public static function populateMissingKeys()
{
$users = migration_dbconnection::queryArray("SELECT * FROM users WHERE read_write_key = ''", "v2");
for ($i = 0; $i < count($users); $i++) {
$read = migration::rand_string(64);
$write = migration::rand_string(64);
$read_write = migration::rand_string(64);
migration_dbconnection::query("UPDATE users SET " . "read_key = '{$read}', " . "write_key = '{$write}', " . "read_write_key = '{$read_write}' " . "WHERE user_id = '{$users[$i]->user_id}'", "v2");
migration_dbconnection::query("UPDATE user_migrations SET v2_read_write_key = '{$read_write}' WHERE v2_user_id = '{$users[$i]->user_id}'");
}
return new migration_return_package(0);
}
