jeudi 8 décembre 2016

Nested records using join Rails

I have these models

class Car < ApplicationRecord
  has_many :car_locations ,:dependent=>:destroy
  has_many :rides,:dependent=>:destroy
end

class CarLocation < ApplicationRecord
  belongs_to :car
end

class Ride < ApplicationRecord
  belongs_to :car
end

There is a status attribute in Ride Model of boolean type.

Now I want those Car Locations whose car rides status is false or don't have any car ride with in minimum complexity.

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