acf woocommerce variations
// Render fields at the bottom of variations - does not account for field group order or placement.
add_action( 'woocommerce_product_after_variable_attributes', function( $loop, $variation_data, $variation ) {
global $abcdefgh_i; // Custom global variable to monitor index
$abcdefgh_i = $loop;
// Add filter to update field name
add_filter( 'acf/prepare_field', 'acf_prepare_field_update_field_name' );
// Loop through all field groups
$acf_field_groups = acf_get_field_groups();
foreach( $acf_field_groups as $acf_field_group ) {
foreach( $acf_field_group['location'] as $group_locations ) {
foreach( $group_locations as $rule ) {
// See if field Group has at least one post_type = Variations rule - does not validate other rules
if( $rule['param'] == 'post_type' && $rule['operator'] == '==' && $rule['value'] == 'product_variation' ) {
// Render field Group
acf_render_fields( $variation->ID, acf_get_fields( $acf_field_group ) );
break 2;
}
}
}
}
// Remove filter
remove_filter( 'acf/prepare_field', 'acf_prepare_field_update_field_name' );
}, 10, 3 );
// Filter function to update field names
function acf_prepare_field_update_field_name( $field ) {
global $abcdefgh_i;
$field['name'] = preg_replace( '/^acf\[/', "acf[$abcdefgh_i][", $field['name'] );
return $field;
}
// Save variation data
add_action( 'woocommerce_save_product_variation', function( $variation_id, $i = -1 ) {
// Update all fields for the current variation
if ( ! empty( $_POST['acf'] ) && is_array( $_POST['acf'] ) && array_key_exists( $i, $_POST['acf'] ) && is_array( ( $fields = $_POST['acf'][ $i ] ) ) ) {
foreach ( $fields as $key => $val ) {
update_field( $key, $val, $variation_id );
}
}
}, 10, 2 );