pleroma/priv/repo/migrations/20190711042021_create_safe_...

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defmodule Pleroma.Repo.Migrations.CreateSafeJsonbSet do
use Ecto.Migration
def change do
execute("""
create or replace function safe_jsonb_set(target jsonb, path text[], new_value jsonb, create_missing boolean default true) returns jsonb as $$
declare
result jsonb;
begin
result := jsonb_set(target, path, coalesce(new_value, 'null'::jsonb), create_missing);
if result is NULL then
raise 'jsonb_set tried to wipe the object, please report this incindent to Pleroma bug tracker. https://git.pleroma.social/pleroma/pleroma/issues/new';
return target;
else
return result;
end if;
end;
$$ language plpgsql;
""")
end
end