Rails: Get the model class name based on the controller class name

house_buyers_controller.rb

class HouseBuyersController < ApplicationController

  def index
    @model_name = controller_name.classify
    # Equivalent of @house_buyers = HouseBuyer.find(:all)
    objects = @model_name.constantize.find(:all)
    instance_variable_set("@#{controller_name}", objects)
  end

end

https://stackoverflow.com/a/6770284/188574