This week's Ruby news, issue 288

Do not adjust your set - you're getting Ruby Weekly on Friday this week. I've been chairing a conference and ran out of time, but back on schedule next week :-)
- Peter Cooper, your humble editor

Jobs

• Lead Product Engineer, Billing & Payments (London, UK)You’ll build that software that creates our financial infrastructure and allows us to operate. You’ll lead a team of engineers, influence product decisions, set the technical direction, and work in Ruby and JavaScript. AlphaSights
• Get 10 offers from top tech companies in one week.Indeed Prime is an elite new program from Indeed.com that presents in-demand tech talent like you to top employers. Indeed Prime opens the door to exciting career opportunities with one simple application. Join today. Indeed.com

In brief

• Rails 4.2.6 and 4.1.15 Released news 
  Riding Rails
• Writing A Microservice in Ruby tutorial 
  Code Rascal
• Rails 5 Makes Rendering Partials From Cache Substantially Faster tutorial 
  Ratnadeep Deshmane
• FactoryGirl Beyond the Database tutorial
  FactoryGirl can create plain old Ruby objects too.  
  Miguel Palhas
• My New Favorite Enumerable Method: each_cons tutorial 
  Jesus Castello
• Download free eBook: Continuous Integration and Continuous Delivery with Docker tutorial
  Learn how to deliver reliable software faster with a Continuous Delivery Pipeline using Docker and containers in this free e-book. 
  Codeship   Sponsored
• PostgreSQL and Rails, Sitting in A Tree tutorial
  A look at working with large hierarchical structures in Rails with Postgres.  
  Viktor Sokolov
• Rails 5 Switches From Strong ETags to Weak ETags tutorial
  ETags are used in cache validation.  
  Prajakta Tambe
• Refactoring in Ruby: Primitive Obsession tutorial
  A look at refactoring out primitive constants from a class, although I’m not convinced it’s always a good approach.  
  Ilija Eftimov
• How to Configure Travis CI to Use Multiple Databases with Rails Tests tutorial 
  Tom Dallimore
• A Look at Significant Speed Differences Between Date Parsing Methods opinion 
  devlucky
• Modern Concurrency Tools for Ruby tools
  Supports modern versions of Ruby and includes agents, futures, promises, thread pools, supervisors, etc.  
  ruby-concurrency
• 5 Capistrano Tools You Didn’t Know About tools 
  Yury Kaliada
• Opal-Phaser: Write Browser Games in Ruby tools
  Brings together Opal (Ruby to JS tool) and the Phaser game development framework.  
  Orbital Impact
• URN: Validate and Normalize URNs According to RFC 2141 code
  URNs are Uniform Resource Names, e.g. urn:isbn:0451450523 
  Altmetric LLP
• has_reindexable_associations: Automatic Elasticsearch Reindexing of ActiveRecord Associations code 
  efigence
• Reencryptor: Make Your Legacy Rails Apps More Secure code
  Helps you migrate and re-encrypt data within a table.  
  Nathaniel Rowe
• ATV: ASCII Tables For Clearer Testing codetutorial 
  Kelly Felkins
• Has Your Rails App Got the Ops Infrastructure it Deserves? 
  Let us take care of your ops and get your site performing at it's best. Our ops team supports your Rails app 24/7 from less than $1 per hour. Fixed price hassle-free ops is what we do best. 
  Reinteractive   Sponsored