Builder Pattern Method Chaining 1 code example

Example: Builder Pattern Method Chaining 1

class ReportService {

    private $year;

    public function setYear($year)
    {
        $this->year = $year;

        return $this;
    }

    public function getTransactionReport(int $projectId = NULL)
    {
        $q = Transaction::with('project')
            ->with('transaction_type')
            ->with('income_source')
            ->with('currency')
            ->whereYear('transaction_date', $this->year)
            ->orderBy('transaction_date', 'desc');
        // ... Other code