qimall/addons/WechatVideoShop/console/controllers/FixController.php

<?php

namespace addons\WechatVideoShop\console\controllers;

use addons\WechatVideoShop\common\models\WechatVideoShopExpressTemplate;
use yii\console\Controller;

class FixController extends Controller
{
    public function actionExpressTemplate()
    {
        /**
         * @var $each WechatVideoShopExpressTemplate
         */
        foreach (WechatVideoShopExpressTemplate::find()->where('==', 't_hash', '')->each() as $each) {
            $t_hash = json_encode($each->content);
            $each->t_hash = $t_hash;
            if (!$each->save()) {
                var_dump($each->getErrorMessage());
            }
        }
    }
}