.reverse, or similar. For example, turn `1234` into `4321`.

def reverse_number(number)
  digit_count = Math.log10(number).floor + 1
  sum = 0
  (1..digit_count).each do |power|
    ten_to_the_n = 10.0**power
    ten_to_the_n_minus_one = 10.0**(power - 1)
    remainder = number % ten_to_the_n

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import Cocoa

class ViewA: NSView {
    override func drawRect(rect: NSRect) {
        let context = NSGraphicsContext.currentContext()?.CGContext

        CGContextSetRGBFillColor(context, 0, 0, 0, 1)
        CGContextFillRect(context, bounds)

        CGContextSetRGBFillColor(context, 1, 0, 0, 1)

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Delete this file:

/Library/Preferences/com.apple.Bluetooth.plist

Then restart the computer.

Source: http://www.epforums.org/showthread.php?94127-PS4-DS4-Controller-Bluetooth-Pairing-Problem-on-Mac-OS-X-Yosemite&p=1777382#post1777382

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remove_column :table, :id, :primary_key
add_column :table, :id, :uuid, default: 'uuid_generate_v4()'
execute('ALTER TABLE table ADD PRIMARY KEY (id);')

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require 'net/http'
require 'json'

def request
  Net::HTTP.get(URI('http://socialclub.rockstargames.com/games/gtav/ps4/bawsaq'))

  uri = URI('http://socialclub.rockstargames.com/games/gtav/ajax/stockdetail')
  http = Net::HTTP.new(uri.host, uri.port)
  req =  Net::HTTP::Get.new(uri)