或条件在findByUsername()在yii2与mongoDB

Question

如何使用or condition在yii2高级模板与mongoDB:

what I want:

$sql = "SELECT * FROM admin WHERE (username = '$username' OR email = '$username');

如何将此条件放入以下函数中:

public static function findByUsername($username)
{
  return static::findOne(['username' => $username]);
}

Answer 1

我是这样解决的:

public static function findByUsername($username)
    {
        $con = array('$or' => array(array('username' => $username),array('email' => $username)));
        return static::findOne($con);
    }