I have created a form with Gravity forms which in turn creates a user. With ACF I created multiple custom fields in each user which also has a post object field. All my fields work fine, except the post object field.
In my form I have a checkbox field which can hold multiple items, and they are exactly the same as the titles of my posts.
I have contacted GF and they told me to serialized the data (docs: https://docs.gravityforms.com/gform_user_registration_prepared_value/)
And I tried to modify the following code snippet, but nothing seems to work. How can I convert the data from GF checkboxes so that the ACF posts object understands my data? Do I need slug, post IDs, do I need more than just one value? In the past I have filled the post object also with other means than the WP UI (via import tools) and then giving the title of the post is fine.
add_filter( 'gform_user_registration_prepared_value', 'gf_serialize_checkboxes', 10, 5 );
function gf_serialize_checkboxes( $value, $field, $input_id, $entry, $is_username ) {
if ( $field->id == '18' && $field->type == 'checkbox' ) { // Update 18 to your field id number
// Get a comma separated list of checkboxes checked
$checked = is_object( $field ) ? $field->get_value_export( $entry ) : '';
// Convert to array
$values = explode(",", $checked);
// Serialize the data
$value = maybe_serialize( $values );
}
return $value;
}
