skeeks\cms\models\Tree::getPrev PHP Method

    public function getPrev()
    {
        $tableName = $this->tableName();
        $query = $this->find()->andWhere(['and', ["{$tableName}.[[pid]]" => $this->pid], ['<', "{$tableName}.[[priority]]", $this->priority]])->orderBy(["{$tableName}.[[priority]]" => SORT_ASC])->limit(1);
        $query->multiple = false;
        return $query;
    }