[Resolved] custom queries using offset, pagination issue

[John]

Hi, my category pages look like this:

query-loop which outputs the first 4 posts.

And a regular query which outputs the rest of the posts with offset 4.

For offset this snippet is used:

add_action('pre_get_posts', 'the_modified_loop', 10);

function the_modified_loop($query){
    if( $query->is_main_query() && !is_admin() && $query->is_category() ) {
        $query->set( 'offset', 4 );
    }
}

Everything works fine, except the pagination: the same content is displayed on the following pages. https://codex.wordpress.org/Making_Custom_Queries_using_Offset_and_Pagination tried to apply this manual, but it didn’t work.

Could you please help me?

Thanx.

[David]

Hi there,

yeah offset and pagination creates a whole lot issues. And a lot more code.
See Toms reply here:

https://generatepress.com/forums/topic/follow-up-different-number-of-posts-on-paged-archives/page/2/#post-2060199

Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/

[John]

add_action('pre_get_posts', 'myprefix_query_offset', 1 );
function myprefix_query_offset(&$query) {

    //Before anything else, make sure this is the right query...
    if ( ! $query->is_category() || !$query->is_main_query() ) {
        return;
    }

    //First, define your desired offset...
    $offset = 4;
    
    //Next, determine how many posts per page you want (we'll use WordPress's settings)
    $ppp = get_option('posts_per_page');

    //Next, detect and handle pagination...
    if ( $query->is_paged ) {

        //Manually determine page query offset (offset + current page (minus one) x posts per page)
        $page_offset = $offset + ( ($query->query_vars['paged']-1) * $ppp );

        //Apply adjust page offset
        $query->set('offset', $page_offset );

    }
    else {

        //This is the first page. Just use the offset...
        $query->set('offset',$offset);

    }
}

add_filter('found_posts', 'myprefix_adjust_offset_pagination', 1, 2 );
function myprefix_adjust_offset_pagination($found_posts, $query) {

    //Define our offset again...
    $offset = 4;

    //Ensure we're modifying the right query object...
    if ( $query->is_category() && $query->is_main_query() ) {
        //Reduce WordPress's found_posts count by the offset... 
        return $found_posts - $offset;
    }
    return $found_posts;
}

this code helped me.

[David]

Glad to hear that!!

Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/

[Author]

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