baoshi-was/app/Services/MaterialBoxService.php

<?php


namespace App\Services;


use App\MaterialBox;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;
use App\Traits\ServiceAppAop;
use Illuminate\Support\Facades\DB;


class MaterialBoxService
{
    use ServiceAppAop;
    protected $modelClass=MaterialBox::class;


    /**
     * 获取一个空料箱
     *
     * @return MaterialBox|null
     */
    public function getAnEmptyBox()
    {
        $id = 0;
        while (true){
            $boxes = MaterialBox::query()->select('id',"code")->where("id",">",$id)->where("code","like","IDE%")
                ->where("status",4)->limit(10)->orderBy("id")->get();
            if ($boxes->count()==0)break;
            $ides = [];
            $str = "(";
            for ($i=0;$i<count($boxes)-1;$i++){
                $str .= "'".$boxes[$i]->code."',";
                $ides[$boxes[$i]->code] = $boxes[$i];
            }
            $box = $boxes[count($boxes)-1];
            $ides[$box->code] = $box;
            $str .= "'".$box->code."')";
            $id = $box->id;
            $sql = <<<sql
SELECT LOCATIONID,SUM(QTY+QTYPA) qty FROM INV_LOT_LOC_ID WHERE LOCATIONID IN {$str} GROUP BY LOCATIONID
sql;
            foreach (DB::connection("oracle")->select(DB::raw($sql)) as $item){
                if ((int)$item->qty==0)return $ides[$item->locationid];
                unset($ides[$item->locationid]);
            }
            if ($ides)return current($ides);
        }
        return null;
    }
}