Getting user_id from user-edit.php into load_field filter

• pulsewebdesign

• June 23, 2014 at 10:34 pm

Hi,

I am building a domain / hosting manager using acf and the repeater plugin.

I’m adding custom fields to the users profile. i.e. user-edit.php?user_id=4

I have one repeater called domains, and a second called hosting.

A client may have multiple domains but only one hosting package and as such the hosting package needs to be assigned a ‘primary’ domain from the list of domains already entered.

I’m using code based on this:
http://www.advancedcustomfields.com/resources/tutorials/dynamically-populate-a-select-fields-choices/

To populate a drop down of domain names. It all works fine if I use this code in my functions.php:

———————————

/*
// This is commented out but it works!
echo 'user_id: ' . $_GET['user_id'];
exit; 
*/

function my_acf_load_field( $field ) {

	/*
	// This DOES NOT WORK! user_id is blank!
	echo 'user_id: ' . $_GET['user_id'];
	exit; 
	*/

	// reset choices
	$field['choices'] = array();
 
	$domains = get_field('domain_names', 'user_4');
	//$domains = get_field('domain_names', 'user_' . $user_id);
 
	if($domains) {

		while(has_sub_field('domain_names', 'user_4')) {
		//while(has_sub_field('domain_names', 'user_' . $user_id)) {
				
			$url = get_sub_field('domain_name');
			if (!preg_match("~^(?:f|ht)tps?://~i", $url)) {
		        $url = "http://" . $url;
		    }
			
			$field['choices'][ $url ] = $url;					
		}
	}
 
    // Important: return the field
    return $field;
}
 
add_filter('acf/load_field/name=primary_domain', 'my_acf_load_field’);

———————————

The problem is that it only works with a hardcoded user id. No matter what I do I can’t dynamically insert the ‘4′ from the example code above.

From reading the wordpress codex and various forums it seems I should be able to get the user_id either from the GET variables or global variables.

However from within the my_acf_load_field function user_id does not exist and I can’t access any $_GET or global variables. They just come back empty or null.

If I echo:

$screen = get_current_screen();

or $pagenow

I get ‘admin-ajax.php’ instead of ‘user-edit.php’ which I feel may be the source of the problem.

Any ideas how to get the user_id in this scenario?