如何在我的 yii2 项目中修复“调用数组上的成员函数 offset()”错误

Question

我想在我的博客页面中设置分页。在分页之前这个动作起作用。

    $data = [];
    $query = Blog::find()->where(['status'=>1])->multilingual()->orderBy(['id'=>SORT_DESC])->all();


   $count = count($query);


    $pagination = new Pagination(['totalCount' => $count]);

    // limit the query using the pagination and retrieve the articles
    $data['blog'] = $query->offset($pagination->offset)->limit($pagination->limit)->all();


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

每当我设置 PageSize 时，问题还没有解决。

Answer 1

您遇到错误是因为$query 变量包含记录数组而不是查询对象。如果你想修改查询，你可以保留它。

$query = Blog::find()->where(['status'=>1])->multilingual();

$count = $query->count();
$pagination = new Pagination(['totalCount' => $count]);

// limit the query using the pagination and retrieve the articles
$data['blog'] = $query->orderBy(['id'=>SORT_DESC])->offset($pagination->offset)->limit($pagination->limit)->all();


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

Answer 2

删除all()

$query = Blog::find()->where(['status'=>1])->multilingual()->orderBy(['id'=>SORT_DESC]);

$totalCount = clone $query;
$pagination = new Pagination(['totalCount' => count($totalCount->all())]);