views_handler_sort_ncs_last_comment_name.inc

<?php


/**
 * Sort handler to sort by last comment name which might be in 2 different
 * fields.
 *
 * @ingroup views_sort_handlers
 */
class views_handler_sort_ncs_last_comment_name extends views_handler_sort {
    function query() {
        $this->ensure_my_table();
        $join = new views_join();
        $join->construct('users', $this->table_alias, 'last_comment_uid', 'uid');
        // @todo this might be safer if we had an ensure_relationship rather than guessing
        // the table alias. Though if we did that we'd be guessing the relationship name
        // so that doesn't matter that much.
        //    $this->user_table = $this->query->add_relationship(NULL, $join, 'users', $this->relationship);
        $this->user_table = $this->query
            ->ensure_table('ncs_users', $this->relationship, $join);
        $this->user_field = $this->query
            ->add_field($this->user_table, 'name');
        // Add the field.
        $this->query
            ->add_orderby(NULL, "LOWER(COALESCE({$this->user_table}.name, {$this->table_alias}.{$this->field}))", $this->options['order'], $this->table_alias . '_' . $this->field);
    }

}