ball/app/common/model/equity/UserEquity.php

<?php

namespace app\common\model\equity;
use app\common\model\BaseModel;

class UserEquity extends BaseModel
{

    protected $name = 'user_equity';
    public function equityConfig()
    {
        return $this->hasOne(EquityConfig::class, 'id', 'equity_id');
    }
}