Question

朋友您好我是Yii2 Framework的新手。

我正在编写以下提及文件名中指定的代码....

虽然我正在调用模型方法，但未在控制台中显示 500错误的输出

代码中有任何错误，请在此提及..

SiteController.php

<?php

use yii\web\Controller;
use yii\data\Pagination;
use app\models\Site;

class SiteController extends CController
{
    // Define an action. actionIndex is a default action
    public function actionIndex()
    {   
        $data =  Site::models()->getData();    
        $this->render('view',array(
        'data'=>$data,
        ));

        // $this->render('view');
        }
  }

Site.php - 模型

<?php
namespace app\models;

use yii\db\ActiveRecord;

    class Site extends ActiveRecord
    {
        public function getData() {
              $connection = Yii::app()->db;
              $command = $connection->createCommand("Select * from site");
              return $caterow = $command->queryAll();
        }
        public static function tableName()
        {
            return 'site';
        }
    }

Answer 1

在没有models()

的情况下调用您的方法

$data =  Site::getData();

Answer 2

SiteController.php：

  $data =  Site::getData();

Site.php（Model）：确保该函数是静态的

public static function getData() {

    return "anything";
}

Answer 3

你好朋友，先谢谢大家的帮助现在我正在分享这段代码，现在已经完成，现在可以在mycase中使用。

我用以下代码解决了这个问题。现在试试这个完全正常的工作

<强> main.php

    <?php

// This is the main config file
// You should avoid placing configuration everywhere else
return array(
    // We have to enable Yii to load all the files we created
    'import'=>array(
        'application.models.*',
        'application.views.*',
                'application.components.*'
    ),

    // We set up SQLite database connection. It's a simple database
    // which does not require a separae server
    'components'=>array(
        'db'=>array(
            'class'=>'CDbConnection',
            'connectionString'=>'mysql:host=localhost;dbname=student',
            'username'=>'root',
            'password'=>'',
            'emulatePrepare'=>true,
            ),
    )
);

<强> SiteController.php

<?php

class SiteController extends CController
{
    /**
     * Lists all models.
     */
    public function actionIndex()
    {
                $s = new Site();
                $a = $s->getData();
        $this->render('view',array('a'=>$a));
    }

}

Site.php - 模型

<?php

class Site extends CActiveRecord
{
    /**
     * Returns the static model of the specified AR class.
     * @return static the static model class
     */
    public static function model()
    {
        return parent::model('Site');
    }

    /**
     * @return string the associated database table name
     */
    public function tableName()
    {
        return 'site';
    }

        public function getData(){
            return $result =  Site::model()->find();
        }


}

在Yii中使用呼叫模型方法

3 个答案: