List all the models in your Rails app from rails console. Doesn't work for 4.1.4)

get_models.rb

def load_models_in_development
  if Rails.env == "development"
    load_models_for(Rails.root)
    Rails.application.railties.engines.each do |r|
      load_models_for(r.root)
    end
  end
end

def load_models_for(root)
  Dir.glob("#{root}/**/app/*models/**/*.rb") do |model_path|
    begin
      require model_path
    rescue
      # ignore
    end
  end
end

'puts ActiveRecord::Base.send(:subclasses)' will print the models derived from ActiveRecord