mobilizon/priv/repo/migrations/20191114155534_cascade_comment_deletion.exs

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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