happ/app/models/store/StoreBargain.php

<?php
/**
 *
 * @author: xaboy<365615158@qq.com>
 * @day: 2017/12/18
 */

namespace app\models\store;

use app\admin\model\store\StoreProductAttrValue;
use crmeb\basic\BaseModel;
use crmeb\traits\ModelTrait;
use app\models\store\StoreProduct;

/**
 * TODO 砍价产品Model
 * Class StoreBargain
 * @package app\models\store
 */
class StoreBargain extends BaseModel
{
    /**
     * 数据表主键
     * @var string
     */
    protected $pk = 'id';

    /**
     * 模型名称
     * @var string
     */
    protected $name = 'store_bargain';

    use ModelTrait;

    public function getDescriptionAttr($value)
    {
        return htmlspecialchars_decode($value);
    }

    public function getRuleAttr($value)
    {
        return htmlspecialchars_decode($value);
    }

    /**
     * 正在开启的砍价活动
     * @param int $status
     * @return StoreBargain
     */
    public static function validWhere($status = 1)
    {
        return self::where('is_del', 0)->where('status', $status)->where('start_time', '<', time())->where('stop_time', '>', time());
    }

    /**
     * 判断砍价产品是否开启
     * @param int $bargainId
     * @return int|string
     */
    public static function validBargain($bargainId = 0)
    {
        $model = self::validWhere();
        return $bargainId ? $model->where('id', $bargainId)->count() : $model->count();
    }

    /**
     * TODO 获取正在开启的砍价产品编号
     * @return array
     */
    public static function validBargainNumber()
    {
        return self::validWhere()->column('id');
    }

    /**
     * 获取正在进行中的砍价产品
     * @param int $page
     * @param int $limit
     * @param string $field
     * @return array
     */
    public static function getList($page = 0, $limit = 20, $field = 'id,product_id,title,price,min_price,image')
    {
        $model = self::validWhere()->field($field);
        if ($page) $model = $model->page($page, $limit);
        $list = $model->select()->each(function ($item) {
            $item['people'] = count(StoreBargainUser::getUserIdList($item['id']));
        });
        return $list ? $list->toArray() : [];
    }

    /**
     * TODO 获取一条正在进行中的砍价产品
     * @param int $bargainId $bargainId 砍价产品编号
     * @param string $field
     * @return array
     * @throws \think\Exception
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public static function getBargainTerm($bargainId = 0, $field = 'id,product_id,bargain_num,num,unit_name,image,title,price,min_price,image,start_time,stop_time,rule,info')
    {
        if (!$bargainId) return [];
        $model = self::validWhere();
        $bargain = $model->field($field)->where('id', $bargainId)->find();
        if ($bargain) return $bargain->toArray();
        else return [];
    }

    /**
     * 获取一条砍价产品
     * @param int $bargainId
     * @param string $field
     * @return array
     */
    public static function getBargain($bargainId = 0, $field = 'id,product_id,title,price,min_price,image')
    {
        if (!$bargainId) return [];
        $model = new self();
        $bargain = $model->field($field)->where('id', $bargainId)->find();
        if ($bargain) return $bargain->toArray();
        else return [];
    }

    /**
     * 获取最高价和最低价
     * @param int $bargainId
     * @return array
     */
    public static function getBargainMaxMinPrice($bargainId = 0)
    {
        if (!$bargainId) return [];
        return self::where('id', $bargainId)->field('bargain_min_price,bargain_max_price')->find()->toArray();
    }

    /**
     * 获取砍价次数
     * @param int $bargainId
     * @return mixed
     */
    public static function getBargainNum($bargainId = 0)
    {
        return self::where('id', $bargainId)->value('bargain_num');
    }

    /**
     * 判断当前砍价是否活动进行中
     * @param int $bargainId
     * @return bool
     */
    public static function setBargainStatus($bargainId = 0)
    {
        $model = self::validWhere();
        $count = $model->where('id', $bargainId)->count();
        if ($count) return true;
        else return false;
    }

    /**
     * 获取库存
     * @param int $bargainId
     * @return mixed
     */
    public static function getBargainStock($bargainId = 0)
    {
        return self::where('id', $bargainId)->value('stock');
    }

    /**
     * 获取字段值
     * @param $bargainId
     * @param string $field
     * @return mixed
     */
    public static function getBargainField($bargainId, $field = 'title')
    {
        return self::where('id', $bargainId)->value($field);
    }

    /**
     * 修改销量和库存
     * @param $num
     * @param $CombinationId
     * @return bool
     */
    public static function decBargainStock($num, $bargainId, $unique)
    {
        $product_id = self::where('id',$bargainId)->value('product_id');
        if ($unique) {
            $res = false !== StoreProductAttrValue::decProductAttrStock($bargainId, $unique, $num, 2);
            $res = $res && self::where('id', $bargainId)->dec('stock', $num)->inc('sales', $num)->update();
            $sku = StoreProductAttrValue::where('product_id',$bargainId)->where('unique',$unique)->where('type',2)->value('suk');
            $res = $res && StoreProductAttrValue::where('product_id',$product_id)->where('suk',$sku)->where('type',0)->dec('stock',$num)->inc('sales',$num)->update();
        } else {
            $res = false !== self::where('id', $bargainId)->dec('stock', $num)->inc('sales', $num)->update();
            $res = $res && StoreProduct::where('id',$product_id)->dec('stock', $num)->inc('sales', $num)->update();
        }
        return $res;
    }

    /**
     * TODO 增加库存减销量
     * @param $num
     * @param $bargainId
     * @return bool
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public static function IncBargainStock($num, $bargainId)
    {
        $bargain = self::where('id', $bargainId)->field(['stock', 'sales'])->find();
        if (!$bargain) return true;
        if ($bargain->sales > 0) $bargain->sales = bcsub($bargain->sales, $num, 0);
        if ($bargain->sales < 0) $bargain->sales = 0;
        $bargain->stock = bcadd($bargain->stock, $num, 0);
        return $bargain->save();
    }

    /**
     * TODO 获取所有砍价产品的浏览量
     * @return mixed
     */
    public static function getBargainLook()
    {
        return self::sum('look');
    }

    /**
     * TODO 获取正在开启的砍价活动
     * @return int|string
     */
    public static function getListCount()
    {
        return self::validWhere()->count();
    }

    /**
     * TODO 获取所有砍价产品的分享量
     * @return mixed
     */
    public static function getBargainShare()
    {
        return self::sum('share');
    }

    /**
     * TODO 添加砍价产品分享次数
     * @param int $id
     * @return StoreBargain|bool
     */
    public static function addBargainShare($id = 0)
    {
        if (!$id) return false;
        return self::where('id', $id)->inc('share', 1)->update();
    }

    /**
     * TODO 添加砍价产品浏览次数
     * @param int $id $id 砍价产品编号
     * @return StoreBargain|bool
     */
    public static function addBargainLook($id = 0)
    {
        if (!$id) return false;
        return self::where('id', $id)->inc('look', 1)->update();
    }
}