defmodule Mobilizon.Storage.Repo.Migrations.CascadeCommentDeletion do use Ecto.Migration def up do drop(constraint(:comments, "comments_in_reply_to_comment_id_fkey")) drop(constraint(:comments, "comments_origin_comment_id_fkey")) alter table(:comments) do modify(:in_reply_to_comment_id, references(:comments, on_delete: :nilify_all)) modify(:origin_comment_id, references(:comments, on_delete: :nilify_all)) end end def down do drop(constraint(:comments, "comments_in_reply_to_comment_id_fkey")) drop(constraint(:comments, "comments_origin_comment_id_fkey")) alter table(:comments) do modify(:in_reply_to_comment_id, references(:comments, on_delete: :nothing)) modify(:origin_comment_id, references(:comments, on_delete: :nothing)) end end end