pleroma/priv/repo/migrations/20220711182322_add_associated_object_id_function.exs

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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.AddAssociatedObjectIdFunction do
use Ecto.Migration
def up do
statement = """
CREATE OR REPLACE FUNCTION associated_object_id(data jsonb) RETURNS varchar AS $$
DECLARE
object_data jsonb;
BEGIN
IF jsonb_typeof(data->'object') = 'array' THEN
object_data := data->'object'->0;
ELSE
object_data := data->'object';
END IF;
IF jsonb_typeof(object_data->'id') = 'string' THEN
RETURN object_data->>'id';
ELSIF jsonb_typeof(object_data) = 'string' THEN
RETURN object_data#>>'{}';
ELSE
RETURN NULL;
END IF;
END;
$$ LANGUAGE plpgsql IMMUTABLE;
"""
execute(statement)
end
def down do
execute("DROP FUNCTION IF EXISTS associated_object_id(data jsonb)")
end
end