Question

我想在我的视图中使用分页，但我无法弄清楚如何与find()方法一起使用。

获取页数正常，但它始终显示数据库中的所有值。我希望每页看到15条评论。

这是我的ViewAction控制器：

 public function actionView($id) {
     $query = UrComment::find()->where(['IsDeleted' => 0]);

     $pagination = new Pagination(['totalCount' => $query->count(), 'pageSize'=>12]);
     return $this->render('view', [
            'model' => $this->findOneModel($id),
            'comment' => UrComment::findComment($id),
            'pagination'=> $pagination
     ]);
}

这就是我收到评论的方式：

public static function findComment($id)
{
    if (($model = UrUser::findOne($id)) !== null) {
        $Id=$model->Id;
        $comment = UrComment::find()->where(['Rel_User' => $Id])->all();
        return $comment;
    } else {
        throw new NotFoundHttpException('The requested page does not exist.');
    }
}

我试着用这个：

public function actionView($id) {
    $query = UrComment::find()->where(['IsDeleted' => 0]);
    $pagination = new Pagination(['totalCount' => $query->count(), 'pageSize'=>12]);
    $comment= UrComment::findComment($id);
    $comment->offset($pagination->offset)
        ->limit($pagination->limit)
        ->all();

    return $this->render('view', [
                'model' => $this->findOneModel($id),
                'comment' =>$comment,
                'pagination'=> $pagination
    ]);
}

但是我收到了这个错误：

调用数组
上的成员函数offset（）

然后我在视图中显示它：

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\helpers\Url;
/* @var $this yii\web\View */
/* @var $model backend\modules\users\models\UrUser */

$this->title = $model->Name;
$this->params['breadcrumbs'][] = ['label' => Yii::t('app', 'Użytkownicy'), 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="ur-user-view">

    <h1><?= Html::encode($this->title) ?></h1>

    <p>
        <?= Html::a(Yii::t('app', 'Aktualizuj'), ['update', 'id' => $model->Id], ['class' => 'btn btn-primary']) ?>
        <?=
        Html::a(Yii::t('app', 'Usuń'), ['delete', 'id' => $model->Id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('app', 'Jesteś pewien, że chesz usunąć tego użytkownika?'),
                'method' => 'post',
            ],
        ])
        ?>
    </p>

    <?=
    DetailView::widget([
        'model' => $model,
        'attributes' => [
            'Id',
            'Name',
            'Surname',
            'BirthDate',
            'Login',
            'Email:email',
            ['attribute' => 'Rel_Sex', 'value' => (isset($model->relSex->Name)? $model->relSex->Name : "Nie wybrano")],
            ['attribute' => 'Rel_Language', 'value' => (isset($model->relLanguage->Name)) ? $model->relLanguage->Name : "Nie wybrano"],
            ['attribute' => 'Rel_Country', 'value' => (isset($model->relCountry->Name)) ? $model->relCountry->Name : "Nie wybrano"],
            ['attribute' => 'Rel_Category', 'value' => (isset($model->relUserCategory->Name)) ? $model->relUserCategory->Name : "Nie wybrano"],
        ],
    ])
    ?>

Komentarze użytkownika: <?= $model->Name.' '.$model->Surname;?><br><br>


    <?php foreach ($comment as $comm): ?>

     <?= Html::a(Yii::t('app', 'Edytuj'), ['update-user-comment', 'id' => $comm->Id], ['class' => 'btn btn-primary']) ?>
        <?=
        Html::a(Yii::t('app', 'Usuń'), ['delete-comment', 'id' => $comm->Id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('app', 'Jesteś pewien, że chesz usunąć tego użytkownika?'),
                'method' => 'post',
            ],
        ])
        ?>
            <p><?= $comm->Text ?></p>

    <hr>
    <?php endforeach; ?>
<?php
   echo \yii\widgets\LinkPager::widget([
    'pagination' => $pagination,
]);
?>

</div>
</div>    
</div>

如何使用分页限制UrComment::findComment($id)？

编辑：

我想我理解你，我想我已经完成了你在答案中告诉我的所有事情，但现在我又遇到了另一个问题。我需要在视图注释下只显示id，只查看这一个人而不是所有注释。

以下是我现在所拥有的：

的ActionView：

public function actionView($id) {
    $searchModel = new CommentSearch();
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
    $dataProvider->query->andWhere(['IsDeleted' => 0]);
    $dataProvider->pagination->pageSize=15;

    return $this->render('view', [
                'model' => $this->findOneModel($id),
                'comment' => UrComment::findComment($id),
                'searchModel' => $searchModel,
                'dataProvider' => $dataProvider,
    ]);
}

CommentSearch：

<?php

namespace backend\modules\users\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use common\models\UrComment;

class CommentSearch extends UrComment
{        
    public function rules() {
        return [
            [['Id'], 'integer'],
            [['Text'], 'safe'],           
        ];
    }

    public function scenarios() {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    public function search($params) {
        $query = UrComment::find();

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        ]);

        $this->load($params);

        if (!$this->validate()) {
            // uncomment the following line if you do not want to return any records when validation fails
            // $query->where('0=1');
            return $dataProvider;
        }

        $query->andFilterWhere([
            'Id' => $this->Id,
            'Text' => $this->Text,                
        ]);

        $query->andFilterWhere(['like', 'Text', $this->Text]);

        return $dataProvider;
    }
}

查看：

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\helpers\Url;
use yii\widgets\ListView;
/* @var $this yii\web\View */
/* @var $model backend\modules\users\models\UrUser */

$this->title = $model->Name;
$this->params['breadcrumbs'][] = ['label' => Yii::t('app', 'Użytkownicy'), 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="ur-user-view">

    <h1><?= Html::encode($this->title) ?></h1>

    <p>
        <?= Html::a(Yii::t('app', 'Aktualizuj'), ['update', 'id' => $model->Id], ['class' => 'btn btn-primary']) ?>
        <?=
        Html::a(Yii::t('app', 'Usuń'), ['delete', 'id' => $model->Id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('app', 'Jesteś pewien, że chesz usunąć tego użytkownika?'),
                'method' => 'post',
            ],
        ])
        ?>
    </p>

    <?=
    DetailView::widget([
        'model' => $model,
        'attributes' => [
            'Id',
            'Name',
            'Surname',
            'BirthDate',
            'Login',
            'Email:email',
            ['attribute' => 'Rel_Sex', 'value' => (isset($model->relSex->Name)? $model->relSex->Name : "Nie wybrano")],
            ['attribute' => 'Rel_Language', 'value' => (isset($model->relLanguage->Name)) ? $model->relLanguage->Name : "Nie wybrano"],
            ['attribute' => 'Rel_Country', 'value' => (isset($model->relCountry->Name)) ? $model->relCountry->Name : "Nie wybrano"],
            ['attribute' => 'Rel_Category', 'value' => (isset($model->relUserCategory->Name)) ? $model->relUserCategory->Name : "Nie wybrano"],
        ],
    ])
    ?>
Komentarze użytkownika: <?= $model->Name.' '.$model->Surname;?><br><br>
<?php    
  echo ListView::widget([
   'dataProvider' => $dataProvider,
   'itemView' => 'comments',
   'viewParams' => ['comment' => $comment, 'model'=>$model],
]);
?>
</div>
</div> 
</div>

我的项目评论：

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\helpers\Url;
/* @var $this yii\web\View */
/* @var $model backend\modules\users\models\UrUser */


?> 
     <?= Html::a(Yii::t('app', 'Edytuj'), ['update-user-comment', 'id' => $comment->Id], ['class' => 'btn btn-primary']) ?>
        <?=
        Html::a(Yii::t('app', 'Usuń'), ['delete-comment', 'id' => $comment->Id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('app', 'Jesteś pewien, że chesz usunąć tego użytkownika?'),
                'method' => 'post',
            ],
        ])
        ?>
            <p><?= $comment->Text ?></p>

    <hr>

使用该代码，现在我在按钮编辑的这个项目中有错误：

$ comment-＆gt; Id]，[＆＃39; class＆＃39; =＆GT; ＆＃39; btn btn-primary＆＃39;]）？＆gt;
尝试获取非对象的属性

我无法使用foreach，因为我有重复的评论。应该在评论搜索或我的函数findComment(id)查询中更改某些内容吗？

有我的实际项目＆＃39;评论＆＃39;我想在哪里显示评论文本和按钮来编辑和删除评论。但这对我不起作用。我有：

使用未定义的常数Id - 假设＆＃39; Id＆＃39;

和

使用未定义的常量文本 - 假设＆＃39;文字＆＃39;;

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;
use yii\helpers\Url;
/* @var $this yii\web\View */
/* @var $model backend\modules\users\models\UrUser */


?> 
     <?= Html::a(Yii::t('app', 'Edytuj'), ['update-user-comment', 'id' => Id], ['class' => 'btn btn-primary']) ?>
        <?=
        Html::a(Yii::t('app', 'Usuń'), ['delete-comment', 'id' => Id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('app', 'Jesteś pewien, że chesz usunąć tego użytkownika?'),
                'method' => 'post',
            ],
        ])
        ?>
            <p><?= Text ?></p>
    <hr>

Answer 1

如果你使用模型和foreach不容易，请使用分页，因为分页如果基于dataProvider而不是直接用于模型..

基本上找到像你这样的模型意味着对数据工作直接，而分页不直接对数据起作用，而是使用sql查询从db获取反向信息a让这些可用于小部件..这就是dataProvider执行.. ..然后我建议你使用像ListView这样的小部件，并根据一个基于modelSearch的dataProvider查找更改你的查询..

public function actionView($id) {
    $searchModel = new UrCommentSearch();
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
    $dataProvider->query->andWhere(['IsDeleted' => 0]);
    $dataProvider->pagination->pageSize=15;

    return $this->render('view', [
        'model' => $this->findOneModel($id),
        'searchModel' => $searchModel,
        'dataProvider' => $dataProvider,
    ]);

和view.php

<?php 

echo ' <h1>User :  ' .  $model->userName . '</h1>';

echo '<h2>Comments</h2'>,

echo ListView::widget([

   'dataProvider' => $dataProvider,
   'itemView' => '_comment',
]);

其中_comment是评论布局的部分视图。

然后在_comment.php中你可以简单地

<?=$model->id;?> 
<?=$model->text;?>

在yii2

1 个答案: