Dynamically populate between 2 repeater fields

• houseofhands

• February 8, 2019 at 1:15 am

Need help

I’m trying to dynamically populate a select field’s choices, using example 2 on https://www.advancedcustomfields.com/resources/dynamically-populate-a-select-fields-choices/

I tried several scenario’s, but all failed.
It’s seemed simple, but I’ve been struggling for some time … so I’m reaching out.

I have 2 ACF groups

1. ACFG01
1a. ACFG01-F01 (Repeater field)
1.1a ACFG-F01-SOURCE (Text Field)

2. ACFG02
2a. ACFG02-F01 (Repeater field)
2.1a ACFG-F01-TARGET (Select Field)

I would like 1) ACFG-F01-SOURCE to occupy ACFG-F01-TARGET and 2) keep ACFG-F01-TARGET up-to-date whenever ACFG-F01-SOURCE is updated.

Any help or pointers are very welcome. Thanks in advance!

• houseofhands

• February 19, 2019 at 3:25 am

function acf_load_field_choices( $field ) {
    
    // reset choices
    $field['choices'] = array();

    // if has rows
    if( have_rows('ACFG01-F01', 'option') ) {
        
        // while has rows
        while( have_rows('ACFG01-F01', 'option') ) {
            
            // instantiate row
            the_row();
            
            
            // vars
            $value = get_sub_field('ACFG-F01-SOURCE');
            $label = get_sub_field('ACFG-F01-SOURCE');

            
            // append to choices
            $field['choices'][ $value ] = $label;
            
        }
        
    }

    // return the field
    return $field;
    
}

add_filter('acf/load_field/name=ACFG-F01-TARGET', 'acf_load_field_choices');

Anyone?

• John Huebner

• February 20, 2019 at 12:14 am

As long as the field names are correct and the options page has values in the repeater, there is nothing in your code that looks incorrect.

Is the repeater nested in another field (group, repeater, flex field, etc)?

When you create the options page did you alter the default post_id to save values to?

• houseofhands

• February 20, 2019 at 9:37 pm

Thanks for your reply. I figures it out. I concentrated solely on the load_field code and not on the Options Page, which is mandatory.

For those struggling, add this to your functions.php

if( function_exists('acf_add_options_page') ) {
	
	acf_add_options_page();
	
}

and add your source data there.