things.ex

defmodule Animals do
  alias Animals.{Cat, Dog, Bear}

  def get_module("cat"), do: Cat
  def get_module("dog"), do: Dog
  def get_module("bear"), do: Bear

  def do_this(model),
    do: apply(get_module(model.type), :validate_structure, [model])

  def do_that(model, folder),
    do: apply(get_module(model.type), :create_folder, [model])

  def do_other(model, folder),
    do: apply(get_module(model.type), :update_folder, [model])
end