Question

尝试在Yii2高级模板中重铸Yii 1.1应用程序，并在视图中显示相关模型数据。

已经搜索过有关此问题的答案，但据我所知，我正在遵循Yii2协议收集数据，而我见过的其他扩展示例都与例如GridView的

相关型号代码：

前端/配置/ main.php

return [
...
'components' => [
...
'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules'=> [
            'home' => 'page/home',
                '<alias:about>' => 'page/page',
                'page/<alias>' => 'page/page'
            ],
],

公共/模型/ page.php文件

namespace common\models;
use Yii;
/**
 * This is the model class for table "page".
...
 * The followings are the available model relations:
 * @property Content[] $contents
 */

class Page extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'page';
    }

...
    public function getContents()
    {
        return $this->hasMany(Content::className(), ['pageId' => 'id']);
    }
...

模型/普通/ Content.php

namespace common\models;

use Yii;

/**
 * This is the model class for table "content".
...
 * The followings are the available model relations:
 * @property Page $page
 */
class Content extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'content';
    }

...

    public function rules()
    {
        return [
            [['name', 'slug', 'pageId', 'content'], 'required'],
            [['pageId'], 'integer'],
            [['content'], 'string'],
            [['name', 'slug'], 'string', 'max' => 255],
            [['pageId'], 'exist', 'skipOnError' => true, 'targetClass' => Page::className(), 'targetAttribute' => ['pageId' => 'id']],
        ];
    }
...
    public function getPage()
    {
        return $this->hasOne(Page::className(), ['id' => 'pageId']);
    }

前端/控制器/ PageController.php

class PageController extends Controller
{
    ...

    public function actionPage($alias)
    {
        $model=$this->loadContent($alias);
    if ($alias == "home")
    {
       $news=$this->loadRecentNews();
    }
    $this->render('default',[
        'model'=>$model,
        'news'=>$news
    ]);
    }

...

    public function loadContent($page)
    {
    $pageModel = Page::find()->where(['slug'=>$page])->with('contents')->all();
    if($pageModel===null)
        throw new CHttpException(404,'The requested Page could not be found.');
    return $pageModel;
    }

    public function loadRecentNews()
    {
    $newsModel = News::find()->orderBy('create_time DESC')->limit(2)->all();
    return $newsModel;
    }

frontend / views / page / default.php（失败的部分）

<?php foreach ($model->contents as $content) { ?>
    <h3><?php echo $content->name; ?></h3>
    <?php echo $content->content; ?>
<?php } ?>

无法绘制相关的模型数据，得到无效的foreach参数

0 个答案: