Ruby5 #629

Ruby5 - Episode #629 - April 1st, 2016

• What makes a great Tech Lead?
  • Full Stack over Specialist
  • Takes Responsibility over Waits For Tasks
  • Breaks New Ground over Sticks To Tried & Tested
  • Author over Translator
  • Active Communicator over Wallflower
  • Reliable over Unreliable
  • Mentor over Mentee
  • Embraces Customers over Avoids Customers
  • Solves The Problem over Flags The Problem
  • Always Be Learning
• PostgreSQL fsync flag
  • turning off fsync is often a performance benefit,
  • updates are physically written to disk, by issuing fsync() system calls or various equivalent methods (see wal_sync_method). This ensures that the database cluster can recover to a consistent state after an operating system or hardware crash
• db_text_search
  • A unified interface on top of ActiveRecord for case-insensitive string-in-set querying and full-text search on SQLite, MySQL, and PostgreSQL
  • DbTextSearch::CaseInsensitiveEq.add_index
• Five ActiveRecord Features
  • pluck, transaction, touch, changes (changed?, _was)
  • after_commit callback is only triggered after the record is persisted to the database
    • queue, log