| class SomeComplicatedMess | |
| def initialize(keyword:, occasionally_required_keyword: required_now?(keyword)) | |
| end | |
| private | |
| def required_now?(keyword) | |
| throw 'occasionally_required_keyword is required when keyword is banana' if keyword == 'banana' | |
| end | |
| end |
#System Design Cheatsheet
Picking the right architecture = Picking the right battles + Managing trade-offs
##Basic Steps
| require 'pry' | |
| module Repeats | |
| def n_times(n) | |
| Repeats::Repeater.new(self, n) | |
| end | |
| class Repeater | |
| def initialize(parent, times) | |
| @parent = parent |
| # -*- mode: ruby -*- | |
| # vi: set ft=ruby : | |
| # All Vagrant configuration is done below. The "2" in Vagrant.configure | |
| # configures the configuration version (we support older styles for | |
| # backwards compatibility). Please don't change it unless you know what | |
| # you're doing. | |
| Vagrant.configure(2) do |config| | |
| config.vm.box = "rhel6_6" | |
| config.vm.network :forwarded_port, guest: 22, host: 3000, id: "ssh" |
| require 'mechanize' | |
| agent = Mechanize.new | |
| agent.get('http://jobs.startupnorth.ca/recent') do |page| | |
| jobs = page.search('.job-link') | |
| jobs.each do |job| | |
| title = job.text | |
| job_page = agent.get(job.attributes['href'].value) | |
| description = job_page.search('.job-description').text | |
| end |
| require 'mechanize' | |
| agent = Mechanize.new | |
| agent.get('http://www.producthunt.com/tech?page=1') do |page| | |
| content = page.search('.post--content') | |
| title = content.map do |post| | |
| title = post.search('a.title').text | |
| description = post.search('.description').text | |
| end | |
| end |
| < | |
| %3C | |
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