WP_Network_Query::parse_orderby() protected WP 4.6.0
Parses and sanitizes 'orderby' keys passed to the network query.
{} It's a method of the class: WP_Network_Query{}
No Hooks.
Return
String/false. Value to used in the ORDER clause. False otherwise.
Usage
// protected - for code of main (parent) or child class $result = $this->parse_orderby( $orderby );
- $orderby(string) (required)
- Alias for the field to order by.
Notes
- Global. wpdb. $wpdb WordPress database abstraction object.
Changelog
Since 4.6.0 | Introduced. |
Code of WP_Network_Query::parse_orderby() WP Network Query::parse orderby WP 5.6
protected function parse_orderby( $orderby ) {
global $wpdb;
$allowed_keys = array(
'id',
'domain',
'path',
);
$parsed = false;
if ( 'network__in' === $orderby ) {
$network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) );
$parsed = "FIELD( {$wpdb->site}.id, $network__in )";
} elseif ( 'domain_length' === $orderby || 'path_length' === $orderby ) {
$field = substr( $orderby, 0, -7 );
$parsed = "CHAR_LENGTH($wpdb->site.$field)";
} elseif ( in_array( $orderby, $allowed_keys, true ) ) {
$parsed = "$wpdb->site.$orderby";
}
return $parsed;
}