Get data of all posts of a query before pagination

Question

I am trying to build a classic archive page with 10 posts per page. But with a list of all the posts of this archive to be displayed on top of the classic loop.

(The paginated posts would display feature image, excerpt... while the list of all post would retain only the permalink)

I keep on thinking I could use the global loop already processed and hook just before pagination to get data and then let it paginate.

But I can't find how so far.

Another solution would be to run 2 loops on the page, one with pagination and one without, but the first method is probably better and possible, I think....

Did you guys ever came across similar issue? Any suggestion to this problem?

Answer 1

If you want to accomplish it in a single query, hook pre_get_posts to query for all posts:

function wpd_archive_all_posts( $query ){
    if( $query->is_post_type_archive( 'attractions' ) && $query->is_main_query() )
        $query->set( 'posts_per_page', -1 );
}
add_action( 'pre_get_posts', 'wpd_archive_all_posts' );

Then paginate those results manually in the template:

if( have_posts() ){

    $posts_per_page = 10;
    $paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
    $start = ( ( $paged - 1 ) * $posts_per_page ) - 1;
    $end = ( $paged * $posts_per_page ) - 1;
    $wp_query->current_post = $start;

    while( have_posts() ){
        the_post();

        // output post data here

        if( $end == $wp_query->current_post )
            break;

    }

}

Then rewind and output all of them:

$wp_query->rewind_posts();
while( have_posts() ){
    the_post();
    the_title();
}

The caveat here is that the first loop may not call the loop_end action, since you could be ducking out of the loop before hitting the last post. In practice this may or may not have side effects, depending on whether or not you have a plugin hooking that action.

Answer 2

Pulled directly from wordpresses codex:

// main loop
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php the_content(); ?>
<?php endwhile; endif; ?>


// rewind
<?php do something with query_posts() here to modify the loop here. ?>
<?php rewind_posts(); ?>

// new loop
<?php while (have_posts()) : the_post(); ?>
<?php the_content(); ?>
<?php endwhile; ?>

Note, the rewind_posts() does just that, it rewinds the post loop to the beginning, allowing you to loop through it a second time.

However, if what you're wanting is 2 somewhat different lists, ie: the first loop is a list of 100 posts, and the second is a paged list of only 10 posts per page, you can use query_posts() to alter the query before you run it a second time. It's generally not advisable to use query_posts(), as it alters the main loop, but in situations like this, it will be your best bet.

Answer 3

Well I'm not sure it's the best solution, while monitoring it does less queries than a standard archive page? maybe because I didn't call the meta like author and date... If anyone have a real anwer please let me know Cheers

//first the main loop paginated:
if ( have_posts() ) :
while ( have_posts() ) : the_post();
    //get permalink, title,custom metas and feature image
else :
    get_template_part( 'content', 'none' );
endif;
//then I run the second loop for all posts of the Custom Post Type
$args = array(
        'post_type'  => 'attractions',
        'post_status' =>    'publish',
        'posts_per_page'=>-1
    );
$wp_query = new WP_Query($args);
while ( $wp_query->have_posts() ) : $wp_query->the_post();
    //get datas of all posts
endwhile; wp_reset_postdata();