function wc1c_delete_woocommerce_attribute($attribute_id)
{
global $wpdb;
$attribute = wc1c_woocommerce_attribute_by_id($attribute_id);
if (!$attribute) {
return false;
}
delete_option("{$attribute['taxonomy']}_children");
$terms = get_terms($attribute['taxonomy'], "hide_empty=0");
foreach ($terms as $term) {
wp_delete_term($term->term_id, $attribute['taxonomy']);
}
$wpdb->delete("{$wpdb->prefix}woocommerce_attribute_taxonomies", compact('attribute_id'));
if (function_exists('wc1c_check_wpdb_error')) {
wc1c_check_wpdb_error();
}
}
function wc1c_clean_woocommerce_attributes($is_full)
{
global $wpdb;
if (!$is_full || WC1C_PREVENT_CLEAN) {
return;
}
$timestamps = get_option('wc1c_timestamp_attributes', array());
if (!$timestamps) {
return;
}
$guids = get_option('wc1c_guid_attributes', array());
$attribute_ids = array();
foreach ($timestamps as $guid => $timestamp) {
if ($timestamp != WC1C_TIMESTAMP) {
$attribute_ids[] = $guids[$guid];
}
}
$attribute_ids = apply_filters('wc1c_clean_attributes', $attribute_ids);
if (!$attribute_ids) {
return;
}
foreach ($attribute_ids as $attribute_id) {
$attribute = wc1c_woocommerce_attribute_by_id($attribute_id);
if (!$attribute) {
continue;
}
wc1c_delete_woocommerce_attribute($attribute_id);
unset($guids[$guid]);
unset($timestamps[$guid]);
$is_deleted = true;
}
if (!empty($is_deleted)) {
$orders = get_option('wc1c_order_attributes', array());
$order_index = array_search($attribute_id, $orders);
if ($order_index !== false) {
unset($orders[$order_index]);
update_option('wc1c_order_attributes', $orders);
}
update_option('wc1c_guid_attributes', $guids);
update_option('wc1c_timestamp_attributes', $timestamps);
}
}