Hi,
I need to sort the taxonomy terms I get from a Taxonomy custom field.
I have multiple selected term objects and I was just wondering if it’s possible to use the ‘orderby’ parameter or something similar.
I’ve found this but I don’t know how to apply to the Basic display (multiple values).
Thanks
Davide
I don’t think there is any automatic way to do this. The way I do it is that I add a field to the term editor page, usually called something like “sort_order”.
Then my code for sorting them will look something like this:
$taxonomy = 'my_taxonomy';
$args = array(); // whatever arguments you're using
$terms = get_terms($taxonomy, $args);
$count = count($terms);
for ($i=0; $i<$count; $i++) {
$terms[$i]->sort_order = get_field('sort_order', $taxonomy.'_'.$terms[$i]->term_id;
}
usort($terms, 'my_sort_terms_function';
the sorting function looks something like this:
function my_sort_terms_function($a, $b) {
// this function expects that items to be sorted are objects and
// that the property to sort by is $object->sort_order
if ($a->sort_order == $b->sort_order) {
return 0;
} elseif ($a->sort_order < $b->sort_order) {
return -1;
} else {
return 1;
}
}
Hi,
thanks for your solution.
After searching how to sort taxonomy terms in WordPress I haven’t found any solution except to use a plugin, so I opted for this plugin: http://wordpress.org/plugins/custom-taxonomy-order-ne/
and after changing the order I can have the taxonomy terms in the Taxonomy field sorted as I want.
Regards
Thanks Hube2,
your solution works like a charm!
Before I didn’t know how to re-order an array of terms objects.
A solution I came up with, was to use a repeater field and then within that repeater, use a single choice taxonomy select.
The user can then select a single taxonomy of your choice and reorder them in the repeater.
It’s not the nicest solution, as they could also add the same taxonomy’s, but hey-ho!
In the new version of ACF (5.5.x) now uses term meta and WP allows meta queries for terms, so these work-arounds should no longer be needed.
Hi John,
Could you please advise in light of your suggestion above with 5.5.x as to how I can modify the below to change the ordering?
$sub_categories = get_field('featured_categories');
foreach ($sub_categories as $sub_category):
echo $sub_category->name;
endif;
sub-category is a Taxonomy field with the return value as Term Object
@cargoodrich since it’s a taxonomy field you would need to use the filter provided by the taxonomy field to alter the call to get_terms https://www.advancedcustomfields.com/resources/acffieldstaxonomyquery/. To be honest I don’t know the exact solution.
Indeed, it’s not possible with get_terms (get_categories) args, cause final query contains “INNER JOIN wp_termmeta” but acf doesn’t use this table
So loop through it with usort()
the shortest variant for now is
usort($terms, function($a. $b) use ($taxonomy) {
return get_field('sort_order', $taxonomy.'_'.$a->term_id) - get_field('sort_order', $taxonomy.'_'.$b->term_id);
});
