• Query for NULL 'or' empty string in ActiveRecord

  PostgreSQL by Matt Polito

• Debugging Action Callbacks (aka Filters) in Rails

  by Dorian Karter

• Rails Quick Tips: Easy ActiveRecord Optimizations

  by Micah Woods

• Datetime select

  by Pavel Pravosud

• Rails Quick Tips - ActiveRecord Ordering

  Ruby by Matt Polito

• Rails Quick Tips - Pluck Multiple Columns

  Ruby by Matt Polito

• Rails Quick Tips - Random Records

  Ruby by Matt Polito

• Rails Quick Tips - ActiveRecord::Calculations.pluck

  Ruby by Matt Polito