Taxonomy terms not showing up in select field (get_field_object)

• rainerd_

• November 9, 2016 at 1:26 am

I would really appreciate any help on my issue, I am not a pro 😉

I created a taxonomy field for a custom post types taxonomy and simply want to display all options with a select dropdown within a custom form I have created (not with acf or a plugin). I used the code I found in the docs here. It works fine with a regular select field, but it is displaying an empty dropdown using the taxonomies field key:

<?php
$field_key = “field_5820f0c21ed72″;
$field = get_field_object($field_key);

if( $field )
{
echo ‘<select name=”‘ . $field[‘key’] . ‘”>’;
foreach( $field[‘choices’] as $k => $v )
{
echo ‘<option value=”‘ . $k . ‘”>’ . $v . ‘</option>’;
}
echo ‘</select>’;
}

?>

Any suggestions? Thanks a lot

• Stormwind

• November 10, 2016 at 2:27 pm

The taxonomy field does not have an array of ‘choices’, like the select field does, because the choices are loaded from the database, they are not typed out in the ACF configuration.

You should use a database query for this:

global $wpdb;
$customTaxonomy = 'category';

$sql = "
	SELECT
		te.term_id,
		te.name
	FROM $wpdb->terms te
	LEFT JOIN $wpdb->term_taxonomy tt
	ON tt.term_id = te.term_id
	WHERE tt.taxonomy = '$customTaxonomy'
";

$taxonomies = $wpdb->get_results( $sql, ARRAY_A );

if ( $taxonomies ) {
	echo '<select name="somename">';
	foreach( $taxonomies as $item ) {
		echo '<option value="' . $item['term_id'] . '">' . esc_html( $item['name'] ) . '</option>';
	}
	echo '</select>';
}

• rainerd_

• November 10, 2016 at 7:10 pm

Thanks a lot!