pagination not showing on custom query (get_results) - wordpress-theming

Question

I followed this link and created my own custom query with pagination.. but I don't really understand how the offset works,
https://wordpress.stackexchange.com/questions/21626/pagination-with-custom-sql-query
the pagination does not work well. and I'm getting zero value for offset.
function spiciest(){
global $wpdb, $paged, $max_num_pages;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$post_per_page = intval(get_query_var('posts_per_page')); //6
$offset = ($paged - 1)*$post_per_page;
/* Custom sql here. I left out the important bits and deleted the body
as it will be specific when you have your own. */
$sql = "
SELECT DISTINCT * FROM $wpdb->posts
INNER JOIN (SELECT *, SUBSTRING(name, 6) as 'post_ID',
votes_up AS votes_balance,
votes_up + votes_down AS votes_total
FROM thumbsup_items) AS thumbsup
ON $wpdb->posts.ID = thumbsup.post_ID
WHERE $wpdb->posts.post_status = 'publish'
AND $wpdb->posts.post_type = 'post'
AND $wpdb->posts.post_password = ''
ORDER BY votes_up DESC, votes_balance DESC
LIMIT ".$offset.", ".$post_per_page."; ";
$sql_result = $wpdb->get_results( $sql, OBJECT);
/* Determine the total of results found to calculate the max_num_pages
for next_posts_link navigation */
$sql_posts_total = $wpdb->get_var( "SELECT FOUND_ROWS();" );
$max_num_pages = ceil($sql_posts_total / $post_per_page);
print_r("offset ". $offset."\n") ;
print_r("\n"."sql_posts_total ". $sql_posts_total."\n") ;
print_r("\n"."max_num_pages ". $max_num_pages."\n") ;
return $sql_result;
}
Please see it live.. I have printed the vlues.. http://goo.gl/fZTck
It should have 7 pages with a total of 39 entries.

Answer 1

The problem here is the LIMIT, it'll just count the first page and not the entire query.
I had solved it by providing a secondary SQL query for counting the max pages. thanks for my friends for this tip.
here's the complete code.
function.php
function spiciest(){
global $wpdb, $paged, $max_num_pages;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$post_per_page = intval(get_query_var('posts_per_page')); //6
$offset = ($paged - 1)*$post_per_page;
// query normal post
$query_spicy = "
SELECT DISTINCT * FROM $wpdb->posts
INNER JOIN (SELECT *, SUBSTRING(name, 6) as 'post_ID',
votes_up AS votes_balance,
votes_up + votes_down AS votes_total
FROM thumbsup_items) AS thumbsup
ON $wpdb->posts.ID = thumbsup.post_ID
WHERE $wpdb->posts.post_status = 'publish'
AND $wpdb->posts.post_type = 'post'
AND $wpdb->posts.post_password = ''
ORDER BY votes_up DESC, votes_balance DESC";
//query the posts with pagination
$spicy = $query_spicy . " LIMIT ".$offset.", ".$post_per_page."; ";
$spicy_results = $wpdb->get_results( $spicy, OBJECT);
// run query to count the result later
$total_result = $wpdb->get_results( $query_spicy, OBJECT);
$total_spicy_post = count($total_result);
$max_num_pages = ceil($total_spicy_post / $post_per_page);
return $spicy_results;
}
TEMPLATE CODES:
<?php
$spiciest = spiciest();
if ($spiciest):
global $post;
foreach ($spiciest as $post) :
setup_postdata($post);
?>
/**** PUT TEMPLATE TAGS HERE *****/
<?php
endforeach;
endif;
?>
and then the PAGINATION here, please note of the TOTAL in array.
global $wp_rewrite, $wp_query, $max_page, $page;
$wp_query->query_vars['paged'] > 1 ? $current = $wp_query->query_vars['paged'] : $current = 1;
$pagination = array(
'base' => #add_query_arg('page','%#%'),
'format' => '',
'total' => $max_num_pages,
'current' => $current,
'prev_text' => __('PREV'),
'next_text' => __('NEXT'),
'end_size' => 1,
'mid_size' => 2,
'show_all' => false,
'type' => 'list'
);
if ( $wp_rewrite->using_permalinks() )
$pagination['base'] = user_trailingslashit( trailingslashit( remove_query_arg( 's', get_pagenum_link( 1 ) ) ) . 'page/%#%/', 'paged' );
if ( !empty( $wp_query->query_vars['s'] ) )
$pagination['add_args'] = array( 's' => get_query_var( 's' ) );
echo paginate_links( $pagination );

Answer 2

Your variable $offset value is always the same.
So just replace
$offset = 1;
with:
$offset = ($paged - 1)*$post_per_page;