| private get_fields ( array $args ) : string | ||
| $args | array | Arguments. |
| return | string | The according string with all valid fields included in the given arguments, or '*' if none. |
private function get_fields(array $args)
{
if (!empty($args['fields'])) {
$allowed_fields = array_intersect((array) $args['fields'], array_keys($this->fields));
if ($allowed_fields) {
return implode(', ', esc_sql($allowed_fields));
}
}
return '*';
}