Reply To: ACF on product variations: almost works

• johnw6761

• September 17, 2019 at 8:19 pm

@exnihilo_maxime This is the whole code I am using

$GLOBALS['wc_loop_variation_id'] = null;

function is_field_group_for_variation($field_group, $variation_data, $variation_post) {
	return (preg_match( '/Variation/i', $field_group['title'] ) == true);
}

add_action( 'woocommerce_product_after_variable_attributes', function( $loop_index, $variation_data, $variation_post ) {
	$GLOBALS['wc_loop_variation_id'] = $variation_post->ID;

	foreach ( acf_get_field_groups() as $field_group ) {
		if ( is_field_group_for_variation( $field_group, $variation_data, $variation_post ) ) {
			acf_render_fields( $variation_post->ID, acf_get_fields( $field_group ) );
		}
	}

	$GLOBALS['wc_loop_variation_id'] = null;
}, 10, 3 );

add_action( 'woocommerce_save_product_variation', function( $variation_id, $loop_index ) {
	if ( !isset( $_POST['acf_variation'][$variation_id] ) ) {
		return;
	}

	$_POST['acf'] = $_POST['acf_variation'][$variation_id];

	acf()->input->save_post( $variation_id );
}, 10, 2 );

add_filter( 'acf/prepare_field', function ( $field ) {
	if ( !$GLOBALS['wc_loop_variation_id'] ) {
		return $field;
	}

	$field['name'] = preg_replace( '/^acf\[/', 'acf_variation[' . $GLOBALS['wc_loop_variation_id'] . '][', $field['name'] );

	return $field;
}, 10, 1);

and this is line 148
acf()->input->save_post( $variation_id );