How to pre-fill group fields

Created by Phil Kurth, Modified on Fri, 1 Jul, 2022 at 9:32 AM by Phil Kurth

Group fields require data in a certain format in order to render correctly. The required format is an array of sub field keys mapped to the pre-filled values. e.g;

add_filter( 'af/field/prefill_value', function ( $value, $field, $form, $args ) {
  // If we need to run this only on a specific form, check for the form key.
  if ( $form['key'] !== 'YOUR_FORM_KEY_HERE' ) {
    return $value;
  }
  
  // Check for the desired group field and override the value by mapping sub field values to keys.
  if ( $field['name'] === 'YOUR_GROUP_FIELD_NAME_HERE' ) {
    $value = [
      'field_12345678' => 'Sub field 1 value',
      'field_23456789' => 'Sub field 2 value',
    ];
  }
  
  return $value;
}, 10, 4 );