private function addLogs()
    {
        $createdBy = new GeneratorField();
        $createdBy->name = 'created_by';
        $createdBy->parseDBType('integer');
        $createdBy->parseOptions('if,n');
        $this->fields[] = $createdBy;

        $updatedBy = new GeneratorField();
        $updatedBy->name = 'updated_by';
        $updatedBy->parseDBType('integer');
        $updatedBy->parseOptions('if,n'); // edited by dandisy
        $this->fields[] = $updatedBy;
    }