phpstock/app/admin/model/GoodStockInfo.php

<?php
declare (strict_types = 1);

namespace app\admin\model;

use think\Exception;
use think\Model;

/**
 * @mixin \think\Model
 */
class GoodStockInfo extends Model
{

    /**
	* @param int $stockid 仓库库存id
	* @param string $bn bn编号
	* @param int $num  bn数量
	* @param float $origin_price 采购成本价
	* @return bool  入库bn库存数新建 或退回bn库存数
	*/
    static function AddBn(int $stockid,string $bn,int $num,float $origin_price=0){
		$data=self::where(["stockid"=>$stockid,"bnCode"=>$bn])->findOrEmpty()->toArray();
		if(empty($data)){
			$data=[
				"stockid"=>$stockid,
				"bnCode"=>$bn,
				"total_num"=>$num,
				"used_num"=>0,
				"balance_num"=>$num,
				"origin_price"=>$origin_price,
				"addtime"=>date("Y-m-d H:i:s"),
				"updatetime"=>date("Y-m-d H:i:s")
				];
		}else{
			$total_num = $data["balance_num"]+$num;
			if($total_num> $data["total_num"]) throw new Exception("批次入库数量超过总数",1006);
			$data["balance_num"]=$num;
			$data["updatetime"]=date("Y-m-d H:i:s");
		}

		return (new self())->save($data);
    }

	/**
	* @param int $stockid
	* @param int $num
	 * @return array  库存品下单消耗bn库存数
	* @throws \think\Exception
	* @throws \think\db\exception\DataNotFoundException
	* @throws \think\db\exception\DbException
	* @throws \think\db\exception\ModelNotFoundException
	*/
	static function SaleBn(int $stockid,int $num){
		$arr = self::where([["stockid","=",$stockid],["balance_num",">",0]])->select()->toArray();
		if(empty($arr)) throw new Exception("库存批次数量不足","1006");
		$list=[];
		foreach ($arr as $item) {
			if($num<=0) break;
			$temp=[];
		    if($item['balance_num']<=$num){
		    	$item['balance_num'] =0;
		    	$item['used_num'] +=$item['balance_num'];
		    	$num-=$item['balance_num'];
		    	$item['updatetime'] =date("Y-m-d H:i:s");
		    	$temp=["bnCode"=>$item['bnCode'],"num"=>$item['balance_num'],"origin_price"=>$item["origin_price"]];
		    }else{
				$item['balance_num']-=$num;
		    	$item['used_num'] +=$num;
		    	$num=0;
		    	$item['updatetime'] =date("Y-m-d H:i:s");
		    	$temp=["bnCode"=>$item['bnCode'],"num"=>$num,"origin_price"=>$item["origin_price"]];
		    }
			(new self())->save($item);
		    $list[]=$temp;
		}
		return $list;
    }
	/**
	* @param int $stockid
	* @param string $bn
	* @param int $num
	* @return bool  盘点修改bn仓库库存数
	* @throws \think\Exception
	*/
	static function CheckBn(int $stockid,string $bn,int $num){
		$data=self::where(["stockid"=>$stockid,"bnCode"=>$bn])->findOrEmpty()->toArray();
		if(empty($data)) throw new Exception("未找到Bn库存数据",1006);
			$data["balance_num"]=$num;
			$data["total_num"]=$data["used_num"]+$num;
			$data["updatetime"]=date("Y-m-d H:i:s");
		return (new self())->save($data);
    }
	/**
	* @param string $orderCode
	* @param int $stockid
	* @param int $num
	 * @return int
	* @throws \think\Exception
	* @throws \think\db\exception\DataNotFoundException
	* @throws \think\db\exception\DbException
	* @throws \think\db\exception\ModelNotFoundException
	 */
	static function OrderBn(string $orderCode,int $stockid,int $num){
        $bnArr=self::SaleBn($stockid,$num);
        if(empty($bnArr)) throw new Exception("未找到Bn库存数据",1006);
        $ordBn=[];
        foreach ($bnArr as $value){
	        $saleBn=[
	        "orderCode"=>$orderCode,
	        "bnCode"=>$value['bnCode'],
	        "stockid"=>$stockid,
	        "num"=>$value['num'],
	        "origin_price"=>$value['origin_price'],
	        "addtime"=>date("Y-m-d H:i:s"),
	        "updatetime"=>date("Y-m-d H:i:s"),
	        ];
	        $ordBn[]=$saleBn;
        }

        return self::name("sale_info")->insertAll($ordBn);
    }
	/**
	* @param string $returnCode
	* @param int $salebnid
	* @param int $num
	* @param int $type
	 * @return bool
	* @throws \think\Exception
	 */
	static function ReturnBn(string $returnCode,int $salebnid,int $num,int $type=1){
    	$sabn=self::name("sale_info")->where(['id'=>$salebnid])->findOrEmpty()->toArray();
    	if(empty($sabn))throw new Exception("未找到Bn订单数据",1006);
    	$return=[
    		"returnCode"=>$returnCode,
    	    "type"=>$type,
    	    "orderCode"=>$sabn['orderCode'],
    	    "bnCode"=>$sabn['bnCode'],
    	    "origin_price"=>$sabn['origin_price'],
    	    "num"=>$num,
    	    "addtime"=>date("Y-m-d H:i:s")
    	    ];
    	return self::name("return_info")->save($return);
    }
	/**  调拨专用 需要注意bn总数变化
	* @param int $stockid 库存id
	* @param string $bnCode bn编号
	* @param int $num  库存数量
	* @param int $flag  操作类型 0 添加库存 1 减少库存
	* @param float|int $origin_price  成本价
	 * @return bool
	* @throws \think\Exception
 */
	static function bnStock(int $stockid,string $bnCode,int $num,int $flag=0,float $origin_price=0){
			$stock =self::where(["stockid"=>$stockid,"bnCode"=>$bnCode])->lock(true)->findOrEmpty()->toArray();
			if($flag==1) {
				if(empty($stock)|| $stock['balance_num']< $num)
					throw new Exception("bn库存数不足",1006);
				else{
						$stock['balance_num']-=$num;
						$stock['total_num']-=$num;
						$stock['updatetime']=date("Y-m-d H:i:s");
					}
			}else{
				if (empty($stock)){
					$stock=[
						"bnCode"=>$bnCode,
						"stockid"=>$stockid,
						"total_num"=>$num,
						"used_num"=>0,
						"balance_num"=>$num,
						"origin_price"=>$origin_price,
						"addtime"=>date("Y-m-d H:i:s"),
						"updatetime"=>date("Y-m-d H:i:s")
						];
				}else{
						$stock['balance_num']+=$num;
						$stock['total_num']+=$num;
						$stock['updatetime']=date("Y-m-d H:i:s");
				}
			}
			return	(new self())->save($stock);
	}
}