主要是leftJoin多条件的时候应该怎么操作
$standardLog = (new \yii\db\Query())
->select('l.id,l.simple_id,l.unit_id,l.num,l.ratio,s.num as cur_num')
->from('pss_standard_log l')
->leftJoin('pss_simple_warehouse s', 's.simple_id = l.simple_id and s.warehouse_id='.$model->warehouse_id)
->where(['l.order_id'=>$orderId,'s.warehouse_id' => $model->warehouse_id])
->all();