Recently I've done a nice taxonomy system on my WordPress website. Created also the taxonomy archive template files, so wherever I'm listing the taxonomies I can click on them and will bring me on a results page filtered by the clicked taxonomy.
I'm wondering if the same situation can be reproduced also with custom fields? I know custom fields are different by hierarchical tackle, but just wondering.
WordPress does not support by default custom_fields archive like for taxonomies (yeah, taxonomies can have categories) but we can create a destination page with page template (linked from the listed custom_field) and added a searching on the custom_field, like this (from the listing page):
<?php
if (get_post_meta($post->ID,'_my_meta',TRUE)) :
$key_meta = get_post_meta($post->ID,'_my_meta',TRUE);
endif;
?>
<a href="<?php bloginfo('url'); ?>/?s=<?php echo $key_meta[meta_field]; ?>"><?php echo $key_meta[meta_field]; ?></a>
The destination page's layout we can customize by preferences.