Previous versions used homebrew to install the various versions. As suggested in the comments, it's better to use pyenv instead. If you are looking for the previous version of this document, see the revision history.
$ brew update
$ brew install pyenv
$ pyenv install 3.5.0
$ pyenv install 3.4.3
$ pyenv install 3.3.6
$ pyenv install 3.2.6
$ pyenv install 2.7.10
$ pyenv install 2.6.9
| class Agent < ActiveRecord::Base | |
| validates :first_name, :last_name, :email, presence: true | |
| validates :email, uniqueness: true | |
| has_many :missions | |
| scope :on_assignment, -> { Agent.joins(:missions).where(missions: { status: 'active' }) } | |
| scope :not_on_assignment, -> { where.not(id: Agent.on_assignment.pluck(:id)) } | |
| def name | |
| "#{first_name} #{last_name}" | |
| end |
| # MODEL | |
| class Case < ActiveRecord::Base | |
| include Eventable | |
| has_many :tasks | |
| concerning :Assignment do | |
| def assign_to(new_owner:, details:) | |
| transaction do |
People
 :bowtie: |
😄 :smile: |
😆 :laughing: |
|---|---|---|
😊 :blush: |
😃 :smiley: |
:relaxed: |
😏 :smirk: |
😍 :heart_eyes: |
😘 :kissing_heart: |
😚 :kissing_closed_eyes: |
😳 :flushed: |
😌 :relieved: |
😆 :satisfied: |
😁 :grin: |
😉 :wink: |
😜 :stuck_out_tongue_winking_eye: |
😝 :stuck_out_tongue_closed_eyes: |
😀 :grinning: |
😗 :kissing: |
😙 :kissing_smiling_eyes: |
😛 :stuck_out_tongue: |
| # Generating throwaway QR codes from the command line for shunting URLS to mobile devices | |
| brew install qrencode | |
| qrencode -o - http://www.google.com | open -f -a preview |
| #!/usr/bin/env ruby | |
| hits_ = nil | |
| misses_ = nil | |
| loop do | |
| `redis-cli info | grep keyspace` =~ /hits:(\d+).*misses:(\d+)/m | |
| hits, misses = $1.to_i, $2.to_i | |
| if hits_ |
| # A simple function to return a signed, expiring url for Amazon Cloudfront. | |
| # As it's relatively difficult to figure out exactly what is required, I've posted my working code here. | |
| # This will require openssl, digest/sha1, base64 and maybe other libraries. | |
| # In my rails app, all of these are already loaded so I'm not sure of the exact dependencies. | |
| module CloudFront | |
| def get_signed_expiring_url(path, expires_in, private_key_filename, key_pair_id) | |
| # AWS works on UTC, so make sure you are not using local time |
| So you've cloned somebody's repo from github, but now you want to fork it and contribute back. Never fear! | |
| Technically, when you fork "origin" should be your fork and "upstream" should be the project you forked; however, if you're willing to break this convention then it's easy. | |
| * Off the top of my head * | |
| 1. Fork their repo on Github | |
| 2. In your local, add a new remote to your fork; then fetch it, and push your changes up to it | |
| git remote add my-fork [email protected] |
| #making .irbrc posted at http://www.tech-angels.fr/post/963080350/improve-irb-and-fix-it-on-mac-os-x | |
| #work with rails3 | |
| require 'rubygems' | |
| #rails3: be sure to include wirble and hirb in your Gemfile | |
| require 'wirble' | |
| require 'hirb' | |
| Wirble.init | |
| Wirble.colorize | |
| # hirb (active record output format in table) |