ash_postgres/priv/test_repo/migrations/20211113185741_migrate_resources1.exs

defmodule AshPostgres.TestRepo.Migrations.MigrateResources1 do
  @moduledoc """
  Updates resources based on their most recent snapshots.

  This file was autogenerated with `mix ash_postgres.generate_migrations`
  """

  use Ecto.Migration

  def up do
    create table(:users, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
      add :name, :text
      add :org_id, :uuid
    end

    create table(:posts, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
      add :title, :text
      add :score, :bigint
      add :public, :boolean
      add :category, :citext
      add :type, :text, default: "sponsored"
      add :price, :bigint
      add :decimal, :decimal, default: 0
      add :status, :text
      add :created_at, :utc_datetime_usec, null: false, default: fragment("now()")
    end

    create table(:post_ratings, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
      add :score, :bigint

      add :resource_id,
          references(:posts, column: :id, name: "post_ratings_resource_id_fkey", type: :uuid)
    end

    create table(:post_links, primary_key: false) do
      add :source_post_id,
          references(:posts, column: :id, name: "post_links_source_post_id_fkey", type: :uuid),
          primary_key: true,
          null: false

      add :destination_post_id,
          references(:posts, column: :id, name: "post_links_destination_post_id_fkey", type: :uuid),
          primary_key: true,
          null: false
    end

    create table(:multitenant_orgs, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
    end

    alter table(:users) do
      modify :org_id,
             references(:multitenant_orgs, column: :id, name: "users_org_id_fkey", type: :uuid)
    end

    alter table(:multitenant_orgs) do
      add :name, :text
    end

    create unique_index(:multitenant_orgs, [:id, :name],
             name: "multitenant_orgs_unique_by_name_index"
           )

    create table(:integer_posts, primary_key: false) do
      add :id, :bigserial, null: false, primary_key: true
      add :title, :text
    end

    create table(:comments, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
      add :title, :text
      add :likes, :bigint
      add :arbitrary_timestamp, :utc_datetime_usec
      add :created_at, :utc_datetime_usec, null: false, default: fragment("now()")

      add :post_id,
          references(:posts,
            column: :id,
            name: "special_name_fkey",
            type: :uuid,
            on_delete: :delete_all,
            on_update: :update_all
          )

      add :author_id, :uuid
    end

    create table(:comment_ratings, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
      add :score, :bigint

      add :resource_id,
          references(:comments, column: :id, name: "comment_ratings_resource_id_fkey", type: :uuid)
    end

    create table(:authors, primary_key: false) do
      add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
    end

    alter table(:comments) do
      modify :author_id,
             references(:authors, column: :id, name: "comments_author_id_fkey", type: :uuid)
    end

    alter table(:authors) do
      add :first_name, :text
      add :last_name, :text
    end

    create constraint(:posts, :price_must_be_positive, check: "type = 'sponsored' AND price > 0")
  end

  def down do
    drop_if_exists constraint(:posts, :price_must_be_positive)

    alter table(:authors) do
      remove :last_name
      remove :first_name
    end

    drop constraint(:comments, "comments_author_id_fkey")

    alter table(:comments) do
      modify :author_id, :uuid
    end

    drop table(:authors)

    drop constraint(:comment_ratings, "comment_ratings_resource_id_fkey")

    drop table(:comment_ratings)

    drop constraint(:comments, "special_name_fkey")

    drop table(:comments)

    drop table(:integer_posts)

    drop_if_exists unique_index(:multitenant_orgs, [:id, :name],
                     name: "multitenant_orgs_unique_by_name_index"
                   )

    alter table(:multitenant_orgs) do
      remove :name
    end

    drop constraint(:users, "users_org_id_fkey")

    alter table(:users) do
      modify :org_id, :uuid
    end

    drop table(:multitenant_orgs)

    drop constraint(:post_links, "post_links_destination_post_id_fkey")

    drop constraint(:post_links, "post_links_source_post_id_fkey")

    drop table(:post_links)

    drop constraint(:post_ratings, "post_ratings_resource_id_fkey")

    drop table(:post_ratings)

    drop table(:posts)

    drop table(:users)
  end
end