<?php

namespace App\Builders;

use Illuminate\Database\Eloquent\Builder;

class LoanTransactionBuilder extends Builder
{

    public function sum_principal(): self
    {
        return $this->withSum('schedule', 'principal');
    }

    public function sum_interest(): self
    {
        return $this->withSum('schedule', 'interest');
    }

    public function sum_fees(): self
    {
        return $this->withSum('schedule', 'fees');
    }
    
    public function sum_penalty(): self
    {
        return $this->withSum('schedule', 'penalty');
    }

}