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I have three Models. Both makes and models table have name column inside.

class Review < ActiveRecord::Base
    belongs_to :model
end

class Model < ActiveRecord::Base
    belongs_to :make
    has_many :reviews
end

class Make < ActiveRecord::Base
    has_many :models
end 

In Active Admin on Index Page I want to sort reviews by make and model. I figured out how to sort it by model, because it has key the reviews table. Tried a lot of things. Nothing works to sort by make name. I was able to list though.

ActiveAdmin.register Review do
    column "Model", sortable: 'model_id' do |p|
        p.model.name
    end
    column "Make", sortable: 'make_id' do |review|
        review.model.make.name
    end
end

Only sorting by model name works. I think if I add make_id to Reviews it will be working, but it seems redundant, cause a chain like review.model.make perfectly works

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