git.squeep.com Git - akkoma/blob - priv/repo/optional_migrations/pleroma_develop_rollbacks/20220711182322_add_associated_object_id_function.exs

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Repo.Migrations.AddAssociatedObjectIdFunction do
   6   use Ecto.Migration
   7
   8   def up do
   9     statement = """
  10     CREATE OR REPLACE FUNCTION associated_object_id(data jsonb) RETURNS varchar AS $$
  11     DECLARE
  12       object_data jsonb;
  13     BEGIN
  14       IF jsonb_typeof(data->'object') = 'array' THEN
  15         object_data := data->'object'->0;
  16       ELSE
  17         object_data := data->'object';
  18       END IF;
  19
  20       IF jsonb_typeof(object_data->'id') = 'string' THEN
  21         RETURN object_data->>'id';
  22       ELSIF jsonb_typeof(object_data) = 'string' THEN
  23         RETURN object_data#>>'{}';
  24       ELSE
  25         RETURN NULL;
  26       END IF;
  27     END;
  28     $$ LANGUAGE plpgsql IMMUTABLE;
  29     """
  30
  31     execute(statement)
  32   end
  33
  34   def down do
  35     execute("DROP FUNCTION IF EXISTS associated_object_id(data jsonb)")
  36   end
  37 end