<?php

namespace common\models;

/**
 * This is the model class for table "xhCart".
 *
 * @property integer $id
 * @property integer $userId
 * @property integer $merchantId
 * @property integer $goodsId
 * @property integer $num
 * @property string $createTime
 * @property string $updateTime
 */
class xhCart extends xhBaseModel
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'xhCart';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['userId', 'merchantId', 'goodsId', 'num', 'goodsPriceId'], 'integer'],
            [['createTime'], 'required'],
            [['createTime', 'updateTime'], 'safe'],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'userId' => 'User ID',
            'merchantId' => 'Merchant ID',
            'goodsId' => 'Goods ID',
            'goodsPriceId' => 'Goods Price Id',
            'num' => 'Num',
            'createTime' => 'Create Time',
            'updateTime' => 'Update Time',
        ];
    }
    
    public function getXhGoods()
    {
    	// 关系和商品通过 Goods.id -> goodsId 关联建立一对一关系
    	return $this->hasOne(xhGoods::className(), ['id' => 'goodsId']);
    }
    
}