For anyone else trying to do this, you can get the field key with:
$field.data('key')
Now you can do something like this:
if ($field.data('key') == 'field_609a8f6d92e06') {
args.palettes = [ "#F00", "#0F0", "#00F" ];
} else if ($field.data('key') == 'field_60a64e4b2f452') {
args.palettes = [ "#FF0", "#0FF", "#F0F" ];
}
I was getting 500 errors:
Uncaught ArgumentCountError: Too few arguments to function my_acf_upload_prefilter(), 1 passed in xxx/wp-includes/class-wp-hook.php on line xxx and exactly 3 expected
because this line:
add_filter('acf/upload_prefilter/name=my_acf_upload_fieldname', 'my_acf_upload_prefilter');
needs the number of parameters:
add_filter('acf/upload_prefilter/name=my_acf_upload_fieldname', 'my_acf_upload_prefilter', 10, 3);
Sorry to dig up an old post, but I can’t seem to get this to work with sub fields (through a repeater).
I know John suggested the field key on another thread but I’ve had no luck.
Just make sure that my_acf_upload_fieldname is your sub_field name (this should be a File field), not the repeater field name.
It turns out you can call acf_update_field with almost the same parameters as acf_add_local_field, except I just had to pass the parent as a post_id. Here’s the (simplified) code that I used:
function get_acf_group_id($group_name){
global $wpdb;
return $wpdb->get_var("
SELECT ID
FROM $wpdb->posts
WHERE post_type='acf-field-group' AND post_excerpt='$group_name';
");
}
function my_field_registration( $value, $post_id, $field ) {
if ( $field['name'] == 'my_triggering_field' ) {
if ( $some_condition ) {
$args = array(
'key' => 'field_' . uniqid();,
'label' => 'Field label',
'name' => 'my_new_field_name',
'type' => 'number',
'parent' => get_acf_group_id('my-field-group-name') // hyphenated!
);
acf_update_field($args);
}
}
return $value;
}
add_filter('acf/update_value', 'my_field_registration', 10, 3);
This creates a field programmatically in the database which is editable in the admin.
Thanks for your suggestion John, but that would require me to know all possible field names in advance (so I could hide/show the correct one conditionally). There are infinite possibilities in my case.
What about using acf_update_field to write the field to the database? From includes/api-field.php:
/*
* acf_update_field
*
* This function will update a field into the DB.
* The returned field will always contain an ID
*
* @type function
* @date 1/10/13
* @since 5.0.0
*
* @param $field (array)
* @return $field (array)
*/
function acf_update_field( $field = false, $specific = false )
I could construct a field object and call this function perhaps?
I should clarify that I want the registered field to appear in the admin UI.
Should I be creating the field as an acf-field custom post type in the database?
