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# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Repo.Migrations.ChatConstraints do
use Ecto.Migration
def change do
remove_orphans = """
delete from chats where not exists(select id from users where ap_id = chats.recipient);
"""
execute(remove_orphans)
drop(constraint(:chats, "chats_user_id_fkey"))
alter table(:chats) do
modify(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
modify(
:recipient,
references(:users, column: :ap_id, type: :string, on_delete: :delete_all)
)
end
end
end
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