Reply To: Repeater field with many inputs

• nitruoc

• April 3, 2023 at 4:39 pm

Thanks John for your answer.

Sorry for the lack of information from my side.

Firstly in the hook filter acf/prepare_field, I change the field name:

add_filter( 'acf/prepare_field/name=MY_FIELD', function ( $field ) {

	$field['name'] = 'acf[' . $field['key'] . '-clone]';

	return $field;
	
}, 10, 1 );

Secondly to get the value saved in my hidden field (used to save the data as a JSON) I’m using the hook filter acf/load_value:

add_filter( 'acf/load_value/name=MY_FIELD', function ( $value, $post_id, $field ) {

	$field = acf_get_field( $field['name'] );

	$json = get_field( $field['name'] . '-json', $post_id );

	// $data proccessed here

	return $data;

}, 10, 3 );

Finally, I’m using the hook acf/save_post to update my JSON field:

add_filter( 'acf/save_post', function ( $post_id ) {

	$field_name = 'MY_FIELD';

	if ( $field_name ) {

		$field = false;

		foreach ( array_keys( $_POST['acf'] ) as $k ) {

			if ( ! str_contains( $k, '-clone' ) ) {
				continue;
			}

			$field = get_field_object( str_replace( '-clone', '', $k ), $post_id );

			if ( $field['name'] === $field_name ) {
				break;
			}

		}

		if ( $field ) {

			$data = $_POST['acf'][ $field['key'] . '-clone' ];

			update_field( $field['name'] . '-json', json_encode( $data ), $post_id );

		}

	}

}, 10, 1 );

—

To give you more context, my repeater is in a custom post type. For each post I’ve this repeater field containing a list of 250 countries. For each country I need to have 12 fields to get specific data from them for this post.