public function down()
{
$this->dropTable(Config::tableName());
}
/**
* Insert configuration parameter.
* @param array $param Parameter from $config.
* @return integer
*/
protected function insert(array $param)
{
foreach (['rules', 'options'] as $binary) {
if (isset($param[$binary])) {
$param[$binary] = serialize($param[$binary]);
}
}
return Yii::$app->db->createCommand()->insert(Config::tableName(), $param)->execute();
}