huahuibao/app-ghs/models/item/CreateDescForm.php

<?php
namespace ghs\models\item;

use bizGhs\item\classes\ItemClass;
use ghs\models\BaseForm;
use Yii;

/**
 * 创建花材描述表单模型
 */
class CreateDescForm extends BaseForm
{
    public $id;
    public $mainId;
    public $title;
    public $itemId;
    public $content;

    public function rules()
    {
        return [
            [['itemId'], 'required'],
            ['title', 'string', 'max' => 60],
            [['id', 'itemId', 'mainId'], 'integer'],
            ['itemId', 'validateItemId'],
            ['content', 'safe'],
        ];
    }

    public function attributeLabels()
    {
        return [
            'title' => '标题',
            'itemId' => '商品ID',
            'content' => '图文内容',
        ];
    }

    /**
     * 验证商品ID
     * @param $attribute
     */
    public function validateItemId($attribute)
    {
        if (!$this->hasErrors()) {
            $item = ItemClass::getById($this->itemId, true, 'mainId');
            if (empty($item) || $item->mainId != Yii::$app->controller->mainId) {
                $this->addError($attribute, '花材不存在或不属于当前商户');
            }
        }
    }
}