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<?php
namespace App\Http\Model;
class Cart extends BaseModel
{
//产品模型
/**
* 关联到模型的数据表
*
* @var string
*/
protected $table = 'cart';
/**
* 表明模型是否应该被打上时间戳
* 默认情况下,Eloquent 期望 created_at 和updated_at 已经存在于数据表中,如果你不想要这些 Laravel 自动管理的数据列,在模型类中设置 $timestamps 属性为 false
*
* @var bool
*/
public $timestamps = false;
//protected $guarded = []; //$guarded包含你不想被赋值的字段数组。
//protected $fillable = ['name']; //定义哪些字段是可以进行赋值的,与$guarded相反
/**
* The connection name for the model.
* 默认情况下,所有的 Eloquent 模型使用应用配置中的默认数据库连接,如果你想要为模型指定不同的连接,可以通过 $connection 属性来设置
* @var string
*/
//protected $connection = 'connection-name';
const STATUS = 0; //商品是否删除,0未删除
//获取列表
public static function getList($uid)
{
$goods = self::join('goods', 'goods.id', '=', 'cart.goods_id')
->where('cart.user_id', $uid)
->where('goods.status', 0)
->select('cart.*')
->get();
if($goods)
{
foreach ($goods as $key => $value)
{
//订货数量大于0
if ($value->goods_number > 0)
{
$goods->goods_price = $goods_price = Goods::get_final_price($value->goods_id);
//更新购物车中的商品数量
self::where('id', $value->id)->update(array('goods_price' => $goods_price));
}
}
}
return $goods->toArray();
}
public static function getOne($id)
{
if(isset($status)){$where['status'] = $status;}else{$where['status'] = self::STATUS;}
$where['id'] = $id;
$goods = self::where($where)->first()->toArray();
$goods['price'] = get_final_price($id);
return $goods;
}
public static function add(array $data)
{
if ($id = self::insertGetId($data))
{
return $id;
}
return false;
}
public static function modify($where, array $data)
{
if (self::where($where)->update($data))
{
return true;
}
return false;
}
//删除一条记录
public static function remove($id)
{
if (!self::whereIn('id', explode(',', $id))->delete())
{
return false;
}
return true;
}
/**
* 取得商品最终使用价格
*
* @param string $goods_id 商品编号
* @param string $goods_num 购买数量
*
* @return 商品最终购买价格
*/
public static function get_final_price($goods_id)
{
$final_price = '0'; //商品最终购买价格
$promote_price = '0'; //商品促销价格
$user_price = '0'; //商品会员价格,预留
//取得商品促销价格列表
$goods = Goods::where('id',$goods_id)->where('status',0)->first(['promote_price','promote_start_date','promote_end_date','price']);
$final_price = $goods->price;
// 计算商品的促销价格
if ($goods->promote_price > 0)
{
$promote_price = self::bargain_price($goods->promote_price, $goods->promote_start_date, $goods->promote_end_date);
}
else
{
$promote_price = 0;
}
if ($promote_price != 0)
{
$final_price = $promote_price;
}
//返回商品最终购买价格
return $final_price;
}
/**
* 判断某个商品是否正在特价促销期
*
* @access public
* @param float $price 促销价格
* @param string $start 促销开始日期
* @param string $end 促销结束日期
* @return float 如果还在促销期则返回促销价,否则返回0
*/
public static function bargain_price($price, $start, $end)
{
if ($price == 0)
{
return 0;
}
else
{
$time = time();
if ($time >= $start && $time <= $end)
{
return $price;
}
else
{
return 0;
}
}
}
}