Neuling - Yii2: Kann keine Daten anzeigen von Controller

Question

Neu zu Yii2 und lernen Sie einige Demo von Tutorials, versuchen, Code zu kopieren und auf meiner eigenen Demo zu verwenden, aber scheinen nicht zu funktionieren. Hier ist der Code:

Tutorial - Controller:

namespace app\controllers; 
use yii\web\Controller; 

use app\models\Article; 
use Yii; 

class ArticleController extends Controller{ 

    public function actionIndex(){ 

     $article = Article::find(); 

     //echo $article->count(); 

     $pagination = new \yii\data\Pagination(['totalCount'=>$article->count(), 'pageSize'=>3]); 
     $data = $article->offset($pagination->offset)->limit($pagination->limit)->all(); 
     //print_r($data); 

     return $this->render('index',['data' => $data, 'pagination' => $pagination]); 
    } 

Tutorial - Ausblick:

<?php 

    use yii\helpers\Url; 

?> 
<p style = "text-align:right"> 
    <a href="<?=Url::to(['add'])?>" class="btn btn-primary">ADD</a> 
</p> 


<table class="table table-hover"> 
    <tr> 
     <th>id</th><th>Title</th><th>Count</th><th>Status</th><th>Update Time</th><th>By</th> 
    </tr> 
    <?php print_r($data); foreach($data as $v){?> 
    <tr> 
     <td><?=$v->id?></td><td><?=$v->title?></td><td><?=$v->count?></td><td><?=($v->status == '1' ? 'Y' :'N')?></td> 
     <td><?=date("Y-m-d H:i:s",$v->update_date)?></td> 
     <td><a href="<?=Url::to(['edit', 'id'=>$v->id])?>">Edit</a> | <a href="<?=Url::to(['delete','id'=>$v->id])?>">Del</a></td> 
    </tr> 
    <?php }?> 
</table> 

<div style="float:right"> 
    <?=\yii\widgets\LinkPager::widget([ 
     'pagination' => $pagination, 
     'options' =>[ 
      'class' =>'pagination', 
      ], 
     ]) 
    ?> 
</div> 

Verwenden print_r ($ data), und es zeigt unter:

Array ([0] => app\models\Article Object ([_attributes:yii\db\BaseActiveRecord:private] => Array ([id] => 1 [flag] => 0 [title] => 13123OOOO [description] => tttt1 [content] => tstsets 
[count] => 1 [status] => 1 [update_date] => 1462291610 [date] => 0) [_oldAttributes:yii\db\BaseActiveRecord:private] => Array ([id] => 1 [flag] => 0 [title] => 13123OOOO 
[description] => tttt1 [content] => tstsets [count] => 1 [status] => 1 [update_date] => 1462291610 [date] => 0) [_related:yii\db\BaseActiveRecord:private] => Array () 
[_errors:yii\base\Model:private] => [_validators:yii\base\Model:private] => [_scenario:yii\base\Model:private] => default [_events:yii\base\Component:private] => Array () 
[_behaviors:yii\base\Component:private] => Array ()) 

Aber auf meinem eigenen Code: Controller:

namespace app\controllers; 
use yii\web\Controller; 

use app\models\Inventory; 

class InventoryController extends Controller{ 

    public function actionIndex(){ 

     //$inventory = new Inventory(); 
     $inventory = Inventory::find()->asArray()->all(); 
     print_r($inventory); 

     return $this->renderpartial('index',['inventory' => $inventory]); 
    } 

Ausblick:

<?php 
use yii\helpers\Html; 
use yii\helpers\Url; 

echo "<br>"; 
print_r($inventory); 
?> 
<h2>Inventory Status</h2> 
<table class = "table table-hover"> 
    <tr> 
     <th>ID</th><th>Model</th><th>Office</th><th>Warehouse</th> 
    </tr> 
    <tr> 
     <?php foreach($inventory as $item){ ?> 
     <tr> 
      <td><?=$item->id ?></td><td><?=$item->name ?></td><td><?=$item->office ?></td><td><?=$item->warehouse ?></td> 
     </tr> 
     <?php }?> 
    </tr> 
    <tr> 
     <td>?<td>Apple</td><td>1</td><td>2</td> 
    </tr> 
</table> 

Mein print_r ($ Inventar) ist wie folgt:

Array ([0] => Array ([id] => 1 [name] => Apple [office] => 1 [warehouse] => 2) [1] => Array ([id] => 2 [name] => Android [office] => 2 [warehouse] => 1)) 

Und verwenden foreach() {} kann aber keine Daten zeigen, wie man das Problem lösen?

Answer 1

In Ihrem Code haben Sie eine verschachtelte tr (versuchen zu entfernen)

<table class = "table table-hover"> 
    <tr> 
     <th>ID</th><th>Model</th><th>Office</th><th>Warehouse</th> 
    </tr> 

     <?php foreach($inventory as $item){ ?> 
     <tr> 
      <td><?=$item['id'] ?></td><td><?=$item['name'] ?></td><td><?=$item['office'] ?></td><td><?=$item['warehouse'] ?></td> 
     </tr> 
     <?php }?> 

    <tr> 
     <td>?<td>Apple</td><td>1</td><td>2</td> 
    </tr> 
</table>