If you are like many (most?) of us, you have encountered Rails
Credentials/Secrets and secret_key_base and may have been
left a bit (or more) confused.
This post is an attempt to remove some of that confusion by
brianjbayer
/ gist-unlocking-the-secrets-of-rails-secrets-and-credentials.md
Last active
October 8, 2025 10:20
A comprehensive examination of Rails Secrets, Credentials, and Secret Key Base
sepastian
/ multi_cartesian_product.rb
Last active
July 26, 2024 19:46
Build the cartesian product of multiple arrays in Ruby.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Given an array of arrays s = [ [1,2,3], [4,5,6], ... ] | |
| # compute the Cartesian product among the elements of s. | |
| require 'pp' | |
| s = [[1, 2], [3, 4, 5], [6, 7, 8, 9]] | |
| pp s[1..-1].inject(s[0]){ |m,v| m = m.product(v).map(&:flatten) } | |
| [[1, 3, 6], | |
| [1, 3, 7], | |
| [1, 3, 8], |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Activate the gem you are reporting the issue against. | |
| gem 'activerecord', '4.2.6' | |
| require 'active_record' | |
| require 'minitest/autorun' | |
| require 'logger' | |
| $logger = Logger.new(STDOUT) | |
| # This connection will do for database-independent bug reports. | |
| ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:') |