Ruby5 #605

Ruby5 - Episode #605 - December 8th, 2015

• Migrate Rails app from MongoDB to PostgreSQL
  • using mongoid and mongoid/moped, which not only caused memory leaks (rack mini profiler)
  • class UsersRepository
• Immutable strings in Ruby 2.3
  • 3 times faster
  • --debug-frozen-string-literal
• Action Cable
  • WebSockets via Faye
  • easier than polling
  • nodejs-websocket
• Debugging with Better Errors
  • Rails 4.x