Pagination with array in yii2 - php

Question

I want to use pagination in my view, but I can't figure out how to do it in conjunction with the find() method.
Getting the numbers of pages works correctly, but it always displays all values from the database. I want to see 15 comments per page.
Here is my ViewAction controller:
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'=> $pagination
]);
}
And this is how I get the comments:
public static function findComment($id)
{
if (($model = UrUser::findOne($id)) !== null) {
$Id=$model->Id;
$comment = UrComment::find()->where(['Rel_User' => $Id])->all();
return $comment;
} else {
throw new NotFoundHttpException('The requested page does not exist.');
}
}
I tried to use this:
public function actionView($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
]);
}
But I get this error:
Call to a member function offset() on array
Then I display it in the view:
<?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' => $pagination,
]);
?>
</div>
</div>
</div>
How can I limit the UrComment::findComment($id) using the pagination?
EDIT:
I think I understand you, and I think I've done everything you told me in your answer, but now I have another problem. I need to display under view comments only that which is id view only this one person not all comments.
Here is what I have now:
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;
}
}
View:
<?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>
And my item comments:
<?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>
Using that code, now I have error that in this item in button edit:
$comment->Id], ['class' => 'btn btn-primary']) ?>
Trying to get property of non-object
And I can't use foreach there because I have duplicate comments. Should change something in comment Search or in my function findComment(id) inquiry?
There is my actual item 'comments' where I want to display text of comments and buttons to edit and delete comment. But this does not work for me. I have:
Use of undefined constant Id - assumed 'Id'
and
Use of undefined constant Text - assumed 'Text';
<?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

If you use model and foreach in not easy, use pagination because pagination if base on dataProvider and not directly for model ..
Essentially finding the model like you did mean work direclty on the data while pagination don't work directly on the data but rather use the a sql query for retrive information from db a let these available to widgets .. this is what the dataProvider perform .. .. then I suggest you of use a widget like ListView and change your query based on a find with a dataProvider based on a modelSearch ..
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,
]);
and for view.php
<?php
echo ' <h1>User : ' . $model->userName . '</h1>';
echo '<h2>Comments</h2'>,
echo ListView::widget([
'dataProvider' => $dataProvider,
'itemView' => '_comment',
]);
where _comment is a partial view of you comment layout .,.
then in _comment.php you can simply
<?=$model->id;?>
<?=$model->text;?>