mysql根据多个字段的数据计算排序
select *,num1+num2*10+num3*100 num from $tableName order by num desc
yii2框架活动记录activeRecord添加默认字段
$query =(new yiidbQuery()) ->select([ 'table.*', new Expression("'身份证' id_no_type") ]) ->from(['table' => $this->tableName()])
yii2框架活动记录activeRecord添加计算字段
$query =(new yiidbQuery()) ->select([ 'table.*', new Expression("views_num+collect_num*10+share_num*100 new_sort") ]) ->from(['table' => $this->tableName()])