rupurt

# Here's a contrived example of a LEFT JOIN using ARel. This is an example of
# the mechanics, not a real-world use case.

# == DEFINITIONS
# - A Taxi is a car for hire. A taxi has_many :passengers.
# - A Passenger records one person riding in one taxi one time. It belongs_to :taxi.

class Taxi < ActiveRecord::Base
  # This scope LEFT JOINs the Passenger table. You might use this if you wanted
  # to select taxis by a set of taxi and passenger IDs (as with the