abilitiestest.ex

defmodule Abilities1 do
  defimpl Canada.Can, for: User do
    def can?(%User{id: user_id}, action, %Testimonial{id: testimonial_id})
      when action in [:create], do: true
    def can?(%User{id: user_id}, action, %Testimonial{id: testimonial_id})
      when action in [:edit], do: true
  end
end

defmodule BetterAbilities do
  defimpl Canada.Can, for: User do
    # We can declare both action permissions in a single statement
    def can?(%User{id: user_id}, action, %Testimonial{id: testimonial_id})
      when action in [:create, :edit], do: true
  end
end