invoiceninja/app/Factory/InvoiceItemFactory.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com)
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

namespace App\Factory;

use Illuminate\Support\Carbon;

//use Faker\Generator as Faker;

class InvoiceItemFactory
{
    public static function create() :\stdClass
    {
        $item = new \stdClass;
        $item->quantity = 0;
        $item->cost = 0;
        $item->product_key = '';
        $item->notes = '';
        $item->discount = 0;
        $item->is_amount_discount = true;
        $item->tax_name1 = '';
        $item->tax_rate1 = 0;
        $item->tax_name2 = '';
        $item->tax_rate2 = 0;
        $item->tax_name3 = '';
        $item->tax_rate3 = 0;
        $item->sort_id = 0;
        $item->line_total = 0;
        $item->date = Carbon::now();
        $item->custom_value1 = null;
        $item->custom_value2 = null;
        $item->custom_value3 = null;
        $item->custom_value4 = null;

        return $item;
    }

    /**
     * Generates an array of dummy data for invoice items
     * @param  int    $items Number of line items to create
     * @return array        array of objects
     */
    public static function generate(int $items = 1) :array
    {
        $faker = \Faker\Factory::create();

        $data = [];

        for ($x=0; $x<$items; $x++) {
            $item = self::create();
            $item->quantity = $faker->numberBetween(1, 10);
            $item->cost = $faker->randomFloat(2, 1, 1000);
            $item->line_total = $item->quantity * $item->cost;
            $item->is_amount_discount = true;
            $item->discount = $faker->numberBetween(1, 10);
            $item->notes = $faker->realText(20);
            $item->product_key = $faker->word();
            $item->custom_value1 = $faker->realText(10);
            $item->custom_value2 = $faker->realText(10);
            $item->custom_value3 = $faker->realText(10);
            $item->custom_value4 = $faker->realText(10);
            $item->tax_name1 = 'GST';
            $item->tax_rate1 = 10.00;
            
            $data[] = $item;
        }
        
        return $data;
    }
}