从cdbcommand Yii获取查询结果

Question

我一直试图从过去两个小时的查询中得到结果,在我的模型中我有这个

public function getQuotes()
        {            
            $data = Yii::app()->db->createCommand('Select fromm from city_fare_final');            
            $data->queryRow();            
            return $data ;
        }

在控制器中

    public function actionIndex()
{
    // renders the view file 'protected/views/site/index.php'
    // using the default layout 'protected/views/layouts/main.php'
            $model=new QuoteForm();

    if(isset($_POST['QuoteForm']))
    {
                $model->attributes=$_POST['QuoteForm'];

                if ($model->validate())
                {
                    $priceTable=new CityFareFinal;
                    $priceTable->fromm=$model->pickupL;
                    $priceTable->too=$model->dropoffL;                    
                    $priceTable->type_of_car=$model->type;                        
      this->render('result',array('model'=>$priceTable))                        
                }

                }
            else
            {
                $this->render('index',array('model'=>$model));                
            }
}

并在视图中

    <div id="moduleResult">                          
        <span><?php echo $model->getQuotes() ;?><------ Here</span>
    </div>     

但它总是给我一个错误说"类CDbCommand的对象无法转换为字符串",我该怎么做才能得到我的查询结果在模型中???

关心加布里埃尔

Answer 1

public function getQuotes()
        {            
            $data = Yii::app()->db->createCommand('Select fromm from city_fare_final');            
            $data->queryRow();            
            return $data ;
        }

你的getQuotes()返回Object of class CDbCommand:

+ You returned $data in the function instead of $data->queryRow(). 

顺便说一句,你不能echo用于array数据.下面的例子用于通过使用带有Yii的DAO从DB获取数据来查看:我想你有Person模型和Person控制器

在您的Person模型中:

function getData() {
    $sql = "SELECT * from Person";

    $data = Yii::app()->db
        ->createCommand($sql)
        ->queryAll();
    return $data;
}

在你的控制器中:

function index(){
    $data =  Person::model()->getData();

    $this->render('your_view',array(
    'data'=>$data,
    ));
}

在您的视图中:您可以使用foreach数据来回显数据中的项目array:

<?php foreach($data as $row): ?>
     //show something you want 
     <?php echo $row->name; ?>
<?php endforeach; ?>