defmodule Aggiedit.Repo.Migrations.CreatePostVotes do use Ecto.Migration def change do create table(:post_votes) do add :is_up, :boolean add :user_id, references(:users, on_delete: :nothing) add :post_id, references(:posts, on_delete: :delete_all) timestamps() end create unique_index(:post_votes, [:user_id, :post_id]) end end