Paginate for a simple loop - php

Question

I've got this code which simply displays all the posts for a particular author:
<?php
$all_active_tasks = get_posts(array(
'numberposts' => -1,
'offset' => 0,
'post_status' => 'publish',
'author' => '1',
'post_type' => 'post'
)
);
foreach($all_active_tasks as $post) :
$category = get_the_category();
setup_postdata($post);
?>
<div class="the-post">
<h2><?php the_title(); ?></h2>
<p><?php echo $category[0]->cat_name; ?></p>
</div>
<?php endforeach; ?>
<?php wp_reset_postdata(); ?>
But what I can't figure out is how to paginate the results to say 10 per page. I've looked at the official codex but nothing I tried seemed to work.
Any help is appreciated.

Answer 1

You can use paged together with posts_per_page parameters. WP_Query. You can grab current page like this:
$paged = get_query_var( 'paged' ) ?: ( get_query_var( 'page' ) ?: 1 );
and then use it in your query:
$all_active_tasks = get_posts(array(
'posts_per_page' => 10,
'post_status' => 'publish',
'author' => '1',
'post_type' => 'post',
'paged' => $paged
));
In this way if you put /page/2/ at the end of your url, the query will return the posts from 11 to 20.
How to create the pagination itself, you can check these articles:
here and here.

Answer 2

Setting 'numberposts' => -1 means to get all records. You have to set for the first 10 records (0-9 records)
'numberposts' => 10,
'offset' => 0,
And for next 10, (10-19 records)
'numberposts' => 10,
'offset' => 10,
And for next 10, (20-29 records)
'numberposts' => 10,
'offset' => 20,

Answer 3

Try this working code
put this function in functions.php file of your active theme
function custom_pagination($numpages = '', $pagerange = '', $paged='') {
if (empty($pagerange)) {
$pagerange = 2;
}
global $paged;
if (empty($paged)) {
$paged = 1;
}
if ($numpages == '') {
global $wp_query;
$numpages = $wp_query->max_num_pages;
if(!$numpages) {
$numpages = 1;
}
}
$pagination_args = array(
'base' => get_pagenum_link(1) . '%_%',
'format' => 'page/%#%',
'total' => $numpages,
'current' => $paged,
'show_all' => False,
'end_size' => 1,
'mid_size' => $pagerange,
'prev_next' => True,
'prev_text' => __('<i class="fa fa-angle-double-left"></i>'),
'next_text' => __('<i class="fa fa-angle-double-right"></i>'),
'type' => 'plain',
'add_args' => false,
'add_fragment' => ''
);
$paginate_links = paginate_links($pagination_args);
if ($paginate_links) {
echo "<div class='col-md-12'><nav class='custom-pagination pagination'>";
echo $paginate_links;
echo "</nav></div>";
}
}
and here is your modified code to work for pagination
<?php
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$all_active_tasks = get_posts(array(
'posts_per_page' => -1,
'paged' => $paged,
'offset' => 0,
'post_status' => 'publish',
'author' => '1',
'post_type' => 'post'
)
);
foreach($all_active_tasks as $post) :
$category = get_the_category();
setup_postdata($post);
?>
<div class="the-post">
<h2><?php the_title(); ?></h2>
<p><?php echo $category[0]->cat_name; ?></p>
</div>
<?php endforeach; ?>
<?php if (function_exists(custom_pagination)) {
custom_pagination(count($all_active_tasks),"",$paged);
}?>
<?php wp_reset_postdata(); ?>