Question

this is what i would like to do…
In my site,each post can have several pictures, but also each post has an attached picture called: thumbnail {name of my post}, this specific picture was attached to the post with the multimedia gallery, and the objective of this picture is to appear in the category list.

<article>
    <p class="the-picture"><img src="url-of-the-picture" /></a>
    <p class="the-post-title"><a href="url-of-the-post">The post title</a></p>
    <p class="the-post-excerpt">The post excerpt</p>
</article>

So basically that’s what i want to do, Maybe using get_post() but i can’t figure out how to do it from outside the post.
Thanks for your help

Answer 1

Ok… here is what I found so far:
The following code will get me the category i’m on:

global $wp_query;
global $wpdb;
$cat = get_category( get_query_var( 'cat' ) );

So, now with the category i can list all the posts:

$posts = get_posts( array( 'category' => $_GET[ 'cat' ] ) );

And for each post i can do this:

$attachment_id = $wpdb->get_var('
    SELECT ID 
    FROM ' . $wpdb->posts . ' 
    WHERE post_parent = "' . $record->ID . '" AND post_status = "inherit" AND post_type="attachment" AND post_title LIKE "thumb%" 
    ORDER BY post_date DESC 
    LIMIT 1');
$thumb = wp_get_attachment_image_src( $attachment_id, array( 90, 117 ) );
$the_icon = '<img src="' . $thumb[0] . '" width="' . $thumb[1] . '" height="' . $thumb[2] . '" />';

So, basically what i’m doing is looking for the ID of the child post which is marked as the thumbnail of the post and retrieving its information into $thumb. The answer that moraleida gave me was a nice start for my research. Thanks a lot.