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+--- Thread: Invalid argument supplied for foreach() Pagination (/showthread.php?tid=77235)
Invalid argument supplied for foreach() Pagination - eleumas - 08-05-2020
Hi, this is my Controller:
PHP Code:
public function index()
{
$pager = \Config\Services::pager();
$articlesModel = new ArticlesModel();
$categoriesModel = new CategoriesModel();
$data = [
'title' => 'articoli',
'articles' => $articlesModel->orderBy('id', 'DESC')->findAll(),
'categories' => $categoriesModel->findAll(),
'pag' => $articlesModel->orderBy('id', 'DESC')->paginate(5),
'pager' => $articlesModel->pager,
];
echo view('articles/index', $data);
}
This is my view:
PHP Code:
<ul class="uk-pagination">
<?php foreach ($pager->links() as $link): ?>
<li><a href=""></a></li>
<?php endforeach; ?>
</ul>
I have this error: Invalid argument supplied for foreach()
Thanks for help me!
RE: Invalid argument supplied for foreach() Pagination - InsiteFX - 08-05-2020
To show the pagination links you just do this:
PHP Code:
<?= $pager->links();?>You use the foreach to output your database records.
RE: Invalid argument supplied for foreach() Pagination - eleumas - 08-05-2020
Thanks for reply!
If i want use custom classes for <ul> and <li> and to have the button NEXT and PREV?
I read this but doesn't work: https://codeigniter.com/user_guide/libraries/pagination.html#creating-the-view
RE: Invalid argument supplied for foreach() Pagination - InsiteFX - 08-05-2020
You need to create your own I have 2 custom bootstrap 4 pagers here I will post them for you
1) you need to edit app/Config/Pager and add the two lines below to the $templates array.
PHP Code:
'bs_full' => 'Pagers\bs_full',
'bs_simple' => 'Pagers\bs_simple',
2) Create a folder under your Views folder called Pagers and add these two views to ir
app/Views/Pagers
bs_full.php
PHP Code:
<?php
/**
* bs_full.php - Bootstrap 4 full Pager
* @var \CodeIgniter\Pager\PagerRenderer $pager
*/
$pager->setSurroundCount(2);
?>
<nav aria-label="<?= lang('Pager.pageNavigation') ?>">
<ul class="pager pagination justify-content-center">
<?php if ($pager->hasPreviousPage()) : ?>
<li class="page-item">
<a class="page-link" href="<?= $pager->getFirst() ?>" aria-label="<?= lang('Pager.first') ?>">
<span aria-hidden="true"><?= lang('Pager.first') ?></span>
</a>
</li>
<li class="page-item">
<a class="page-link" href="<?= $pager->getPreviousPage() ?>" aria-label="<?= lang('Pager.previous') ?>">
<span aria-hidden="true"><?= lang('Pager.previous') ?></span>
</a>
</li>
<?php endif ?>
<?php foreach ($pager->links() as $link) : ?>
<li <?= $link['active'] ? 'class="page-item active"' : '' ?>>
<a class="page-link" href="<?= $link['uri'] ?>">
<?= $link['title'] ?>
</a>
</li>
<?php endforeach ?>
<?php if ($pager->hasNextPage()) : ?>
<li class="page-item">
<a class="page-link" href="<?= $pager->getNextPage() ?>" aria-label="<?= lang('Pager.next') ?>">
<span aria-hidden="true"><?= lang('Pager.next') ?></span>
</a>
</li>
<li class="page-item">
<a class="page-link" href="<?= $pager->getLast() ?>" aria-label="<?= lang('Pager.last') ?>">
<span aria-hidden="true"><?= lang('Pager.last') ?></span>
</a>
</li>
<?php endif ?>
</ul>
</nav>
app/Views/Pagers
bs_simple.php
PHP Code:
<?php
/**
* bs_simple.php - Bootstrap 4 Simple Pager
* @var \CodeIgniter\Pager\PagerRenderer $pager
*/
$pager->setSurroundCount(0);
?>
<nav aria-label="Page Results">
<ul class="pager pagination justify-content-center">
<li <?= $pager->hasPrevious() ? 'class="page-item active"' : 'class="page-item disabled"' ?>>
<a class="page-link" href="<?= $pager->getPrevious() ?? '#' ?>" aria-label="<?= lang('Pager.previous') ?>">
<span aria-hidden="true"><?= lang('Pager.newer') ?></span>
</a>
</li>
<li <?= $pager->hasNext() ? 'class="page-item active"' : 'class="page-item disabled"' ?>>
<a class="page-link" href="<?= $pager->getnext() ?? '#' ?>" aria-label="<?= lang('Pager.next') ?>">
<span aria-hidden="true"><?= lang('Pager.older') ?></span>
</a>
</li>
</ul>
</nav>
to load them in the controller and view is a little different
Controller:
PHP Code:
->paginate(3, 'group1'),
And in the view you load it like this:
PHP Code:
<!-- Pagination -->
<div class="pagination justify-content-center mb-4">
<?php if ( ! empty($pager)) {
//echo $pager->simpleLinks('group1', 'bs_simple');
echo $pager->links('group1', 'bs_full');
} ?>
</div>
<br>
See the group1 in the Controller code and the View code.
The ( Justify-content-center ) In the <ul> is to center both Pagers you can remove it
if you do not want them centered.
That will show you how it is done.
RE: Pagination CodeIgniter 4 - eleumas - 08-07-2020
There is some error in your code in bs_full.php or something that doesn't work in my project because i have replace your code with the original code il CodeIgniter documentation and pagination work fine.
So, this is my code for pagination. I use UIkit framework and not Bootstrap. Change the HTML classes like you need.
/app/Config/Pager.php
PHP Code:
<?php namespace Config;
use CodeIgniter\Config\BaseConfig;
class Pager extends BaseConfig
{
/*
|--------------------------------------------------------------------------
| Templates
|--------------------------------------------------------------------------
|
| Pagination links are rendered out using views to configure their
| appearance. This array contains aliases and the view names to
| use when rendering the links.
|
| Within each view, the Pager object will be available as $pager,
| and the desired group as $pagerGroup;
|
*/
public $templates = [
'default_full' => 'CodeIgniter\Pager\Views\default_full',
'default_simple' => 'CodeIgniter\Pager\Views\default_simple',
'default_head' => 'CodeIgniter\Pager\Views\default_head',
'uk_full' => 'App\Views\pagers\uk_full',
'uk_simple' => 'App\Views\pagers\uk_simple',
];
/*
|--------------------------------------------------------------------------
| Items Per Page
|--------------------------------------------------------------------------
|
| The default number of results shown in a single page.
|
*/
public $perPage = 20;
}
/app/Views/pagers/uk_full.php
PHP Code:
<?php $pager->setSurroundCount(2); ?>
<nav aria-label="pagination">
<ul class="uk-pagination uk-flex-center">
<?php if ($pager->hasPreviousPage()) : ?>
<li>
<a href="<?= $pager->getFirst() ?>" aria-label="<?= lang('Pager.first') ?>">
<span aria-hidden="true"><?= lang('Pager.first') ?></span>
</a>
</li>
<li>
<a href="<?= $pager->getPreviousPage() ?>" aria-label="<?= lang('Pager.previous') ?>">
<span aria-hidden="true"><?= lang('Pager.previous') ?></span>
</a>
</li>
<?php endif ?>
<?php foreach ($pager->links() as $link) : ?>
<li <?= $link['active'] ? 'class="uk-active"' : '' ?>>
<a href="<?= $link['uri'] ?>">
<?= $link['title'] ?>
</a>
</li>
<?php endforeach ?>
<?php if ($pager->hasNextPage()) : ?>
<li>
<a href="<?= $pager->getNextPage() ?>" aria-label="<?= lang('Pager.next') ?>">
<span aria-hidden="true"><?= lang('Pager.next') ?></span>
</a>
</li>
<li>
<a href="<?= $pager->getLast() ?>" aria-label="<?= lang('Pager.last') ?>">
<span aria-hidden="true"><?= lang('Pager.last') ?></span>
</a>
</li>
<?php endif ?>
</ul>
</nav>
/app/Views/pagers/uk_simple.php
PHP Code:
<?php $pager->setSurroundCount(2); ?>
<nav aria-label="pagination">
<ul class="uk-pagination uk-flex-center">
<?php if ($pager->hasPreviousPage()) : ?>
<li>
<a href="<?= $pager->getFirst() ?>" aria-label="<?= lang('Pager.first') ?>">
<span aria-hidden="true"><?= lang('Pager.first') ?></span>
</a>
</li>
<li>
<a href="<?= $pager->getPreviousPage() ?>" aria-label="<?= lang('Pager.previous') ?>">
<span aria-hidden="true"><?= lang('Pager.previous') ?></span>
</a>
</li>
<?php endif ?>
<?php if ($pager->hasNextPage()) : ?>
<li>
<a href="<?= $pager->getNextPage() ?>" aria-label="<?= lang('Pager.next') ?>">
<span aria-hidden="true"><?= lang('Pager.next') ?></span>
</a>
</li>
<li>
<a href="<?= $pager->getLast() ?>" aria-label="<?= lang('Pager.last') ?>">
<span aria-hidden="true"><?= lang('Pager.last') ?></span>
</a>
</li>
<?php endif ?>
</ul>
</nav>
In your view (for example under the items table):
PHP Code:
<?php
if ( ! empty($pager))
{
//echo $pager->simpleLinks('group1', 'uk_simple');
echo $pager->links('group1', 'uk_full');
}
?>/app/Controllers/NAME_OF_YOUR_CONTROLLER.php
PHP Code:
public function index()
{
$pager = \Config\Services::pager();
$model = new \App\Models\ArticleModel();
$data = [
'articles' => $model->orderBy('id', 'DESC')->paginate(5, 'group1'),
'pager' => $model->pager,
];
echo view('articles/index', $data);
}
Enjoy!
