[英]Yii Class CActiveDataProvider not found
I'm new to Yii, and I'm getting this error "Class 'app\\controllers\\CActiveDataProvider' not found" while running a widget. 我是Yii的新手,运行小部件时遇到此错误“找不到类'app \\ controllers \\ CActiveDataProvider'”。
This is my code: 这是我的代码:
models/industrial.php: models / industrial.php:
<?php
namespace app\models;
use yii\db\ActiveRecord;
class Industrial extends ActiveRecord
{
}
controllers/IndustrialController.php: controllers / IndustrialController.php:
<?php
namespace app\controllers;
use yii\web\Controller;
use yii\data\Pagination;
use app\models\industrial;
class IndustrialController extends Controller
{
public function actionIndex()
{
$dataProvider=new CActiveDataProvider('Industrial', array(
'pagination'=>array(
'pageSize'=>20,
),
));
$query = industrial::find();
$pagination = new Pagination([
'defaultPageSize' => 20,
'totalCount' => $query->count(),
]);
$industrials = $query->orderBy('Company_Name')
->offset($pagination->offset)
->limit($pagination->limit)
->all();
return $this->render('index', [
'industrials' => $industrials,
'pagination' => $pagination,
'dataProvider'=>$dataProvider,
]);
}
}
views/industrial/index.php: views / industrial / index.php:
<?php
use yii\helpers\Html;
use yii\widgets\LinkPager;
?>
<h1>Industrial Companies</h1>
<ul>
<?php
use kartik\export\ExportMenu;
use kartik\grid\GridView;
$gridColumns = [
['class' => 'yii\grid\SerialColumn'],
'id',
'name',
[
'attribute'=>'Name',
'label'=>'Name',
'vAlign'=>'middle',
'width'=>'190px',
'value'=>function ($model, $key, $index, $widget) {
return Html::a($model->Name, '#', []);
},
'format'=>'raw'
],
'Name',
'Location',
'Telephone',
];
echo ExportMenu::widget([
'dataProvider' => $dataProvider,
'columns' => $gridColumns,
'fontAwesome' => true,
'dropdownOptions' => [
'label' => 'Export All',
'class' => 'btn btn-default'
]
]) . "<hr>\n".
GridView::widget([
'dataProvider' => $dataProvider,
'columns' => $gridColumns,
'export' => [
'fontAwesome' => true,
]
]);
$array = (array) $industrials;
function build_table($array){
// start table
$html = '<table class="altrowstable" id="alternatecolor">';
// header row
$html .= '<tr>';
foreach($array[0] as $key=>$value){
$html .= '<th>' . $key . '</th>';
}
$html .= '</tr>';
// data rows
foreach( $array as $key=>$value){
$html .= '<tr>';
foreach($value as $key2=>$value2){
$html .= '<td>' . $value2 . '</td>';
}
$html .= '</tr>';
}
// finish table and return it
$html .= '</table>';
return $html;
}
echo build_table($array);
?>
<?= LinkPager::widget(['pagination' => $pagination]) ?>
What is the problem here? 这里有什么问题? Could you please help me?
请你帮助我好吗?
我解决了在控制器的开头添加此内容的问题:
use yii\data\ActiveDataProvider;
I believe your issue is caused by your use of namespaces, which Yii 1.1 does not use. 我相信您的问题是由您使用命名空间引起的,Yii 1.1并未使用该命名空间。 Because you declared the namespace to be
app/controllers
, the CActiveDataProvider
is looked for within that namespace, instead of in the global namespace; 因为您
CActiveDataProvider
命名空间声明为app/controllers
,所以将在该命名空间内而不是在全局命名空间中查找CActiveDataProvider
。 specifically, it is looking for the class file in the app/controllers directory. 具体来说,它正在app / controllers目录中寻找类文件。
To resolve this, try referencing the class as \\CActiveDataProvider
to cause it to look for the class using Yii's autoloader. 要解决此问题,请尝试将类引用为
\\CActiveDataProvider
以使其使用Yii的自动加载器查找该类。
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