Yii Class 未找到 CActiveDataProvider
Yii Class CActiveDataProvider not found
我是 Yii 的新手,我在 运行 一个小部件时收到此错误 "Class 'app\controllers\CActiveDataProvider' not found"。
这是我的代码:
models/industrial.php:
<?php
namespace app\models;
use yii\db\ActiveRecord;
class Industrial extends ActiveRecord
{
}
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:
<?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]) ?>
这里有什么问题?你能帮帮我吗?
我认为您的问题是由于您使用了 Yii 1.1 不使用的名称空间引起的。因为您将命名空间声明为 app/controllers
,所以会在该命名空间内查找 CActiveDataProvider
,而不是在全局命名空间中;具体来说,它正在 app/controllers 目录中寻找 class 文件。
要解决此问题,请尝试将 class 引用为 \CActiveDataProvider
以使其使用 Yii 的自动加载器查找 class。
我解决了在控制器开头添加这个的问题:
use yii\data\ActiveDataProvider;
我是 Yii 的新手,我在 运行 一个小部件时收到此错误 "Class 'app\controllers\CActiveDataProvider' not found"。
这是我的代码:
models/industrial.php:
<?php
namespace app\models;
use yii\db\ActiveRecord;
class Industrial extends ActiveRecord
{
}
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:
<?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]) ?>
这里有什么问题?你能帮帮我吗?
我认为您的问题是由于您使用了 Yii 1.1 不使用的名称空间引起的。因为您将命名空间声明为 app/controllers
,所以会在该命名空间内查找 CActiveDataProvider
,而不是在全局命名空间中;具体来说,它正在 app/controllers 目录中寻找 class 文件。
要解决此问题,请尝试将 class 引用为 \CActiveDataProvider
以使其使用 Yii 的自动加载器查找 class。
我解决了在控制器开头添加这个的问题:
use yii\data\ActiveDataProvider;